212 lines
65 KiB
JavaScript
212 lines
65 KiB
JavaScript
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<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;"><</span><span style="--shiki-light:#22863A;--shiki-dark:#8DDB8C;">dependency</span><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;">></span></span>
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<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;"> <</span><span style="--shiki-light:#22863A;--shiki-dark:#8DDB8C;">groupId</span><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;">>com.baomidou</</span><span style="--shiki-light:#22863A;--shiki-dark:#8DDB8C;">groupId</span><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;">></span></span>
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<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;"> <</span><span style="--shiki-light:#22863A;--shiki-dark:#8DDB8C;">artifactId</span><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;">>mybatis-plus-generator</</span><span style="--shiki-light:#22863A;--shiki-dark:#8DDB8C;">artifactId</span><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;">></span></span>
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<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;"> <</span><span style="--shiki-light:#22863A;--shiki-dark:#8DDB8C;">version</span><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;">>3.4.1</</span><span style="--shiki-light:#22863A;--shiki-dark:#8DDB8C;">version</span><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;">></span></span>
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<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;"></</span><span style="--shiki-light:#22863A;--shiki-dark:#8DDB8C;">dependency</span><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;">></span></span>
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<span class="line"></span>
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<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#768390;"><!-- 模板引擎 依赖 --></span></span>
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<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;"><</span><span style="--shiki-light:#22863A;--shiki-dark:#8DDB8C;">dependency</span><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;">></span></span>
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<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;"> <</span><span style="--shiki-light:#22863A;--shiki-dark:#8DDB8C;">groupId</span><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;">>org.freemarker</</span><span style="--shiki-light:#22863A;--shiki-dark:#8DDB8C;">groupId</span><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;">></span></span>
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<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;"> <</span><span style="--shiki-light:#22863A;--shiki-dark:#8DDB8C;">artifactId</span><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;">>freemarker</</span><span style="--shiki-light:#22863A;--shiki-dark:#8DDB8C;">artifactId</span><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;">></span></span>
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<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;"> <</span><span style="--shiki-light:#22863A;--shiki-dark:#8DDB8C;">version</span><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;">>2.3.31</</span><span style="--shiki-light:#22863A;--shiki-dark:#8DDB8C;">version</span><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;">></span></span>
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<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;"></</span><span style="--shiki-light:#22863A;--shiki-dark:#8DDB8C;">dependency</span><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;">></span></span></code></pre></div><div class="tip custom-block"><p class="custom-block-title">笔者说</p><p>笔者这里选择的模板引擎是 freemarker，它是 Apache 开源的一个知名模板技术。</p><p>另外，MP 也支持 Velocity（默认）、Beetl，你可以选择自己熟悉的模板引擎，如果都不满足要求，也可以采用自定义模板引擎。[1]</p></div><h3 id="创建入口类" tabindex="-1">创建入口类 <a class="header-anchor" href="#创建入口类" aria-label="Permalink to "创建入口类""></a></h3><p>添加好依赖之后，创建一个生成器入口类，就可以开始使用 MP 的代码生成器了。</p><div class="language-java vp-adaptive-theme"><button title="Copy Code" class="copy"></button><span class="lang">java</span><pre class="shiki shiki-themes github-light github-dark-dimmed vp-code"><code><span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#768390;">/**</span></span>
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<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#768390;"> * MyBatis Plus 代码生成器入口类</span></span>
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<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#768390;"> * 执行 main 方法控制台输入模块表名回车自动生成对应项目目录中</span></span>
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<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#768390;"> *</span></span>
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<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#768390;"> * </span><span style="--shiki-light:#D73A49;--shiki-dark:#F47067;">@author</span><span style="--shiki-light:#6A737D;--shiki-dark:#768390;"> Charles7c</span></span>
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<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#768390;"> * </span><span style="--shiki-light:#D73A49;--shiki-dark:#F47067;">@since</span><span style="--shiki-light:#6A737D;--shiki-dark:#768390;"> 2021/1/28</span></span>
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<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#768390;"> */</span></span>
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<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F47067;">public</span><span style="--shiki-light:#D73A49;--shiki-dark:#F47067;"> class</span><span style="--shiki-light:#6F42C1;--shiki-dark:#F69D50;"> CodeGenerator</span><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;"> {</span></span>
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<span class="line"></span>
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<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F47067;"> public</span><span style="--shiki-light:#D73A49;--shiki-dark:#F47067;"> static</span><span style="--shiki-light:#D73A49;--shiki-dark:#F47067;"> void</span><span style="--shiki-light:#6F42C1;--shiki-dark:#DCBDFB;"> main</span><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;">(</span><span style="--shiki-light:#D73A49;--shiki-dark:#F47067;">String</span><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;">[] </span><span style="--shiki-light:#E36209;--shiki-dark:#F69D50;">args</span><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;">) {</span></span>
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<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;"> </span></span>
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<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;"> }</span></span>
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<span class="line"></span>
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<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;">}</span></span></code></pre></div><h3 id="编写配置" tabindex="-1">编写配置 <a class="header-anchor" href="#编写配置" aria-label="Permalink to "编写配置""></a></h3><p>MP 的代码生成器提供了大量的自定义配置参数供用户选择，能够满足绝大部分人的使用需求[1]，接下来，我们在 <code>main</code> 方法中配置一下生成器。</p><p>第一步：初始化代码生成器。</p><div class="language-java vp-adaptive-theme"><button title="Copy Code" class="copy"></button><span class="lang">java</span><pre class="shiki shiki-themes github-light github-dark-dimmed vp-code"><code><span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#768390;">// 创建代码生成器对象</span></span>
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<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;">AutoGenerator</span><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;"> generator</span><span style="--shiki-light:#D73A49;--shiki-dark:#F47067;"> =</span><span style="--shiki-light:#D73A49;--shiki-dark:#F47067;"> new</span><span style="--shiki-light:#6F42C1;--shiki-dark:#DCBDFB;"> AutoGenerator</span><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;">();</span></span>
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<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#768390;">// 指定模板引擎为FreeMarker，如果你使用默认的引擎velocity则无需此配置</span></span>
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<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;">generator.</span><span style="--shiki-light:#6F42C1;--shiki-dark:#DCBDFB;">setTemplateEngine</span><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;">(</span><span style="--shiki-light:#D73A49;--shiki-dark:#F47067;">new</span><span style="--shiki-light:#6F42C1;--shiki-dark:#DCBDFB;"> FreemarkerTemplateEngine</span><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;">());</span></span></code></pre></div><p>第二步：指定全局配置。</p><div class="language-java vp-adaptive-theme"><button title="Copy Code" class="copy"></button><span class="lang">java</span><pre class="shiki shiki-themes github-light github-dark-dimmed vp-code"><code><span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#768390;">// 创建全局配置对象</span></span>
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<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;">GlobalConfig</span><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;"> globalConfig</span><span style="--shiki-light:#D73A49;--shiki-dark:#F47067;"> =</span><span style="--shiki-light:#D73A49;--shiki-dark:#F47067;"> new</span><span style="--shiki-light:#6F42C1;--shiki-dark:#DCBDFB;"> GlobalConfig</span><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;">();</span></span>
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<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#768390;">// 指定生成文件的输出目录【默认 D 盘根目录】</span></span>
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<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#768390;">// System.getProperty("user.dir") 获取到的是当前项目的绝对路径</span></span>
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<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#768390;">// 输出目录示例：D:\\IdeaProjects\\mybatis-plus-demo\\src\\main\\java</span></span>
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<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;">globalConfig.</span><span style="--shiki-light:#6F42C1;--shiki-dark:#DCBDFB;">setOutputDir</span><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;">(System.</span><span style="--shiki-light:#6F42C1;--shiki-dark:#DCBDFB;">getProperty</span><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;">(</span><span style="--shiki-light:#032F62;--shiki-dark:#96D0FF;">"user.dir"</span><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;">) </span><span style="--shiki-light:#D73A49;--shiki-dark:#F47067;">+</span><span style="--shiki-light:#032F62;--shiki-dark:#96D0FF;"> "/src/main/java"</span><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;">);</span></span>
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<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#768390;">// 指定开发人员</span></span>
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<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;">globalConfig.</span><span style="--shiki-light:#6F42C1;--shiki-dark:#DCBDFB;">setAuthor</span><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;">(</span><span style="--shiki-light:#032F62;--shiki-dark:#96D0FF;">"Charles7c"</span><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;">);</span></span>
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<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#768390;">// 指定是否打开输出目录</span></span>
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<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;">globalConfig.</span><span style="--shiki-light:#6F42C1;--shiki-dark:#DCBDFB;">setOpen</span><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;">(</span><span style="--shiki-light:#005CC5;--shiki-dark:#6CB6FF;">false</span><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;">);</span></span>
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<span class="line"></span>
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<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#768390;">// 指定全局配置</span></span>
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<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;">generator.</span><span style="--shiki-light:#6F42C1;--shiki-dark:#DCBDFB;">setGlobalConfig</span><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;">(globalConfig);</span></span></code></pre></div><p>第三步：指定包名配置，通过该配置，指定生成代码的包路径。</p><div class="language-java vp-adaptive-theme"><button title="Copy Code" class="copy"></button><span class="lang">java</span><pre class="shiki shiki-themes github-light github-dark-dimmed vp-code"><code><span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#768390;">// 创建包配置对象</span></span>
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<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;">PackageConfig</span><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;"> packageConfig</span><span style="--shiki-light:#D73A49;--shiki-dark:#F47067;"> =</span><span style="--shiki-light:#D73A49;--shiki-dark:#F47067;"> new</span><span style="--shiki-light:#6F42C1;--shiki-dark:#DCBDFB;"> PackageConfig</span><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;">();</span></span>
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<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#768390;">// 指定父包名</span></span>
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<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;">packageConfig.</span><span style="--shiki-light:#6F42C1;--shiki-dark:#DCBDFB;">setParent</span><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;">(</span><span style="--shiki-light:#032F62;--shiki-dark:#96D0FF;">"com.example"</span><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;">);</span></span>
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<span class="line"></span>
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<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#768390;">// 指定包名配置</span></span>
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<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;">generator.</span><span style="--shiki-light:#6F42C1;--shiki-dark:#DCBDFB;">setPackageInfo</span><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;">(packageConfig);</span></span></code></pre></div><div class="tip custom-block"><p class="custom-block-title">笔者说</p><p>仅指定父包名就可以，MP 指定好了子包名。看看它的源码吧，实体类的包名默认是 <code>entity</code>，业务类的包名默认是 <code>service</code> ...</p></div><p><img src="`+c+`" alt="202102241307200"></p><p>第四步：指定数据源配置，通过该配置，指定需要生成代码的具体数据库。</p><div class="language-java vp-adaptive-theme"><button title="Copy Code" class="copy"></button><span class="lang">java</span><pre class="shiki shiki-themes github-light github-dark-dimmed vp-code"><code><span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#768390;">// 创建数据源配置对象</span></span>
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<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;">DataSourceConfig</span><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;"> dataSourceConfig</span><span style="--shiki-light:#D73A49;--shiki-dark:#F47067;"> =</span><span style="--shiki-light:#D73A49;--shiki-dark:#F47067;"> new</span><span style="--shiki-light:#6F42C1;--shiki-dark:#DCBDFB;"> DataSourceConfig</span><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;">();</span></span>
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<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#768390;">// 指定数据源信息</span></span>
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<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;">dataSourceConfig.</span><span style="--shiki-light:#6F42C1;--shiki-dark:#DCBDFB;">setUrl</span><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;">(</span><span style="--shiki-light:#032F62;--shiki-dark:#96D0FF;">"jdbc:mysql://localhost:3306/mybatisplus_demodb?serverTimezone=Asia/Shanghai&useUnicode=true&useSSL=false&characterEncoding=utf8"</span><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;">);</span></span>
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<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;">dataSourceConfig.</span><span style="--shiki-light:#6F42C1;--shiki-dark:#DCBDFB;">setDriverName</span><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;">(</span><span style="--shiki-light:#032F62;--shiki-dark:#96D0FF;">"com.mysql.cj.jdbc.Driver"</span><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;">);</span></span>
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<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;">dataSourceConfig.</span><span style="--shiki-light:#6F42C1;--shiki-dark:#DCBDFB;">setUsername</span><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;">(</span><span style="--shiki-light:#032F62;--shiki-dark:#96D0FF;">"root"</span><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;">);</span></span>
|
||
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;">dataSourceConfig.</span><span style="--shiki-light:#6F42C1;--shiki-dark:#DCBDFB;">setPassword</span><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;">(</span><span style="--shiki-light:#032F62;--shiki-dark:#96D0FF;">"root"</span><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;">);</span></span>
|
||
<span class="line"></span>
|
||
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#768390;">// 指定数据源配置</span></span>
|
||
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;">generator.</span><span style="--shiki-light:#6F42C1;--shiki-dark:#DCBDFB;">setDataSource</span><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;">(dataSourceConfig);</span></span></code></pre></div><p>第五步：指定策略配置，通过该配置，可指定需要生成哪些表或者排除哪些表。</p><div class="language-java vp-adaptive-theme"><button title="Copy Code" class="copy"></button><span class="lang">java</span><pre class="shiki shiki-themes github-light github-dark-dimmed vp-code"><code><span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#768390;">// 创建策略配置对象</span></span>
|
||
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;">StrategyConfig</span><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;"> strategyConfig</span><span style="--shiki-light:#D73A49;--shiki-dark:#F47067;"> =</span><span style="--shiki-light:#D73A49;--shiki-dark:#F47067;"> new</span><span style="--shiki-light:#6F42C1;--shiki-dark:#DCBDFB;"> StrategyConfig</span><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;">();</span></span>
|
||
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#768390;">// 指定数据库表映射到实体的命名策略</span></span>
|
||
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#768390;">// 下划线转驼峰命名：underline_to_camel</span></span>
|
||
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#768390;">// 不做任何改变，原样输出：no_change</span></span>
|
||
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;">strategyConfig.</span><span style="--shiki-light:#6F42C1;--shiki-dark:#DCBDFB;">setNaming</span><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;">(NamingStrategy.underline_to_camel);</span></span>
|
||
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#768390;">// 指定数据库表字段映射到实体的命名策略</span></span>
|
||
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;">strategyConfig.</span><span style="--shiki-light:#6F42C1;--shiki-dark:#DCBDFB;">setColumnNaming</span><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;">(NamingStrategy.underline_to_camel);</span></span>
|
||
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#768390;">// 指定实体类是否采用 lombok 注解</span></span>
|
||
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;">strategyConfig.</span><span style="--shiki-light:#6F42C1;--shiki-dark:#DCBDFB;">setEntityLombokModel</span><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;">(</span><span style="--shiki-light:#005CC5;--shiki-dark:#6CB6FF;">true</span><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;">);</span></span>
|
||
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#768390;">// 指定生成的Controller类是否采用@RestController注解</span></span>
|
||
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#768390;">// 默认false：@Controller -> true：@RestController</span></span>
|
||
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;">strategyConfig.</span><span style="--shiki-light:#6F42C1;--shiki-dark:#DCBDFB;">setRestControllerStyle</span><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;">(</span><span style="--shiki-light:#005CC5;--shiki-dark:#6CB6FF;">true</span><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;">);</span></span>
|
||
<span class="line"></span>
|
||
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#768390;">// 指定策略配置</span></span>
|
||
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;">generator.</span><span style="--shiki-light:#6F42C1;--shiki-dark:#DCBDFB;">setStrategy</span><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;">(strategyConfig);</span></span></code></pre></div><p>第六步：执行生成。</p><div class="language-java vp-adaptive-theme"><button title="Copy Code" class="copy"></button><span class="lang">java</span><pre class="shiki shiki-themes github-light github-dark-dimmed vp-code"><code><span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#768390;">// 执行生成</span></span>
|
||
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;">generator.</span><span style="--shiki-light:#6F42C1;--shiki-dark:#DCBDFB;">execute</span><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;">();</span></span></code></pre></div><h3 id="测试生成" tabindex="-1">测试生成 <a class="header-anchor" href="#测试生成" aria-label="Permalink to "测试生成""></a></h3><p><img src="`+B+'" alt="202102241308500"></p><h3 id="模块化生成" tabindex="-1">模块化生成 <a class="header-anchor" href="#模块化生成" aria-label="Permalink to "模块化生成""></a></h3><p>上方的使用方式是直接基于所有数据库表进行全部生成，但是当我们的项目进行了模块拆分，这时候我们可以对指定模块的指定表单独生成。</p><p>拆分了模块的项目数据库表，示例如下：</p><p><img src="'+F+'" alt="202102241309600"></p><p>我们也模拟一下，将数据库表重命名为 <code>sys_user</code>。</p><p><img src="'+E+`" alt="202102241310700"></p><p>然后，我们改动一下第三步，添加模块名设置。</p><div class="language-java vp-adaptive-theme"><button title="Copy Code" class="copy"></button><span class="lang">java</span><pre class="shiki shiki-themes github-light github-dark-dimmed vp-code"><code><span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#768390;">// 创建包配置对象</span></span>
|
||
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;">PackageConfig</span><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;"> packageConfig</span><span style="--shiki-light:#D73A49;--shiki-dark:#F47067;"> =</span><span style="--shiki-light:#D73A49;--shiki-dark:#F47067;"> new</span><span style="--shiki-light:#6F42C1;--shiki-dark:#DCBDFB;"> PackageConfig</span><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;">();</span></span>
|
||
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#768390;">// 指定父包名</span></span>
|
||
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;">packageConfig.</span><span style="--shiki-light:#6F42C1;--shiki-dark:#DCBDFB;">setParent</span><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;">(</span><span style="--shiki-light:#032F62;--shiki-dark:#96D0FF;">"com.example"</span><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;">);</span></span>
|
||
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#768390;">// 指定父包下模块名，例如：用户模块user、角色模块role...</span></span>
|
||
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#768390;">// 如果拆分输入模块，则每个模块有自己的全套controller、service、dao...</span></span>
|
||
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;">packageConfig.</span><span style="--shiki-light:#6F42C1;--shiki-dark:#DCBDFB;">setModuleName</span><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;">(</span><span style="--shiki-light:#6F42C1;--shiki-dark:#DCBDFB;">scanner</span><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;">(</span><span style="--shiki-light:#032F62;--shiki-dark:#96D0FF;">"模块名"</span><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;">));</span></span>
|
||
<span class="line"></span>
|
||
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#768390;">// 指定包名配置</span></span>
|
||
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;">generator.</span><span style="--shiki-light:#6F42C1;--shiki-dark:#DCBDFB;">setPackageInfo</span><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;">(packageConfig);</span></span></code></pre></div><p>再改动一下第五步，添加要进行代码生成的数据表设置及数据表前缀去除设置。</p><div class="language-java vp-adaptive-theme"><button title="Copy Code" class="copy"></button><span class="lang">java</span><pre class="shiki shiki-themes github-light github-dark-dimmed vp-code"><code><span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#768390;">// 创建策略配置对象</span></span>
|
||
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;">StrategyConfig</span><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;"> strategyConfig</span><span style="--shiki-light:#D73A49;--shiki-dark:#F47067;"> =</span><span style="--shiki-light:#D73A49;--shiki-dark:#F47067;"> new</span><span style="--shiki-light:#6F42C1;--shiki-dark:#DCBDFB;"> StrategyConfig</span><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;">();</span></span>
|
||
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#768390;">// 指定数据库表映射到实体的命名策略</span></span>
|
||
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#768390;">// 下划线转驼峰命名：underline_to_camel</span></span>
|
||
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#768390;">// 不做任何改变，原样输出：no_change</span></span>
|
||
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;">strategyConfig.</span><span style="--shiki-light:#6F42C1;--shiki-dark:#DCBDFB;">setNaming</span><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;">(NamingStrategy.underline_to_camel);</span></span>
|
||
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#768390;">// 指定数据库表字段映射到实体的命名策略</span></span>
|
||
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;">strategyConfig.</span><span style="--shiki-light:#6F42C1;--shiki-dark:#DCBDFB;">setColumnNaming</span><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;">(NamingStrategy.underline_to_camel);</span></span>
|
||
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#768390;">// 指定实体类是否采用 lombok 注解</span></span>
|
||
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;">strategyConfig.</span><span style="--shiki-light:#6F42C1;--shiki-dark:#DCBDFB;">setEntityLombokModel</span><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;">(</span><span style="--shiki-light:#005CC5;--shiki-dark:#6CB6FF;">true</span><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;">);</span></span>
|
||
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#768390;">// 指定生成的Controller类是否采用@RestController注解</span></span>
|
||
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#768390;">// 默认false：@Controller -> true：@RestController</span></span>
|
||
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;">strategyConfig.</span><span style="--shiki-light:#6F42C1;--shiki-dark:#DCBDFB;">setRestControllerStyle</span><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;">(</span><span style="--shiki-light:#005CC5;--shiki-dark:#6CB6FF;">true</span><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;">);</span></span>
|
||
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#768390;">// 指定需要包含的表名，允许正则表达式（与exclude二选一配置）</span></span>
|
||
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;">strategyConfig.</span><span style="--shiki-light:#6F42C1;--shiki-dark:#DCBDFB;">setInclude</span><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;">(</span><span style="--shiki-light:#6F42C1;--shiki-dark:#DCBDFB;">scanner</span><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;">(</span><span style="--shiki-light:#032F62;--shiki-dark:#96D0FF;">"表名，多个英文逗号分割"</span><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;">).</span><span style="--shiki-light:#6F42C1;--shiki-dark:#DCBDFB;">split</span><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;">(</span><span style="--shiki-light:#032F62;--shiki-dark:#96D0FF;">","</span><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;">));</span></span>
|
||
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#768390;">// 指定要去除的表前缀</span></span>
|
||
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#768390;">// 如果表是按模块划分，例如：系统模块的用户表是 sys_user，那么要去除的表前缀就是 sys_</span></span>
|
||
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;">strategyConfig.</span><span style="--shiki-light:#6F42C1;--shiki-dark:#DCBDFB;">setTablePrefix</span><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;">(packageConfig.</span><span style="--shiki-light:#6F42C1;--shiki-dark:#DCBDFB;">getModuleName</span><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;">() </span><span style="--shiki-light:#D73A49;--shiki-dark:#F47067;">+</span><span style="--shiki-light:#032F62;--shiki-dark:#96D0FF;"> "_"</span><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;">);</span></span>
|
||
<span class="line"></span>
|
||
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#768390;">// 指定策略配置</span></span>
|
||
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;">generator.</span><span style="--shiki-light:#6F42C1;--shiki-dark:#DCBDFB;">setStrategy</span><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;">(strategyConfig);</span></span></code></pre></div><p>为了输入更加方便，我们可以定义一个 <code>scanner</code> 方法来动态输入。</p><div class="language-java vp-adaptive-theme"><button title="Copy Code" class="copy"></button><span class="lang">java</span><pre class="shiki shiki-themes github-light github-dark-dimmed vp-code"><code><span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#768390;">/**</span></span>
|
||
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#768390;"> * <p></span></span>
|
||
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#768390;"> * 读取控制台内容</span></span>
|
||
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#768390;"> * </p></span></span>
|
||
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#768390;"> */</span></span>
|
||
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F47067;">public</span><span style="--shiki-light:#D73A49;--shiki-dark:#F47067;"> static</span><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;"> String </span><span style="--shiki-light:#6F42C1;--shiki-dark:#DCBDFB;">scanner</span><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;">(String tip) {</span></span>
|
||
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;"> Scanner</span><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;"> scanner</span><span style="--shiki-light:#D73A49;--shiki-dark:#F47067;"> =</span><span style="--shiki-light:#D73A49;--shiki-dark:#F47067;"> new</span><span style="--shiki-light:#6F42C1;--shiki-dark:#DCBDFB;"> Scanner</span><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;">(System.in);</span></span>
|
||
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;"> StringBuilder</span><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;"> help</span><span style="--shiki-light:#D73A49;--shiki-dark:#F47067;"> =</span><span style="--shiki-light:#D73A49;--shiki-dark:#F47067;"> new</span><span style="--shiki-light:#6F42C1;--shiki-dark:#DCBDFB;"> StringBuilder</span><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;">();</span></span>
|
||
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;"> help.</span><span style="--shiki-light:#6F42C1;--shiki-dark:#DCBDFB;">append</span><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;">(</span><span style="--shiki-light:#032F62;--shiki-dark:#96D0FF;">"请输入"</span><span style="--shiki-light:#D73A49;--shiki-dark:#F47067;"> +</span><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;"> tip </span><span style="--shiki-light:#D73A49;--shiki-dark:#F47067;">+</span><span style="--shiki-light:#032F62;--shiki-dark:#96D0FF;"> "："</span><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;">);</span></span>
|
||
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;"> System.out.</span><span style="--shiki-light:#6F42C1;--shiki-dark:#DCBDFB;">println</span><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;">(help.</span><span style="--shiki-light:#6F42C1;--shiki-dark:#DCBDFB;">toString</span><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;">());</span></span>
|
||
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F47067;"> if</span><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;"> (scanner.</span><span style="--shiki-light:#6F42C1;--shiki-dark:#DCBDFB;">hasNext</span><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;">()) {</span></span>
|
||
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;"> String</span><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;"> ipt</span><span style="--shiki-light:#D73A49;--shiki-dark:#F47067;"> =</span><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;"> scanner.</span><span style="--shiki-light:#6F42C1;--shiki-dark:#DCBDFB;">next</span><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;">();</span></span>
|
||
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F47067;"> if</span><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;"> (StringUtils.</span><span style="--shiki-light:#6F42C1;--shiki-dark:#DCBDFB;">isNotBlank</span><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;">(ipt)) {</span></span>
|
||
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F47067;"> return</span><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;"> ipt;</span></span>
|
||
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;"> }</span></span>
|
||
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;"> }</span></span>
|
||
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F47067;"> throw</span><span style="--shiki-light:#D73A49;--shiki-dark:#F47067;"> new</span><span style="--shiki-light:#6F42C1;--shiki-dark:#DCBDFB;"> MybatisPlusException</span><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;">(</span><span style="--shiki-light:#032F62;--shiki-dark:#96D0FF;">"请输入正确的"</span><span style="--shiki-light:#D73A49;--shiki-dark:#F47067;"> +</span><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;"> tip </span><span style="--shiki-light:#D73A49;--shiki-dark:#F47067;">+</span><span style="--shiki-light:#032F62;--shiki-dark:#96D0FF;"> "！"</span><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;">);</span></span>
|
||
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;">}</span></span></code></pre></div><p>测试一下效果吧。</p><p><img src="`+u+`" alt="202102241311800"></p><div class="tip custom-block"><p class="custom-block-title">笔者说</p><p>在策略配置中还可以通过 <code>setSuperXXClass(Class)</code> 系列方法对 Enity、Service、Controller 等设置自定义父类，这样生成的代码就直接会继承好指定类了。例如：<code>setSuperEntityClass()</code> 方法可以指定好 Entity 的父类，这样审计类信息就不用每个实体类里都来一份了，做数据填充设置也会更加方便。</p></div><h2 id="参考资料" tabindex="-1">参考资料 <a class="header-anchor" href="#参考资料" aria-label="Permalink to "参考资料""></a></h2><p>[1]MyBatis Plus 代码生成器：<a href="https://baomidou.com/guide/generator.html" target="_blank" rel="noreferrer">https://baomidou.com/guide/generator.html</a></p><h2 id="后记" tabindex="-1">后记 <a class="header-anchor" href="#后记" aria-label="Permalink to "后记""></a></h2><p><strong>C：</strong> 最后在下方附上本篇的完整代码生成器配置代码，更多的配置你可以去看看 MP 官网代码生成器部分。其实所有的代码生成器都是那套思路，即模板 + 数据 + 模板引擎。后面抽时间，笔者也专门写一篇来介绍下常见的代码生成器实现思路，这样你也可以 “取悦” 一下你自己。</p><div class="language-java vp-adaptive-theme"><button title="Copy Code" class="copy"></button><span class="lang">java</span><pre class="shiki shiki-themes github-light github-dark-dimmed vp-code"><code><span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#768390;">// 演示例子，执行 main 方法控制台输入模块表名回车自动生成对应项目目录中</span></span>
|
||
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F47067;">public</span><span style="--shiki-light:#D73A49;--shiki-dark:#F47067;"> class</span><span style="--shiki-light:#6F42C1;--shiki-dark:#F69D50;"> CodeGenerator</span><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;"> {</span></span>
|
||
<span class="line"></span>
|
||
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#768390;"> /**</span></span>
|
||
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#768390;"> * 读取控制台内容</span></span>
|
||
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#768390;"> */</span></span>
|
||
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F47067;"> public</span><span style="--shiki-light:#D73A49;--shiki-dark:#F47067;"> static</span><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;"> String </span><span style="--shiki-light:#6F42C1;--shiki-dark:#DCBDFB;">scanner</span><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;">(String </span><span style="--shiki-light:#E36209;--shiki-dark:#F69D50;">tip</span><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;">) {</span></span>
|
||
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;"> Scanner</span><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;"> scanner</span><span style="--shiki-light:#D73A49;--shiki-dark:#F47067;"> =</span><span style="--shiki-light:#D73A49;--shiki-dark:#F47067;"> new</span><span style="--shiki-light:#6F42C1;--shiki-dark:#DCBDFB;"> Scanner</span><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;">(System.in);</span></span>
|
||
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;"> StringBuilder</span><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;"> help</span><span style="--shiki-light:#D73A49;--shiki-dark:#F47067;"> =</span><span style="--shiki-light:#D73A49;--shiki-dark:#F47067;"> new</span><span style="--shiki-light:#6F42C1;--shiki-dark:#DCBDFB;"> StringBuilder</span><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;">();</span></span>
|
||
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;"> help.</span><span style="--shiki-light:#6F42C1;--shiki-dark:#DCBDFB;">append</span><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;">(</span><span style="--shiki-light:#032F62;--shiki-dark:#96D0FF;">"请输入"</span><span style="--shiki-light:#D73A49;--shiki-dark:#F47067;"> +</span><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;"> tip </span><span style="--shiki-light:#D73A49;--shiki-dark:#F47067;">+</span><span style="--shiki-light:#032F62;--shiki-dark:#96D0FF;"> "："</span><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;">);</span></span>
|
||
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;"> System.out.</span><span style="--shiki-light:#6F42C1;--shiki-dark:#DCBDFB;">println</span><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;">(help.</span><span style="--shiki-light:#6F42C1;--shiki-dark:#DCBDFB;">toString</span><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;">());</span></span>
|
||
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F47067;"> if</span><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;"> (scanner.</span><span style="--shiki-light:#6F42C1;--shiki-dark:#DCBDFB;">hasNext</span><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;">()) {</span></span>
|
||
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;"> String</span><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;"> ipt</span><span style="--shiki-light:#D73A49;--shiki-dark:#F47067;"> =</span><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;"> scanner.</span><span style="--shiki-light:#6F42C1;--shiki-dark:#DCBDFB;">next</span><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;">();</span></span>
|
||
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F47067;"> if</span><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;"> (StringUtils.</span><span style="--shiki-light:#6F42C1;--shiki-dark:#DCBDFB;">isNotBlank</span><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;">(ipt)) {</span></span>
|
||
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F47067;"> return</span><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;"> ipt;</span></span>
|
||
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;"> }</span></span>
|
||
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;"> }</span></span>
|
||
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F47067;"> throw</span><span style="--shiki-light:#D73A49;--shiki-dark:#F47067;"> new</span><span style="--shiki-light:#6F42C1;--shiki-dark:#DCBDFB;"> MybatisPlusException</span><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;">(</span><span style="--shiki-light:#032F62;--shiki-dark:#96D0FF;">"请输入正确的"</span><span style="--shiki-light:#D73A49;--shiki-dark:#F47067;"> +</span><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;"> tip </span><span style="--shiki-light:#D73A49;--shiki-dark:#F47067;">+</span><span style="--shiki-light:#032F62;--shiki-dark:#96D0FF;"> "！"</span><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;">);</span></span>
|
||
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;"> }</span></span>
|
||
<span class="line"></span>
|
||
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F47067;"> public</span><span style="--shiki-light:#D73A49;--shiki-dark:#F47067;"> static</span><span style="--shiki-light:#D73A49;--shiki-dark:#F47067;"> void</span><span style="--shiki-light:#6F42C1;--shiki-dark:#DCBDFB;"> main</span><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;">(</span><span style="--shiki-light:#D73A49;--shiki-dark:#F47067;">String</span><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;">[] </span><span style="--shiki-light:#E36209;--shiki-dark:#F69D50;">args</span><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;">) {</span></span>
|
||
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#768390;"> // 1.初始化代码生成器</span></span>
|
||
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#768390;"> // 创建代码生成器对象</span></span>
|
||
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;"> AutoGenerator</span><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;"> generator</span><span style="--shiki-light:#D73A49;--shiki-dark:#F47067;"> =</span><span style="--shiki-light:#D73A49;--shiki-dark:#F47067;"> new</span><span style="--shiki-light:#6F42C1;--shiki-dark:#DCBDFB;"> AutoGenerator</span><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;">();</span></span>
|
||
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#768390;"> // 指定模板引擎为FreeMarker，如果你使用默认的引擎velocity则无需此配置</span></span>
|
||
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;"> generator.</span><span style="--shiki-light:#6F42C1;--shiki-dark:#DCBDFB;">setTemplateEngine</span><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;">(</span><span style="--shiki-light:#D73A49;--shiki-dark:#F47067;">new</span><span style="--shiki-light:#6F42C1;--shiki-dark:#DCBDFB;"> FreemarkerTemplateEngine</span><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;">());</span></span>
|
||
<span class="line"></span>
|
||
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#768390;"> // 2.指定全局配置</span></span>
|
||
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#768390;"> // 创建全局配置对象</span></span>
|
||
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;"> GlobalConfig</span><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;"> globalConfig</span><span style="--shiki-light:#D73A49;--shiki-dark:#F47067;"> =</span><span style="--shiki-light:#D73A49;--shiki-dark:#F47067;"> new</span><span style="--shiki-light:#6F42C1;--shiki-dark:#DCBDFB;"> GlobalConfig</span><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;">();</span></span>
|
||
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#768390;"> // 指定生成文件的输出目录【默认 D 盘根目录】</span></span>
|
||
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#768390;"> // System.getProperty("user.dir") 获取到的是当前项目的绝对路径</span></span>
|
||
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#768390;"> // 输出目录示例：D:\\IdeaProjects\\mybatis-plus-demo\\src\\main\\java</span></span>
|
||
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;"> globalConfig.</span><span style="--shiki-light:#6F42C1;--shiki-dark:#DCBDFB;">setOutputDir</span><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;">(System.</span><span style="--shiki-light:#6F42C1;--shiki-dark:#DCBDFB;">getProperty</span><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;">(</span><span style="--shiki-light:#032F62;--shiki-dark:#96D0FF;">"user.dir"</span><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;">) </span><span style="--shiki-light:#D73A49;--shiki-dark:#F47067;">+</span><span style="--shiki-light:#032F62;--shiki-dark:#96D0FF;"> "/src/main/java"</span><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;">);</span></span>
|
||
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#768390;"> // 指定开发人员</span></span>
|
||
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;"> globalConfig.</span><span style="--shiki-light:#6F42C1;--shiki-dark:#DCBDFB;">setAuthor</span><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;">(</span><span style="--shiki-light:#032F62;--shiki-dark:#96D0FF;">"Charles7c"</span><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;">);</span></span>
|
||
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#768390;"> // 指定是否打开输出目录</span></span>
|
||
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;"> globalConfig.</span><span style="--shiki-light:#6F42C1;--shiki-dark:#DCBDFB;">setOpen</span><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;">(</span><span style="--shiki-light:#005CC5;--shiki-dark:#6CB6FF;">false</span><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;">);</span></span>
|
||
<span class="line"></span>
|
||
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#768390;"> // 指定全局配置</span></span>
|
||
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;"> generator.</span><span style="--shiki-light:#6F42C1;--shiki-dark:#DCBDFB;">setGlobalConfig</span><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;">(globalConfig);</span></span>
|
||
<span class="line"></span>
|
||
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#768390;"> // 3.指定包名配置</span></span>
|
||
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#768390;"> // 创建包配置对象</span></span>
|
||
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;"> PackageConfig</span><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;"> packageConfig</span><span style="--shiki-light:#D73A49;--shiki-dark:#F47067;"> =</span><span style="--shiki-light:#D73A49;--shiki-dark:#F47067;"> new</span><span style="--shiki-light:#6F42C1;--shiki-dark:#DCBDFB;"> PackageConfig</span><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;">();</span></span>
|
||
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#768390;"> // 指定父包名</span></span>
|
||
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;"> packageConfig.</span><span style="--shiki-light:#6F42C1;--shiki-dark:#DCBDFB;">setParent</span><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;">(</span><span style="--shiki-light:#032F62;--shiki-dark:#96D0FF;">"com.example"</span><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;">);</span></span>
|
||
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#768390;"> // 指定父包下模块名，例如：用户模块user、角色模块role...</span></span>
|
||
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#768390;"> // 如果拆分输入模块，则每个模块有自己的全套controller、service、dao...</span></span>
|
||
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;"> packageConfig.</span><span style="--shiki-light:#6F42C1;--shiki-dark:#DCBDFB;">setModuleName</span><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;">(</span><span style="--shiki-light:#6F42C1;--shiki-dark:#DCBDFB;">scanner</span><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;">(</span><span style="--shiki-light:#032F62;--shiki-dark:#96D0FF;">"模块名"</span><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;">));</span></span>
|
||
<span class="line"></span>
|
||
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#768390;"> // 指定包名配置</span></span>
|
||
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;"> generator.</span><span style="--shiki-light:#6F42C1;--shiki-dark:#DCBDFB;">setPackageInfo</span><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;">(packageConfig);</span></span>
|
||
<span class="line"></span>
|
||
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#768390;"> // 4.指定数据源配置</span></span>
|
||
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#768390;"> // 创建数据源配置对象</span></span>
|
||
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;"> DataSourceConfig</span><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;"> dataSourceConfig</span><span style="--shiki-light:#D73A49;--shiki-dark:#F47067;"> =</span><span style="--shiki-light:#D73A49;--shiki-dark:#F47067;"> new</span><span style="--shiki-light:#6F42C1;--shiki-dark:#DCBDFB;"> DataSourceConfig</span><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;">();</span></span>
|
||
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#768390;"> // 指定数据源信息</span></span>
|
||
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;"> dataSourceConfig.</span><span style="--shiki-light:#6F42C1;--shiki-dark:#DCBDFB;">setUrl</span><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;">(</span><span style="--shiki-light:#032F62;--shiki-dark:#96D0FF;">"jdbc:mysql://localhost:3306/mybatisplus_demodb?serverTimezone=Asia/Shanghai&useUnicode=true&useSSL=false&characterEncoding=utf8"</span><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;">);</span></span>
|
||
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;"> dataSourceConfig.</span><span style="--shiki-light:#6F42C1;--shiki-dark:#DCBDFB;">setDriverName</span><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;">(</span><span style="--shiki-light:#032F62;--shiki-dark:#96D0FF;">"com.mysql.cj.jdbc.Driver"</span><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;">);</span></span>
|
||
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;"> dataSourceConfig.</span><span style="--shiki-light:#6F42C1;--shiki-dark:#DCBDFB;">setUsername</span><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;">(</span><span style="--shiki-light:#032F62;--shiki-dark:#96D0FF;">"root"</span><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;">);</span></span>
|
||
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;"> dataSourceConfig.</span><span style="--shiki-light:#6F42C1;--shiki-dark:#DCBDFB;">setPassword</span><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;">(</span><span style="--shiki-light:#032F62;--shiki-dark:#96D0FF;">"root"</span><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;">);</span></span>
|
||
<span class="line"></span>
|
||
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#768390;"> // 指定数据源配置</span></span>
|
||
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;"> generator.</span><span style="--shiki-light:#6F42C1;--shiki-dark:#DCBDFB;">setDataSource</span><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;">(dataSourceConfig);</span></span>
|
||
<span class="line"></span>
|
||
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#768390;"> // 5.指定策略配置</span></span>
|
||
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#768390;"> // 创建策略配置对象</span></span>
|
||
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;"> StrategyConfig</span><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;"> strategyConfig</span><span style="--shiki-light:#D73A49;--shiki-dark:#F47067;"> =</span><span style="--shiki-light:#D73A49;--shiki-dark:#F47067;"> new</span><span style="--shiki-light:#6F42C1;--shiki-dark:#DCBDFB;"> StrategyConfig</span><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;">();</span></span>
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<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#768390;"> // 指定数据库表映射到实体的命名策略</span></span>
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||
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#768390;"> // 下划线转驼峰命名：underline_to_camel</span></span>
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||
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#768390;"> // 不做任何改变，原样输出：no_change</span></span>
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||
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;"> strategyConfig.</span><span style="--shiki-light:#6F42C1;--shiki-dark:#DCBDFB;">setNaming</span><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;">(NamingStrategy.underline_to_camel);</span></span>
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||
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#768390;"> // 指定数据库表字段映射到实体的命名策略</span></span>
|
||
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;"> strategyConfig.</span><span style="--shiki-light:#6F42C1;--shiki-dark:#DCBDFB;">setColumnNaming</span><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;">(NamingStrategy.underline_to_camel);</span></span>
|
||
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#768390;"> // 指定实体类是否采用 lombok 注解</span></span>
|
||
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;"> strategyConfig.</span><span style="--shiki-light:#6F42C1;--shiki-dark:#DCBDFB;">setEntityLombokModel</span><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;">(</span><span style="--shiki-light:#005CC5;--shiki-dark:#6CB6FF;">true</span><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;">);</span></span>
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||
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#768390;"> // 指定生成的Controller类是否采用@RestController注解</span></span>
|
||
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#768390;"> // 默认false：@Controller -> true：@RestController</span></span>
|
||
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;"> strategyConfig.</span><span style="--shiki-light:#6F42C1;--shiki-dark:#DCBDFB;">setRestControllerStyle</span><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;">(</span><span style="--shiki-light:#005CC5;--shiki-dark:#6CB6FF;">true</span><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;">);</span></span>
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||
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#768390;"> // 指定需要包含的表名，允许正则表达式（与exclude二选一配置）</span></span>
|
||
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;"> strategyConfig.</span><span style="--shiki-light:#6F42C1;--shiki-dark:#DCBDFB;">setInclude</span><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;">(</span><span style="--shiki-light:#6F42C1;--shiki-dark:#DCBDFB;">scanner</span><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;">(</span><span style="--shiki-light:#032F62;--shiki-dark:#96D0FF;">"表名，多个英文逗号分割"</span><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;">).</span><span style="--shiki-light:#6F42C1;--shiki-dark:#DCBDFB;">split</span><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;">(</span><span style="--shiki-light:#032F62;--shiki-dark:#96D0FF;">","</span><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;">));</span></span>
|
||
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#768390;"> // 指定要去除的表前缀</span></span>
|
||
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#768390;"> // 如果表是按模块划分，例如：系统模块的用户表是 sys_user，那么要去除的表前缀就是 sys_</span></span>
|
||
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;"> strategyConfig.</span><span style="--shiki-light:#6F42C1;--shiki-dark:#DCBDFB;">setTablePrefix</span><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;">(packageConfig.</span><span style="--shiki-light:#6F42C1;--shiki-dark:#DCBDFB;">getModuleName</span><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;">() </span><span style="--shiki-light:#D73A49;--shiki-dark:#F47067;">+</span><span style="--shiki-light:#032F62;--shiki-dark:#96D0FF;"> "_"</span><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;">);</span></span>
|
||
<span class="line"></span>
|
||
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#768390;"> // 指定策略配置</span></span>
|
||
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;"> generator.</span><span style="--shiki-light:#6F42C1;--shiki-dark:#DCBDFB;">setStrategy</span><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;">(strategyConfig);</span></span>
|
||
<span class="line"></span>
|
||
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#768390;"> // 执行生成</span></span>
|
||
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;"> generator.</span><span style="--shiki-light:#6F42C1;--shiki-dark:#DCBDFB;">execute</span><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;">();</span></span>
|
||
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;"> }</span></span>
|
||
<span class="line"></span>
|
||
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;">}</span></span></code></pre></div><div class="info custom-block"><p class="custom-block-title">笔者说</p><p>对于技术的学习，笔者一贯遵循的步骤是：先用最最简单的 demo 让它跑起来，然后学学它的最最常用 API 和 配置让自己能用起来，最后熟练使用的基础上，在空闲时尝试阅读它的源码让自己能够洞彻它的运行机制，部分问题出现的原因，同时借鉴这些技术实现来提升自己的代码高度。</p><p>所以在笔者的文章中，前期基本都是小白文，仅仅穿插很少量的源码研究。当然等小白文更新多了，你们还依然喜欢，后期会不定时专门对部分技术的源码进行解析。</p></div>`,59);function v(s,q,_,S,P,M){const t=p,h=e("ClientOnly");return n(),r("div",null,[f,g(h,null,{default:d(()=>{var i,a;return[(((i=s.$frontmatter)==null?void 0:i.aside)??!0)&&(((a=s.$frontmatter)==null?void 0:a.showArticleMetadata)??!0)?(n(),D(t,{key:0,article:s.$frontmatter},null,8,["article"])):C("",!0)]}),_:1}),b])}const I=k(m,[["render",v]]);export{w as __pageData,I as default};
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