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display: inline-block;">1</div>MySQL安装与配置</p><!--]--></a><!----></div><!----></div><!--]--></div></section></div><div class="group" data-v-802ad7d8><section class="VPSidebarItem level-0 collapsible has-active" data-v-802ad7d8 data-v-95d837d1><div class="item" role="button" tabindex="0" data-v-95d837d1><div class="indicator" data-v-95d837d1></div><h2 class="text" data-v-95d837d1>附录 (2篇)</h2><div class="caret" role="button" aria-label="toggle section" tabindex="0" data-v-95d837d1><svg xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" viewbox="0 0 24 24" class="caret-icon" data-v-95d837d1><path d="M9,19c-0.3,0-0.5-0.1-0.7-0.3c-0.4-0.4-0.4-1,0-1.4l5.3-5.3L8.3,6.7c-0.4-0.4-0.4-1,0-1.4s1-0.4,1.4,0l6,6c0.4,0.4,0.4,1,0,1.4l-6,6C9.5,18.9,9.3,19,9,19z"></path></svg></div></div><div class="items" data-v-95d837d1><!--[--><div class="VPSidebarItem level-1 is-link" data-v-95d837d1 data-v-95d837d1><div class="item" data-v-95d837d1><div class="indicator" data-v-95d837d1></div><a class="VPLink link link" href="/courses/mysql/03-%E9%99%84%E5%BD%95/01-CentOS%E5%AE%89%E8%A3%85MySQL" data-v-95d837d1><!--[--><p class="text" data-v-95d837d1><div class="text-color-red mr-[6px]" style="font-weight: 550; display: inline-block;">1</div>CentOS 8.2 安装 MySQL 5.7.39</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-95d837d1 data-v-95d837d1><div class="item" data-v-95d837d1><div class="indicator" data-v-95d837d1></div><a class="VPLink link link" href="/courses/mysql/03-%E9%99%84%E5%BD%95/02-Docker%E5%AE%89%E8%A3%85MySQL" data-v-95d837d1><!--[--><p class="text" data-v-95d837d1><div class="text-color-orange mr-[6px]" style="font-weight: 550; display: inline-block;">2</div>Docker 安装 MySQL 详细步骤</p><!--]--></a><!----></div><!----></div><!--]--></div></section></div><!--]--><!--[--><!--]--></nav></aside><div class="VPContent has-sidebar" id="VPContent" data-v-03322d68 data-v-2c336b25><div class="VPDoc has-sidebar has-aside" data-v-2c336b25 data-v-53ed897c><!--[--><!--]--><div class="container" data-v-53ed897c><div class="aside" data-v-53ed897c><div class="aside-curtain" data-v-53ed897c></div><div class="aside-container" data-v-53ed897c><div class="aside-content" data-v-53ed897c><div class="VPDocAside" data-v-53ed897c data-v-3d450548><!--[--><!--]--><!--[--><!--]--><div class="VPDocAsideOutline" role="navigation" data-v-3d450548 data-v-70b38f01><div class="content" data-v-70b38f01><div class="outline-marker" data-v-70b38f01></div><div class="outline-title" role="heading" aria-level="2" data-v-70b38f01>目录</div><nav aria-labelledby="doc-outline-aria-label" data-v-70b38f01><span class="visually-hidden" id="doc-outline-aria-label" data-v-70b38f01> Table of Contents for current page </span><ul class="root" data-v-70b38f01 data-v-e10534d6><!--[--><!--]--></ul></nav></div></div><!--[--><!--]--><div class="spacer" data-v-3d450548></div><!--[--><!--]--><!----><!--[--><!--]--><!--[--><!--]--></div></div></div></div><div class="content" data-v-53ed897c><div class="content-container" data-v-53ed897c><!--[--><!--]--><!----><main class="main" data-v-53ed897c><div style="position:relative;" class="vp-doc _courses_mysql_03-%E9%99%84%E5%BD%95_01-CentOS%E5%AE%89%E8%A3%85MySQL" data-v-53ed897c><div><h1 id="centos-8-2-安装-mysql-5-7-39" tabindex="-1">CentOS 8.2 安装 MySQL 5.7.39 <a class="header-anchor" href="#centos-8-2-安装-mysql-5-7-39" aria-label="Permalink to "CentOS 8.2 安装 MySQL 5.7.39""></a></h1><!----><h2 id="检查系统是否自带mysql" tabindex="-1">检查系统是否自带MySQL <a class="header-anchor" href="#检查系统是否自带mysql" aria-label="Permalink to "检查系统是否自带MySQL""></a></h2><div class="warning custom-block"><p class="custom-block-title">笔者说</p><p>检查系统中是否已经安装了 MySQL 或 MariaDB ，如果已经安装了，那就必须提前卸载掉它们，否则它们占用的端口号、服务名或是一些其他配置很可能会干扰到后续我们要安装的 MySQL 版本。</p><p>以前笔者就遇到过几次由这个情况引发的问题，要么是 MySQL 无法安装成功，要么是 MySQL 安装成功后输入正确密码却登录不进去。</p></div><div class="language-shell vp-adaptive-theme"><button title="Copy Code" class="copy"></button><span class="lang">shell</span><pre class="shiki shiki-themes github-light github-dark-dimmed vp-code"><code><span class="line"><span style="--shiki-light:#6F42C1;--shiki-dark:#F69D50;">rpm</span><span style="--shiki-light:#005CC5;--shiki-dark:#6CB6FF;"> -qa</span><span style="--shiki-light:#D73A49;--shiki-dark:#F47067;"> |</span><span style="--shiki-light:#6F42C1;--shiki-dark:#F69D50;"> grep</span><span style="--shiki-light:#032F62;--shiki-dark:#96D0FF;"> mysql</span></span>
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<span class="line"><span style="--shiki-light:#6F42C1;--shiki-dark:#F69D50;">rpm</span><span style="--shiki-light:#005CC5;--shiki-dark:#6CB6FF;"> -qa</span><span style="--shiki-light:#D73A49;--shiki-dark:#F47067;"> |</span><span style="--shiki-light:#6F42C1;--shiki-dark:#F69D50;"> grep</span><span style="--shiki-light:#032F62;--shiki-dark:#96D0FF;"> mariadb</span></span>
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<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#768390;"># 如果上方两条命令查询出了内容，就把查出的软件卸载掉</span></span>
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<span class="line"><span style="--shiki-light:#6F42C1;--shiki-dark:#F69D50;">rpm</span><span style="--shiki-light:#005CC5;--shiki-dark:#6CB6FF;"> -e</span><span style="--shiki-light:#005CC5;--shiki-dark:#6CB6FF;"> --nodeps</span><span style="--shiki-light:#032F62;--shiki-dark:#96D0FF;"> 软件名</span></span></code></pre></div><h2 id="安装依赖" tabindex="-1">安装依赖 <a class="header-anchor" href="#安装依赖" aria-label="Permalink to "安装依赖""></a></h2><div class="warning custom-block"><p class="custom-block-title">笔者说</p><p>和在 Windows 系统中一样，Linux 系统中安装程序也需要准备好所需的运行库。</p><p>不确认安装好它们，那在安装 MySQL 时就会出现这样那样的依赖报错，像下面这段报错就是由于没有安装好 <code>libaio</code> 库引起的。</p><blockquote><p>/bin/mysqld: error while loading shared libraries: libaio.so.1: cannot open shared object file: No such file or directory</p></blockquote></div><div class="language-shell vp-adaptive-theme"><button title="Copy Code" class="copy"></button><span class="lang">shell</span><pre class="shiki shiki-themes github-light github-dark-dimmed vp-code"><code><span class="line"><span style="--shiki-light:#6F42C1;--shiki-dark:#F69D50;">yum</span><span style="--shiki-light:#005CC5;--shiki-dark:#6CB6FF;"> -y</span><span style="--shiki-light:#032F62;--shiki-dark:#96D0FF;"> install</span><span style="--shiki-light:#032F62;--shiki-dark:#96D0FF;"> numactl</span></span>
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<span class="line"><span style="--shiki-light:#6F42C1;--shiki-dark:#F69D50;">yum</span><span style="--shiki-light:#005CC5;--shiki-dark:#6CB6FF;"> -y</span><span style="--shiki-light:#032F62;--shiki-dark:#96D0FF;"> install</span><span style="--shiki-light:#032F62;--shiki-dark:#96D0FF;"> libncurses</span><span style="--shiki-light:#005CC5;--shiki-dark:#6CB6FF;">*</span></span>
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<span class="line"><span style="--shiki-light:#6F42C1;--shiki-dark:#F69D50;">yum</span><span style="--shiki-light:#005CC5;--shiki-dark:#6CB6FF;"> -y</span><span style="--shiki-light:#032F62;--shiki-dark:#96D0FF;"> install</span><span style="--shiki-light:#032F62;--shiki-dark:#96D0FF;"> libaio</span></span></code></pre></div><h2 id="下载并上传安装包" tabindex="-1">下载并上传安装包 <a class="header-anchor" href="#下载并上传安装包" aria-label="Permalink to "下载并上传安装包""></a></h2><p>可前往 <a href="https://downloads.mysql.com/archives/community" target="_blank" rel="noreferrer">官网</a> 下载 MySQL Linux 安装包然后上传到服务器。</p><p><img src="/assets/202210222130166.WzQ8w02r.png" alt="202210222130166"></p><p>也可以直接在服务器内下载。</p><div class="language-shell vp-adaptive-theme"><button title="Copy Code" class="copy"></button><span class="lang">shell</span><pre class="shiki shiki-themes github-light github-dark-dimmed vp-code"><code><span class="line"><span style="--shiki-light:#6F42C1;--shiki-dark:#F69D50;">wget</span><span style="--shiki-light:#032F62;--shiki-dark:#96D0FF;"> https://cdn.mysql.com/archives/mysql-5.7/mysql-5.7.39-linux-glibc2.12-x86_64.tar.gz</span></span></code></pre></div><h2 id="解压安装包" tabindex="-1">解压安装包 <a class="header-anchor" href="#解压安装包" aria-label="Permalink to "解压安装包""></a></h2><div class="warning custom-block"><p class="custom-block-title">笔者说</p><p>除去一些固定的东西，一定要记得根据你实际的情况调整好目录位置或命名。</p></div><div class="language-shell vp-adaptive-theme"><button title="Copy Code" class="copy"></button><span class="lang">shell</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;"># 解压安装包到指定目录（如指定目录不存在则需要先提前用 mkdir 创建）</span></span>
|
||
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#768390;"># 下方 /opt/disk 是服务器的一块数据盘挂载目录</span></span>
|
||
<span class="line"><span style="--shiki-light:#6F42C1;--shiki-dark:#F69D50;">tar</span><span style="--shiki-light:#005CC5;--shiki-dark:#6CB6FF;"> -zxvf</span><span style="--shiki-light:#032F62;--shiki-dark:#96D0FF;"> mysql-5.7.39-linux-glibc2.12-x86_64.tar.gz</span><span style="--shiki-light:#005CC5;--shiki-dark:#6CB6FF;"> -C</span><span style="--shiki-light:#032F62;--shiki-dark:#96D0FF;"> /opt/disk</span></span>
|
||
<span class="line"></span>
|
||
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#768390;"># 重命名目录</span></span>
|
||
<span class="line"><span style="--shiki-light:#005CC5;--shiki-dark:#6CB6FF;">cd</span><span style="--shiki-light:#032F62;--shiki-dark:#96D0FF;"> /opt/disk</span></span>
|
||
<span class="line"><span style="--shiki-light:#6F42C1;--shiki-dark:#F69D50;">mv</span><span style="--shiki-light:#032F62;--shiki-dark:#96D0FF;"> mysql-5.7.39-linux-glibc2.12-x86_64</span><span style="--shiki-light:#032F62;--shiki-dark:#96D0FF;"> mysql</span></span>
|
||
<span class="line"></span>
|
||
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#768390;"># 创建 MySQL 数据存储目录</span></span>
|
||
<span class="line"><span style="--shiki-light:#005CC5;--shiki-dark:#6CB6FF;">cd</span><span style="--shiki-light:#032F62;--shiki-dark:#96D0FF;"> mysql</span></span>
|
||
<span class="line"><span style="--shiki-light:#6F42C1;--shiki-dark:#F69D50;">mkdir</span><span style="--shiki-light:#032F62;--shiki-dark:#96D0FF;"> data</span></span></code></pre></div><h2 id="创建mysql用户组和mysql用户" tabindex="-1">创建mysql用户组和mysql用户 <a class="header-anchor" href="#创建mysql用户组和mysql用户" aria-label="Permalink to "创建mysql用户组和mysql用户""></a></h2><div class="language-shell vp-adaptive-theme"><button title="Copy Code" class="copy"></button><span class="lang">shell</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 mysql 用户组</span></span>
|
||
<span class="line"><span style="--shiki-light:#6F42C1;--shiki-dark:#F69D50;">groupadd</span><span style="--shiki-light:#032F62;--shiki-dark:#96D0FF;"> mysql</span></span>
|
||
<span class="line"></span>
|
||
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#768390;"># 创建 mysql 用户</span></span>
|
||
<span class="line"><span style="--shiki-light:#6F42C1;--shiki-dark:#F69D50;">useradd</span><span style="--shiki-light:#005CC5;--shiki-dark:#6CB6FF;"> -r</span><span style="--shiki-light:#005CC5;--shiki-dark:#6CB6FF;"> -g</span><span style="--shiki-light:#032F62;--shiki-dark:#96D0FF;"> mysql</span><span style="--shiki-light:#032F62;--shiki-dark:#96D0FF;"> mysql</span></span>
|
||
<span class="line"></span>
|
||
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#768390;"># 将 MySQL 安装目录授权给 mysql 用户组的 mysql 用户</span></span>
|
||
<span class="line"><span style="--shiki-light:#6F42C1;--shiki-dark:#F69D50;">chown</span><span style="--shiki-light:#005CC5;--shiki-dark:#6CB6FF;"> -R</span><span style="--shiki-light:#032F62;--shiki-dark:#96D0FF;"> mysql:mysql</span><span style="--shiki-light:#032F62;--shiki-dark:#96D0FF;"> ./</span></span></code></pre></div><h2 id="创建配置文件" tabindex="-1">创建配置文件 <a class="header-anchor" href="#创建配置文件" aria-label="Permalink to "创建配置文件""></a></h2><p>创建 my_default.cnf 配置文件。</p><div class="language-shell vp-adaptive-theme"><button title="Copy Code" class="copy"></button><span class="lang">shell</span><pre class="shiki shiki-themes github-light github-dark-dimmed vp-code"><code><span class="line"><span style="--shiki-light:#6F42C1;--shiki-dark:#F69D50;">vim</span><span style="--shiki-light:#032F62;--shiki-dark:#96D0FF;"> /opt/disk/mysql/support-files/my_default.cnf</span></span></code></pre></div><p>将下方内容插入到配置文件中，保存并退出编辑。</p><div class="tip custom-block"><p class="custom-block-title">笔者说</p><p>下方的配置中，指定了 MySQL 安装目录、MySQL 数据存储目录、MySQL 服务占用端口、MySQL 默认字符集、MySQL 日志文件位置、MySQL 进程文件位置等。</p><p><strong>一定记得根据你实际的情况调整好。</strong></p></div><div class="language-shell vp-adaptive-theme"><button title="Copy Code" class="copy"></button><span class="lang">shell</span><pre class="shiki shiki-themes github-light github-dark-dimmed vp-code"><code><span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;">[mysqld]</span></span>
|
||
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;">sql_mode</span><span style="--shiki-light:#D73A49;--shiki-dark:#F47067;">=</span><span style="--shiki-light:#032F62;--shiki-dark:#96D0FF;">NO_ENGINE_SUBSTITUTION,STRICT_TRANS_TABLES</span><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;"> </span></span>
|
||
<span class="line"></span>
|
||
<span class="line"><span style="--shiki-light:#6F42C1;--shiki-dark:#F69D50;">basedir</span><span style="--shiki-light:#032F62;--shiki-dark:#96D0FF;"> =</span><span style="--shiki-light:#032F62;--shiki-dark:#96D0FF;"> /opt/disk/mysql</span></span>
|
||
<span class="line"><span style="--shiki-light:#6F42C1;--shiki-dark:#F69D50;">datadir</span><span style="--shiki-light:#032F62;--shiki-dark:#96D0FF;"> =</span><span style="--shiki-light:#032F62;--shiki-dark:#96D0FF;"> /opt/disk/mysql/data</span></span>
|
||
<span class="line"><span style="--shiki-light:#6F42C1;--shiki-dark:#F69D50;">port</span><span style="--shiki-light:#032F62;--shiki-dark:#96D0FF;"> =</span><span style="--shiki-light:#005CC5;--shiki-dark:#6CB6FF;"> 3306</span></span>
|
||
<span class="line"><span style="--shiki-light:#6F42C1;--shiki-dark:#F69D50;">socket</span><span style="--shiki-light:#032F62;--shiki-dark:#96D0FF;"> =</span><span style="--shiki-light:#032F62;--shiki-dark:#96D0FF;"> /tmp/mysql.sock</span></span>
|
||
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;">character-set-server</span><span style="--shiki-light:#D73A49;--shiki-dark:#F47067;">=</span><span style="--shiki-light:#032F62;--shiki-dark:#96D0FF;">utf8</span></span>
|
||
<span class="line"></span>
|
||
<span class="line"><span style="--shiki-light:#6F42C1;--shiki-dark:#F69D50;">log-error</span><span style="--shiki-light:#032F62;--shiki-dark:#96D0FF;"> =</span><span style="--shiki-light:#032F62;--shiki-dark:#96D0FF;"> /opt/disk/mysql/data/mysqld.log</span></span>
|
||
<span class="line"><span style="--shiki-light:#6F42C1;--shiki-dark:#F69D50;">pid-file</span><span style="--shiki-light:#032F62;--shiki-dark:#96D0FF;"> =</span><span style="--shiki-light:#032F62;--shiki-dark:#96D0FF;"> /opt/disk/mysql/data/mysqld.pid</span></span></code></pre></div><p>拷贝一份配置文件到 /etc 目录下，命名为 <code>my.cnf</code>。</p><div class="language-shell vp-adaptive-theme"><button title="Copy Code" class="copy"></button><span class="lang">shell</span><pre class="shiki shiki-themes github-light github-dark-dimmed vp-code"><code><span class="line"><span style="--shiki-light:#6F42C1;--shiki-dark:#F69D50;">cp</span><span style="--shiki-light:#032F62;--shiki-dark:#96D0FF;"> support-files/my_default.cnf</span><span style="--shiki-light:#032F62;--shiki-dark:#96D0FF;"> /etc/my.cnf</span></span></code></pre></div><h2 id="安装并启动mysql服务" tabindex="-1">安装并启动MySQL服务 <a class="header-anchor" href="#安装并启动mysql服务" aria-label="Permalink to "安装并启动MySQL服务""></a></h2><p>使用 <code>mysqld</code> 命令来安装 MySQL 服务，并指定好用户名、MySQL 安装目录、MySQL 数据存储目录。</p><div class="language-shell vp-adaptive-theme"><button title="Copy Code" class="copy"></button><span class="lang">shell</span><pre class="shiki shiki-themes github-light github-dark-dimmed vp-code"><code><span class="line"><span style="--shiki-light:#6F42C1;--shiki-dark:#F69D50;">bin/mysqld</span><span style="--shiki-light:#005CC5;--shiki-dark:#6CB6FF;"> --initialize</span><span style="--shiki-light:#005CC5;--shiki-dark:#6CB6FF;"> --user=mysql</span><span style="--shiki-light:#005CC5;--shiki-dark:#6CB6FF;"> --basedir=/opt/disk/mysql/</span><span style="--shiki-light:#005CC5;--shiki-dark:#6CB6FF;"> --datadir=/opt/disk/mysql/data/</span></span></code></pre></div><p>拷贝一份 MySQL 服务脚本到 <code>/etc/init.d</code> 目录下，命名为 <code>mysql</code>。</p><div class="language-shell vp-adaptive-theme"><button title="Copy Code" class="copy"></button><span class="lang">shell</span><pre class="shiki shiki-themes github-light github-dark-dimmed vp-code"><code><span class="line"><span style="--shiki-light:#6F42C1;--shiki-dark:#F69D50;">cp</span><span style="--shiki-light:#032F62;--shiki-dark:#96D0FF;"> support-files/mysql.server</span><span style="--shiki-light:#032F62;--shiki-dark:#96D0FF;"> /etc/init.d/mysql</span></span></code></pre></div><p>启动 MySQL 服务。</p><div class="language-shell vp-adaptive-theme"><button title="Copy Code" class="copy"></button><span class="lang">shell</span><pre class="shiki shiki-themes github-light github-dark-dimmed vp-code"><code><span class="line"><span style="--shiki-light:#6F42C1;--shiki-dark:#F69D50;">systemctl</span><span style="--shiki-light:#032F62;--shiki-dark:#96D0FF;"> start</span><span style="--shiki-light:#032F62;--shiki-dark:#96D0FF;"> mysql</span></span></code></pre></div><p>配置 MySQL 开机自启动。</p><div class="language-shell vp-adaptive-theme"><button title="Copy Code" class="copy"></button><span class="lang">shell</span><pre class="shiki shiki-themes github-light github-dark-dimmed vp-code"><code><span class="line"><span style="--shiki-light:#6F42C1;--shiki-dark:#F69D50;">systemctl</span><span style="--shiki-light:#032F62;--shiki-dark:#96D0FF;"> enable</span><span style="--shiki-light:#032F62;--shiki-dark:#96D0FF;"> mysql</span></span></code></pre></div><p>到此，MySQL 服务就安装完成了。但别着急，还需要做些配置才能真正用起来。</p><h2 id="设置环境变量" tabindex="-1">设置环境变量 <a class="header-anchor" href="#设置环境变量" aria-label="Permalink to "设置环境变量""></a></h2><div class="tip custom-block"><p class="custom-block-title">笔者说</p><p>配置好环境变量，我们才能方便的在任何目录下使用 MySQL 的命令。</p></div><div class="language-shell vp-adaptive-theme"><button title="Copy Code" class="copy"></button><span class="lang">shell</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;"># 1、打开 profile 文件</span></span>
|
||
<span class="line"><span style="--shiki-light:#6F42C1;--shiki-dark:#F69D50;">vim</span><span style="--shiki-light:#032F62;--shiki-dark:#96D0FF;"> /etc/profile</span></span>
|
||
<span class="line"></span>
|
||
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#768390;"># 2、在其中插入环境变量配置</span></span>
|
||
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;">MYSQL_HOME</span><span style="--shiki-light:#D73A49;--shiki-dark:#F47067;">=</span><span style="--shiki-light:#032F62;--shiki-dark:#96D0FF;">/opt/disk/mysql</span></span>
|
||
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;">PATH</span><span style="--shiki-light:#D73A49;--shiki-dark:#F47067;">=</span><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;">$MYSQL_HOME</span><span style="--shiki-light:#032F62;--shiki-dark:#96D0FF;">/bin:</span><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;">$PATH</span></span>
|
||
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F47067;">export</span><span style="--shiki-light:#032F62;--shiki-dark:#96D0FF;"> MYSQL_HOME</span><span style="--shiki-light:#032F62;--shiki-dark:#96D0FF;"> PATH</span></span>
|
||
<span class="line"></span>
|
||
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#768390;"># 3、重新加载 profile 文件，使最新配置生效</span></span>
|
||
<span class="line"><span style="--shiki-light:#005CC5;--shiki-dark:#6CB6FF;">source</span><span style="--shiki-light:#032F62;--shiki-dark:#96D0FF;"> /etc/profile</span></span></code></pre></div><h2 id="登录并修改密码" tabindex="-1">登录并修改密码 <a class="header-anchor" href="#登录并修改密码" aria-label="Permalink to "登录并修改密码""></a></h2><p>第一次登录时，首先从日志文件中找到随机生成的密码。</p><div class="language-shell vp-adaptive-theme"><button title="Copy Code" class="copy"></button><span class="lang">shell</span><pre class="shiki shiki-themes github-light github-dark-dimmed vp-code"><code><span class="line"><span style="--shiki-light:#6F42C1;--shiki-dark:#F69D50;">cat</span><span style="--shiki-light:#032F62;--shiki-dark:#96D0FF;"> /opt/disk/mysql/data/mysqld.log</span></span></code></pre></div><p>在日志文件中找到类似于下方输出的位置，其中 <code>8QE2NEqhB:ks</code> 就是密码。</p><div class="language- vp-adaptive-theme"><button title="Copy Code" class="copy"></button><span class="lang"></span><pre class="shiki shiki-themes github-light github-dark-dimmed vp-code"><code><span class="line"><span>[Note] A temporary password is generated for root@localhost: 8QE2NEqhB:ks</span></span></code></pre></div><p>登录到 MySQL 服务端。</p><div class="warning custom-block"><p class="custom-block-title">笔者说</p><p>有些时候随机生成的密码包含特殊符号，例如：<code>&</code>、<code>/</code>、<code>.</code>（你没看错，有时候最后有个 <code>.</code> 可千万别当作是句子结尾。</p><p>这种密码你在登录的时候，记得用 <code>'</code> 单引号给它引起来。</p><p>例如：<code>mysql -uroot -p'7AB5CDadE&'</code></p></div><div class="language-shell vp-adaptive-theme"><button title="Copy Code" class="copy"></button><span class="lang">shell</span><pre class="shiki shiki-themes github-light github-dark-dimmed vp-code"><code><span class="line"><span style="--shiki-light:#6F42C1;--shiki-dark:#F69D50;">mysql</span><span style="--shiki-light:#005CC5;--shiki-dark:#6CB6FF;"> -uroot</span><span style="--shiki-light:#005CC5;--shiki-dark:#6CB6FF;"> -p刚才从日志中找到的随机密码</span></span></code></pre></div><p>修改密码。</p><div class="language-shell vp-adaptive-theme"><button title="Copy Code" class="copy"></button><span class="lang">shell</span><pre class="shiki shiki-themes github-light github-dark-dimmed vp-code"><code><span class="line"><span style="--shiki-light:#005CC5;--shiki-dark:#6CB6FF;">set</span><span style="--shiki-light:#032F62;--shiki-dark:#96D0FF;"> password</span><span style="--shiki-light:#032F62;--shiki-dark:#96D0FF;"> =</span><span style="--shiki-light:#032F62;--shiki-dark:#96D0FF;"> password</span><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;">(</span><span style="--shiki-light:#6F42C1;--shiki-dark:#F69D50;">'新密码'</span><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;">);</span></span></code></pre></div><h2 id="创建用户并授权" tabindex="-1">创建用户并授权 <a class="header-anchor" href="#创建用户并授权" aria-label="Permalink to "创建用户并授权""></a></h2><p>这一步就要根据你的实际个人需要来操作了。</p><div class="language-shell vp-adaptive-theme"><button title="Copy Code" class="copy"></button><span class="lang">shell</span><pre class="shiki shiki-themes github-light github-dark-dimmed vp-code"><code><span class="line"><span style="--shiki-light:#6F42C1;--shiki-dark:#F69D50;">grant</span><span style="--shiki-light:#032F62;--shiki-dark:#96D0FF;"> all</span><span style="--shiki-light:#032F62;--shiki-dark:#96D0FF;"> on</span><span style="--shiki-light:#005CC5;--shiki-dark:#6CB6FF;"> *</span><span style="--shiki-light:#032F62;--shiki-dark:#96D0FF;">.</span><span style="--shiki-light:#005CC5;--shiki-dark:#6CB6FF;">*</span><span style="--shiki-light:#032F62;--shiki-dark:#96D0FF;"> to</span><span style="--shiki-light:#032F62;--shiki-dark:#96D0FF;"> root@'%'</span><span style="--shiki-light:#032F62;--shiki-dark:#96D0FF;"> identified</span><span style="--shiki-light:#032F62;--shiki-dark:#96D0FF;"> by</span><span style="--shiki-light:#032F62;--shiki-dark:#96D0FF;"> '你的密码'</span><span style="--shiki-light:#24292E;--shiki-dark:#ADBAC7;">;</span></span></code></pre></div></div></div></main><footer class="VPDocFooter" 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Please install libicu using your package manager and try again\",\"link\":\"/categories/issues/2022/11/06/解决DotNET安装后报错的问题\"},{\"text\":\"<div class=\\\"text-color-yellow mr-[6px]\\\" style=\\\"font-weight: 550; display: inline-block;\\\">3</div>解决 Docker 安装 Prometheus 启动报 permission denied 的问题\",\"link\":\"/categories/issues/2022/11/04/解决Docker安装Prometheus启动报错的问题\"},{\"text\":\"<div class=\\\"text-color-gray mr-[6px]\\\" style=\\\"font-weight: 550; display: inline-block;\\\">4</div>Docker 设置网络代理\",\"link\":\"/categories/issues/2022/10/29/Docker设置网络代理\"},{\"text\":\"<div class=\\\"text-color-gray mr-[6px]\\\" style=\\\"font-weight: 550; display: inline-block;\\\">5</div>解决 CentOS 8 执行 yum install 报 Error: Failed to download metadata for repo 'appstream': Cannot prepare internal mirrorlist: No URLs in mirrorlist 的问题\",\"link\":\"/categories/issues/2022/10/25/解决CentOS8执行yum安装报错\"},{\"text\":\"<div class=\\\"text-color-gray mr-[6px]\\\" style=\\\"font-weight: 550; display: inline-block;\\\">6</div>解决 Windows 桌面部分快捷方式图标变为空白的问题\",\"link\":\"/categories/issues/2022/10/15/解决Windows桌面部分快捷方式图标变为空白的问题\"},{\"text\":\"<div class=\\\"text-color-gray mr-[6px]\\\" style=\\\"font-weight: 550; display: inline-block;\\\">7</div>解决无法重复读取请求体和响应体的问题\",\"link\":\"/categories/issues/2022/09/23/解决无法重复读取请求体和响应体的问题\"},{\"text\":\"<div class=\\\"text-color-gray mr-[6px]\\\" style=\\\"font-weight: 550; display: inline-block;\\\">8</div>Nginx转发请求，报13：Permission denied错误\",\"link\":\"/categories/issues/2022/09/05/Nginx转发请求，报13：Permission denied错误\"},{\"text\":\"<div class=\\\"text-color-gray mr-[6px]\\\" style=\\\"font-weight: 550; display: inline-block;\\\">9</div>SpringBoot项目引入OpenFeign后无法启动\",\"link\":\"/categories/issues/2022/08/31/SpringBoot项目引入OpenFeign后无法启动\"},{\"text\":\"<div class=\\\"text-color-gray mr-[6px]\\\" style=\\\"font-weight: 550; display: inline-block;\\\">10</div>执行Shell脚本，报java: command not found\",\"link\":\"/categories/issues/2022/08/11/执行Shell脚本，报java command not found\"},{\"text\":\"<div class=\\\"text-color-gray mr-[6px]\\\" style=\\\"font-weight: 550; display: inline-block;\\\">11</div>创建一个自身类的静态对象变量，究竟会如何执行？\",\"link\":\"/categories/issues/2022/03/24/创建一个自身类的静态对象变量，究竟会如何执行？\"},{\"text\":\"<div class=\\\"text-color-gray mr-[6px]\\\" style=\\\"font-weight: 550; display: inline-block;\\\">12</div>JavaScript 无法存储 Java Long 类型数据问题\",\"link\":\"/categories/issues/2022/01/26/JavaScript 无法存储 Java Long 类型数据问题\"}],\"collapsed\":false},{\"text\":\"<img class=\\\"chinese-zodiac\\\" style=\\\"position: static; vertical-align: middle; padding-bottom: 3px;\\\" src=\\\"/img/svg/chinese-zodiac/ox.svg\\\" title=\\\"牛年\\\" alt=\\\"生肖\\\">\\n 2021年 (5篇)\",\"items\":[{\"text\":\"<div class=\\\"text-color-red mr-[6px]\\\" style=\\\"font-weight: 550; display: inline-block;\\\">1</div>无法访问 F:\\\\。文件或目录损坏且无法读取。\",\"link\":\"/categories/issues/2021/12/13/无法访问F盘。文件或目录损坏且无法读取\"},{\"text\":\"<div class=\\\"text-color-orange mr-[6px]\\\" style=\\\"font-weight: 550; display: inline-block;\\\">2</div>SQL 注入攻击风险\",\"link\":\"/categories/issues/2021/12/11/SQL 注入攻击风险\"},{\"text\":\"<div class=\\\"text-color-yellow mr-[6px]\\\" style=\\\"font-weight: 550; display: inline-block;\\\">3</div>Command line is too long. Shorten command line for XXX or also for Spring Boot default configuration？\",\"link\":\"/categories/issues/2021/12/10/Command line is too long. Shorten command line for XXX or also for Spring Boot default configuration\"},{\"text\":\"<div class=\\\"text-color-gray mr-[6px]\\\" style=\\\"font-weight: 550; display: inline-block;\\\">4</div>for循环中删除集合元素隐藏的陷阱\",\"link\":\"/categories/issues/2021/12/08/for循环中删除集合元素隐藏的陷阱\"},{\"text\":\"<div class=\\\"text-color-gray mr-[6px]\\\" style=\\\"font-weight: 550; display: inline-block;\\\">5</div>F:\\\\ 上的回收站已损坏。是否清空该驱动器上的\\\"回收站\\\"?\",\"link\":\"/categories/issues/2021/12/01/F盘上的回收站已损坏。是否清空该驱动器上的回收站\"}],\"collapsed\":true}],\"/categories/fragments/\":[{\"text\":\"<svg style=\\\"display: inline-block; vertical-align: middle; padding-bottom: 3px;\\\" viewBox=\\\"0 0 1920 1024\\\" version=\\\"1.1\\\" xmlns=\\\"http://www.w3.org/2000/svg\\\" width=\\\"30\\\" height=\\\"30\\\"><path d=\\\"M367.488 667.904h423.744v47.232H367.488v-47.232zM320.256 204.352h137.28v68.992h-137.28v-68.992zM367.488 754.112h423.744v48H367.488v-48zM693.76 204.352h137.984v68.992H693.76v-68.992zM507.008 204.352h137.28v68.992h-137.28v-68.992z\\\" p-id=\\\"10749\\\" fill=\\\"#d81e06\\\"></path><path d=\\\"M1792.512 0H127.488C57.472 0 0 57.152 0 127.616v768.768C0 966.72 57.088 1024 127.488 1024h1665.088c69.952 0 127.424-57.152 127.424-127.616V127.616C1920 57.216 1862.912 0 1792.512 0z m-528 175.104h446.976v54.016H1494.72l-24 101.248h206.976V689.6h-57.728V384.32h-289.472v308.224h-57.728v-362.24h140.224l20.992-101.248h-169.472v-53.952z m-996.032-11.2h614.272v167.232h-51.008v-17.28H320.256v17.28H268.48V163.904z m678.784 681.728h-744v-43.52h111.744V454.848h229.504v-48.704H221.248v-42.048h323.264v-39.744h54.016v39.744h331.52v41.984h-331.52v48.768h245.248v347.264h103.488v43.52z m203.264-94.528c0 59.52-30.72 89.28-92.224 89.28-25.472 0-46.016-0.512-61.504-1.472-2.496-22.976-6.528-45.248-12.032-66.752 22.976 5.504 46.72 8.256 71.232 8.256 24 0 35.968-11.52 35.968-34.496V247.872H971.2v-54.72h278.976v54.72H1150.4v503.232z m521.216 121.536c-67.008-55.488-137.28-108.032-210.752-157.504-4.992 9.984-10.496 19.008-16.512 27.008-41.472 57.024-113.28 101.504-215.232 133.504-9.472-16.512-21.504-34.496-35.968-54.016 94.528-27.008 161.28-64.512 200.256-112.512 34.496-44.992 51.776-113.024 51.776-204.032V421.12h57.728v82.496c0 62.528-6.72 115.776-20.224 159.744 84.48 54.016 161.472 107.008 230.976 158.976l-42.048 50.304z\\\" p-id=\\\"10750\\\" fill=\\\"#d81e06\\\"></path><path d=\\\"M367.488 495.36h423.744v47.232H367.488V495.36zM367.488 581.632h423.744v47.232H367.488v-47.232z\\\" p-id=\\\"10751\\\" fill=\\\"#d81e06\\\"></path></svg>\\n 我的置顶 (8篇)\",\"items\":[{\"text\":\"<div class=\\\"text-color-red mr-[6px]\\\" style=\\\"font-weight: 550; display: inline-block;\\\">1</div>个人常用快捷键\",\"link\":\"/categories/fragments/2022/10/06/个人常用快捷键\"},{\"text\":\"<div class=\\\"text-color-orange mr-[6px]\\\" style=\\\"font-weight: 550; display: inline-block;\\\">2</div>个人常用 Git 命令\",\"link\":\"/categories/fragments/2022/10/05/个人常用Git命令\"},{\"text\":\"<div class=\\\"text-color-yellow mr-[6px]\\\" style=\\\"font-weight: 550; display: inline-block;\\\">3</div>个人常用 Docker 命令\",\"link\":\"/categories/fragments/2022/10/01/个人常用Docker命令\"},{\"text\":\"<div class=\\\"text-color-gray mr-[6px]\\\" style=\\\"font-weight: 550; display: inline-block;\\\">4</div>个人常用 SQL 函数\",\"link\":\"/categories/fragments/2022/02/16/个人常用SQL函数\"},{\"text\":\"<div class=\\\"text-color-gray mr-[6px]\\\" style=\\\"font-weight: 550; display: inline-block;\\\">5</div>个人常用 Linux 命令\",\"link\":\"/categories/fragments/2019/12/31/个人常用Linux命令\"},{\"text\":\"<div class=\\\"text-color-gray mr-[6px]\\\" style=\\\"font-weight: 550; display: inline-block;\\\">6</div>个人常用 Hutool 工具类\",\"link\":\"/categories/fragments/2019/12/30/个人常用Hutool工具类\"},{\"text\":\"<div class=\\\"text-color-gray mr-[6px]\\\" style=\\\"font-weight: 550; display: inline-block;\\\">7</div>个人常用 Stream 使用技巧\",\"link\":\"/categories/fragments/2019/12/29/个人常用Stream使用技巧\"},{\"text\":\"<div class=\\\"text-color-gray mr-[6px]\\\" style=\\\"font-weight: 550; display: inline-block;\\\">8</div>个人 SQL 优化技巧\",\"link\":\"/categories/fragments/2019/12/28/个人SQL优化技巧\"}],\"collapsed\":false},{\"text\":\"<img class=\\\"chinese-zodiac\\\" style=\\\"position: static; vertical-align: middle; padding-bottom: 3px;\\\" src=\\\"/img/svg/chinese-zodiac/rabbit.svg\\\" title=\\\"兔年\\\" alt=\\\"生肖\\\">\\n 2023年 (2篇)\",\"items\":[{\"text\":\"<div class=\\\"text-color-red mr-[6px]\\\" style=\\\"font-weight: 550; display: inline-block;\\\">1</div>一文详解限流接口实现\",\"link\":\"/categories/fragments/2023/12/21/一文详解限流接口实现\"},{\"text\":\"<div class=\\\"text-color-orange mr-[6px]\\\" style=\\\"font-weight: 550; display: inline-block;\\\">2</div>阿里巴巴的Code Review方法论与实践总结\",\"link\":\"/categories/fragments/2023/01/06/CodeReview方法论与实践总结\"}],\"collapsed\":false},{\"text\":\"<img class=\\\"chinese-zodiac\\\" style=\\\"position: static; vertical-align: middle; padding-bottom: 3px;\\\" src=\\\"/img/svg/chinese-zodiac/tiger.svg\\\" title=\\\"虎年\\\" alt=\\\"生肖\\\">\\n 2022年 (15篇)\",\"items\":[{\"text\":\"<div class=\\\"text-color-red mr-[6px]\\\" style=\\\"font-weight: 550; display: inline-block;\\\">1</div>简单聊聊如何让网站开启灰色显示\",\"link\":\"/categories/fragments/2022/12/07/网站开启灰色显示\"},{\"text\":\"<div class=\\\"text-color-orange mr-[6px]\\\" style=\\\"font-weight: 550; display: inline-block;\\\">2</div>使用 IntelliJ IDEA 进行远程程序调试\",\"link\":\"/categories/fragments/2022/11/01/使用IDEA进行远程程序调试\"},{\"text\":\"<div class=\\\"text-color-yellow mr-[6px]\\\" style=\\\"font-weight: 550; display: inline-block;\\\">3</div>CentOS 安装 Docker、Docker Compose\",\"link\":\"/categories/fragments/2022/10/31/CentOS安装Docker\"},{\"text\":\"<div class=\\\"text-color-gray mr-[6px]\\\" style=\\\"font-weight: 550; display: inline-block;\\\">4</div>Docker 安装 MinIO 详细步骤\",\"link\":\"/categories/fragments/2022/10/28/Docker安装MinIO\"},{\"text\":\"<div class=\\\"text-color-gray mr-[6px]\\\" style=\\\"font-weight: 550; display: inline-block;\\\">5</div>Docker 安装 Consul 详细步骤\",\"link\":\"/categories/fragments/2022/10/27/Docker安装Consul\"},{\"text\":\"<div class=\\\"text-color-gray mr-[6px]\\\" style=\\\"font-weight: 550; display: inline-block;\\\">6</div>Docker 安装 OpenLDAP 详细步骤\",\"link\":\"/categories/fragments/2022/10/26/Docker安装OpenLDAP\"},{\"text\":\"<div class=\\\"text-color-gray mr-[6px]\\\" style=\\\"font-weight: 550; display: inline-block;\\\">7</div>个人常用快捷键\",\"link\":\"/categories/fragments/2022/10/06/个人常用快捷键\"},{\"text\":\"<div class=\\\"text-color-gray mr-[6px]\\\" style=\\\"font-weight: 550; display: inline-block;\\\">8</div>个人常用 Git 命令\",\"link\":\"/categories/fragments/2022/10/05/个人常用Git命令\"},{\"text\":\"<div class=\\\"text-color-gray mr-[6px]\\\" style=\\\"font-weight: 550; display: inline-block;\\\">9</div>个人常用 Docker 命令\",\"link\":\"/categories/fragments/2022/10/01/个人常用Docker命令\"},{\"text\":\"<div class=\\\"text-color-gray mr-[6px]\\\" style=\\\"font-weight: 550; display: inline-block;\\\">10</div>内网CentOS服务器设置网络代理\",\"link\":\"/categories/fragments/2022/08/29/内网CentOS服务器设置网络代理\"},{\"text\":\"<div class=\\\"text-color-gray mr-[6px]\\\" style=\\\"font-weight: 550; display: inline-block;\\\">11</div>为指定Git仓库单独配置用户名和邮箱\",\"link\":\"/categories/fragments/2022/03/28/为指定Git仓库单独配置用户名和邮箱\"},{\"text\":\"<div class=\\\"text-color-gray mr-[6px]\\\" style=\\\"font-weight: 550; display: inline-block;\\\">12</div>修改Git所有提交记录中的作者和邮箱\",\"link\":\"/categories/fragments/2022/03/27/修改Git所有提交记录中的作者和邮箱\"},{\"text\":\"<div class=\\\"text-color-gray mr-[6px]\\\" style=\\\"font-weight: 550; display: inline-block;\\\">13</div>修改Git最后一次提交记录的作者和邮箱\",\"link\":\"/categories/fragments/2022/03/26/修改Git最后一次提交记录的作者和邮箱\"},{\"text\":\"<div class=\\\"text-color-gray mr-[6px]\\\" style=\\\"font-weight: 550; display: inline-block;\\\">14</div>合并两个Git仓库的历史提交记录\",\"link\":\"/categories/fragments/2022/03/25/合并两个Git仓库的历史提交记录\"},{\"text\":\"<div class=\\\"text-color-gray mr-[6px]\\\" style=\\\"font-weight: 550; display: inline-block;\\\">15</div>个人常用 SQL 函数\",\"link\":\"/categories/fragments/2022/02/16/个人常用SQL函数\"}],\"collapsed\":true},{\"text\":\"<img class=\\\"chinese-zodiac\\\" style=\\\"position: static; vertical-align: middle; padding-bottom: 3px;\\\" src=\\\"/img/svg/chinese-zodiac/ox.svg\\\" title=\\\"牛年\\\" alt=\\\"生肖\\\">\\n 2021年 (2篇)\",\"items\":[{\"text\":\"<div class=\\\"text-color-red mr-[6px]\\\" style=\\\"font-weight: 550; display: inline-block;\\\">1</div>设计模式之单例模式\",\"link\":\"/categories/fragments/2021/05/29/设计模式之单例模式\"},{\"text\":\"<div class=\\\"text-color-orange mr-[6px]\\\" style=\\\"font-weight: 550; display: inline-block;\\\">2</div>精密计算工具类-BigDecimal\",\"link\":\"/categories/fragments/2021/03/12/精密计算工具类-BigDecimal\"}],\"collapsed\":true},{\"text\":\"<img class=\\\"chinese-zodiac\\\" style=\\\"position: static; vertical-align: middle; padding-bottom: 3px;\\\" src=\\\"/img/svg/chinese-zodiac/pig.svg\\\" title=\\\"猪年\\\" alt=\\\"生肖\\\">\\n 2019年 (4篇)\",\"items\":[{\"text\":\"<div class=\\\"text-color-red mr-[6px]\\\" style=\\\"font-weight: 550; display: inline-block;\\\">1</div>个人常用 Linux 命令\",\"link\":\"/categories/fragments/2019/12/31/个人常用Linux命令\"},{\"text\":\"<div class=\\\"text-color-orange mr-[6px]\\\" style=\\\"font-weight: 550; display: inline-block;\\\">2</div>个人常用 Hutool 工具类\",\"link\":\"/categories/fragments/2019/12/30/个人常用Hutool工具类\"},{\"text\":\"<div class=\\\"text-color-yellow mr-[6px]\\\" style=\\\"font-weight: 550; display: inline-block;\\\">3</div>个人常用 Stream 使用技巧\",\"link\":\"/categories/fragments/2019/12/29/个人常用Stream使用技巧\"},{\"text\":\"<div class=\\\"text-color-gray mr-[6px]\\\" style=\\\"font-weight: 550; display: inline-block;\\\">4</div>个人 SQL 优化技巧\",\"link\":\"/categories/fragments/2019/12/28/个人SQL优化技巧\"}],\"collapsed\":true}],\"/categories/solutions/\":[{\"text\":\"<img class=\\\"chinese-zodiac\\\" style=\\\"position: static; vertical-align: middle; padding-bottom: 3px;\\\" src=\\\"/img/svg/chinese-zodiac/tiger.svg\\\" title=\\\"虎年\\\" alt=\\\"生肖\\\">\\n 2022年 (1篇)\",\"items\":[{\"text\":\"<div class=\\\"text-color-red mr-[6px]\\\" style=\\\"font-weight: 550; display: inline-block;\\\">1</div>递归查询树型结构数据的性能优化方案\",\"link\":\"/categories/solutions/2022/09/07/递归查询树型结构数据的性能优化方案\"}],\"collapsed\":false},{\"text\":\"<img class=\\\"chinese-zodiac\\\" style=\\\"position: static; vertical-align: middle; padding-bottom: 3px;\\\" src=\\\"/img/svg/chinese-zodiac/ox.svg\\\" title=\\\"牛年\\\" alt=\\\"生肖\\\">\\n 2021年 (2篇)\",\"items\":[{\"text\":\"<div class=\\\"text-color-red mr-[6px]\\\" style=\\\"font-weight: 550; display: inline-block;\\\">1</div>一条SQL查询今年每月统计信息\",\"link\":\"/categories/solutions/2021/11/22/一条SQL查询今年每月统计信息\"},{\"text\":\"<div class=\\\"text-color-orange mr-[6px]\\\" style=\\\"font-weight: 550; display: inline-block;\\\">2</div>用Java8获取近N天日期\",\"link\":\"/categories/solutions/2021/11/18/用Java8获取近N天日期\"}],\"collapsed\":true}],\"/categories/tools/\":[{\"text\":\"<img class=\\\"chinese-zodiac\\\" style=\\\"position: static; vertical-align: middle; padding-bottom: 3px;\\\" src=\\\"/img/svg/chinese-zodiac/ox.svg\\\" title=\\\"牛年\\\" alt=\\\"生肖\\\">\\n 2021年 (5篇)\",\"items\":[{\"text\":\"<div class=\\\"text-color-red mr-[6px]\\\" style=\\\"font-weight: 550; display: inline-block;\\\">1</div>Quartz 快速入门\",\"link\":\"/categories/tools/2021/03/10/Quartz快速入门\"},{\"text\":\"<div class=\\\"text-color-orange mr-[6px]\\\" style=\\\"font-weight: 550; display: inline-block;\\\">2</div>Postman 快速入门\",\"link\":\"/categories/tools/2021/03/06/Postman快速入门\"},{\"text\":\"<div class=\\\"text-color-yellow mr-[6px]\\\" style=\\\"font-weight: 550; display: inline-block;\\\">3</div>Another Redis Desktop Manager 快速入门\",\"link\":\"/categories/tools/2021/03/04/ARDM快速入门\"},{\"text\":\"<div class=\\\"text-color-gray mr-[6px]\\\" style=\\\"font-weight: 550; display: inline-block;\\\">4</div>Redis Desktop Manager 快速入门\",\"link\":\"/categories/tools/2021/02/22/RDM快速入门\"},{\"text\":\"<div class=\\\"text-color-gray mr-[6px]\\\" style=\\\"font-weight: 550; display: inline-block;\\\">5</div>初识 Lombok\",\"link\":\"/categories/tools/2021/01/14/初识Lombok\"}],\"collapsed\":false}],\"/courses/java/\":[{\"text\":\"Java语法入门 (14篇)\",\"items\":[{\"text\":\"<div class=\\\"text-color-red mr-[6px]\\\" style=\\\"font-weight: 550; display: inline-block;\\\">1</div>开发环境搭建\",\"link\":\"/courses/java/01-Java语法入门/01-开发环境搭建\"},{\"text\":\"<div class=\\\"text-color-orange mr-[6px]\\\" style=\\\"font-weight: 550; display: inline-block;\\\">2</div>第一个Java程序\",\"link\":\"/courses/java/01-Java语法入门/02-第一个Java程序\"},{\"text\":\"<div class=\\\"text-color-yellow mr-[6px]\\\" style=\\\"font-weight: 550; display: inline-block;\\\">3</div>初识Eclipse\",\"link\":\"/courses/java/01-Java语法入门/03-初识Eclipse\"},{\"text\":\"<div class=\\\"text-color-gray mr-[6px]\\\" style=\\\"font-weight: 550; display: inline-block;\\\">4</div>程序和计算机的那点事儿\",\"link\":\"/courses/java/01-Java语法入门/04-程序和计算机的那点事儿\"},{\"text\":\"<div class=\\\"text-color-gray mr-[6px]\\\" style=\\\"font-weight: 550; display: inline-block;\\\">5</div>变量和常量\",\"link\":\"/courses/java/01-Java语法入门/05-变量和常量\"},{\"text\":\"<div class=\\\"text-color-gray mr-[6px]\\\" style=\\\"font-weight: 550; display: inline-block;\\\">6</div>常用的运算符\",\"link\":\"/courses/java/01-Java语法入门/06-常用的运算符\"},{\"text\":\"<div class=\\\"text-color-gray mr-[6px]\\\" style=\\\"font-weight: 550; display: inline-block;\\\">7</div>控制语句和流程图\",\"link\":\"/courses/java/01-Java语法入门/07-控制语句和流程图\"},{\"text\":\"<div class=\\\"text-color-gray mr-[6px]\\\" style=\\\"font-weight: 550; 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