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refactor: 优化 QueryType 枚举值命名并修复部分错误

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This commit is contained in:
Charles7c
2024-01-23 23:37:38 +08:00
parent 6dc20e8909
commit f16b968b3f
4 changed files with 156 additions and 153 deletions
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15
continew-starter-data/continew-starter-data-mybatis-plus/src/main/java/top/charles7c/continew/starter/data/mybatis/plus/query/Query.java
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@@ -21,8 +21,9 @@ import java.lang.annotation.*;
/**
* 查询注解
*
* @author Zheng Jie（<a href="https://gitee.com/elunez/eladmin">ELADMIN</a>）
* @author Charles7c
* @author Jasmine
* @author Zheng Jie（<a href="https://gitee.com/elunez/eladmin">ELADMIN</a>）
* @since 1.0.0
*/
@Target(ElementType.FIELD)
@@ -31,15 +32,17 @@ import java.lang.annotation.*;
public @interface Query {
/**
* 属性名数组
* columns为空 走实体类的字段，并且根据queryType来查询;
* columns不为空且columns长度为1，走columns[0]的字段，并且根据queryType来查询；
* columns不为空且columns长度大于1，走columns的所有字段， 并且根据queryType来查询； columns之间的处理是OR操作。
* 列名
*
* <p>
* columns 为空时，默认取值字段名（自动转换为下划线命名）；<br>
* columns 不为空且 columns 长度大于 1，多个列查询条件之间为或关系（OR）。
* </p>
*/
String[] columns() default {};
/**
* 查询类型（等值查询、模糊查询、范围查询等）
*/
QueryType type() default QueryType.EQUAL;
QueryType type() default QueryType.EQ;
}

135
continew-starter-data/continew-starter-data-mybatis-plus/src/main/java/top/charles7c/continew/starter/data/mybatis/plus/query/QueryHelper.java
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@@ -16,10 +16,10 @@
package top.charles7c.continew.starter.data.mybatis.plus.query;
import cn.hutool.core.util.ArrayUtil;
import cn.hutool.core.util.ObjectUtil;
import cn.hutool.core.util.StrUtil;
import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
import com.baomidou.mybatisplus.core.toolkit.ArrayUtils;
import lombok.AccessLevel;
import lombok.NoArgsConstructor;
import lombok.extern.slf4j.Slf4j;
@@ -30,13 +30,13 @@ import top.charles7c.continew.starter.core.util.validate.ValidationUtils;
import java.lang.reflect.Field;
import java.util.ArrayList;
import java.util.List;
import java.util.Objects;
/**
* 查询助手
*
* @author Zheng Jie（<a href="https://gitee.com/elunez/eladmin">ELADMIN</a>）
* @author Charles7c
* @author Jasmine
* @author Zheng Jie（<a href="https://gitee.com/elunez/eladmin">ELADMIN</a>）
* @since 1.0.0
*/
@Slf4j
@@ -44,12 +44,12 @@ import java.util.Objects;
public class QueryHelper {
/**
* 根据查询条件构建 MyBatis Plus 查询条件封装对象
* 根据查询条件构建查询条件封装对象
*
* @param query 查询条件
* @param <Q> 查询条件数据类型
* @param <R> 查询数据类型
* @return MyBatis Plus 查询条件封装对象
* @return 查询条件封装对象
*/
public static <Q, R> QueryWrapper<R> build(Q query) {
QueryWrapper<R> queryWrapper = new QueryWrapper<>();
@@ -57,87 +57,80 @@ public class QueryHelper {
if (null == query) {
return queryWrapper;
}
// 获取查询条件中所有的字段
// 解析并拼接查询条件
List<Field> fieldList = ReflectUtils.getNonStaticFields(query.getClass());
fieldList.forEach(field -> buildQuery(query, field, queryWrapper));
fieldList.forEach(field -> buildWrapper(query, field, queryWrapper));
return queryWrapper;
}
/**
* 构建 MyBatis Plus 查询条件封装对象
* 构建查询条件封装对象
*
* @param query 查询条件
* @param field 字段
* @param queryWrapper MyBatis Plus 查询条件封装对象
* @param queryWrapper 查询条件封装对象
* @param <Q> 查询条件数据类型
* @param <R> 查询数据类型
*/
public static <Q, R> void buildQuery(Q query, Field field, QueryWrapper<R> queryWrapper) {
public static <Q, R> void buildWrapper(Q query, Field field, QueryWrapper<R> queryWrapper) {
boolean accessible = field.canAccess(query);
try {
field.setAccessible(true);
String fieldName = field.getName();
String columnName = StrUtil.toUnderlineCase(fieldName);
// 如果字段值为空，直接返回
Object fieldValue = field.get(query);
if (ObjectUtil.isEmpty(fieldValue)) {
return;
}
// 获取 Query 注解信息
// 建议：数据库规范中列建议采用下划线连接法命名，程序规范中变量建议采用驼峰法命名
String fieldName = field.getName();
String columnName = StrUtil.toUnderlineCase(fieldName);
// 没有 @Query 注解，默认等值查询
Query queryAnnotation = field.getAnnotation(Query.class);
// 没有@Query注解，默认走实体类的字段 EQ精确 查询；
if (Objects.isNull(queryAnnotation)) {
if (null == queryAnnotation) {
queryWrapper.eq(columnName, fieldValue);
return;
}
// 解析单列查询
String[] columns = queryAnnotation.columns();
if (ArrayUtils.isEmpty(columns)) {
columnName = StrUtil.toUnderlineCase(columnName);
} else if (columns.length == 1) {
columnName = StrUtil.toUnderlineCase(columns[0]);
} else {
QueryType queryType = queryAnnotation.type();
queryWrapper.and(wrapper -> {
for (String column : columns) {
String underline = StrUtil.toUnderlineCase(column);
// 解析多属性查询
switch (queryType) {
case EQUAL -> queryWrapper.or().eq(underline, fieldValue);
case NOT_EQUAL -> queryWrapper.or().ne(underline, fieldValue);
case GREATER_THAN -> queryWrapper.or().gt(underline, fieldValue);
case LESS_THAN -> queryWrapper.or().lt(underline, fieldValue);
case GREATER_THAN_OR_EQUAL -> queryWrapper.or().ge(underline, fieldValue);
case LESS_THAN_OR_EQUAL -> queryWrapper.or().le(underline, fieldValue);
case BETWEEN -> {
List<Object> between = new ArrayList<>((List<Object>)fieldValue);
ValidationUtils.throwIf(between.size() != 2, "[{}] 必须是一个范围", fieldName);
queryWrapper.or().between(underline, between.get(0), between.get(1));
}
case LEFT_LIKE -> queryWrapper.or().likeLeft(underline, fieldValue);
case INNER_LIKE -> queryWrapper.or().like(underline, fieldValue);
case RIGHT_LIKE -> queryWrapper.or().likeRight(underline, fieldValue);
case IN -> {
ValidationUtils.throwIfEmpty(fieldValue, "[{}] 不能为空", fieldName);
queryWrapper.or().in(underline, (List<Object>)fieldValue);
}
case NOT_IN -> {
ValidationUtils.throwIfEmpty(fieldValue, "[{}] 不能为空", fieldName);
queryWrapper.or().notIn(underline, (List<Object>)fieldValue);
}
case IS_NULL -> queryWrapper.or().isNull(underline);
case IS_NOT_NULL -> queryWrapper.or().isNotNull(underline);
default -> throw new IllegalArgumentException(String.format("暂不支持 [%s] 查询类型", queryType));
}
}
});
final int columnLength = ArrayUtil.length(columns);
if (columnLength == 0 || columnLength == 1) {
columnName = columnLength == 1 ? columns[0] : columnName;
parse(queryAnnotation.type(), columnName, fieldValue, queryWrapper);
return;
}
// 解析查询条件
parse(queryAnnotation.type(), columnName, fieldValue, queryWrapper);
// 解析多列查询
QueryType queryType = queryAnnotation.type();
queryWrapper.nested(wrapper -> {
for (String column : columns) {
switch (queryType) {
case EQ -> queryWrapper.or().eq(column, fieldValue);
case NE -> queryWrapper.or().ne(column, fieldValue);
case GT -> queryWrapper.or().gt(column, fieldValue);
case GE -> queryWrapper.or().ge(column, fieldValue);
case LT -> queryWrapper.or().lt(column, fieldValue);
case LE -> queryWrapper.or().le(column, fieldValue);
case BETWEEN -> {
List<Object> between = new ArrayList<>((List<Object>)fieldValue);
ValidationUtils.throwIf(between.size() != 2, "[{}] 必须是一个范围", fieldName);
queryWrapper.or().between(column, between.get(0), between.get(1));
}
case LIKE -> queryWrapper.or().like(column, fieldValue);
case LIKE_LEFT -> queryWrapper.or().likeLeft(column, fieldValue);
case LIKE_RIGHT -> queryWrapper.or().likeRight(column, fieldValue);
case IN -> {
ValidationUtils.throwIfEmpty(fieldValue, "[{}] 不能为空", fieldName);
queryWrapper.or().in(column, (List<Object>)fieldValue);
}
case NOT_IN -> {
ValidationUtils.throwIfEmpty(fieldValue, "[{}] 不能为空", fieldName);
queryWrapper.or().notIn(column, (List<Object>)fieldValue);
}
case IS_NULL -> queryWrapper.or().isNull(column);
case IS_NOT_NULL -> queryWrapper.or().isNotNull(column);
default -> throw new IllegalArgumentException(String.format("暂不支持 [%s] 查询类型", queryType));
}
}
});
} catch (BadRequestException e) {
log.error("Build query occurred an validation error: {}. Query: {}, Field: {}.", e
.getMessage(), query, field, e);
@@ -155,30 +148,28 @@ public class QueryHelper {
* @param queryType 查询类型
* @param columnName 驼峰字段名
* @param fieldValue 字段值
* @param queryWrapper MyBatis Plus 查询条件封装对象
* @param queryWrapper 查询条件封装对象
* @param <R> 查询数据类型
*/
private static <R> void parse(QueryType queryType,
String columnName,
Object fieldValue,
QueryWrapper<R> queryWrapper) {
// 解析单个属性查询
// 注意：数据库规范中列采用下划线连接法命名，程序规范中变量采用驼峰法命名
switch (queryType) {
case EQUAL -> queryWrapper.eq(columnName, fieldValue);
case NOT_EQUAL -> queryWrapper.ne(columnName, fieldValue);
case GREATER_THAN -> queryWrapper.gt(columnName, fieldValue);
case LESS_THAN -> queryWrapper.lt(columnName, fieldValue);
case GREATER_THAN_OR_EQUAL -> queryWrapper.ge(columnName, fieldValue);
case LESS_THAN_OR_EQUAL -> queryWrapper.le(columnName, fieldValue);
case EQ -> queryWrapper.eq(columnName, fieldValue);
case NE -> queryWrapper.ne(columnName, fieldValue);
case GT -> queryWrapper.gt(columnName, fieldValue);
case GE -> queryWrapper.ge(columnName, fieldValue);
case LT -> queryWrapper.lt(columnName, fieldValue);
case LE -> queryWrapper.le(columnName, fieldValue);
case BETWEEN -> {
List<Object> between = new ArrayList<>((List<Object>)fieldValue);
ValidationUtils.throwIf(between.size() != 2, "[{}] 必须是一个范围", columnName);
queryWrapper.between(columnName, between.get(0), between.get(1));
}
case LEFT_LIKE -> queryWrapper.likeLeft(columnName, fieldValue);
case INNER_LIKE -> queryWrapper.like(columnName, fieldValue);
case RIGHT_LIKE -> queryWrapper.likeRight(columnName, fieldValue);
case LIKE -> queryWrapper.like(columnName, fieldValue);
case LIKE_LEFT -> queryWrapper.likeLeft(columnName, fieldValue);
case LIKE_RIGHT -> queryWrapper.likeRight(columnName, fieldValue);
case IN -> {
ValidationUtils.throwIfEmpty(fieldValue, "[{}] 不能为空", columnName);
queryWrapper.in(columnName, (List<Object>)fieldValue);

62
continew-starter-data/continew-starter-data-mybatis-plus/src/main/java/top/charles7c/continew/starter/data/mybatis/plus/query/QueryType.java
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@@ -30,62 +30,72 @@ import lombok.RequiredArgsConstructor;
public enum QueryType {
/**
* 等值查询，例如：WHERE `age` = 18
* 等于 =，例如：WHERE `age` = 18
*/
EQUAL(1, "="),
EQ,
/**
* 非等值查询，例如：WHERE `age` != 18
* 不等于 !=，例如：WHERE `age` != 18
*/
NOT_EQUAL(2, "!="),
NE,
/**
* 大于查询，例如：WHERE `age` > 18
* 大于 >，例如：WHERE `age` > 18
*/
GREATER_THAN(3, ">"),
GT,
/**
* 小于查询，例如：WHERE `age` < 18
* 大于等于 >= ，例如：WHERE `age` >= 18
*/
LESS_THAN(4, "<"),
GE,
/**
* 大于等于查询，例如：WHERE `age` >= 18
* 小于 <，例如：WHERE `age` < 18
*/
GREATER_THAN_OR_EQUAL(5, ">="),
LT,
/**
* 小于等于查询，例如：WHERE `age` <= 18
* 小于等于 <=，例如：WHERE `age` <= 18
*/
LESS_THAN_OR_EQUAL(6, "<="),
LE,
/**
* 范围查询，例如：WHERE `age` BETWEEN 10 AND 18
*/
BETWEEN(7, "BETWEEN"),
BETWEEN,
/**
* 左模糊查询，例如：WHERE `nickname` LIKE '%s'
* LIKE '%值%'，例如：WHERE `nickname` LIKE '%s%'
*/
LEFT_LIKE(8, "LIKE '%s'"),
LIKE,
/**
* 中模糊查询，例如：WHERE `nickname` LIKE '%s%'
* LIKE '%值'，例如：WHERE `nickname` LIKE '%s'
*/
INNER_LIKE(9, "LIKE '%s%'"),
LIKE_LEFT,
/**
* 右模糊查询，例如：WHERE `nickname` LIKE 's%'
* LIKE '值%'，例如：WHERE `nickname` LIKE 's%'
*/
RIGHT_LIKE(10, "LIKE 's%'"),
LIKE_RIGHT,
/**
* 包含查询，例如：WHERE `age` IN (10, 20, 30)
*/
IN(11, "IN"),
IN,
/**
* 不包含查询，例如：WHERE `age` NOT IN (20, 30)
*/
NOT_IN(12, "NOT IN"),
NOT_IN,
/**
* 空查询，例如：WHERE `email` IS NULL
*/
IS_NULL(13, "IS NULL"),
IS_NULL,
/**
* 非空查询，例如：WHERE `email` IS NOT NULL
*/
IS_NOT_NULL(14, "IS NOT NULL"),;
private final Integer value;
private final String description;
IS_NOT_NULL,;
}