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fix：【framework 框架】MyBatisUtils addOrder 时，未兼容 LambdaQueryWrapper 场景

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YunaiV
2025-08-17 11:24:31 +08:00
parent b5d5fa8ea4
commit 2e47ffdba1
1 changed files with 26 additions and 5 deletions
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31
yudao-framework/yudao-spring-boot-starter-mybatis/src/main/java/cn/iocoder/yudao/framework/mybatis/core/util/MyBatisUtils.java
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@ -9,6 +9,7 @@ import cn.iocoder.yudao.framework.common.pojo.SortingField;
import cn.iocoder.yudao.framework.mybatis.core.enums.DbTypeEnum; import cn.iocoder.yudao.framework.mybatis.core.enums.DbTypeEnum;
import com.baomidou.mybatisplus.annotation.DbType; import com.baomidou.mybatisplus.annotation.DbType;
import com.baomidou.mybatisplus.core.conditions.Wrapper; import com.baomidou.mybatisplus.core.conditions.Wrapper;
import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper; import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
import com.baomidou.mybatisplus.core.metadata.OrderItem; import com.baomidou.mybatisplus.core.metadata.OrderItem;
import com.baomidou.mybatisplus.core.toolkit.StringPool; import com.baomidou.mybatisplus.core.toolkit.StringPool;
@ -47,16 +48,36 @@ public class MyBatisUtils {
return page; return page;
} }
@SuppressWarnings("PatternVariableCanBeUsed")
public static <T> void addOrder(Wrapper<T> wrapper, Collection<SortingField> sortingFields) { public static <T> void addOrder(Wrapper<T> wrapper, Collection<SortingField> sortingFields) {
if (CollUtil.isEmpty(sortingFields)) { if (CollUtil.isEmpty(sortingFields)) {
return; return;
} }
QueryWrapper<T> query = (QueryWrapper<T>) wrapper; if (wrapper instanceof QueryWrapper<T>) {
for (SortingField sortingField : sortingFields) { QueryWrapper<T> query = (QueryWrapper<T>) wrapper;
query.orderBy(true, for (SortingField sortingField : sortingFields) {
SortingField.ORDER_ASC.equals(sortingField.getOrder()), query.orderBy(true,
StrUtil.toUnderlineCase(sortingField.getField())); SortingField.ORDER_ASC.equals(sortingField.getOrder()),
StrUtil.toUnderlineCase(sortingField.getField()));
}
} else if (wrapper instanceof LambdaQueryWrapper<T>) {
// LambdaQueryWrapper 不直接支持字符串字段排序，使用 last 方法拼接 ORDER BY
LambdaQueryWrapper<T> lambdaQuery = (LambdaQueryWrapper<T>) wrapper;
StringBuilder orderBy = new StringBuilder();
for (SortingField sortingField : sortingFields) {
if (StrUtil.isNotEmpty(orderBy)) {
orderBy.append(", ");
}
orderBy.append(StrUtil.toUnderlineCase(sortingField.getField()))
.append(" ")
.append(SortingField.ORDER_ASC.equals(sortingField.getOrder()) ? "ASC" : "DESC");
}
lambdaQuery.last("ORDER BY " + orderBy);
// 另外个思路：https://blog.csdn.net/m0_59084856/article/details/138450913
} else {
throw new IllegalArgumentException("Unsupported wrapper type: " + wrapper.getClass().getName());
} }
} }
/** /**