MyBatis 通用Mapper中的example使用

MyBatis 通用Mapper中的example使用

排序：example.orderBy(DArticles.CREATED_AT).desc().orderBy(DArticles.AUTHOR_NAME).asc();
分頁：ca.andCondition("limit"," 0,10")

Example example = new Example(DArticles.class);
Example.Criteria ca = example.createCriteria();
ca.andEqualTo(DArticles.AUTHOR_NAME, "xxx");
ca.andCondition("limit"," 0,10")
example.orderBy(DArticles.CREATED_AT).desc().orderBy(DArticles.AUTHOR_NAME).asc();
List list = dArticlesMapper.selectByExample(example);

//DArticles.CREATED_AT 是自動生成的表字段對應屬性，避免硬編碼
//只需要再MBG中添加
<property name="generateColumnConsts" value="true" />
// 全部代碼：
<!-- 繼承的通用基礎Mapper -->
<plugin type="tk.mybatis.mapper.generator.MapperPlugin">
	<property name="mappers" value="com.me.yuri.tk.common.TmsBaseMapper" />
	<property name="caseSensitive" value="true" />
	<property name="forceAnnotation" value="true" />
	<property name="lombok" value="Data" />
	<property name="beginningDelimiter" value="`" />
	<property name="endingDelimiter" value="`" />
	<property name="swagger" value="true" />
	<property name="generateColumnConsts" value="true" />
</plugin>
//即可生成：如下
public static final String AUTHOR_NAME = "authorName";
public static final String CREATED_AT = "createdAt";

另：

import org.apache.ibatis.annotations.Param;
import org.apache.ibatis.annotations.Select;

/**
 * 在自動生成的接口文件中加入自定義的SQL語句，xml中無需配置sql
 */
public interface RoleMapper extends TmsBaseMapper<Role> {

	
	@Select("select * from role")
	List<Role> queryList();

	@Select("select * from role where id = #{id}")
	Role queryByID(@Param("id") String id);
}

//使用:
Role role = roleMapper.queryByID("id");

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