标签：stack dao using tar turn from ret auto deb
需求，根据用户角色列表 查询用户列表信息
之前我们传入的参数是Array，一个数组的形式，现在我们传入的是一个List集合，其他条件没有变化。
/**
* 需求：传入指定的用户角色，用户角色有1-n,获取这些用户角色下的用户列表信息
* @param roleids
* @return
*/
public List<User> getUserListByRoleid_List(List<Integer> roleList);
<resultMap type="User" id="userListArray">
<id property="id" column="id"/>
<result property="userCode" column="userCode" />
<result property="userName" column="userName" />
<result property="userRole" column="userRole" />
</resultMap>
<!-- 使用第二中方式机型入参，传入的参数是list集合 -->
<select id="getUserListByRoleid_List" resultMap="userListArray" >
select * from smbms_user where userRole in
<foreach collection="list" item="roleList" open="(" separator="," close=")">
#{roleList}
</foreach>
</select>
1 //传入List集合的方式 2 @Test 3 public void testGetUserByForeach_List(){ 4 SqlSession sqlSession = null; 5 List<Integer> userList = new ArrayList<Integer>(); 6 userList.add(2); 7 userList.add(3); 8 List<User> userListShow=new ArrayList<User>(); 9 try { 10 sqlSession = MyBatisUtil.createSqlSession(); 11 userListShow = sqlSession.getMapper(UserMapper.class).getUserListByRoleid_List(userList); 12 13 } catch (Exception e) { 14 // TODO: handle exception 15 e.printStackTrace(); 16 }finally{ 17 MyBatisUtil.closeSqlSession(sqlSession); 18 } 19 for(User user: userListShow){ 20 logger.debug("testGetUserListAddressByUserId UserCode: " + user.getUserCode() + " and UserName: " + user.getUserName()+"and userRole:"+user.getUserRole()); 21 } 22 23 24 }
运行结果：
1 [DEBUG] 2019-12-22 15:13:43,496 cn.smbms.dao.user.UserMapper.getUserListByRoleid_List - ooo Using Connection [com.mysql.jdbc.JDBC4Connection@28bb494b] 2 [DEBUG] 2019-12-22 15:13:43,496 cn.smbms.dao.user.UserMapper.getUserListByRoleid_List - ==> Preparing: select * from smbms_user where userRole in ( ? , ? ) 3 [DEBUG] 2019-12-22 15:13:43,514 cn.smbms.dao.user.UserMapper.getUserListByRoleid_List - ==> Parameters: 2(Integer), 3(Integer) 4 [DEBUG] 2019-12-22 15:13:43,550 org.apache.ibatis.transaction.jdbc.JdbcTransaction - Resetting autocommit to true on JDBC Connection [com.mysql.jdbc.JDBC4Connection@28bb494b] 5 [DEBUG] 2019-12-22 15:13:43,551 org.apache.ibatis.transaction.jdbc.JdbcTransaction - Closing JDBC Connection [com.mysql.jdbc.JDBC4Connection@28bb494b] 6 [DEBUG] 2019-12-22 15:13:43,551 org.apache.ibatis.datasource.pooled.PooledDataSource - Returned connection 683362635 to pool. 7 [DEBUG] 2019-12-22 15:13:43,551 cn.smbms.dao.user.UserMapperTest - testGetUserListAddressByUserId UserCode: liming and UserName: 李明and userRole:2 8 [DEBUG] 2019-12-22 15:13:43,551 cn.smbms.dao.user.UserMapperTest - testGetUserListAddressByUserId UserCode: hanlubiao and UserName: 韩路彪and userRole:2 9 [DEBUG] 2019-12-22 15:13:43,551 cn.smbms.dao.user.UserMapperTest - testGetUserListAddressByUserId UserCode: zhanghua and UserName: 张华and userRole:3 10 [DEBUG] 2019-12-22 15:13:43,551 cn.smbms.dao.user.UserMapperTest - testGetUserListAddressByUserId UserCode: wangyang and UserName: 王洋and userRole:3 11 [DEBUG] 2019-12-22 15:13:43,551 cn.smbms.dao.user.UserMapperTest - testGetUserListAddressByUserId UserCode: zhaoyan and UserName: 赵燕and userRole:3 12 [DEBUG] 2019-12-22 15:13:43,551 cn.smbms.dao.user.UserMapperTest - testGetUserListAddressByUserId UserCode: sunlei and UserName: 孙磊and userRole:3 13 [DEBUG] 2019-12-22 15:13:43,551 cn.smbms.dao.user.UserMapperTest - testGetUserListAddressByUserId UserCode: sunxing and UserName: 孙兴and userRole:3 14 [DEBUG] 2019-12-22 15:13:43,551 cn.smbms.dao.user.UserMapperTest - testGetUserListAddressByUserId UserCode: zhangchen and UserName: 张晨and userRole:3 15 [DEBUG] 2019-12-22 15:13:43,551 cn.smbms.dao.user.UserMapperTest - testGetUserListAddressByUserId UserCode: dengchao and UserName: 邓超and userRole:3 16 [DEBUG] 2019-12-22 15:13:43,551 cn.smbms.dao.user.UserMapperTest - testGetUserListAddressByUserId UserCode: yangguo and UserName: 杨过and userRole:3 17 [DEBUG] 2019-12-22 15:13:43,551 cn.smbms.dao.user.UserMapperTest - testGetUserListAddressByUserId UserCode: zhaomin and UserName: 赵敏and userRole:2
mybatis框架，使用foreach实现复杂结果的查询--循环List集合方式
标签：stack dao using tar turn from ret auto deb
原文地址：https://www.cnblogs.com/dongyaotou/p/12079917.html
