package com.hope.dao;import com.hope.domain.Account;import org.apache.ibatis.annotations.One;import org.apache.ibatis.annotations.Result;import org.apache.ibatis.annotations.Results;import org.apache.ibatis.annotations.Select;import org.apache.ibatis.mapping.FetchType;import java.util.List;/** * @author newcityman * @date 2019/11/17 - 19:50 */public interface IAccountDao { /** * 查询所有账户信息 */ @Select("select * from account") @Results( id = "accountMap",value={ @Result(id=true,column = "id",property = "id"), @Result(column = "uid",property = "uid"), @Result(column = "money",property = "money"), @Result(column = "uid",property = "user", one=@One(select = "com.hope.dao.IUserDao.findOne", fetchType = FetchType.EAGER )) }) public List<Account> findAll();}
package com.hope.test;import com.hope.dao.IAccountDao;import com.hope.domain.Account;import org.apache.ibatis.io.Resources;import org.apache.ibatis.session.SqlSession;import org.apache.ibatis.session.SqlSessionFactory;import org.apache.ibatis.session.SqlSessionFactoryBuilder;import org.junit.After;import org.junit.Before;import org.junit.Test;import java.io.InputStream;import java.util.List;/** * @author newcityman * @date 2019/11/17 - 20:02 */public class AccountTest { private InputStream in; private SqlSessionFactory factory; private SqlSession sqlSession; private IAccountDao accountDao; @Before public void init() throws Exception { in = Resources.getResourceAsStream("SqlMapConfig.xml"); factory = new SqlSessionFactoryBuilder().build(in); sqlSession = factory.openSession(); accountDao = sqlSession.getMapper(IAccountDao.class); } @After public void destroy()throws Exception{ sqlSession.close(); in.close(); } @Test public void testFindAll() { List<Account> accounts = accountDao.findAll(); for(Account account:accounts){ System.out.println(account); System.out.println(account.getUser()); } }}
