mybatis的学习

标签：roo   property   commit   ssl   delete   direct   test   lis   type   

<!--核心配置文件-->
<configuration>

    <environments default="development">
        <environment id="development">
            <transactionManager type="JDBC"/>
            <dataSource type="POOLED">
                <property name="driver" value="com.mysql.jdbc.Driver"/>
                <property name="url" value="jdbc:mysql://localhost:3306/mybatis?useSSL=true&amp;useUnicode=true&amp;characterEncoding=UTF-8"/>
                <property name="username" value="root"/>
                <property name="password" value="123456"/>
            </dataSource>
        </environment>

<!--在build中配置resources,来防止我们的资源导出失败的问题-->
    <build>
        <resources>
            <resource>
                <directory>src/main/java</directory>
                <includes>
                    <include>**/*.properties</include>
                    <include>**/*.xml</include>
                </includes>
                <filtering>false</filtering>
            </resource>
            <resource>
                <directory>src/main/resources</directory>
                <includes>
                    <include>**/*.properties</include>
                    <include>**/*.xml</include>
                </includes>
                <filtering>false</filtering>
            </resource>
        </resources>
    </build>
以下是测试连接代码

@Test
public void  test1(){
    //获取sqlsession对象
    SqlSession sqlsession = mybatisutis.getsqlsession();
    //执行sql
    UserDao userDao = sqlsession.getMapper(UserDao.class);
    List<User> userList = userDao.getUserList();

    for (User user : userList) {
        System.out.println(user);
    }
    //关闭sqlsession
    sqlsession.close();
}

public class UserMapperTest {
    //查询所有用户的测试类
    @Test
    public void  test1(){
        //获取sqlsession对象
        SqlSession sqlsession = mybatisutis.getsqlsession();
        //执行sql
        UserMapper userMapper = sqlsession.getMapper(UserMapper.class);
        List<User> userList = userMapper.getUserList();

        for (User user : userList) {
            System.out.println(user);
        }
        //关闭sqlsession
        sqlsession.close();
    }
    //根据id查询某个用户
    @Test
    public  void  test2(){
        //获取sql执行对象
        SqlSession getsqlsession = mybatisutis.getsqlsession();
        //执行sql
        UserMapper mapper = getsqlsession.getMapper(UserMapper.class);

        User userByid = mapper.getuserByid(1);
        System.out.println(userByid);
        //关闭连接
        getsqlsession.close();
    }
    //添加用户
    @Test
    public  void  test3(){
        SqlSession getsqlsession2 = mybatisutis.getsqlsession();

        UserMapper mapper = getsqlsession2.getMapper(UserMapper.class);

        int i = mapper.addUser(new User(5, "lixiang", "123"));

        if (i>0){
            System.out.println("添加成功");
        }
        //提交事务
        getsqlsession2.commit();
        getsqlsession2.close();
    }
    //修改用户
    @Test
    public  void  test4(){
        SqlSession getsqlsession = mybatisutis.getsqlsession();
        UserMapper mapper = getsqlsession.getMapper(UserMapper.class);
        mapper.updete(new User(3,"何峰","123"));
        getsqlsession.commit();
        getsqlsession.close();
    }
    //删除用户
    @Test
    public  void  test5(){
        SqlSession getsqlsession = mybatisutis.getsqlsession();
        UserMapper mapper = getsqlsession.getMapper(UserMapper.class);
        mapper.deleteuser(3);
        getsqlsession.commit();
        getsqlsession.close();
    }

mybatis的学习

标签：roo   property   commit   ssl   delete   direct   test   lis   type   

原文地址：https://www.cnblogs.com/xinchengTan/p/13037659.html