package com.xu.pojo;import java.util.Date;/*** * @author 徐亮亮* Title: User* Description: POJO* Project: mybatis1* Package: com.xu.pojo* @date 2018年3月2日 下午11:27:29* @version 1.0*/
public class User {// 属性名和数据库表的字段对应private int id;private String username;// 用户姓名private String sex;// 性别private Date birthday;// 生日private String address;// 地址public int getId() {return id;}public void setId(int id) {this.id = id;}public String getUsername() {return username;}public void setUsername(String username) {this.username = username;}public String getSex() {return sex;}public void setSex(String sex) {this.sex = sex;}public Date getBirthday() {return birthday;}public void setBirthday(Date birthday) {this.birthday = birthday;}public String getAddress() {return address;}public void setAddress(String address) {this.address = address;}
}

package com.xu.dao;import com.xu.pojo.User;
/*** * @author 徐亮亮* Title: UserDao* Description: UserDao(功能：用来封装实体类与数据库的访问)* Project: mybatis1* Package: com.xu.dao* @date 2018年3月5日 上午12:52:11* @version 1.0*/
public interface UserDao {//根据id查询用户信息public User findUserById(int id) throws Exception;//添加用户信息public void addUser(User user) throws Exception;//删除用户信息public void deleteUSer(int id) throws Exception;
}

package com.xu.dao;import org.apache.ibatis.session.SqlSession;
import org.apache.ibatis.session.SqlSessionFactory;import com.xu.pojo.User;
/*** * @author 徐亮亮* Title: UserDaoImpl* Description: 接口的实现类* Project: mybatis1* Package: com.xu.dao* @date 2018年3月5日 上午1:31:35* @version 1.0*/
public class UserDaoImpl implements UserDao {private SqlSessionFactory sqlSessionFactory;//通过构造方法创建SqlSessionFactory会话工厂public UserDaoImpl(SqlSessionFactory sqlSessionFactory) {this.sqlSessionFactory = sqlSessionFactory;}/*** id 查询用户信息*/@Overridepublic User findUserById(int id) throws Exception {//通过sqlSessionFactory会话工厂创建SqlSession会话SqlSession sqlSession = sqlSessionFactory.openSession();//进行数据库的查询操作User user = sqlSession.selectOne("test.findUserById", id);//关闭SqlSession会话
        sqlSession.close();return user;}/*** 添加用户信息*/@Overridepublic void addUser(User user) throws Exception {SqlSession sqlSession = sqlSessionFactory.openSession();sqlSession.insert("test.addUser", user);//开启事务
        sqlSession.commit();sqlSession.close();}/*** 删除用户信息*/@Overridepublic void deleteUSer(int id) throws Exception {SqlSession sqlSession = sqlSessionFactory.openSession();sqlSession.delete("test.deleteUser", id);sqlSession.commit();sqlSession.close();}}

package com.xu.dao;import java.io.InputStream;import org.apache.ibatis.io.Resources;
import org.apache.ibatis.session.SqlSessionFactory;
import org.apache.ibatis.session.SqlSessionFactoryBuilder;
import org.junit.Before;
import org.junit.Test;import com.xu.pojo.User;public class UserDaoImplTest {private SqlSessionFactory sqlSessionFactory;@Beforepublic void setUp() throws Exception {//取得全局配置文件名称String resource = "SqlMapConfig.xml";//得到配置文件流InputStream inputStream = Resources.getResourceAsStream(resource);//创建会话工厂sqlSessionFactory = new SqlSessionFactoryBuilder().build(inputStream);}@Testpublic void testFindUserById() throws Exception {//实例化UserDao接口UserDao userDao = new UserDaoImpl(sqlSessionFactory);User user = userDao.findUserById(1);System.out.println(user.getUsername()+","+user.getSex());}@Testpublic void testAddUser() throws Exception {UserDao userDao = new UserDaoImpl(sqlSessionFactory);User user = new User();user.setUsername("孙琪");user.setSex("男");userDao.addUser(user);}@Testpublic void testDeleteUSer() throws Exception {UserDao userDao = new UserDaoImpl(sqlSessionFactory);userDao.deleteUSer(33);}}