标签：映射 link figure port tor java类 pass get 事务
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE configuration
PUBLIC "-//mybatis.org//DTD Config 3.0//EN"
"http://mybatis.org/dtd/mybatis-3-config.dtd">
<configuration>
<typeAliases>
<typeAlias alias="User" type="com.tanlei.newer.pojo.User"></typeAlias>
</typeAliases>
<environments default="development">
<environment id="development">
<transactionManager type="JDBC"></transactionManager>
<dataSource type="POOLED">
<property name="driver" value="com.mysql.jdbc.Driver"></property>
<property name="url" value="jdbc:mysql://localhost:3306/test?useUnicode=true&characterEncoding=utf8"></property>
<property name="username" value="root"></property>
<property name="password" value="password"></property>
</dataSource>
</environment>
</environments>
<mappers>
<mapper resource="com/tanlei/newer/pojo/User.xml"></mapper>
</mappers>
</configuration>
JAVA类
package com.tanlei.newer.pojo;
/**
* @author:Mr.Tan
* @Create:2018-10-31-16-05
**/
public class User {
private int id;
private String name;
private String dept;
private String phone;
private String website;
public String getWebsite() {
return website;
}
public void setWebsite(String website) {
this.website = website;
}
public int getId() {
return id;
}
public void setId(int id) {
this.id = id;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public String getDept() {
return dept;
}
public void setDept(String dept) {
this.dept = dept;
}
public String getPhone() {
return phone;
}
public void setPhone(String phone) {
this.phone = phone;
}
}
接口类
package com.tanlei.newer.pojo;
import java.util.List;
public interface IUser {
//查找一个用户信息
public User getUser(int id);
//增加一个用户
public void insertUser(User user);
//删除一个用户
public void deleteUser(int userid);
//修改一个用户
public void updateUser(User user);
//查询所有用户
public List<User> getUserList();
}
映射文件
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE mapper
PUBLIC "-//mybatis.org//DTD mapper 3.0//EN"
"http://mybatis.org/dtd/mybatis-3-mapper.dtd">
<!--<mapper namespace="user">-->
<mapper namespace="com.tanlei.newer.pojo.IUser">
<!--根据用户id查找一个用户信息-->
<select id="getUser" parameterType="int" resultType="User">
SELECT * FROM USER WHERE id=#{userId}
</select>
<!--添加一个用户-->
<insert id="insertUser" parameterType="User">
INSERT INTO USER(name,dept,phone,website) VALUES(#{name},#{dept},#{phone},#{website});
</insert>
<!--根据id删除一个用户-->
<delete id="deleteUser" parameterType="int">
DELETE FROM USER WHERE id = #{id}
</delete>
<!--修改用户信息-->
<update id="updateUser" parameterType="User">
UPDATE USER SET
name=#{name},
dept = #{dept},
website = #{website},
phone = #{phone}
WHERE id =#{id}
</update>
<!--获取所有用户-->
<select id="getUserList" resultType="User">
SELECT * FROM USER
</select>
</mapper>
main启动类方法
package com.tanlei.newer.test; import com.tanlei.newer.pojo.IUser; import com.tanlei.newer.pojo.User; 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 java.io.IOException; import java.io.Reader; /** * @author:Mr.Tan * @Create:2018-10-31-16-39 **/ public class main { private static Reader reader; private static SqlSessionFactory sqlSessionFactory; static{ try { reader= Resources.getResourceAsReader("config/Configure.xml"); sqlSessionFactory=new SqlSessionFactoryBuilder().build(reader); } catch (IOException e) { e.printStackTrace(); } } public SqlSessionFactory getSession(){ return sqlSessionFactory; } public static void main(String[] args) { SqlSession sqlSession=sqlSessionFactory.openSession(); /*//根据id查找单个用户信息 User user = sqlSession.selectOne( "com.tanlei.newer.pojo.IUser.getUser",1); System.out.println(user.getName());*/ /*添加一个用户 insertUser();*/ /*删除用户 deleteUser();*/ /*根据id修改用户信息 updateUser(); */ /*获取用户列表 getUserList();*/ sqlSession.close();; } //添加一个用户 public static void insertUser(){ // 获取Session连接 SqlSession session = sqlSessionFactory.openSession(); // 获取Mapper IUser userMapper = session.getMapper(IUser.class); // 执行插入 User user = new User(); user.setName("Google"); user.setDept("Tech"); user.setWebsite("http://www.google.com"); user.setPhone("120"); userMapper.insertUser(user); // 提交事务 session.commit(); } //删除用户 public static void deleteUser(){ // 获取Session连接 SqlSession session = sqlSessionFactory.openSession(); // 获取Mapper IUser iuser = session.getMapper(IUser.class); iuser.deleteUser(1); session.commit(); } //根据id修改用户信息 public static void updateUser(){ // 获取Session连接 SqlSession session = sqlSessionFactory.openSession(); // 获取Mapper IUser iuser = session.getMapper(IUser.class); User user=iuser.getUser(1); user.setName("谭磊"); iuser.updateUser(user); session.commit(); } //查找所有用户信息 public static void getUserList(){ // 获取Session连接 SqlSession session = sqlSessionFactory.openSession(); // 获取Mapper IUser userMapper = session.getMapper(IUser.class); for(User user:userMapper.getUserList()){ System.out.println(user.getName() ); } session.commit(); } }
标签：映射 link figure port tor java类 pass get 事务
原文地址：https://www.cnblogs.com/tanlei-sxs/p/9883761.html
