需要用到的包：(这里只是其中一个版本，其他的百度) mysql-connector-java-5.1.6-bin mybatis-3.2.2 先看项目目录： 配置文件mybatisconfig.xml: ?xml version=1.0 encoding=UTF-8?!DOCTYPE configurationPUBLIC -//mybatis.org//DTD Config 3.0//ENhttp:/

需要用到的包：(这里只是其中一个版本，其他的百度)

mysql-connector-java-5.1.6-bin

mybatis-3.2.2

先看项目目录：

配置文件mybatisconfig.xml:

实体类User.java:

package com.miquan.mybatis.bean;

public class User {

private int id;

private String userName;

private String password;

public User(int id, String userName, String password) {

super();

this.id = id;

this.userName = userName;

this.password = password;

}

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 getPassword() {

return password;

}

public void setPassword(String password) {

this.password = password;

}

}

User.xml:

IUserOperation.java:

package com.miquan.mybatis.inter;

import java.util.List;

import org.apache.ibatis.annotations.Delete;

import org.apache.ibatis.annotations.Insert;

import org.apache.ibatis.annotations.Select;

import org.apache.ibatis.annotations.Update;

import com.miquan.mybatis.bean.User;

public interface IUserOperation {

@Select("select * from User where id = #{id}")

public User selectById(int id);

@Select("select * from User where userName = #{userName}")

public ListselectUsers(String userName);

@Insert("insert into User values(null, #{userName}, #{password})")

public boolean addUser(User user);

@Delete("delete from User where id = #{id}")

public boolean delUser(int id);

@Update("update User "

+ "set userName = #{userName}, "

+ "password = #{password} "

+ "where id = #{id}")

public boolean updateUser(User user);

}

最后进行测试：Test.java:

package com.miquan.mybatis.test;

import java.io.InputStream;

import java.util.List;

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 com.miquan.mybatis.bean.User;

import com.miquan.mybatis.inter.IUserOperation;

public class Test {

static SqlSession session;

public static void main(String[] args) {

try {

//获取session

InputStream is = Resources.getResourceAsStream("mybatisconfig.xml");

SqlSessionFactory sqlSessionFactory =

new SqlSessionFactoryBuilder().build(is);

session = sqlSessionFactory.openSession();

//XML配置对应用法

//User user = session.selectOne("com.miquan.mybatis.bean.UserDB.selectById", 1);

//System.out.println(user.toString());

//接口调用法

//注意：insert、delete和update方法调用之后必须commit才能真正的改变数据

IUserOperation userOperation = session.getMapper(IUserOperation.class);

//查

//User user = userOperation.selectById(1);

//System.out.println(user.toString());

//查找List

//Listusers = userOperation.selectUsers("miquan");

//System.out.println(users.size());

//增

//User user = new User();

//user.setUserName("zhiquan");

//user.setPassword("999");

//userOperation.addUser(user);

//session.commit();

//删

//userOperation.delUser(7);

//session.commit();

//改

User user = new User(8, "qiantu", "shaxppp");

userOperation.updateUser(user);

session.commit();

} catch (Exception e) {

e.printStackTrace();

} finally {

try {

session.close();

} catch (Exception e) {

e.printStackTrace();

}

}

}

}

简单的增删查改可以实现了。

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