Mybatis教程____mybatis超详细入门列子

1.mybatis官方简介

官方地址:http://www.mybatis.org/mybatis-3/zh/getting-started.html

2.mybatis下载

下载地址:https://github.com/mybatis/mybatis-3/releases

3.mybatis环境搭建

3.1创建mybatis配置文件mybatis-config

<?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>

<settings>
<setting name="jdbcTypeForNull" value="NULL"/>
</settings>

<typeAliases>
<typeAlias alias="alias_frame_user" type="com.frame.user.entity.FRAME_USER"/>
</typeAliases>

<environments default="development">
<environment id="development">
<transactionManager type="JDBC"/>
<dataSource type="POOLED">
<property name="driver" value="oracle.jdbc.driver.OracleDriver" />
<property name="url" value="jdbc:oracle:thin:@127.0.0.1:1521:orcl" />
<property name="username" value="oracle" />
<property name="password" value="123456" />
</dataSource>
</environment>
</environments>

<mappers>
<mapper resource="com/frame/user/entity/FRAME_USER.xml"/>
</mappers>
</configuration>

3.2创建实体类

package com.frame.user.entity;

import java.io.Serializable;

/**
* @author Administrator
* 用户实体类
*/
public class FRAME_USER implements Serializable{
/**
* SERID
*/
private static final long serialVersionUID = -6908476438878532829L;
/**
* generl po
*/
private String USERID;
private String USERNAME;
private String USERPWD;
private String CREATETIME;
/**
* encapsulation
*/
public String getUSERID() {
return USERID;
}
public void setUSERID(String uSERID) {
USERID = uSERID;
}
public String getUSERNAME() {
return USERNAME;
}
public void setUSERNAME(String uSERNAME) {
USERNAME = uSERNAME;
}
public String getUSERPWD() {
return USERPWD;
}
public void setUSERPWD(String uSERPWD) {
USERPWD = uSERPWD;
}
public String getCREATETIME() {
return CREATETIME;
}
public void setCREATETIME(String cREATETIME) {
CREATETIME = cREATETIME;
}

@Override
public String toString() {
return "FRAME_USER [USERID=" + USERID + ", USERNAME=" + USERNAME
+ ", USERPWD=" + USERPWD + ", CREATETIME=" + CREATETIME + "]";
}

}

3.3创建映射文件

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE mapper PUBLIC "-//mybatis.org/DTD Mapper 3.0" "http://mybatis.org/dtd/mybatis-3-mapper.dtd">

<mapper namespace="com.frame.user.dao.UserDao">

<resultMap id="frame_user_result" type="com.frame.user.entity.FRAME_USER">
<id property="USERID" column="USERID"/>
<result property="USERNAME" column="USERNAME"/>
<result property="USERPWD" column="USERPWD"/>
<result property="CREATETIME" column="CREATETIME"/>
</resultMap>

<insert id="insertFrameUser" parameterType="alias_frame_user">
<![CDATA[
insert into frame_user (USERID,USERNAME,USERPWD,CREATETIME)
values
(#{USERID},#{USERNAME},#{USERPWD},#{CREATETIME})
]]>
</insert>

<select id="getFrameUser" resultMap="frame_user_result">
select * from frame_user  where USERID = #{USERID}
</select>

<update id="updateFrameUser" parameterType="alias_frame_user" >
update 	frame_user set USERNAME=#{USERNAME},USERPWD=#{USERPWD}
where USERID=#{USERID}
</update>

<delete id="deleteFrameUser" parameterType="alias_frame_user">
delete from frame_user where USERID=#{USERID}
</delete>

<select id="findFrameUserList" parameterType="alias_frame_user" resultMap="frame_user_result">
select * from frame_user
where 1=1
<if test="USERNAME != null and USERNAME !='' ">
and USERNAME=#{USERNAME}
</if>
<if test="USERPWD !=null and USERPWD !='' ">
and USERPWD=#{USERPWD}
</if>
<if test="USERID !=null and USERID !='' ">
and USERID=#{USERID}
</if>

</select>

</mapper>

3.4创建dao层

package com.frame.user.dao;

import java.util.List;

import com.frame.user.entity.FRAME_USER;

public interface UserDao {
//新增用户
public int insertFrameUser(FRAME_USER user);
//查询
public FRAME_USER getFrameUser(FRAME_USER user);
//修改用户
public int updateFrameUser(FRAME_USER user);
//删除用户
public int deleteFrameUser(FRAME_USER user);
//获取集合
public List<FRAME_USER> findFrameUserList(FRAME_USER user);

}

3.5创建测试类

package com.frame.user.test;

import java.io.IOException;
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.frame.user.dao.UserDao;
import com.frame.user.entity.FRAME_USER;

public class Test {
public static void main(String[] args) {
String resource = "mybatis-config.xml";
InputStream inputStream=null;
try {
inputStream = Resources.getResourceAsStream(resource);
SqlSessionFactory sqlSessionFactory = new SqlSessionFactoryBuilder().build(inputStream);
SqlSession session= sqlSessionFactory.openSession();

UserDao dao=session.getMapper(UserDao.class);
//增加
//			FRAME_USER user = new FRAME_USER();
//				user.setUSERID("6");
//				user.setUSERNAME("巴德");
//				user.setUSERPWD("1321");
//			dao.insertFrameUser(user);
//			session.commit();

//查询
//			FRAME_USER user2 = new FRAME_USER();
//				user2.setUSERID("6");
//			user2=dao.getFrameUser(user2);
//			System.out.println(user2);

//修改
//			FRAME_USER user3 = new FRAME_USER();
//				user3.setUSERID("6");
//				user3.setUSERNAME("卡巴斯基");
//				user3.setUSERPWD("6666");
//				dao.updateFrameUser(user3);
//				session.commit();

//删除
//			FRAME_USER user4 = new FRAME_USER();
//				user4.setUSERID("6");
//				int result= dao.deleteFrameUser(user4);
//				System.out.println("excute 状态:"+result);
//				session.commit();

//获取集合
FRAME_USER user5 = new FRAME_USER();
user5.setUSERPWD("123");
List<FRAME_USER> list=	dao.findFrameUserList(user5);
System.out.println("获取集合:"+list.get(0));

} catch (IOException e) {
e.printStackTrace();
}

}
}

3.6yunxingjieguo



源码地址:http://pan.baidu.com/s/1hrTtxWC