今天这个是mybatis与spring的整合

今天这个是mybatis与spring的整合

依旧是一个查询的demo

首先是demo的结构

然后是我的jdbc.properties

jdbc.driverClassName=com.mysql.jdbc.Driver
jdbc.url=jdbc:mysql:///test?createDatabaseIfNotExist=true&useUnicode=true&characterEncoding=utf8&autoReconnect=true&failOverReadOnly=false
jdbc.username=root
jdbc.password=root

与我的实体

package com.fei.model;

/**
 * Created by fei on 2015/9/8.
 */
public class User {
    private Integer id;
    private String name;
    private String password;
    private Integer age;



    public User(String name, String password, int age) {
        this.name=name;
        this.password=password;
        this.age=age;
    }

    public User() {

    }

    public Integer getId() {
        return id;
    }

    public void setId(Integer id) {
        this.id = id;
    }

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

    public String getPassword() {
        return password;
    }

    public void setPassword(String password) {
        this.password = password;
    }

    public Integer getAge() {
        return age;
    }

    public void setAge(Integer age) {
        this.age = age;
    }

    @Override
    public String toString(){
        return "User[id="+id+" , name="+name+" , password="+password+"]";
    }
}

这个数据库就自己弄了哈

下面是两个配置文件，分别是mybatis的与spring的，网上的整合方式有三种，我这个就做了一种

mybatis-conf.xml是这个样子的

<configuration>
    <mappers>
        <mapper resource="mapper/userMapper.xml"/>
    mappers>
configuration>

spring是这个样子的

<beans xmlns="http://www.springframework.org/schema/beans" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
       xmlns:p="http://www.springframework.org/schema/p" xmlns:context="http://www.springframework.org/schema/context"
       xmlns:jee="http://www.springframework.org/schema/jee" xmlns:tx="http://www.springframework.org/schema/tx"
       xmlns:aop="http://www.springframework.org/schema/aop"
       xsi:schemaLocation="
            http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
            http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.0.xsd
            http://www.springframework.org/schema/jee http://www.springframework.org/schema/jee/spring-jee-3.0.xsd
            http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-3.0.xsd
            http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-3.0.xsd">

    <context:property-placeholder location="classpath:jdbc.properties"/>
    <bean id="jdbcDataSource" class="org.apache.commons.dbcp.BasicDataSource" destroy-method="close"
          p:driverClassName="${jdbc.driverClassName}"
          p:url="${jdbc.url}" p:username="${jdbc.username}" p:password="${jdbc.password}">bean>
    
    <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
        <property name="dataSource" ref="jdbcDataSource"/>
        <property name="configLocation" value="classpath:mybatis-config.xml">property>
    bean>
    <bean id="userDao" class="org.mybatis.spring.mapper.MapperFactoryBean">
        <property name="mapperInterface" value="com.fei.dao.UserDao">property>
        <property name="sqlSessionFactory" ref="sqlSessionFactory">property>
    bean>
beans>

不要说看不懂这个，这里只剩下需要的了

下面就是mybatis的mapper
usermapper.xml

<mapper namespace="com.fei.dao.UserDao">
    <select id="getUser" parameterType="com.fei.model.User" resultType="com.fei.model.User">
    SELECT * FROM user WHERE name=#{name} AND password=#{password}
    select>
    <select id="getUserById" parameterType="com.fei.model.User" resultType="com.fei.model.User">
        SELECT * FROM  user WHERE id=#{id}
    select>
    <insert id="addUser" parameterType="com.fei.model.User" flushCache="true">
        INSERT INTO user (name,password,age) VALUES (#{name},${password},#{age})
    insert>
mapper>

接下来是dao了

package com.fei.dao;

import com.fei.model.User;

/**
 * Created by fei on 2015/9/8.
 */
public interface UserDao {
    public User getUser(User user);
    public User getUserById(Integer id);
    public void addUser(User user);
/*
    public void updateUser(User user);
    public void deleteUser(int UserId);*/
}

这里就把程序搭建好了（没有web部分，这个就是mybatis与spring的整合而已，springmvc再说）

执行main

package com.fei.test;

import com.fei.dao.UserDao;
import com.fei.model.User;
import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;

/**
 * Created by fei on 2015/9/8.
 */
public class Main {
    public static void main(String[] args) {
        ApplicationContext ctx=null;
        ctx=new ClassPathXmlApplicationContext("application.xml");
        UserDao userDao=(UserDao) ctx.getBean("userDao");
/*        User user=new User("test","1234",12);
        userDao.addUser(user);*/
        User user=new User();
        user.setName("test");
        user.setPassword("1234");
        User newUser=userDao.getUser(user);
        System.out.println(newUser.toString());
    }
}

对，就是这样，简单吧
此处有demo 15kb哦，绝对可用