spring3+mybatis3+mysql

玩了一下mybatis，网上源码说的不太清楚。自己写了一下。希望对大家有用(spring3+mybatis3+mysql)

实体类:

package org.my.entity;

public class User {

    private Integer id;

    private String name;

    private Integer age;

    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 Integer getAge() {

        return age;

    }

    public void setAge(Integer age) {

        this.age = age;

    }

}

mapper:

package org.my.maper;

import org.apache.ibatis.annotations.Param;

import org.apache.ibatis.annotations.Select;

import org.my.entity.User;
public interface UserMapper {

    public void insertUser(User user);

    @Select("SELECT * FROM user WHERE id = #{id}")

    public User getUser(@Param("id")Integer id);

}

dao:

package org.my.dao;

import org.my.entity.User;
public interface UserDao {

    public User getUserById(User user);

}

impl(dao实现):

package org.my.impl;

import org.my.dao.UserDao;

import org.my.entity.User;

import org.my.maper.UserMapper;
public class UserDaoImpl implements UserDao {

    private UserMapper userMapper;

    public void setUserMapper(UserMapper userMapper) {

        this.userMapper = userMapper;

    }

    @Override

    public User getUserById(User user) {

        return userMapper.getUser(user.getId());

    }
}

test测试类:

package org.my;

import org.my.dao.UserDao;

import org.my.entity.User;

import org.my.impl.UserDaoImpl;

import org.springframework.context.ApplicationContext;

import org.springframework.context.support.ClassPathXmlApplicationContext;
public class Test {

    public static void main(String[] args) {

        ApplicationContext ctx = new ClassPathXmlApplicationContext(

        "beans.xml");

        UserDao userDao = (UserDaoImpl)ctx.getBean("userDaoImpl");

        User user = new User();

        user.setId(1);

        User u = userDao.getUserById(user);

        System.out.println(u.getName());

    }
}

beans.xml:

<?xml version="1.0" encoding="UTF-8"?>

<beans xmlns="http://www.springframework.org/schema/beans"

    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:context="http://www.springframework.org/schema/context"

    xsi:schemaLocation="http://www.springframework.org/schema/beans

                    http://www.springframework.org/schema/beans/spring-beans-2.5.xsd

                    http://www.springframework.org/schema/context

                    http://www.springframework.org/schema/context/spring-context-2.5.xsd

                    ">

<context:property-placeholder location="jdbc.properties" />

    <bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource">

        <property name="driverClassName" value="${driver}" />

        <property name="url" value="${url}" />

        <property name="username" value="${username}" />

        <property name="password" value="${password}" />

    </bean>

    <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">

        <property name="dataSource" ref="dataSource" />

    </bean>

    <bean id="userMapper" class="org.mybatis.spring.mapper.MapperFactoryBean">

        <property name="mapperInterface" value="org.my.maper.UserMapper" />

        <property name="sqlSessionFactory" ref="sqlSessionFactory" />

    </bean>

    <bean id="userDaoImpl" class="org.my.impl.UserDaoImpl">

        <property name="userMapper" ref="userMapper" />

    </bean>
</beans>

jdbc.proerties:

driver=com.mysql.jdbc.Driver

username=root

password=root

url=jdbc\:mysql\://localhost\:3306/test

  

接下来是项目截图:

jar包:

希望大家按照这个配置，能成功配置好

spring3+mybatis3+mysql