Mybatis学习之与Spring整合

bean对象定义：

package com.mybatis.bean;

public class Person {

private int id;

private String name;

private int age;

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 int getAge() {
return age;
}

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

}

　　mappper接口，通过注解方式定义SQL语句

package com.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.mybatis.bean.Person;

public interface PersonDAO {

@Insert("insert into person(name,age) values(#{name},#{age})")
public void add(Person person);

@Delete("delete from person where id=#{id}")
public void delete(int id);

@Select("select * from person where id=#{id}")
public Person queryById(int id);

@Select("select * from person")
public List<Person> findAll();

@Update("update person set name=#{name},age=#{age} where id=#{id}")
public void update(Person person);

}

　　mybatis-config.xml配置，数据源配置转到Spring文件中，此处只声明mapper，class属性指向mapper接口

<?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>
<mappers>
<mapper class="com.mybatis.inter.PersonDAO"/>
</mappers>
</configuration>

　　数据库属性文件定义persistence.properties

driverClassName=com.mysql.jdbc.Driver
url=jdbc:mysql://127.0.0.1:3306/test
username=root
password=root

　　Spring配置文件

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:context="http://www.springframework.org/schema/context"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:tx="http://www.springframework.org/schema/tx"
xmlns:aop="http://www.springframework.org/schema/aop"
xmlns:util="http://www.springframework.org/schema/util"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx.xsd http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop.xsd http://www.springframework.org/schema/util http://www.springframework.org/schema/util/spring-util.xsd"> <bean class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">
<property name="locations">
<list>
<value>classpath:persistence.properties</value>
</list>
</property>
</bean>

<bean id="jdbcDataSource" class="org.springframework.jdbc.datasource.DriverManagerDataSource">
<property name="driverClassName" value="${driverClassName}" />
<property name="url" value="${url}" />
<property name="username" value="${username}" />
<property name="password" value="${password}" />
</bean>

<bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
<property name="dataSource" ref="jdbcDataSource" />
<property name="configLocation" value="classpath:mybatis-config.xml" />
</bean>

<bean id="personDAO" class="org.mybatis.spring.mapper.MapperFactoryBean">
<property name="mapperInterface" value="com.mybatis.inter.PersonDAO" />
<property name="sqlSessionFactory" ref="sqlSessionFactory" />
</bean>
</beans>

　　测试：

package com.mybatis.test;

import java.util.List;

import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;

import com.mybatis.bean.Person;
import com.mybatis.inter.PersonDAO;

public class Test1 {
@SuppressWarnings("resource")
public static void main(String[] args) {
ApplicationContext context=null;
context=new ClassPathXmlApplicationContext("applicationContext.xml");
PersonDAO personDAO = (PersonDAO) context.getBean("personDAO");
System.out.println("====================test==========================");
//		Person person=new Person();
//		person.setName("aaa");
//		person.setAge(12);
//		personDAO.add(person);
List<Person> list = personDAO.findAll();
for(Person person:list) {
System.err.println(person.getName()+" "+person.getAge());
}
}

}

　工程截图：