mybatis+spring整合入门案例

com.frank.domain

　　User.java

 1 package com.frank.domain;

 2 

 3 public class User {

 4     private Integer id;

 5     private String name;

 6     private Integer age;

 7     public Integer getId() {

 8         return id;

 9     }

10     public void setId(Integer id) {

11         this.id = id;

12     }

13     public String getName() {

14         return name;

15     }

16     public void setName(String name) {

17         this.name = name;

18     }

19     public Integer getAge() {

20         return age;

21     }

22     public void setAge(Integer age) {

23         this.age = age;

24     }

25     public User(Integer id, String name, Integer age) {

26         super();

27         this.id = id;

28         this.name = name;

29         this.age = age;

30     }

31     public User() {

32         super();

33     }

34     @Override

35     public String toString() {

36         return "User [id=" + id + ", name=" + name + ", age="

37                 + age + "]";

38     }

39     

40 

41 }

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com.frank.mapper

　　UserMapper.java

 1 package com.frank.mapper;

 2 

 3 import java.util.List;

 4 

 5 import com.frank.domain.User;

 6 

 7 public interface UserMapper {

 8 

 9     public void addUser(User user);

10 

11     public void delUser(Integer id);

12     

13     public User findById(Integer id);

14     

15     public List<User> findAll();

16     

17     public void updateUser(User user);

18 

19 

20 }

View Code

　　UserMapper.xml

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

 2 <!DOCTYPE mapper

 3 PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"

 4 "http://mybatis.org/dtd/mybatis-3-mapper.dtd">

 5 <mapper namespace="com.frank.mapper.UserMapper">

 6     

 7     <resultMap type="User" id="userResult">

 8         <result column="user_id" property="id"/>

 9         <result column="user_name" property="name"/>

10         <result column="user_age" property="age"/>

11     </resultMap>

12     

13     <insert id="addUser" parameterType ="User">

14         insert into s_user(user_name,user_age) values(#{name},#{age})

15     </insert>

16     

17     <delete id="delUser" parameterType="int">

18         delete from s_user where user_id=#{id}

19     </delete>

20 

21     <select id="findById" parameterType="int" resultMap="userResult">

22         select * from s_user where user_id=#{id}

23     </select>

24     

25     <select id="findAll" resultMap="userResult">

26         select *  from s_user

27     </select>

28     

29     <update id="updateUser" parameterType="User">

30         update s_user set user_name=#{name},user_age=#{age} where user_id=#{id}

31     </update>

32 

33 

34 </mapper>

View Code

com.frank.test

　　Test_mybatis.java

 1 package com.frank.test;

 2 

 3 import java.util.List;

 4 

 5 import org.junit.Test;

 6 import org.junit.runner.RunWith;

 7 import org.springframework.beans.factory.annotation.Autowired;

 8 import org.springframework.test.context.ContextConfiguration;

 9 import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;

10 

11 import com.frank.domain.User;

12 import com.frank.mapper.UserMapper;

13 

14 

15 @RunWith(SpringJUnit4ClassRunner.class)

16 @ContextConfiguration("/applicationContext.xml")

17 public class Test_mybatis {

18     

19     @Autowired

20     private UserMapper userMapper;

21     @Test

22     public void testInsert(){

23         User user=new User(null, "frank", 15);

24         userMapper.addUser(user);

25         

26     }

27     @Test

28     public void testDel(){

29         userMapper.delUser(5);

30     }

31     

32     @Test

33     public void testFindById(){

34         User u = userMapper.findById(2);

35         System.out.println(u);

36     }

37     @Test

38     public void testFindAll(){

39         List<User> list=userMapper.findAll();

40         System.out.println(list);

41     }

42     

43 

44 }

View Code

applicationContext.xml

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

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

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

 4     xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.1.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx.xsd"

 5     xmlns:tx="http://www.springframework.org/schema/tx">

 6 

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

 8         <property name="driverClassName" value="com.mysql.jdbc.Driver">

 9         </property>

10         <property name="url" value="jdbc:mysql://127.0.0.1:3306/mybatis">

11         </property>

12         <property name="username" value="root"></property>

13         <property name="password" value="frank1994"></property>

14     </bean>

15     

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

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

18         <property name="typeAliasesPackage" value="com.frank.domain"></property>

19     </bean>

20     

21     <!-- mybatis自动扫描，加载映射文件 -->

22     <bean  class="org.mybatis.spring.mapper.MapperScannerConfigurer">

23         <property name="basePackage" value="com.frank.mapper"></property>        

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

25      </bean>

26      

27      <bean id="txManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">

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

29      </bean>

30      

31      <tx:annotation-driven transaction-manager="txManager" />

32 

33 </beans>

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mybatis-config.xml

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

2 <!DOCTYPE configuration

3 PUBLIC "-//mybatis.org//DTD Config 3.0//EN"

4 "http://mybatis.org/dtd/mybatis-3-config.dtd">

5 <configuration>

6     

7 </configuration>

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