spring+mybatis 框架搭建

注意<!-- 中间的字要保持与左右留出一个空格，否则会报错说出现两杠线 -->

1.导入jar包

aopalliance-1.0.jar
asm-3.3.1.jar
cglib-2.2.2.jar
com.springsource.org.aspectj.weaver-1.6.8.RELEASE.jar
commons-logging-1.1.1.jar
javassist-3.17.1-GA.jar
junit-4.9.jar
log4j-1.2.17.jar
mybatis-3.0.3.jar
mybatis-3.2.2.jar
mybatis-spring-1.0.0-RC3.jar
mysql-connector-java-5.1.10-bin.jar
slf4j-api-1.7.5.jar
slf4j-log4j12-1.7.5.jar
spring-aop-3.0.5.RELEASE.jar
spring-asm-3.0.5.RELEASE.jar
spring-beans-3.0.5.RELEASE.jar
spring-context-3.0.5.RELEASE.jar
spring-core-3.0.5.RELEASE.jar
spring-expression-3.0.5.RELEASE.jar
spring-jdbc-3.0.5.RELEASE.jar
spring-tx-3.0.5.RELEASE.jar

2.写

src

----cn.itcast.mybatis.damain

　　　　　　　　　　User.java

　　　　　　　　　　User.xml

----cn.itcast.mybatis.dao

　　　　　　　　　　IUserDao.java

　　　　　　　　　　UserDaoImpl.java

----cn.itcast.mybatis.service

　　　　　　　　　　IUserService

　　　　　　　　　　UserServiceImpl

----spring-beans.xml

----sqlMapConfig.xml

User.java

 1 package cn.itcast.mybatis.domain;
 2 
 3 public class User {
 4     private String id;
 5     private String name;
 6     private Integer age;
 7     private String address;
 8     public String getAddress() {
 9         return address;
10     }
11     public void setAddress(String address) {
12         this.address = address;
13     }
14     public String getId() {
15         return id;
16     }
17     public void setId(String id) {
18         this.id = id;
19     }
20     public String getName() {
21         return name;
22     }
23     public void setName(String name) {
24         this.name = name;
25     }
26     public Integer getAge() {
27         return age;
28     }
29     public void setAge(Integer age) {
30         this.age = age;
31     }
32     @Override
33     public String toString() {
34         return "User [id=" + id + ", name=" + name + ", age=" + age + "]";
35     }
36     
37 }
View Code

User.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 
 6 <mapper namespace="cn.itcast.mybatis.domain.User">
 7     <sql id="cols">
 8         id,name,age,address
 9     </sql>
10     <sql id="ucols">
11         name=#{name},age=#{age},address=#{address}
12     </sql>
13 
14     <!-- 查询所有记录 -->
15     <select id="listAll" resultType="aliasesUser">
16         select <include refid="cols"/> from user_c
17     </select>
18     
19     <!-- 按条件查询 -->
20     <select id="find" parameterType="aliasesUser" resultType="aliasesUser">
21         select * from user_c 
22         <where>
23         <if test="name!=null">
24             and name like "%"#{name}"%"
25         </if>
26         <if test="age!=null">
27             and age=#{age}
28         </if>
29         </where>
30     </select>
31     
32     <!-- 查询一个用户 -->
33     <select id="get" parameterType="string" resultType="aliasesUser">
34         select <include refid="cols"/> from user_c where id=#{id}
35     </select>
36     
37     <!-- 新增 -->
38     <insert id="create" parameterType="aliasesUser">
39         insert into user_c (id,name,age,address) values(#{id},#{name},#{age},#{address})
40     </insert>
41     
42     <!-- 修改 -->
43     <update id="update" parameterType="aliasesUser">
44         update user_c
45          <set>
46              <if test="name!=null">
47                  name=#{name},
48              </if>
49              <if test="age!=null">
50                  age=#{age},
51              </if>
52              <if test="address!=null">
53                  address=#{address},
54              </if>
55          </set>
56          
57         where id=#{id}
58     </update>
59     
60     <!-- 删除 -->
61     <delete id="delete" parameterType="string">
62         delete from user_c where id=#{id}
63     </delete>
64 </mapper>

IUserDao.java

 1 package cn.itcast.mybatis.dao;
 2 
 3 import java.util.List;
 4 
 5 import cn.itcast.mybatis.domain.User;
 6 
 7 
 8 public interface IUserDao {
 9     public List<User> list();
10     public User get(String id);
11     public int insert(User u);
12     public int update(User u);
13     public int deleteById(String id);
14 }
View Code

UserDaoImpl.java

 1 package cn.itcast.mybatis.dao;
 2 
 3 import java.util.List;
 4 
 5 import org.mybatis.spring.support.SqlSessionDaoSupport;
 6 
 7 import cn.itcast.mybatis.domain.User;
 8 
 9 public class UserDaoImpl extends SqlSessionDaoSupport implements IUserDao {
10     
11     //删除
12     public int deleteById(String id) {
13         return this.getSqlSession().delete("cn.itcast.mybatis.domain.User.deleteOne",id);
14     }
15 
16     //新增
17     public int insert(User u) {
18         return this.getSqlSession().insert("cn.itcast.mybatis.domain.User.create", u);
19     }
20 
21     //列表
22     public List<User> list() {
23         return this.getSqlSession().selectList("cn.itcast.mybatis.domain.User.listAll");
24     }
25 
26     //修改
27     public int update(User u) {
28         return this.getSqlSession().update("cn.itcast.mybatis.domain.User.update",u);
29     }
30 
31     //获取对象
32     public User get(String id) {
33         return (User) this.getSqlSession().selectOne("cn.itcast.mybatis.domain.User.get", id);
34     }
35 
36 }

UserServiceDao.java

 1 package cn.itcast.mybatis.service;
 2 
 3 import java.util.List;
 4 
 5 import cn.itcast.mybatis.domain.User;
 6 
 7 
 8 public interface IUserService {
 9     public List<User> list();
10     public User get(String id);
11     public int insert(User u);
12     public int update(User u);
13     public int deleteById(String id);
14 }
View Code

UserServiceDaoImpl.java

 1 package cn.itcast.mybatis.service;
 2 
 3 import java.util.List;
 4 
 5 import cn.itcast.mybatis.dao.IUserDao;
 6 import cn.itcast.mybatis.domain.User;
 7 
 8 public class UserServiceImpl implements IUserService {
 9 
10     private IUserDao userDao;
11     public void setUserDao(IUserDao userDao) {
12         this.userDao = userDao;
13     }
14 
15     public int deleteById(String id) {
16         int i = userDao.deleteById(id);
17                 //测试事务
18         int j = 1/0;
19         return i;
20     }
21 
22     public User get(String id) {
23         return userDao.get(id);
24     }
25 
26     public int insert(User u) {
27         return userDao.insert(u);
28     }
29 
30     public List<User> list() {
31         return userDao.list();
32     }
33 
34     public int update(User u) {
35         return userDao.update(u);
36     }
37 
38 }
39

重头

sqlMapConfig.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    <typeAliases>
 8         <typeAlias type="cn.itcast.mybatis.domain.User" alias="aliasesUser"></typeAlias>
 9     </typeAliases>
10  <environments default="development">
11         
12         <environment id="development">
13             <transactionManager type="JDBC"/>
14             <dataSource type="POOLED">
15                 <property name="driver" value="com.mysql.jdbc.Driver"/>
16                 <property name="url" value="jdbc:mysql://localhost:3306/mybatisdb?characterEncoding=UTF-8"/>
17                 <property name="username" value="root"/>
18                 <property name="password" value="friends"/>
19             </dataSource>
20         </environment>
21 <!--         产品    可用于多个配置的 -->
22         <environment id="product">
23             <transactionManager type="JDBC"/>
24             <dataSource type="POOLED">
25                 <property name="driver" value="com.mysql.jdbc.Driver"/>
26                 <property name="url" value="jdbc:mysql://localhost:3306/mybatisdb?characterEncoding=UTF-8"/>
27                 <property name="username" value="root"/>
28                 <property name="password" value="friends"/>
29             </dataSource>
30         </environment>
31     </environments>
32     <mappers>
33         <mapper resource="cn/itcast/mybatis/domain/User.xml"/>
34     </mappers>
35 </configuration>

spring-beans.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"
 4     xmlns:context="http://www.springframework.org/schema/context"
 5     xmlns:aop="http://www.springframework.org/schema/aop"
 6     xmlns:tx="http://www.springframework.org/schema/tx"
 7     xsi:schemaLocation="http://www.springframework.org/schema/beans 
 8                          http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
 9                          http://www.springframework.org/schema/context
10                          http://www.springframework.org/schema/context/spring-context-3.0.xsd
11                          http://www.springframework.org/schema/tx
12                          http://www.springframework.org/schema/tx/spring-tx-3.0.xsd
13                          http://www.springframework.org/schema/aop 
14                          http://www.springframework.org/schema/aop/spring-aop-3.0.xsd">
15     
16     <!-- 数据源 -->
17     <bean id="dataSource" class="org.springframework.jdbc.datasource.DriverManagerDataSource">
18         <property name="driverClassName" value="com.mysql.jdbc.Driver"></property>
19         <property name="url" value="jdbc:mysql://localhost/mybatisdb?characterEncoding=utf-8"></property>
20         <property name="username" value="root"></property>
21         <property name="password" value="friends"></property>
22     </bean>
23     
24     <bean id="sessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
25         <property name="configLocation" value="classpath:sqlMapConfig.xml"></property>
26         <property name="dataSource" ref="dataSource"></property>
27 
28     </bean>
29     
30     <!-- 事务相关控制 -->
31     <bean name="transactionManager"
32         class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
33         <property name="dataSource" ref="dataSource"/>
34     </bean>
35 
36     <!-- 通知 -->
37     <tx:advice id="tx"
38         transaction-manager="transactionManager">
39         <tx:attributes>
40             <tx:method name="delete*" propagation="REQUIRED" />
41             <tx:method name="insert*" propagation="REQUIRED" />
42             <tx:method name="update*" propagation="REQUIRED" />
43             <tx:method name="find*" read-only="true" />
44             <tx:method name="get*" read-only="true" />
45             <tx:method name="select*" read-only="true" />
46         </tx:attributes>
47     </tx:advice>
48 
49     <aop:config>
50         <aop:pointcut id="pc" expression="execution(* cn.itcast.mybatis.service.*.*(..))" />
51         <!--把事务控制在Service层-->
52         <aop:advisor pointcut-ref="pc" advice-ref="tx" />
53     </aop:config>
54     
55     <bean id="userDao" class="cn.itcast.mybatis.dao.UserDaoImpl">
56         <property name="sqlSessionFactory" ref="sessionFactory"></property>
57     </bean>
58     
59     <bean id="userService" class="cn.itcast.mybatis.service.UserServiceImpl">
60         <property name="userDao" ref="userDao"></property>
61     </bean>
62 </beans>

测试

 1 package test;
 2 
 3 import java.util.List;
 4 
 5 import org.junit.Test;
 6 import org.springframework.context.ApplicationContext;
 7 import org.springframework.context.support.ClassPathXmlApplicationContext;
 8 
 9 import cn.itcast.mybatis.domain.User;
10 import cn.itcast.mybatis.service.IUserService;
11 
12 public class TestSpringMybatis {
13 
14     @Test
15     public void test(){
16         ApplicationContext ac = new ClassPathXmlApplicationContext("spring-beans.xml");
17         IUserService us = (IUserService) ac.getBean("userService");
18         List<User> users = us.list();
19         System.out.println(users.size());
20     }
21     
22     @Test
23     public void testDelete(){
24         ApplicationContext ac = new ClassPathXmlApplicationContext("spring-beans.xml");
25         IUserService us = (IUserService) ac.getBean("userService");
26         us.deleteById("1");
27     }
28     
29 }
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原文地址：https://www.cnblogs.com/friends-wf/p/3799718.html