spring+mybatis 整合

项目目录：

一、导入pom.xml依赖 最下边有

二、在applicationContext.xml配置连接器和数据库的数据源

三、流程：用户请求数据，springmvc解析url，通过控制器和适配器 找到对应的Controller （UserController），通过自动注入的userService找到里面的hello方法，在查询出结果return值回到userController，

　　　　在通过model.addAttribute向页面传参，最后return到页面中。

四、这是测试类的加载配置文件和自动注入（UserDAOTest）来测试更加方便

配置事务：

web.xml:

 <?xml version="1.0" encoding="UTF-8"?>
 <web-app xmlns="http://java.sun.com/xml/ns/javaee"
          xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
          xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd"
          version="3.0">
     <!-- 加载applicationContext.xml配置文件 -->
     <context-param>
         <param-name>contextConfigLocation</param-name>
         <param-value>classpath:applicationContext.xml</param-value>
     </context-param>
     <!-- 设置编码为UTF-8 -->
     <filter>
         <description>字符集过滤器</description>
         <filter-name>encodingFilter</filter-name>
         <filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class>
         <init-param>
             <description>字符集编码</description>
             <param-name>encoding</param-name>
             <param-value>UTF-8</param-value>
         </init-param>
     </filter>
     <filter-mapping>
         <filter-name>encodingFilter</filter-name>
         <url-pattern>/*</url-pattern>
     </filter-mapping>

     <!-- spring监听器 -->
     <listener>
         <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
     </listener>

     <listener>
         <listener-class>org.springframework.web.context.request.RequestContextListener</listener-class>
     </listener>

     <!-- 配置Servlet -->
     <servlet>
         <servlet-name>springmvc1</servlet-name>
         <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
         <init-param>
             <param-name>contextConfigLocation</param-name>
             <param-value>classpath:springmvc.xml</param-value>
         </init-param>
         <load-on-startup>1</load-on-startup>
     </servlet>

     <servlet-mapping>
         <servlet-name>springmvc1</servlet-name>
         <url-pattern>*.do</url-pattern>
     </servlet-mapping>

     <!-- 程序加载时的页面 -->
     <welcome-file-list>
         <welcome-file>/index.jsp</welcome-file>
     </welcome-file-list>

 </web-app>

springmvc.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"
        xmlns:mvc="http://www.springframework.org/schema/mvc"
        xsi:schemaLocation="http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-3.2.xsd
         http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.2.xsd
         http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.2.xsd">

     <!-- 自动扫描controller包下的所有类，使其认为spring mvc的控制器 -->
     <context:component-scan base-package="com.xf"/>
     <mvc:annotation-driven/>

     <!-- 逻辑视图与物理视图的映射 -->
     <bean
             class="org.springframework.web.servlet.view.InternalResourceViewResolver">
         <property name="prefix" value="/WEB-INF/user/"></property>
         <property name="suffix" value=".jsp"></property>
     </bean>

 </beans>

applicationContext.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"
        xmlns:aop="http://www.springframework.org/schema/aop" xmlns:tx="http://www.springframework.org/schema/tx"
        xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd http://www.springframework.org/schema/context https://www.springframework.org/schema/context/spring-context.xsd http://www.springframework.org/schema/aop https://www.springframework.org/schema/aop/spring-aop.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx.xsd">

     <!--<context:annotation-config></context:annotation-config>-->

     <!-- 注解注入-->
     <context:component-scan base-package="com">
         <context:exclude-filter type="annotation" expression="org.springframework.stereotype.Controller"></context:exclude-filter>
     </context:component-scan>

     <!--导入jdbc.properties文件 -->
     <context:property-placeholder location="classpath:mysql.properties"
                                   ignore-unresolvable="true"/>

     <!--配置mysql数据源 -->
     <bean id="dataSource"
           class="org.springframework.jdbc.datasource.DriverManagerDataSource">
         <property name="driverClassName">
             <value>${mysql.driverClassName}</value>
         </property>
         <property name="url">
             <value>${mysql.url}
             </value>
         </property>
         <property name="username">
             <value>${mysql.username}</value>
         </property>
         <property name="password">
             <value>${mysql.password}</value>
         </property>
     </bean>

     <!-- myBatis文件 -->
     <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
         <property name="dataSource" ref="dataSource"/>
         <!-- 加载mybatis-config配置文件，里面设置别名 -->
         <!-- <property name="configLocation" value="/WEB-INF/mybatis-config.xml"/>-->
         <!-- 自动扫描entity目录, 省掉Configuration.xml里的手工配置,并且可以扫描实体中的别名注解 -->
         <property name="typeAliasesPackage" value="com.etc.entity"/>
         <!-- 自动扫描xml目录, 扫描DAO.xml-->
         <property name="mapperLocations" value="classpath*:*DAO.xml"/>
     </bean>

     <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
         <!-- 自动扫描dao目录, 扫描interface -->
         <property name="basePackage" value="com.etc.dao"/>
         <property name="sqlSessionFactoryBeanName" value="sqlSessionFactory"/>
         <!--<property name="annotationClass" value="com.xf.dao.MyBatisRepository"/>-->
     </bean>

     <!--事务 -->
     <aop:config>
         <aop:pointcut id="transactionPointcut" expression="execution(* com.etc.servise.*.*(..))"/>
         <aop:advisor pointcut-ref="transactionPointcut"
                      advice-ref="transactionAdvice"/>
     </aop:config>

     <!-- 注解方式配置事物 -->
     <!-- <tx:annotation-driven transaction-manager="transactionManager" /> -->
     <!-- 拦截器方式配置事物 -->

     <tx:advice id="transactionAdvice" transaction-manager="transactionManager">
         <tx:attributes>
             <tx:method name="*" propagation="REQUIRED"/>
         </tx:attributes>
     </tx:advice>

     <!-- 配置事务管理器 -->
     <bean id="transactionManager"
           class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
         <property name="dataSource" ref="dataSource"/>
     </bean>
 </beans>

com/etc/dao/UserDAO.xml：

 <?xml version="1.0" encoding="UTF-8" ?>
 <!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd" >
 <mapper namespace="com.etc.dao.UserDAO">
     <select id="queryById" resultType="user">
         select * from t_user where id=#{id}
     </select>

     <insert id="save">
         insert into t_user(name) values(#{name})
     </insert>
 </mapper>

com.etc.servise.UserService：

 package com.etc.servise;

 import com.etc.dao.UserDAO;
 import com.etc.entity.User;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.stereotype.Service;

 @Service
 public class UserService {

     @Autowired
     private UserDAO userDAO;

     public User hello(int id){
         System.out.println("Hello spring!");
         User user = userDAO.queryById(id);

         User user1=new User();
         user1.setName("123");
         userDAO.save(user1);

         User user2=new User();
         user2.setName("123");
         userDAO.save(user2);

         return user;
     }
 }

com.etc.controller.UserController：

 package com.etc.controller;

 import com.etc.entity.User;
 import com.etc.servise.UserService;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.stereotype.Controller;
 import org.springframework.ui.Model;
 import org.springframework.web.bind.annotation.RequestMapping;

 @Controller
 public class UserController {

     @Autowired
     private UserService userService;

     @RequestMapping("/hello")
     public String hello(int id, Model model){
         System.out.println("Hello Springmvc");
         User user = userService.hello(id);
         System.out.println(user);
         model.addAttribute("user", user);
         return "hello";
     }
 }

com.etc.dao.UserDAOTest：

 package com.etc.dao;

 import com.etc.entity.User;
 import org.junit.Test;
 import org.junit.runner.RunWith;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.test.context.ContextConfiguration;
 import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;

 @RunWith(SpringJUnit4ClassRunner.class)
 @ContextConfiguration(locations = "classpath:applicationContext.xml")
 public class UserDAOTest {

     @Autowired
     private UserDAO userDAO;

     @Test
     public void testQueryById(){
         //测试驱动开发
         User user = userDAO.queryById(5);
         System.out.println(user);
     }

     @Test
     public void save(){
         User user1=new User();
         user1.setName("123");
         userDAO.save(user1);
     }
 }

 package com.etc.entity;

 import java.util.Date;

 public class User {
     private int id;
     private String name;
     private double sal;
     private Date birth;

     public User() {
     }

     public User(int id, String name, double sal, Date birth) {
         this.id = id;
         this.name = name;
         this.sal = sal;
         this.birth = birth;
     }

     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 double getSal() {
         return sal;
     }

     public void setSal(double sal) {
         this.sal = sal;
     }

     public Date getBirth() {
         return birth;
     }

     public void setBirth(Date birth) {
         this.birth = birth;
     }

     @Override
     public String toString() {
         return "User{" +
                 "id=" + id +
                 ", name='" + name + '\'' +
                 ", sal=" + sal +
                 ", birth=" + birth +
                 '}';
     }
 }

User.java

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

 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
          xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
   <modelVersion>4.0.0</modelVersion>

   <groupId>com.etc</groupId>
   <artifactId>ssm01</artifactId>
   <version>1.0-SNAPSHOT</version>
   <packaging>war</packaging>

   <name>ssm01 Maven Webapp</name>
   <!-- FIXME change it to the project's website -->
   <url>http://www.example.com</url>

   <properties>
     <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
     <maven.compiler.source>1.7</maven.compiler.source>
     <maven.compiler.target>1.7</maven.compiler.target>
     <spring.version>4.3.24.RELEASE</spring.version>
     <mybatis.version>3.5.1</mybatis.version>
     <mybatis-spring.version>1.3.2</mybatis-spring.version>
   </properties>

   <dependencies>
     <!--白盒测试工具 -->
     <dependency>
       <groupId>junit</groupId>
       <artifactId>junit</artifactId>
       <version>4.12</version>
     </dependency>
     <!--控制日志信息输送的目的地是控制台、文件、GUI组件、甚至是套接口服务器 -->
     <dependency>
       <groupId>log4j</groupId>
       <artifactId>log4j</artifactId>
       <version>1.2.17</version>
     </dependency>
     <dependency>
       <groupId>org.slf4j</groupId>
       <artifactId>slf4j-api</artifactId>
       <version>1.7.5</version>
     </dependency>
     <!--解析json -->
     <dependency>
       <groupId>org.codehaus.jackson</groupId>
       <artifactId>jackson-mapper-asl</artifactId>
       <version>1.9.12</version>
     </dependency>
     <!--处理编码 -->
     <dependency>
       <groupId>commons-codec</groupId>
       <artifactId>commons-codec</artifactId>
       <version>1.7</version>
     </dependency>
     <!-- mybatis是ibatis 的升级版。是一种 orm 工具，简化数据库操作 -->
     <dependency>
       <groupId>org.mybatis</groupId>
       <artifactId>mybatis</artifactId>
       <version>${mybatis.version}</version>
     </dependency>
     <!-- 是一个用来整合 MyBatis 和 Spring 框架的小类库 -->
     <dependency>
       <groupId>org.mybatis</groupId>
       <artifactId>mybatis-spring</artifactId>
       <version>${mybatis-spring.version}</version>
     </dependency>

     <!--用来帮助进行IO功能开发 -->
     <dependency>
       <groupId>commons-io</groupId>
       <artifactId>commons-io</artifactId>
       <version>2.0.1</version>
     </dependency>
     <!-- Spring -->
     <dependency>
       <groupId>org.springframework</groupId>
       <artifactId>spring-core</artifactId>
       <version>${spring.version}</version>
     </dependency>
     <dependency>
       <groupId>org.springframework</groupId>
       <artifactId>spring-context</artifactId>
       <version>${spring.version}</version>
     </dependency>
     <dependency>
       <groupId>org.springframework</groupId>
       <artifactId>spring-web</artifactId>
       <version>${spring.version}</version>
     </dependency>
     <dependency>
       <groupId>org.springframework</groupId>
       <artifactId>spring-context-support</artifactId>
       <version>${spring.version}</version>
     </dependency>
     <dependency>
       <groupId>org.springframework</groupId>
       <artifactId>spring-webmvc</artifactId>
       <version>${spring.version}</version>
     </dependency>
     <dependency>
       <groupId>org.springframework</groupId>
       <artifactId>spring-test</artifactId>
       <version>${spring.version}</version>
     </dependency>
     <!-- aop -->
     <dependency>
       <groupId>org.springframework</groupId>
       <artifactId>spring-aop</artifactId>
       <version>${spring.version}</version>
     </dependency>
     <dependency>
       <groupId>org.aspectj</groupId>
       <artifactId>aspectjweaver</artifactId>
       <version>1.8.13</version>
     </dependency>
     <dependency>
       <groupId>cglib</groupId>
       <artifactId>cglib</artifactId>
       <version>3.2.4</version>
     </dependency>
     <!--tx-->
     <dependency>
       <groupId>org.springframework</groupId>
       <artifactId>spring-orm</artifactId>
       <version>${spring.version}</version>
     </dependency>
     <dependency>
       <groupId>org.springframework</groupId>
       <artifactId>spring-tx</artifactId>
       <version>${spring.version}</version>
     </dependency>
     <!-- jackson -->
     <dependency>
       <groupId>com.fasterxml.jackson.core</groupId>
       <artifactId>jackson-core</artifactId>
       <version>2.9.3</version>
     </dependency>
     <dependency>
       <groupId>com.fasterxml.jackson.core</groupId>
       <artifactId>jackson-annotations</artifactId>
       <version>2.9.3</version>
     </dependency>
     <dependency>
       <groupId>com.fasterxml.jackson.core</groupId>
       <artifactId>jackson-databind</artifactId>
       <version>2.9.3</version>
     </dependency>
     <!-- jdbc driver -->
     <dependency>
       <groupId>mysql</groupId>
       <artifactId>mysql-connector-java</artifactId>
       <version>5.1.22</version>
     </dependency>
     <!-- JSTL（JSP Standard Tag Library ，JSP标准标签库)是一个不断完善的开放源代码的JSP标签 -->
     <dependency>
       <groupId>javax.servlet</groupId>
       <artifactId>jstl</artifactId>
       <version>1.2</version>
     </dependency>
     <!-- Servlet包含的类以及方法 -->
     <dependency>
       <groupId>javax.servlet</groupId>
       <artifactId>servlet-api</artifactId>
       <version>3.0.1</version>
     </dependency>
     <!-- validator包含的类以及方法 -->
     <dependency>
       <groupId>org.hibernate</groupId>
       <artifactId>hibernate-validator</artifactId>
       <version>5.2.4.Final</version>
     </dependency>
   </dependencies>

   <build>
     <finalName>ssm01</finalName>
     <pluginManagement><!-- lock down plugins versions to avoid using Maven defaults (may be moved to parent pom) -->
       <plugins>
         <plugin>
           <artifactId>maven-clean-plugin</artifactId>
           <version>3.1.0</version>
         </plugin>
         <!-- see http://maven.apache.org/ref/current/maven-core/default-bindings.html#Plugin_bindings_for_war_packaging -->
         <plugin>
           <artifactId>maven-resources-plugin</artifactId>
           <version>3.0.2</version>
         </plugin>
         <plugin>
           <artifactId>maven-compiler-plugin</artifactId>
           <version>3.8.0</version>
         </plugin>
         <plugin>
           <artifactId>maven-surefire-plugin</artifactId>
           <version>2.22.1</version>
         </plugin>
         <plugin>
           <artifactId>maven-war-plugin</artifactId>
           <version>3.2.2</version>
         </plugin>
         <plugin>
           <artifactId>maven-install-plugin</artifactId>
           <version>2.5.2</version>
         </plugin>
         <plugin>
           <artifactId>maven-deploy-plugin</artifactId>
           <version>2.8.2</version>
         </plugin>
       </plugins>
     </pluginManagement>
   </build>
 </project>

pom.xml