Spring4.2+SpringMVC+Mybatis3.4的集成

                                                            Spring+SpringMVC+Mybatis的集成
一、 项目结构图如下：
 
此项目主要目的是在于集成，主要包括一下步骤：

Jar包的加入 Web.xml的配置 SpringMVC的配置文件的创建 Spring配置文件的创建 Model的建立 Controller的建立 Service的建立 Dao的建立

二、具体的详细步骤如下：
1. Jar包的加入，包括：spring、MyBatis、log、spring-mybatis、oracle。具体的jar包如下图所示，并简要的说明每个jar的作用。
 
2. 需要在Web.xml文件中配置每个框架的入口。如下所示：

<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
  xmlns="http://java.sun.com/xml/ns/javaee" 
  xsi:schemaLocation="http://java.sun.com/xml/ns/javaee 
  http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" 
  id="WebApp_ID" version="2.5">
  <display-name>ssm</display-name>
  <!-- 初始化spring的配置文件 -->
  <context-param>
   <param-name>contextConfigLocation</param-name>
   <param-value>classpath*:conf/beans.xml</param-value>
  </context-param>
  <listener>
   <description>spring监听器</description>
   <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
  </listener>
  <!-- 配置springmvc的入口 -->
  <servlet>
   <servlet-name>action</servlet-name>
   <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
  <init-param>
   <param-name>contextConfigLocation</param-name>
   <param-value>classpath*:conf/spring-mvc.xml</param-value>
  </init-param>
  <load-on-startup>1</load-on-startup>
  </servlet>
  <servlet-mapping>
   <servlet-name>action</servlet-name>
   <url-pattern>/</url-pattern>
  </servlet-mapping>
<!—springMVC配置结束 -->
  <!-- 拦截器,对每个请求处理字符编码为UTF-8 -->
  <filter>
   <filter-name>encodingFilter</filter-name>
   <filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class>
   <init-param>
    <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>
<!-- 拦截器结束-->
</web-app>

首先说明一下Web.xml中配置项的执行过程： <context-param>  <listenser> <filter>  <servlet>
首先初始化Spring的bean工厂,通过加载beans.xml初始化，其次通过spring的listener来监听，再次当请求时拦截并编码为UTF-8，最后由DispatcherServlet处理并分发到controller上
3. springMVC的配置文件

<?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:mvc="http://www.springframework.org/schema/mvc"
	xmlns:p="http://www.springframework.org/schema/p"
	xmlns:context="http://www.springframework.org/schema/context"
	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/mvc
        http://www.springframework.org/schema/mvc/spring-mvc.xsd">
	<!-- 开启注解扫描 -->
	<mvc:annotation-driven/>
	<!--  annotation默认的方法映射适配器 ,下面两个就是  <mvc:annotation-driven/>-->
    <!-- <bean id="handlerMapping" class="org.springframework.web.servlet.mvc.annotation.DefaultAnnotationHandlerMapping" />
    <bean id="handlerAdapter" class="org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter" /> -->
	
	<!-- 指定扫描包 -->
	<context:component-scan base-package="com.sm.controller" />
	
	<!-- 配置视图处理 -->
	<bean id="viewResolver"
		class="org.springframework.web.servlet.view.InternalResourceViewResolver">
		<property name="prefix" value="/WEB-INF/view/" />
		<property name="suffix" value=".jsp" />
	</bean>

	<!-- SpringMVC上传文件时，需要配置MultipartResolver处理器 -->
	<bean id="multipartResolver"
		class="org.springframework.web.multipart.commons.CommonsMultipartResolver">
		<property name="defaultEncoding" value="utf-8" />
		<property name="maxUploadSize" value="10485760000" />
		<property name="maxInMemorySize" value="40960" />
	</bean>
</beans>

4. spring的配置文件

<beans xmlns="http://www.springframework.org/schema/beans"
 xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:p="http://www.springframework.org/schema/p"
 xmlns:util="http://www.springframework.org/schema/util" xmlns:context="http://www.springframework.org/schema/context"
 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/util 
  http://www.springframework.org/schema/util/spring-util.xsd">
 <context:annotation-config />
 <!-- 扫描service,dao -->
 <context:component-scan base-package="com.sm">
  <context:exclude-filter type="regex"
   expression="com.sm.controller" />
 </context:component-scan>
 <!-- 配置数据源/ -->
 <!-- 把.properties文件引入xml文件中 -->




 <!-- 第一种方式,比较方便 -->
 <!-- <util:properties location="classpath*:conf/jdbc.properties" /> -->
 <!-- 第二中方式 -->
 <!-- <context:property-placeholder location="classpath*:conf/jdbc.properties"/> -->
 <!-- 第三种方式 ,稍复杂点 -->
 <bean id="propertyConfigurer"
  class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">
  <property name="locations" value="classpath*:conf/jdbc.properties" />
  <!-- <property name="locations"> <list> <value>classpath*:conf/jdbc.properties</value> 
   </list> </property> -->
 </bean>




 <!-- 将Mybatis的DataSource,sessionFactory以及Transaction受控于Spring容器 -->
 <!-- 数据源有多种:1,dbcp class="" 2,c3p0, class="" 3,alibaba的Druid(德鲁伊)数据源 class="com.alibaba.druid.pool.DruidDataSource" 
  4,spring class="org.springframework.jdbc.datasource.DriverManagerDataSource" -->
 <bean id="dataSource"
 class="org.springframework.jdbc.datasource.DriverManagerDataSource">
  <property name="driverClassName" value="${jdbc.driverClassName}" />
  <property name="url" value="${jdbc.url}" />
  <property name="username" value="${jdbc.username}" />
  <property name="password" value="${jdbc.password}" />
  <!-- 初始化连接大小 -->
  <property name="initialSize" value="0" />
  <!-- 连接池最大使用连接数量 -->
  <property name="maxActive" value="20" />
  <!-- 连接池最大空闲 -->
  <property name="maxIdle" value="20" />
  <!-- 连接池最小空闲 -->
  <property name="minIdle" value="0" />
  <!-- 获取连接最大等待时间 -->
  <property name="maxWait" value="60000" />
  <property name="validationQuery" value="${validationQuery}" />
  <property name="testOnBorrow" value="false" />
  <property name="testOnReturn" value="false" />
  <property name="testWhileIdle" value="true" />
  <!-- 配置间隔多久才进行一次检测，检测需要关闭的空闲连接，单位是毫秒 -->
  <property name="timeBetweenEvictionRunsMillis" value="60000" />
  <!-- 配置一个连接在池中最小生存的时间，单位是毫秒 -->
  <property name="minEvictableIdleTimeMillis" value="25200000" />
  <!-- 打开removeAbandoned功能 -->
  <property name="removeAbandoned" value="true" />
  <!-- 1800秒，也就是30分钟 -->
  <property name="removeAbandonedTimeout" value="1800" />
  <!-- 关闭abanded连接时输出错误日志 -->
  <property name="logAbandoned" value="true" />
  <!-- 监控数据库 -->
  <property name="filters" value="mergeStat" />
 </bean>
 <!-- 配置Mybatis/// -->
 <bean id="sessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
  <property name="dataSource" ref="dataSource" />
  <!-- <property name="configLocation" value="classpath*:conf/sqlMapConfig.xml" 
   /> -->
  <property name="mapperLocations">
   <list>
    <value>classpath*:conf/com/dao/mapper/*.map.xml</value>
   </list>
  </property>
 </bean>




 <!-- 配置扫描接口 -->
 <!-- <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer"> value指明接口所在的包中 
  <property name="basePackage" value="com.sm.dao" /> <property name="sessionFactory" 
  ref="sessionFactory" /> </bean> -->
</beans>

5. properties文件
jdbc.driverClassName=oracle.jdbc.OracleDriver
jdbc.url=jdbc:oracle:thin:@localhost:1521:orcl
jdbc.username=scott
jdbc.password=tiger
validationQuery=SELECT 1

6. model

package com.sm.controller;

import javax.annotation.Resource;

import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import com.sm.model.User;
import com.sm.service.UserService;

@Controller
@RequestMapping("/user")
public class UserController {
 
 private UserService userService;
 @Resource
 public void setUserService(UserService userService) {
  this.userService = userService;
 }
 @RequestMapping("/add")
 public String addUser(User user){
  userService.addUser(user);
  return "success";
 }
 @RequestMapping("/toAddUser")
 public String toAddUser(){
  return "userAdd";
 }
}

7. service

package com.sm.service;

import javax.annotation.Resource;

import org.springframework.stereotype.Service;
import com.sm.dao.UserDao;
import com.sm.model.User;

@Service
public class UserService {

 @Resource
 private UserDao userDao ;
 public void addUser(User user){
  userDao.add(user);
 }
}

8. dao

package com.sm.dao;

import javax.annotation.Resource;

import org.apache.ibatis.session.SqlSession;
import org.apache.ibatis.session.SqlSessionFactory;
import org.springframework.stereotype.Repository;

import com.sm.model.User;

@Repository
public class UserDao {

 @Resource
 private SqlSessionFactory sessionFactory ;
 
 public void add(User user){
  System.out.println("添加user"+user.getId()+"成功");
  SqlSession session = sessionFactory.openSession();
  session.insert("add", user);
 }
}

访问：http://localhost：8080/ssm/user/toAddUser

 
最重要的环境的配置

水平有限，请多多指教，共同学习共同成长！！转载注明出处！！！！

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