Sping，SpringMVC，Mybatis 三大框架整合環境搭建詳解

SpringMVC：springMVC是一個表現層的框架，類似struts2.主要用於jsp頁面與後臺數據交互

• SpringMVC的三大組件：
  
  • 第一個組件：處理器映射器
  • 第二個組件：處理器適配器
  • 第三個組件：視圖解析器

Springmvc執行流程

• strutsPrepareAndExcuteFilter攔截請求（控制層），攔截請求，轉發請求
• 尋找Action執行
• ActionProxy：strutsActionProxy extends defaultActionProxy
• ActionMapping去尋找執行類Action
  根據mvc設計模式：

Sping，SpringMVC，Mybatis 三大框架整合環境搭建詳解：

第一步：導入jar包

第二步：配置spring的配置文件

<?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:aop="http://www.springframework.org/schema/aop"
       xmlns:tx="http://www.springframework.org/schema/tx"
       xmlns:p="http://www.springframework.org/schema/p"
       xmlns:c="http://www.springframework.org/schema/c"
       xmlns:mvc="http://www.springframework.org/schema/mvc"
       xsi:schemaLocation="
            http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
            http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop.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/mvc http://www.springframework.org/schema/mvc/spring-mvc.xsd">


<!-- 包掃描 -->
 <context:component-scan base-package="cn.peaceliu.springmvc.service"/>


 <!-- 讀取配置文件 -->
 <context:property-placeholder location="classpath:*.properties"/>
 <!-- 數據源 -->
 <bean id="dataSource" class="com.alibaba.druid.pool.DruidDataSource">
    <property name="driverClassName" value="${jdbc.driver}"></property>
    <property name="url" value="${jdbc.url}"/>
    <property name="username" value="${jdbc.username}"></property>
    <property name="password" value="${jdbc.password}"></property>
 </bean>


 <!-- sqlSessionFactoryBean -->
 <bean id="sqlSessionFactoryBean" class="org.mybatis.spring.SqlSessionFactoryBean">
    <property name="configLocation" value="classpath:SqlMapConfig.xml"></property>
    <property name="dataSource" ref="dataSource"></property>
    <property name="mapperLocations" value="classpath:mappers/*.xml"></property>
 </bean>

 <!-- 配置我們所有的接口掃描包 -->
 <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
    <property name="basePackage" value="cn.peaceliu.springmvc.dao"></property>
 </bean>

<!-- 事物管理 -->
 <bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
    <property name="dataSource" ref="dataSource"></property>
 </bean>
 <!-- 開啓事物 -->
 <tx:annotation-driven transaction-manager="transactionManager"/>

 </beans>  

第二步：配置mybatis的配置文件

<?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:aop="http://www.springframework.org/schema/aop"
       xmlns:tx="http://www.springframework.org/schema/tx"
       xmlns:p="http://www.springframework.org/schema/p"
       xmlns:c="http://www.springframework.org/schema/c"
       xmlns:mvc="http://www.springframework.org/schema/mvc"
       xsi:schemaLocation="
            http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
            http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop.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/mvc http://www.springframework.org/schema/mvc/spring-mvc.xsd">


        <!-- 包掃描路徑一定要配置到controller層，不要放大包掃描路徑 -->
        <context:component-scan base-package="cn.peaceliu.springmvc.controller"></context:component-scan>


        <!-- 配置我們的處理器映射器和處理器適配器 -->
        <mvc:annotation-driven/>


        <!-- 配置我們的資源視圖解析器 -->
        <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
            <property name="prefix" value="/WEB-INF/jsp/"></property>
            <property name="suffix" value=".jsp"></property>
        </bean>

    </beans>

第四步：配置web.xml

<!-- needed for ContextLoaderListener -->
<context-param>
    <param-name>contextConfigLocation</param-name>
    <param-value>classpath:applicationContext.xml</param-value>
</context-param>

<!-- Bootstraps the root web application context before servlet initialization -->
<listener>
    <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>


<!-- The front controller of this Spring Web application, responsible for handling all application requests -->
<servlet>
    <servlet-name>springDispatcherServlet</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>

<!-- Map all requests to the DispatcherServlet for handling -->
<servlet-mapping>
    <servlet-name>springDispatcherServlet</servlet-name>
    <url-pattern>*.action</url-pattern>
</servlet-mapping>