整合SSM三大框架（jar包配置）

一、導入jar包

jar包地址：鏈接：https://pan.baidu.com/s/1EzkZqRBQ3es66UVu3bkY7A  提取碼：kv1h 

二、配置Web.xml

【1】配置前端控制器

<servlet>
    <servlet-name>springmvc</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>
  </servlet>
  <servlet-mapping>
    <servlet-name>springmvc</servlet-name>
    <url-pattern>*.action</url-pattern>
  </servlet-mapping>

【2】配置Post請求亂碼處理

<filter>
    <filter-name>characterEncoding</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>characterEncoding</filter-name>
    <url-pattern>/*</url-pattern>
  </filter-mapping>

【3】配置Spring容器初始化

<listener>
    <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
  </listener>
  <context-param>
    <param-name>contextConfigLocation</param-name>
    <param-value>classpath:/applicationContext.xml</param-value>
  </context-param>

web.xml中主要配置，一個是SpringMVC的前端控制器，一個是Spring框架的初始化加載配置文件。

 

二、配置Springvc.xml

【1】引入約束

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
	xmlns:context="http://www.springframework.org/schema/context"
	xmlns:aop="http://www.springframework.org/schema/aop"
	xmlns:mvc="http://www.springframework.org/schema/mvc"
	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
	xsi:schemaLocation="
	http://www.springframework.org/schema/beans
	http://www.springframework.org/schema/beans/spring-beans-4.3.xsd
	http://www.springframework.org/schema/context
	http://www.springframework.org/schema/context/spring-context-4.3.xsd
	http://www.springframework.org/schema/aop
	http://www.springframework.org/schema/aop/spring-aop-4.3.xsd
	http://www.springframework.org/schema/mvc
	http://www.springframework.org/schema/mvc/spring-mvc-4.3.xsd
	">
</beans>

【2】配置包掃描

<context:component-scan base-package="com.easymall.web"></context:component-scan>

【3】配置SpringMvc註解開發

<mvc:annotation-driven/>

【4】配置視圖解析器

<bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
        <property name="prefix" value="/WEB-INF/jsp/"></property>
        <property name="suffix" value=".jsp"></property>
    </bean>

三、配置applicationContext.xml

【1】引入約束文件

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
	xmlns:context="http://www.springframework.org/schema/context"
	xmlns:aop="http://www.springframework.org/schema/aop"
	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
	xsi:schemaLocation="
	http://www.springframework.org/schema/beans
	http://www.springframework.org/schema/beans/spring-beans-4.3.xsd
	http://www.springframework.org/schema/context
	http://www.springframework.org/schema/context/spring-context-4.3.xsd
	http://www.springframework.org/schema/aop
	http://www.springframework.org/schema/aop/spring-aop-4.3.xsd
	">

</beans>

【2】配置包掃描

<context:component-scan base-package="com.easymall.mapper"></context:component-scan>
<context:component-scan base-package="com.easymall.service"></context:component-scan>
<context:component-scan base-package="com.easymall.web"></context:component-scan>

【3】開啓依賴注入註解配置

<context:annotation-config/>

【4】開啓AOP註解配置

<aop:aspectj-autoproxy/>

【5】配置數據源

<bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource">
        <property name="driverClass" value="com.mysql.jdbc.Driver"></property>
        <property name="jdbcUrl" value="jdbc:mysql:///mybatis"></property>
        <property name="user" value="root"></property>
        <property name="password" value="123456"></property>
    </bean>

【6】配置事務管理器

<bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager ">
        <property name="dataSource" ref="dataSource"></property>
   </bean>    

【7】整合Mybatis SqlSessionFactory

<bean class="org.mybatis.spring.SqlSessionFactoryBean">
        <property name="dataSource" ref="dataSource"></property>
        <property name="configLocation" value="classpath:/sqlMapperConfig.xml"></property>
        <property name="mapperLocations" value="classpath:/mapper/*.xml"></property>
</bean>

主要注入數據源、sqlMapperConfig所在地、映射文件存在位置。/*表示mapper文件夾下的所有文件

【8】配置MapperBean掃描器，負責爲MapperBean生成實現類

<bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
        <property name="basePackage" value="com.easymall.mapper"></property>
</bean>

我們在使用mybatis框架的時候，一般是接口文件+映射文件，進行封裝數據。雖然，不需要我們書寫接口文件，但是框架的底層會幫我們動態代理出一個接口的實體類。

四、配置sqlConfigLocation.xml

【1】引入約束

<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE configuration
PUBLIC "-//mybatis.org//DTD Config 3.0//EN"
"http://mybatis.org/dtd/mybatis-3-config.dtd">
<configuration>
</configuration>

【2】配置別名操作

<typeAliases>
        <typeAlias type="com.easymall.domain.User" alias="user"/>
    </typeAliases>