SpringMVC+MyBatis+Shiro 配置文件详解

1、web.xml文件的配置

<?xml version="1.0" encoding="UTF-8"?>  
<web-app version="2.5"  
    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_2_5.xsd">  
    <!-- Web容器加载顺序ServletContext--context-param--listener--filter--servlet -->  
  
    <!-- 指定Spring的配置文件 -->  
    <!-- 否则Spring会默认从WEB-INF下寻找配置文件,contextConfigLocation属性是Spring内部固定的 -->
    <context-param>  
        <param-name>contextConfigLocation</param-name>  
        <param-value>classpath*:/spring-context*.xml</param-value>  
    </context-param>  
  
    <!-- 防止发生java.beans.Introspector内存泄露,应将它配置在ContextLoaderListener的前面 -->
    <listener>  
        <listener-class>org.springframework.web.util.IntrospectorCleanupListener</listener-class>  
    </listener>  
      
    <!-- 实例化Spring容器 -->  
    <!-- 应用启动时,该监听器被执行,它会读取Spring相关配置文件,其默认会到WEB-INF中查找applicationContext.xml -->  
    <listener>  
        <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>  
    </listener>  
  
    <!-- 解决乱码问题 -->  
    <!-- forceEncoding默认为false,此时效果可大致理解为request.setCharacterEncoding("UTF-8") -->  
    <!-- forceEncoding=true后,可大致理解为request.setCharacterEncoding("UTF-8")和response.setCharacterEncoding("UTF-8") -->  
    <filter>  
        <filter-name>SpringEncodingFilter</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>  
        <init-param>  
            <param-name>forceEncoding</param-name>  
            <param-value>true</param-value>  
        </init-param>  
    </filter>  
    <filter-mapping>  
        <filter-name>SpringEncodingFilter</filter-name>  
        <url-pattern>/*</url-pattern>  
    </filter-mapping>  
      
    <!-- 配置Shiro过滤器,先让Shiro过滤系统接收到的请求 -->  
    <!-- 这里filter-name必须对应applicationContext.xml中定义的<bean >-->  
    <!-- 使用[/*]匹配所有请求,保证所有的可控请求都经过Shiro的过滤 -->  
    <!-- 通常会将此filter-mapping放置到最前面(即其他filter-mapping前面),以保证它是过滤器链中第一个起作用的 -->  
    <filter>  
        <filter-name>shiroFilter</filter-name>  
        <filter-class>org.springframework.web.filter.DelegatingFilterProxy</filter-class>  
        <init-param>  
            <!-- 该值缺省为false,表示生命周期由SpringApplicationContext管理,设置为true则表示由ServletContainer管理 -->  
            <param-name>targetFilterLifecycle</param-name>  
            <param-value>true</param-value>  
        </init-param>  
    </filter>  
    <filter-mapping>  
        <filter-name>shiroFilter</filter-name>  
        <url-pattern>/*</url-pattern>  
    </filter-mapping>  
  
    <!-- SpringMVC核心分发器 -->  
    <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*:/spring-mvc*.xml</param-value>  
        </init-param>  
    </servlet>  
    <servlet-mapping>  
        <servlet-name>SpringMVC</servlet-name>  
        <url-pattern>/</url-pattern>  
    </servlet-mapping>  
  
    <!-- Session超时30分钟(零或负数表示会话永不超时)-->  
    <!--   
    <session-config>  
        <session-timeout>30</session-timeout>  
    </session-config>  
     -->  
  
    <!-- 默认欢迎页 -->
    <!-- Servlet2.5中可直接在此处执行Servlet应用,如<welcome-file>servlet/InitSystemParamServlet</welcome-file> -->  
    <!-- 这里使用了SpringMVC提供的<mvc:view-controller>标签,实现了首页隐藏的目的,详见applicationContext.xml -->  
    <!--   
    <welcome-file-list>  
        <welcome-file>login.jsp</welcome-file>  
    </welcome-file-list>  
     -->  
      
    <error-page>  
        <error-code>405</error-code>  
        <location>/WEB-INF/405.html</location>  
    </error-page>  
    <error-page>  
        <error-code>404</error-code>  
        <location>/WEB-INF/404.jsp</location>  
    </error-page>  
    <error-page>  
        <error-code>500</error-code>  
        <location>/WEB-INF/500.jsp</location>  
    </error-page>  
    <error-page>  
        <exception-type>java.lang.Throwable</exception-type>  
        <location>/WEB-INF/500.jsp</location>  
    </error-page>  
</web-app>

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