下面是web層，web.xml配置文檔裏面需要配置的東西：

1、lo4j配置

2、讀取spring文件配置

3、設計路徑變量值

4、spring字符集過濾器

5、登陸過濾器

6、springMVC核心配置

7、session過期時間

8、錯誤頁面跳轉

以下是實例：

<?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" xmlns:web="http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"
 

    xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd"
    id="WebApp_ID" version="3.0">
    <display-name>bridgechart-web</display-name>

    <!-- log4j 配置 -->
    <context-param>
        <param-name>log4jConfigLocation</param-name
 
>
        <param-value>classpath:properties/log4j.properties</param-value>
    </context-param>
    <!-- load log4j -->
    <listener>
        <listener-class>org.springframework.web.util.Log4jConfigListener</listener-class>
    </listener>
    <!-- 讀取spring配置文件 
 
-->
    <context-param>
        <param-name>contextConfigLocation</param-name>
        <param-value>classpath:xml/spring.xml;
            classpath:xml/spring-mybatis.xml
            <!-- ;classpath:xml/spring-job.xml -->
        </param-value>
    </context-param>
    <!-- 設計路徑變量值 -->
    <context-param>
        <param-name>webAppRootKey</param-name>
        <param-value>bridgechart-web.root</param-value>
    </context-param>
    <context-param>
        <param-name>log4jExposeWebAppRoot</param-name>
        <param-value>false</param-value>
    </context-param>
    <!-- Spring字符集過濾器 -->
    <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>
    
    <!-- 登錄過濾器 -->
    <filter>
        <filter-name>PagesFilter</filter-name>
        <filter-class>com.mmc.d4alc.controller.PagesFilter</filter-class>
    </filter>
    <filter-mapping>
        <filter-name>PagesFilter</filter-name>
        <url-pattern>/*</url-pattern>
    </filter-mapping>
    <listener>
        <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
    </listener>

    <!-- springMVC核心配置 -->
    <servlet>
        <servlet-name>spring</servlet-name>
        <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
        <init-param>
            <param-name>contextConfigLocation</param-name>
            <param-value>classpath:xml/spring-mvc.xml</param-value>
        </init-param>
        <load-on-startup>1</load-on-startup>
    </servlet>
    <servlet-mapping>
        <servlet-name>spring</servlet-name>
        <url-pattern>/</url-pattern>
    </servlet-mapping>
    <servlet-mapping>
        <servlet-name>default</servlet-name>
        <url-pattern>*.mp4</url-pattern>
    </servlet-mapping>

    <welcome-file-list>
        <welcome-file>login.jsp</welcome-file>
    </welcome-file-list>
    
  
  <!-- session過期時間-->
  <session-config>
      <session-timeout>10</session-timeout>
  </session-config>
  
    <!-- 錯誤跳轉頁面 -->
    <error-page>
        <!-- 路徑不正確 -->
        <error-code>404</error-code>
        <location>/view/common/404.jsp</location>
    </error-page>
    <error-page>
        <!-- 沒有訪問權限，訪問被禁止 -->
        <error-code>405</error-code>
        <location>/view/common/405.jsp</location>
    </error-page>
    <error-page>
        <!-- 內部錯誤 -->
        <error-code>500</error-code>
        <location>/view/common/500.jsp</location>
    </error-page>
</web-app>

maven工程web層的web.xml配置文檔內容