ssm框架整合配置---web.xml，傻傻分不清楚

<?xml version="1.0" encoding="UTF-8"?>
<web-app version="3.0"
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_3_0.xsd"> 
<display-name></display-name>

<!-- 404错误拦截 -->
<error-page>
<error-code>404</error-code>
<location>/error404.jsp</location>
</error-page>
<!-- 500错误拦截 -->
<error-page>
<error-code>500</error-code>
<location>/error500.jsp</location>
</error-page>

<!-- 加载spring容器 -->
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>WEB-INF/classes/spring/appli
4000
cationContext-*.xml</param-value>
</context-param>
<listener>
<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>

<!-- 配置前端控制器 -->
<servlet>
<servlet-name>spring</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<init-param>
<!-- ContextconfigLocation配置springmvc加载的配置文件
适配器、处理映射器等
-->
<param-name>contextConfigLocation</param-name>
<param-value>WEB-INF/classes/spring/springmvc.xml</param-value>
</init-param>
</servlet>
<servlet-mapping>
<servlet-name>spring</servlet-name>
<!-- 1、.action访问以.action结尾的  由DispatcherServlet进行解析
2、/,所有访问都由DispatcherServlet进行解析
-->
<url-pattern>/</url-pattern>
</servlet-mapping>

<!-- 解决post乱码问题的过滤器 -->
<filter>
<filter-name>CharacterEncodingFilter</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>CharacterEncodingFilter</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
<welcome-file-list>
<welcome-file>welcome.jsp</welcome-file>
</welcome-file-list>

</web-app>