一个Servlet映射多个Mapping

在web中如果是多个角色，对应一个servlet的操作，就需要把一个servlet映射到不同的文件目录上，这样就不用为每个角色都写相同的代码。

举一个简单的例子。

需要映射的servlet:

package com.akwolf.servlet;import java.io.IOException;import java.io.PrintWriter;import javax.servlet.ServletException;import javax.servlet.http.HttpServlet;import javax.servlet.http.HttpServletRequest;import javax.servlet.http.HttpServletResponse;public class MultiMappingServlet extends HttpServlet {private static final long serialVersionUID = 1L;protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {this.doPost(request, response) ;}protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {PrintWriter writer = response.getWriter() ;writer.write("Multi-Mapping!!!") ;}}

进行映射的web.xml文件：

  <servlet>    <description></description>    <display-name>MultiMappingServlet</display-name>    <servlet-name>MultiMappingServlet</servlet-name>    <servlet-class>com.akwolf.servlet.MultiMappingServlet</servlet-class>  </servlet>  <servlet-mapping>    <servlet-name>MultiMappingServlet</servlet-name>    <url-pattern>/admin/multiMappingServlet.do</url-pattern>    <url-pattern>/user/multiMappingServlet.do</url-pattern>  </servlet-mapping>

分别在amdn和user文件下建立两个页面进行访问。

<a href="multiMappingServlet.do">multiMappingServlet.do</a>

结果是都可以访问到。