Servlet获取当前服务器的实际路径

Servlet/Jsp需要操作服务器所拥有的资源，为此需要得到其绝对路径或实际路径，

在Servlet的doGet方法中加入以下代码可以查看服务器的实际路径。

 package com.mhb;

 import java.io.IOException;
 import java.io.PrintWriter;

 import javax.servlet.ServletContext;
 import javax.servlet.ServletException;
 import javax.servlet.http.HttpServlet;
 import javax.servlet.http.HttpServletRequest;
 import javax.servlet.http.HttpServletResponse;

 public class getRealPathServletDemo extends HttpServlet {

     public void init() throws ServletException {
     }

     public void doGet(HttpServletRequest request, HttpServletResponse response)
             throws ServletException, IOException {
19         response.setContentType("text/html;charset=utf-8");
20         ServletContext context = this.getServletContext();
21         PrintWriter out = response.getWriter();
22         out.print("当前服务器的实际路径为："+context.getRealPath(""));
     }

     public void doPost(HttpServletRequest request, HttpServletResponse response)
             throws ServletException, IOException {
     }

     public void destroy() {
         super.destroy();
     }
 }