引入jar包：

　　servlet-api.jar

 

ParameterServlet.java

package com.mousewheel.springmvc;import java.io.IOException;import javax.servlet.ServletContext;import javax.servlet.ServletException;import javax.servlet.ServletOutputStream;import javax.servlet.http.HttpServlet;import javax.servlet.http.HttpServletRequest;import javax.servlet.http.HttpServletResponse;public class ParameterServlet extends HttpServlet {    private String name = "";    private Integer age = 0;    @Override    public void init() throws ServletException {        super.init();        ServletContext context = getServletContext();        name = context.getInitParameter("name");        age = Integer.valueOf(context.getInitParameter("age"));    }    @Override    protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {        ServletOutputStream out = resp.getOutputStream();        resp.setContentType("text/html");        out.println("");        out.println("Name is  " + name);        out.println("
Age is  " + age + "");        out.println("");    }}

 

web.xml

         
      
       Servlet Demo
          
              
       
        name
               
       
        mousewheel
           
          
              
       
        age
               
       
        10
           
          
              
       
        ParameterServlet
               
       
        com.mousewheel.springmvc.ParameterServlet
           
          
              
       
        ParameterServlet
               
       
        /
           
      
     

 

运行结果