Servlet接收用户表单参数

1.自定义Servlet

package com.zhan;


import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;


public class FileServlet extends HttpServlet {

    @Override
    protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {


        String username = req.getParameter("username");//接收参数

        System.out.println(username);//验证是否接收成功

        req.getRequestDispatcher("success.jsp").forward(req,resp);//转发页面
    }

    @Override
    protected void doPost(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
         doGet(req, resp);
    }
}

2.编写前端页面（JSP）

<%@page contentType="text/html; charset=UTF-8" language="java" %>

 
     
 


   

       
        

   

注意action中填写的应该是第一步自定义的FileServlet，表示提交该页面的数据到此Servlet中

3.在web.xml中配置FileServlet

  Archetype Created Web Application
  
  
    FileServlet
    com.zhan.FileServlet
  
 
   FileServlet
   /FileServlet
 
  
  

4.结果