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请人做网站花多少钱,抖音关键词优化排名,dreamwave 做网站,日照大众网是什么单位该示例采用doPost方法提交表单，该示例一共包含两个文件。一个是用来提交用户信息的表单userForm2.jsp，另一个是用来接收参数的Servlet。 userForm2.jsp 1 <% page language"java" contentType"text/html;charsetgb2312"%>2 …

该示例采用doPost方法提交表单，该示例一共包含两个文件。

一个是用来提交用户信息的表单userForm2.jsp，另一个是用来接收参数的Servlet。

userForm2.jsp

 1 <%@ page language="java"  contentType="text/html;charset=gb2312"%>
 2 
 3 <html>
 4   <head><title>用户表单</title></head>
 5   
 6   <body>
 7 <form action="DoPostDemo" method="post">
 8 用户名：<input type="text" name="username"><br />
 9 密码：<input type="password" name="password"><br />
10 <input type="submit" value="提交">
11 <input type="reset" value="重置">
12 </form>
13   </body>
14 </html>

接收参数的Servlet

 1 package com.mhb;
 2 
 3 import java.io.IOException;
 4 import java.io.PrintWriter;
 5 
 6 import javax.servlet.ServletException;
 7 import javax.servlet.http.HttpServlet;
 8 import javax.servlet.http.HttpServletRequest;
 9 import javax.servlet.http.HttpServletResponse;
10 
11 public class DoPostDemo extends HttpServlet {
12 public void init() throws ServletException {
13 }
14 public void doPost(HttpServletRequest request, HttpServletResponse response)
15 throws ServletException, IOException {
16 response.setContentType("text/html;charset=gb2312");
17 PrintWriter out = response.getWriter();
18 
19 //设置接收参数的编码格式
20 request.setCharacterEncoding("gb2312");
21 //获取username,password参数
22 String username = request.getParameter("username");
23 String password = request.getParameter("password");
24 
25 out.println("<HTML>");
26 out.println("<BODY>");
27 out.print("用户名："+username+"<br />");
28 out.print("密码："+password+"<br />");
29 out.println("  </BODY>");
30 out.println("</HTML>");
31 }
32 public void destroy() {
33 super.destroy();
34 }
35 }

web.xml配置

  <servlet><servlet-name>DoPostDemo</servlet-name><servlet-class>com.mhb.DoPostDemo</servlet-class></servlet><servlet-mapping><servlet-name>DoPostDemo</servlet-name><url-pattern>/DoPostDemo</url-pattern></servlet-mapping>

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