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<%@ page language="java" contentType="text/html; charset=UTF-8"
    pageEncoding="UTF-8"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>Insert title here</title>
</head>
<body>
<form action="/WEB06/RegisterServlet" method="get"><!--或者post-->
用户：<input type="text" name="username" value="请输入你的账号"><br>
密码：<input type="password" name="pwd" ><br>
性别：男<input type="radio" name="ssex" value="nan">女<input type="radio" name="ssex" value="nv"><br>
爱好：篮球<input type="checkbox" name=hobby value="lan"> 足球 <input type="checkbox" name=hobby value="zu">
 乒乓球<input type="checkbox" name=hobby value="pin"><br>
 <input type="submit" value="注册 ">
 </form>
</body>
</html>

　　

package com.oracle.demo01;

import java.io.IOException;
import java.util.Map;
import java.util.Set;

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

public class RegisterServlet extends HttpServlet {

	public void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
//    解决post请求乱码（推荐）
//		request.setCharacterEncoding("UTF-8");
		//		获取请求参数
		String uname=request.getParameter("username");
//		解决get请求
		uname=new String(uname.getBytes("ISO-8859-1"),"UTF-8");
		System.out.println(uname);
//		获取多个参数
		String[] hobbys=request.getParameterValues("hobby");
		for(String h:hobbys){
			System.out.println(h);
			
		}
		String[] hobb=request.getParameterValues("ssex");
		for(String hh:hobb){
			System.out.println(hh);
			
		}
//		获取所有参数所在的Map集合
		Map<String,String[]>map=request.getParameterMap();
		System.out.println("--------------");
//		获取所有key所在的Set集合
		Set<String>keys=map.keySet();
//		遍历取到每一个key值
		for(String key:keys){
		   String [] values=map.get(key);
		   System.out.println(key+":");
		   for(String value:values){
			   	System.out.print(value);
		   }
		   System.out.println();
		}
	}

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

　　

posted on 2021-06-18 10:04  司浩宇  阅读(49)  评论(0)    收藏  举报