提交表單代碼：
<!DOCTYPE html><html><head><meta charset="UTF-8"><title>Insert title here</title></head><body><h1>測(cè)試請(qǐng)求參數(shù)</h1><!-- 注意href和action都是寫的完整的名稱:項(xiàng)目名和資源路徑名 --><!-- 下面一句是get請(qǐng)求方式并在URL后面?zhèn)髦?--><a href="/Web/AAServlet?xxx=王大炮&yyy=123456">點(diǎn)擊這里</a><hr /><form action="/Web/AAServlet" method="post"> 用戶名:<input type="text" name="username" /><br /> 密 碼:<input type="password" name="password" /><br /> 性 別:<input type="radio" name="sex" checked="checked" value="男">男 <input type="radio" name="sex" value="女">女<br /> 愛(ài) 好:<input type="checkbox" name="hobby" value="吃飯" />吃飯 <input type="checkbox" name="hobby" value="睡覺(jué)" />睡覺(jué) <input type="checkbox" name="hobby" value="打代碼" />打代碼 <br/> <input type="submit" value="提交" /> </form></body></html>
Servlet代碼：
package request請(qǐng)求獲取Post或者get參數(shù);import java.io.IOException;import java.util.Arrays;import java.util.Enumeration;import java.util.Iterator;import java.util.Map;import javax.servlet.ServletException;import javax.servlet.annotation.WebServlet;import javax.servlet.http.HttpServlet;import javax.servlet.http.HttpServletRequest;import javax.servlet.http.HttpServletResponse;/* * 演示request獲取請(qǐng)求參數(shù) */@WebServlet("/AAServlet")public class AAServlet extends HttpServlet { private static final long serialVersionUID = 1L; protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { System.out.println("get:"+request.getParameter("xxx")); System.out.println("get:"+request.getParameter("yyy")); } protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { request.setCharacterEncoding("utf-8"); response.setContentType("text/html;charset=utf-8"); String username = request.getParameter("username"); String password = request.getParameter("password"); String[] hobby = request.getParameterValues("hobby"); System.out.println(username+","+password+","+Arrays.toString(hobby)); /* * 測(cè)試獲取所有請(qǐng)求參數(shù)的名稱 */ Enumeration<?> names2 = request.getParameterNames(); while(names2.hasMoreElements()){ System.out.println(names2.nextElement()); }// Iterator<String> names = (Iterator<String>) request.getParameterNames();// while(names.hasNext()){// System.out.println(names.next());// } /* * 獲取所有請(qǐng)求參數(shù)，封裝到Map中 */ Map<String,String[]> map = (Map<String,String[]>)request.getParameterMap(); for(String name:map.keySet()){ String[] values = map.get(name); System.out.println(name+"="+Arrays.toString(values)); } }}
新聞熱點(diǎn)
疑難解答
圖片精選
