時(shí)間：2023-10-06 17:18:02 | 來(lái)源：網(wǎng)站運(yùn)營(yíng)
時(shí)間：2023-10-06 17:18:02 來(lái)源：網(wǎng)站運(yùn)營(yíng)
Java Web實(shí)驗(yàn)報(bào)告：HTTP的響應(yīng)：第二部分 HTTP的響應(yīng)
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package com.demo;import java.io.IOException;import java.io.PrintWriter;import java.text.SimpleDateFormat;import java.util.Date;import javax.servlet.ServletException;import javax.servlet.annotation.WebServlet;import javax.servlet.http.HttpServlet;import javax.servlet.http.HttpServletRequest;import javax.servlet.http.HttpServletResponse;@WebServlet(name = "RefreshServlet", urlPatterns = {"/RefreshServlet"})public class RefreshServlet extends HttpServlet { @Override protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { response.setContentType("text/html;charset=gb2312"); response.setHeader("refresh","3"); PrintWriter out = response.getWriter(); Date date = new Date(); SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd a HH:mm:ss"); String s = sdf.format(date); out.println("<html>"); out.println("<body>"); out.println("<h3 align=/"center/">每3秒鐘刷新一次頁(yè)面</h3><p>"); out.println("<h3 align=/"center/">現(xiàn)在的時(shí)間是："+s+"</h3><p>"); out.println("</body>"); out.println("</html>"); } }package com.demo;import java.io.IOException;import java.io.PrintWriter;import javax.servlet.ServletException;import javax.servlet.annotation.WebServlet;import javax.servlet.http.HttpServlet;import javax.servlet.http.HttpServletRequest;import javax.servlet.http.HttpServletResponse;@WebServlet(name = "WordServlet", urlPatterns = {"/WordServlet"})public class WordServlet extends HttpServlet { protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { response.setHeader("Content-Encoding","gb2312"); //設(shè)置響應(yīng)的內(nèi)容類(lèi)型 response.setContentType("application/msword;charset = UTF-8"); PrintWriter out = response.getWriter(); out.println("這是一個(gè)word文件，你可以在該文件上編輯實(shí)現(xiàn)word文檔的功能"); }}(2)運(yùn)行WordServlet.java文件，下載“WordServlet”的文件，并用“Microsoft Office Word”打開(kāi)該文件<html> <head> <title>興趣愛(ài)好</title> <meta charset="UTF-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> </head> <body> <form action="hobby.do" method="get"> 姓名：<input type="text" name="name"><br> 班別：<input type="text" name="class"><br> <p>興趣： <input type="radio" name="hobby" value="1">編程 <input type="radio" name="hobby" value="2">新聞 <input type="radio" name="hobby" value="3">游戲 <br> <input type="submit" value="提交"> <input type="reset" value="重置"> </body></html>package com.demo;import java.io.IOException;import java.io.PrintWriter;import javax.servlet.ServletException;import javax.servlet.annotation.WebServlet;import javax.servlet.http.HttpServlet;import javax.servlet.http.HttpServletRequest;import javax.servlet.http.HttpServletResponse;@WebServlet(name = "HobbyServlet", urlPatterns = {"/hobby.do"})public class HobbyServlet extends HttpServlet { @Override protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { String hobby = request.getParameter("hobby"); //根據(jù)興趣決定響應(yīng)重定向的網(wǎng)站 if(hobby!=null&&hobby.equals("1")){ response.sendRedirect("http://www.csdn.net/?ref=toolbar"); }else if(hobby!=null&&hobby.equals("2")){ response.sendRedirect("http://news.163.com/"); }else if(hobby!=null&&hobby.equals("3")){ response.sendRedirect("http://www.4399.com/"); }else {//如果沒(méi)有填寫(xiě)興趣選項(xiàng)，則向客戶(hù)端發(fā)送狀態(tài)碼和錯(cuò)誤信息 response.sendError(404,"沒(méi)有填寫(xiě)興趣選項(xiàng)"); } } @Override protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { doGet(request, response); }}關(guān)鍵詞：響應(yīng),報(bào)告,實(shí)驗(yàn)
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