request--各種表單輸入項數據的獲取 學習筆記
阿新 • • 發佈：2018-04-18
request--各種表單輸入項數據的獲html
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> <html> <head> <title>index.html</title> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> </head> <body> <form action="/day04/Rdome5" method="post"> <table border="1" align="center"> <caption>用戶註冊</caption> <tr> <th>用戶名</th> <td><input type="text" name="username"/></td> </tr> <tr> <th>密碼</th> <td><input type="password" name="password"/></td> </tr> <tr> <th>性別</th> <td> <input checked type="radio" name="gender" value="male"/>男 <input type="radio" name="gender" value="female"/>女 </td> </tr> <tr> <th>愛好</th> <td> <input type="checkbox" name="likes" value="sing"/>唱歌 <input type="checkbox" name="likes" value="dance"/>跳舞 <input type="checkbox" name="likes" value="play"/>打球 <input type="checkbox" name="likes" value="net"/>上網 </td> </tr> <tr> <th>上傳文件</th> <td><input type="file" name="upfile"/></td> </tr> <tr> <th>城市</th> <td> <select name="city"> <option value="bj" selected>北京</option> <option value="sh">上海</option> <option value="gz" >廣州</option> <option value="cq">重慶</option> </select> </td> </tr> <tr> <th>留言</th> <td> <textarea name="message" rows="5" cols="20"></textarea> </td> </tr> <tr> <td> <input type="hidden" name="id" value="20111008"/> </td> </tr> <tr> <td colspan="2" align="center"> <input type="submit" value="提交"/> <input type="reset" value="重填"/> </td> </tr> </table> </form> </body> </html>
java
package cn.web.request; import java.io.IOException; import java.io.PrintWriter; import javax.servlet.ServletException; import javax.servlet.http.HttpServlet; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; public class Rdome5 extends HttpServlet { public void doPost(HttpServletRequest request, HttpServletResponse response)throws ServletException, IOException { //將[請求體]的中文以UTF-8方式重新編碼 request.setCharacterEncoding("UTF-8"); ///this.getServletContext().getRequestDispatcher("/download.html").forward(request, response); String username = request.getParameter("username"); String password = request.getParameter("password"); String gender = request.getParameter("gender"); String[] likes = request.getParameterValues("likes"); String upfile = request.getParameter("upfile"); String city = request.getParameter("city"); String message = request.getParameter("message"); String id = request.getParameter("id"); //控制臺輸出 System.out.println("username="+username); System.out.println("password="+password); System.out.println("gender="+gender); System.out.println("likes="+likes.length); System.out.println("upfile="+upfile); System.out.println("city="+city); System.out.println("message="+message); System.out.println("id="+id); } }
結果：
username=234324
password=234
gender=male
likes=1
upfile=
city=bj
message=23432
id=20111008
username=234324
password=234
gender=male
likes=1
upfile=
city=bj
message=23432
id=20111008
request--各種表單輸入項數據的獲取 學習筆記