標籤：div tle alt super 合法性 checked config bean ping
// javaBean代碼package servlet;import java.io.*;import javax.servlet.*;import javax.servlet.http.*;public class AcceptUserRegist extends HttpServlet {public String codeToString(String str) // 處理中文字串的函數{String s=str;try{byte tempB[]=s.getBytes("ISO-8859-1");s=new String(tempB);return s;}catch(Exception e){return s;}}public void init(ServletConfig config) throws ServletException{super.init(config);}public void doPost(HttpServletRequest request,HttpServletResponse response) throws ServletException,IOException{// 設定mimeresponse.setContentType("text/html;charset=GB2312");PrintWriter out=response.getWriter();out.println("<html><head><title>接收新使用者注冊</title></head> <body>");out.println("這是新使用者注冊所提交的資料:<br>");out.println("使用者名稱是:"+codeToString(request.getParameter("username"))+"<br>");out.println("密碼是:"+codeToString(request.getParameter("userpassword"))+"<br>");out.println("性別是:"+codeToString(request.getParameter("sex"))+"<br>");out.println("出生年月是:"+request.getParameter("year")+request.getParameter("month")+request.getParameter("day")+"<br>");out.println("電子郵箱是:"+request.getParameter("E-mail")+"<br>");out.println("家庭住址是:"+codeToString(request.getParameter("address"))+"<br>");out.print("</body> </html>");}}
<!-- servletform.jsp --><%@ page contentType="text/html;charset=gb2312" %><script language="javascript"> function on_submit() // 驗證資料的合法性 { if(form1.username.value=="") { alert("使用者名稱不可為空，請輸入使用者名稱!"); form1.username.focus(); return false; } if(form1.userpassword.value=="") { alert("使用者密碼不可為空。請輸入密碼!"); form1.userpassword.focus(); return false; } if(form1.reuserpassword.value=="") { alert("使用者確認密碼不可為空。請輸入密碼!"); form1.reuserpassword.focus(); return false; } if(form1.userpassword.value!=form1.reuserpassword.value) { alert("密碼與確認密碼不同"); form1.userpassword.focus(); return false; } if(form1.email.value.length!=0) { for(i=0;i<form1.email.value.length;i++) { if(form1.email.value.charAt(i)==‘@‘) { break; } } if(i==form1.email.value.length) { alert("非法E-mail地址!"); form1.email.focus(); return false; } } else { alert("請輸入E-mail!"); form1.email.focus(); return false; } }</script><html><head><title>新使用者注冊</title></head><body><form method="POST" action="acceptUserRegist" name="form1" onsubmit="return on_submit()">新使用者注冊<br>使用者名稱(*):<input type="text" name="username" size="20"><br>密 碼(*):<input type="password" name="userpassword" size="20"><br>再輸一次密碼(*):<input type="password" name="reuserpassword" size="20"><br>性別:<input type="radio" value="男" checked name="sex">男<input type="radio" name="sex" value="女">女<br>出生年月:<input name="year" size="4" maxlength=4>年 <select name="month"> <option value="1" selected>1</option> <option value="2">2</option> <option value="3">3</option> <option value="4">4</option> <option value="5">5</option> <option value="6">6</option> <option value="7">7</option> <option value="8">8</option> <option value="9">9</option> <option value="10">10</option> <option value="11">11</option> <option value="12">12</option> </select>月 <input name="day" size="3" maxlength=4>日<br>電子郵箱(*):<input name="E-mail" maxlength=28><br>家庭住址:<input type="text" name="address" size="20"><br><input type="submit" value="提交" name="B1"><input type="reset" value="所有重寫" name="B2"><br></form></body></html>另外。在web.xml檔案的<web-app>與</web-app>中增加例如以下配置：
<servlet> <servlet-name>acceptUserRegist</servlet-name> <servlet-class>servlet.AcceptUserRegist</servlet-class> </servlet> <servlet-mapping> <servlet-name>acceptUserRegist</servlet-name> <url-pattern>/acceptUserRegist</url-pattern> </servlet-mapping>輸入網址：localhost:8080/jspdemo/servletform.jsp
填寫資訊~ 例如以下：
提交後。顯示頁面例如以下：
JSP簡單練習-用Servlet擷取表單資料
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