告別瞎忙，簡單實用的時間管理便籤
阿新 • • 發佈：2022-04-13
<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%> <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> <html> <body> <% double price=98.78; %> <p style="font-family:宋體;font-size:36;color:blue"> 商品編號A1001,價格8765 <a href ="MyJsp2.jsp?id=A1001&price=8765">購買</a><br> 商品編號A1002,價格<%=price %> <a href="MyJsp2.jsp?id=A1002&price=<%= price %>">購買</a> </p> </body> </html>
<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%> <% request.setCharacterEncoding("UTF-8"); response.setCharacterEncoding("UTF-8"); %> <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> <html> <body> <% String id=request.getParameter("id"); String price =request.getParameter("price"); %> <b>商品編號：<%=id %> <br> 商品價格：<%=price %> </body> </html>
<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%> <html> <head> </head> <body> <form action="s2.jsp" method="post"> 輸入運算數，選擇運算子號：<br> <input type="text" name="a1"size=6/> <select name="op"> <option value="+">加 <option value="-">減 <option value="*">乘 <option value="/">除 </select> <input type="text" name="a2"size=6/><br> <input type="submit" value="提交"/> </form> </body> </html>
<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%> <html> </head> <body> <% String a1 = request.getParameter("a1"); String a2 = request.getParameter("a2"); String op = request.getParameter("op"); if (a1 == null || a1.length() == 0) { response.sendRedirect("s1.jsp"); return; } else if (a2 == null || a2.length() == 0) { response.sendRedirect("s1.jsp"); return; } try { double a = Double.parseDouble(a1); double b = Double.parseDouble(a2); double r = 0; if (op.equals("+")) { r = a + b; } else if (op.equals("-")) { r = a - b; } else if (op.equals("*")) { r = a * b; } else if (op.equals("/")) { r = a / b; } out.print(a + "" + op + "" + b + "=" + r); } catch (Exception e) { out.print("錯了"); } %> </body> </html>
3.製作一個登陸表單，輸入賬號和密碼，如果賬號密碼相同，跳轉到“登入成功”頁面，否則跳轉到“登入失敗”頁面。（加上JS非空驗證）（選做，加驗證碼）
<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%> <% request.setCharacterEncoding("UTF-8"); response.setCharacterEncoding("UTF-8"); %> <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> <html> <body> <script type="text/javascript"> function login(){ if(logindo.admin.value==""){ alert("請輸入賬號"); return; } else if(logindo.pass.value==""){ alert("請輸入密碼"); return; } logindo.submit(); } </script> <form action="M2.jsp" name ="logindo"> <p style="font-family: 宋體;font-size: 18; color:blue"> 賬號： <input type="text" name="admin" size=6/> 密碼： <input type="password" name="pass" size=6/> <br><input type="button" value="登入" onclick="login()"/> </form> </body> </html>
<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%> <% request.setCharacterEncoding("UTF-8"); response.setCharacterEncoding("UTF-8"); %> <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> <html> <body> <% String admin=request.getParameter("admin"); String pass=request.getParameter("pass"); if(admin.equals(pass)){ request.getRequestDispatcher("M4.jsp").forward(request, response); } else{ response.sendRedirect("M3.jsp"); } %> </body> </html>
4.在上題的表單中增加一個checkbox,讓使用者選擇“是否註冊為會員"，如果註冊為會員，則在顯示時增加文字“歡迎您註冊為會員”
<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%> <html> <head> </head> <body> <script type="text/javascript"> function validate() { if (loginForm.account.value == "") { alert("賬號不能為空！"); return; } else if (loginForm.password.value == "") { alert("密碼不能為空！"); return; } loginForm.submit(); } </script> <form action="b2.jsp" name="loginForm" method="post"> 輸入賬號：<input name="account" type="text" /><br> 輸入密碼:<input name="password" type="password" /><br> 是否註冊會員： <input type="checkbox" name="yes" value="1"/>註冊 <input type="checkbox" name="yes" value="2"/>不註冊<br> <input type="button" value="登入"onClick="validate()"> </form> </body> </html>
<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%> <html> </head> <body> <h1>登入成功</h1> <% String []yes=request.getParameterValues("yes"); for(int i=0;i<yes.length;i++){ if(yes[i].equals("1")){ out.print("註冊為會員"); } } %> </body> </html>
5.在頁面1的表單內輸人一個數字N，提交，能夠在另一個頁面列印N個“歡迎”字串。
<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%> <html> <head> </head> <body> <form action="C2.jsp" name="logindo"> 請輸入數字： <input type="text" name="number" size=6><br> <input type="submit" value="提交" /> </form> </body> </html>
<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%> <html> <head> </head> <body> <% String number = request.getParameter("number"); int n = Integer.parseInt(number); for (int i = 0; i < n; i++) { out.print("歡迎" + "</br>"); } %> </body> </html>
6.在頁面1中輸入賬號和密碼,進行登入，如果賬號和密碼相同，則認為成功登入到頁面2,在頁面2中顯示一個文字框輸人使用者姓名,輸人之後提交,在頁面3中顯示使用者的賬號和姓名。（轉發）request.getRequestDispacher.....forward
<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%> <html> <head> </head> <body> <script type="text/javascript"> function login() { if (logindo.admin.value = "") { alter("賬號不能為空"); return; } else if (logindo.password.value = "") { alter("密碼不能為空"); return; } logindo.submit(); } </script> <form action="D2.jsp" name="logindo"> 賬號: <input type="text" name="admin" size=6><br> 密碼: <input type="password" name="password" size=6><br> <input type="button" value="登入" onclick="login()" /> </form> </body> </html>
<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%> <html> <head> </head> <body> <% String admin = request.getParameter("admin"); String password = request.getParameter("password"); if (admin.equals(password)) { request.getRequestDispatcher("D3.jsp").forward(request, response); } else { response.sendRedirect("D4.jsp"); } %> </body> </html>
<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%> <html> <head> </head> <body> 登入成功！！！ <% String admin = request.getParameter("admin"); %> <form action="D5.jsp"> 使用者名稱：<input type="text" name="uname"> <input type="submit" value="提交"> <input name="admin" type="hidden" value="<%=admin%>"> </form> </body> </html>
<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%> <html> <head> </head> <body> 登入失敗<br> </body> </html>
<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%> <html> <head> </head> <body> <% String admin = request.getParameter("admin"); String uname = request.getParameter("uname"); out.print("賬號："+admin+"</br>"+"使用者名稱稱："+uname); %> </body> </html>