1.教材P78-79 例4-9
<body bgcolor = #000000> <% double price = 98.78; %> <p style="font-family:宋体;font-size:36;color:red"> 商品编号A1001,价格8765 <a href ="2.jsp?id=A1001&price=8765">购买</a><br> 商品编号A1002,价格<%= price%> <a href ="2.jsp?id=A1002&price=<%= price%>">购买</a> </p></body> <body bgcolor = #cccccc> <p style="font-family:宋体;font-size:36;color:blue"> <% String id = request.getParameter("id"); String price = request.getParameter("price"); %> <br>商品编号:<%= id %><br> 商品价格:<%= price %> </p></body>
2.教材P97 实验2
3.制作一个登陆表单,输入账号和密码,如果账号密码相同,跳转到“登录成功”页面,否则跳转到“登录失败”页面。(加上JS非空验证)(选做,加验证码)
4.在上题的表单中增加一个checkbox,让用户选择“是否注册为会员",如果注册为会员,则在显示时增加文本“欢迎您注册为会员”。
<body> <% int intmethod1 = (int) ((((Math.random()) * 5)) + 1); int intmethod2 = (int) ((((Math.random()) * 5)) + 1); int intmethod3 = (int) ((((Math.random()) * 5)) + 1); int intmethod4 = (int) ((((Math.random()) * 5)) + 1); String intsum = intmethod1 + "" + intmethod2 + intmethod3 + intmethod4; %> <form name="loginForm" action="ShiXian.jsp" method="post"> 请输入账号:<input type="text" name="account"> <br> 请输入密码: <input type="password" name="password"> <br> 验证码:<input type="text" name="validationCode" onKeyDown="if(event.keyCode==13){loginForm.submit.focus();}" size="6"> <input type="button" name="validationCode1" size="1" value="<%=intsum%>" /> <br> 是否注册会员:<input type="radio" name="sf" value="是" />是 <input type="radio" name="sf" value="否" />否 <br> <input type="button" value="登录" onClick="validate()"> </form> <script type="text/javascript"> function validate() { if (loginForm.account.value == "") { alert("账号不能为空!"); return; } if (loginForm.password.value == "") { alert("密码不能为空!"); return; } if (loginForm.validationCode.value == "") { alert("验证码不能为空,请输入验证码"); loginForm.validationCode.focus(); return; } if (loginForm.validationCode.value != loginForm.validationCode1.value) { alert("请输入正确的验证码"); loginForm.validationCode.focus(); return; } loginForm.submit(); } </script> </body> <body> <% request.setCharacterEncoding("utf-8"); String uname = request.getParameter("account"); String upwd = request.getParameter("password"); if (uname.equals(upwd)) request.getRequestDispatcher("3.jsp").forward(request, response); else request.getRequestDispatcher("2.jsp").forward(request, response); %> </body>
<body> <h1>登录成功!!!!</h1> <% request.setCharacterEncoding("utf-8"); String sf=request.getParameter("sf"); if(sf.equals("是")){ out.print("欢迎您注册为会员"); } %> </body> <body > <h1>登陆失败!!!</h1> </body>
5.在页面1的表单内输人一个数字N,提交,能够在另一个页面打印N个“欢迎”字符串。
<body> <form action="2.jsp" method="post"> <p style="font-family:宋体;font-size:18;color:black"> 请输入数字:<input type="text" name="number" size=10><br> <br> <br> <input type="submit" name="submit" value="提交"> </form> </body> <body> <% request.setCharacterEncoding("utf-8"); String number = request.getParameter("number"); int a = Integer.parseInt(number); for (int i = 0; i < a; i++) { out.print((i+1)+"欢迎" + "<br>"); } %> </body>
6.在页面1中输入账号和密码,进行登录,如果账号和密码相同,则认为成功登录到页面2,在页面2中显示一个文本框输人用户姓名,输人之后提交,在页面3中显示用户的账号和姓名。
<%@ page contentType="text/html"%> <%@ page pageEncoding="utf-8"%> <HTML> <body> <form name="loginForm" action="2.jsp" method="post"> 请输入账号:<input type="text" name="account"> <br> 请输入密码: <input type="password" name="password"> <br> <input type="button" value="登录" onClick="validate()"> </form> <script type="text/javascript"> function validate() { if (loginForm.account.value == "") { alert("账号不能为空!"); return; } if (loginForm.password.value == "") { alert("密码不能为空!"); return; } if (loginForm.validationCode.value == "") { alert("验证码不能为空,请输入验证码"); loginForm.validationCode.focus(); return; } loginForm.submit(); } </script> </body> </HTML>
<%@ page contentType="text/html"%> <%@ page pageEncoding="utf-8"%> <html> <head> <title>My JSP 'welcome.jsp' starting page</title> </head> <body> <% request.setCharacterEncoding("utf-8"); String id=request.getParameter("user"); String password=request.getParameter("password"); if(id.equals(password)){ request.getRequestDispatcher("3.jsp").forward(request, response); }else{ out.print("登陆失败"); } %> </body> </html>
<%@ page contentType="text/html"%> <%@ page pageEncoding="utf-8"%> <html> <head> <title>My JSP 'index.jsp' starting page</title> </head> <body> <% request.setCharacterEncoding("utf-8"); String name = request.getParameter("user"); %> <form action="shixian.jsp" method="post"> 用户姓名<input type="text" name="uname" /><br> <input type="submit" value="提交" /> <input type="hidden" name="src" value="<%=name%>" /> </form> </body> </html>
<%@ page contentType="text/html"%> <%@ page pageEncoding="utf-8"%> <HTML> <body> <% request.setCharacterEncoding("utf-8"); String src = request.getParameter("src"); String name = request.getParameter("uname"); %> 账号:<%=src%><br> 姓名:<%=name%> </body> </HTML>