第七周作业
1.教材P78-79 例4-9
<html> <head> <base href="<%=basePath%>"> </head> <body> <body bgcolor = #ffccff> <% double price =98.78; %> <p style = "font-family:宋体;font-size:36;color:blue"> 商品编号 A1001，价格8765 <a href = "receive.jsp?id=A1001&price=8765">购买</a><br> 商品编号A1002，价格<%=price %> <a href = "receive.jsp?id=A1002&price=<%=price%>">购买</a> </p> </body> </html>
<html> <head> <base href="<%=basePath%>"> </head> <body> <body bgcolor = #EEEEFF> <p style = "font-family:宋体;font-size:36;color:blue"> <% String id = request.getParameter("id"); String price = request.getParameter("price"); %> <b>商品编号:<%=id%><br> 商品价格:<%=price %> </p> </body> </html>
2.教材P97 实验2
<html> <head> <base href="<%=basePath%>"> <title>My JSP 'index.jsp' starting page</title> = </head> <body bgcolor=#ffccff> <form action="computer.jsp" method=post name=form> <p style="font-family:宋体;font-size:18;color:blue"> 输入运算数,选择运算符号:<br> <input type=text name="numberOne" size=6/> <select name="operator"> <option selected="selected" value="+">加 <option value="-">减 <option value="*">乘 <option value="/">除 </select> <input type=text name="numberTwo" size=6/> <br><input type="submit" value="提交"> </form> </body> </html>
<body bgcolor=cyan> <p style="font-family:宋体;font-size:18;color:black"> <% String numberOne=request.getParameter("numberOne"); String numberTwo=request.getParameter("numberTwo"); String operator=request.getParameter("operator"); if(numberOne==null||numberOne.length()==0){ response.sendRedirect("input.jsp"); return; } else if(numberTwo==null||numberTwo.length()==0){ response.sendRedirect("input.jsp"); return; } try{ double a=Double.parseDouble(numberOne); double b=Double.parseDouble(numberTwo); double r=0; if(operator.equals("+")) r=a+b; if(operator.equals("-")) r=a-b; if(operator.equals("*")) r=a*b; if(operator.equals("/")) r=a/b; out.print(a+""+operator+""+b+"="+r); } catch(Exception e){ out.println("请输入数字字符"); } %> </body>
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="target.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("admin") && upwd.equals("admin")) request.getRequestDispatcher("success.jsp").forward(request, response); else request.getRequestDispatcher("fail.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。
<html> <head> <base href="<%=basePath%>"> <title>My JSP 'index.jsp' starting page</title> </head> <body> <form action="welcome.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> </html>
<html> <head> <base href="<%=basePath%>"> <title>My JSP 'welcome.jsp' starting page</title> </head> <body> <% request.setCharacterEncoding("utf-8"); String number = request.getParameter("number"); int a = Integer.parseInt(number); for (int i = 0; i < a; i++) { out.print("欢迎" + "<br>"); } %> </body> </html>
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。
<body> <form action="page2.jsp" method="post" name="login"> 账号:<input type="text" name="id" /><br> 密码:<input type="password" name="password" /><br> <input type="button" value="登录" style="margin-left: 100px" onclick="panduan()" /> <script type="text/javascript"> function panduan(){ if(login.id.value==""){ alert("账号不能为空"); return; } if(login.password.value==""){ alert("密码不能为空"); return; } login.submit(); } </script> </form> </body>
<body> <% request.setCharacterEncoding("utf-8"); String id=request.getParameter("id"); String password=request.getParameter("password"); if(id.equals(password)){ request.getRequestDispatcher("page3.jsp").forward(request, response); }else{ out.print("登陆失败"); } %> </body>
<body> <% request.setCharacterEncoding("utf-8"); String name = request.getParameter("id"); %> 登录成功到页面2！！！ <form action="page4.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>
<body> <% request.setCharacterEncoding("utf-8"); String src = request.getParameter("src"); String name = request.getParameter("uname"); %> 账号：<%=src%><br> 姓名：<%=name%> </body>
