jsp第7次作业

1.教材P78-79  例4-9

     

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<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
  <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="shopping.jsp?id=A1001&price=8765">购买</a><br>
        商品编号A1002,价格<%=price %>
     <a href="shopping.jsp?id=A1002&price=<%=price %>">购买</a>
     </p>
  </body>
</html>
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<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
    <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 %>
        </b>
        </p>
  </body>
</html>
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2. 教材P97 实验2

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<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
  <head>
  </head>
  <body>
    <form action="yunsuan.jsp" method=post name=form>
    输入运算数,选择运算符:<br>
    <input type=text name="numberOne" size=6 />
    <select name="op">
     <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" name="submit" value="提交"/>
    
    </form>
  </body>
</html>
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<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
  <head>
  </head>
  <body>
   <%
    request.setCharacterEncoding("utf-8");
   String numberOne=request.getParameter("numberOne");
   String numberTwo=request.getParameter("numberTwo");
   String op=request.getParameter("op");
   if(numberOne==null||numberOne.length()==0){
        response.sendRedirect("jia.jsp");
        return;
   }
   else if(numberTwo==null||numberTwo.length()==0){
        response.sendRedirect("jia.jsp");
        return;
   }
   try{
     double a=Double.parseDouble(numberOne);
     double b=Double.parseDouble(numberTwo);
     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.println("请输入数字字符");
   }
    %>
  </body>
</html>
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 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)

   

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<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>

<html>
<body>
    <script type="text/javascript">
        function validate() {
            if (loginForm.account.value == "") {
                alert("账号不能为空!");
                return;
            } else if (loginForm.password.value == "") {
                alert("密码不能为空!");
                return;
            }
            loginForm.submit();
        }
    </script>
    <form action="zhanghao.jsp" name="loginForm" method="post">
        账号:<input type="text" name="account" placeholder="请输入账号"/><br> 
        密码:<input type="password" name="password" placeholder="请输入密码"/><br>
        <input type="button" value="登录"onClick="validate()">
    </form>
 </body>
</html>
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<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>

<html>
  <body>
  <%
  String account=request.getParameter("account");
  String password=request.getParameter("password");
  if(account.equals(password)){
  request.getRequestDispatcher("ok.jsp").forward(request,response);
  }
  else{
  response.sendRedirect("no.jsp");
  }
   %>
  </body>
</html>
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<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>
 <%
    request.setCharacterEncoding("UTF-8");
    response.setCharacterEncoding("UTF-8");
    %>
<html>
  <body>
    登陆成功!
  </body>
</html>
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<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>
 <%
    request.setCharacterEncoding("UTF-8");
    response.setCharacterEncoding("UTF-8");
    %>
<html>
  <body>
         登陆失败!
  </body>
</html>

  

 

 

 

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”。

 

  

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<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>
<!DOCTYPE HTML >
<html>
<head>
<title></title>
</head>
<body>
    <script>

        function lg() {
            if (form.user.value == "") {
                alert("账号不能为空!");
                return;
            }
            if (form.password.value == "") {
                alert("密码不能为空!");
                return;
            }
            if (form.validationCode.value == "") {
                alert("验证码不能为空,请输入验证码");
                form.validationCode.focus();
                return;
            }
            if (form.validationCode.value != form.validationCode1.value) {
                alert("请输入正确的验证码");
                form.validationCode.focus();
                return;
            }

            form.submit();
        }
    </script>

    <%
        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 action="login.jsp" method="post" name="form">
        用户名:<input type="text" name="user" /> <br>
        密码:<input type="password" name="password" /><br>
         验证码:<input type="text" name="validationCode"
                    onKeyDown="if(event.keyCode==13){form.submit.focus();}" size="6">
                    <input type="button" name="validationCode1" size="1"
                    value="<%=intsum%>"><br>
                是否注册会员:<input type="radio" name="lg" value="是" />是
                <input type="radio" name="lg" value="否" />否 <br>           
            <input type="submit" value="登录" onclick="yz()" />
<br>   
    </form>
</body>
</html>
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<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>
<!DOCTYPE HTML >
<html>
  <head>
    <title>My JSP 'index.jsp' starting page</title>
  </head>
  <body>
  <%
      request.setCharacterEncoding("utf-8");
      
        String user = request.getParameter("user") == null ? "" : request.getParameter("user");
        String password = request.getParameter("password") == null ? "": request.getParameter("password");
        
        if (user.equals(password)) {
            request.getRequestDispatcher("03ok.jsp").forward(request, response);
        } else {
            request.getRequestDispatcher("03no.jsp").forward(request, response);
        }
    %>
  
  
  </body>
</html>
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<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>
<!DOCTYPE HTML >
<html>
  <head>
    <title>My JSP 'index.jsp' starting page</title>
  </head>
  <body>
  <%
      request.setCharacterEncoding("utf-8");
      
        String user = request.getParameter("user") == null ? "" : request.getParameter("user");
        String password = request.getParameter("password") == null ? "": request.getParameter("password");
        
        if (user.equals(password)) {
            request.getRequestDispatcher("03ok.jsp").forward(request, response);
        } else {
            request.getRequestDispatcher("03no.jsp").forward(request, response);
        }
    %>
  
  
  </body>
</html>
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<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
  <head>
  </head>
  <body>
     <h1>登陆失败</h1>
      <% request.setCharacterEncoding("utf-8");%>
  </body>
</html>
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 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。

   

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<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>
<%
    String path = request.getContextPath();
    String basePath = request.getScheme() + "://" + request.getServerName() + ":" + request.getServerPort()
            + path + "/";
%>

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<title>My JSP 'login.jsp' starting page</title>
</head>

<body>
    <form action="second.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=6><br> <br>
            <br> <input type="submit" name="submit" value="提交">
    </form>
</body>
</html>
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<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>
<%
    String path = request.getContextPath();
    String basePath = request.getScheme() + "://"
            + request.getServerName() + ":" + request.getServerPort()
            + path + "/";
%>

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<title>My JSP 'index.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>
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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。

 

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<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
  <head>
   
    <title>My JSP 'index.jsp' starting page</title>
   
  </head>
  
  <body>
  <script>

        function lg() {
               if (form.user.value == "") {
                alert("用户名不能为空!");
                form.user.focus();
                return;
            }
            if (form.password.value == "") {
                alert("密码不能为空!");
                form.password.focus();
                return;
            }
        }
    </script>
    <form action="index2.jsp" method="post" name="form">
    账号:<input type="text" name="user"/><br>
    密码:<input type="password" name="password"/><br>
    <input type="submit" value="登录"/>
    </form>
    </body>
</html>
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<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
  <head>
   
    <title>My JSP 'index.jsp' starting page</title>
   
  </head>
  
  <body>
  <script>

        function lg() {
               if (form.user.value == "") {
                alert("用户名不能为空!");
                form.user.focus();
                return;
            }
            if (form.password.value == "") {
                alert("密码不能为空!");
                form.password.focus();
                return;
            }
        }
    </script>
    <form action="index2.jsp" method="post" name="form">
    账号:<input type="text" name="user"/><br>
    密码:<input type="password" name="password"/><br>
    <input type="submit" value="登录"/>
    </form>
    </body>
</html>
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<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
  <head>
    
    <title>My JSP 'ok.jsp' starting page</title>
   
  </head>
  
  <body>
   <%
request.setCharacterEncoding("UTF-8");  
String user=request.getParameter("user");
 %>

    <h1> 登陆成功!</h1>
    <form action="index3.jsp" method="post" name="form">
        用户姓名:<input type="text" name="username"/><br>
        <input type="submit" value="提交"/><br>
        <input type="hidden" name="user" value="<%= user %>"/>
     </form>
  
  </body>
</html>
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<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
  <head>
   
    <title>My JSP 'no.jsp' starting page</title>
   
  </head>
  
  <body>
  <%
    request.setCharacterEncoding("UTF-8");
   
    %>
      <h1> 登陆失败!</h1>
   
  </body>
</html>
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<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
  <head>
   
    <title>My JSP 'index3.jsp' starting page</title>
    
  </head>
  
  <body>
   <%
     request.setCharacterEncoding("UTF-8");
     String user=request.getParameter("user");
     String username=request.getParameter("username");
     out.print("账号:"+user+"</br>"+"用户姓名:"+"&nbsp&nbsp&nbsp"+username);
     
   %>
  </body>
</html>
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posted @ 2022-07-03 22:00  欧阳晨  阅读(3)  评论(0编辑  收藏  举报