JSP第五次上机作业

1.教材P78-79 例4-9

<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>
<html>
  <head>
    <title></title>
  </head>
  
  <body>
    <%
    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="1.4-9-1.jsp?id=A1001&price=8765">购买</a><br>
     商品编号 A1002,价格<%=price %>
     <a href="1.4-9-1.jsp?id=A1002&price=<%=price %>">购买</a>
     </p>
  </body>
</html>
<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>
<html>
  <head>
    <title></title>
  </head>  
  <body>
    <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 %> </b>
     商品价格:<%=price %>
    </p>
  </body>
</html>


2.教材P97 实验2

<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>
<html>
  <head>
    <title></title>
  </head>  
  <body>
    <form action="2.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 value="+"><option value="-"><option value="*"><option value="/"></select>
    <input type=text name="numberTwo" size=6/><br>
    <input type="submit" name="submit" value="提交"/>    
    </form>
    </p>
  </body>
</html>
<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>
<html>
  <head>
    <title></title>
  </head>  
  <body>
    <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("2.97.jsp");
    return;
    }else if(numberTwo==null||numberTwo.length()==0){
    response.sendRedirect("2.97.jsp");
    return;
    }
    try{
    double a=Double.parseDouble(numberOne);
    double b=Double.parseDouble(numberTwo);
    double r=0;
    if(operator.equals("+"))
    r=a+b;
    else if(operator.equals("-"))
    r=a-b;
    else if(operator.equals("*"))
    r=a*b;
    else if(operator.equals("/"))
    r=a/b;
    out.print(a+""+operator+""+b+"="+r);
    }
    catch(Exception e){
    out.print("请输入数字字符");
    }
     %>    
    </p>
  </body>
</html>

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)

<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>
<html>
  <head>   
    <title></title>
    <script type="text/javascript">
        function validate(){
            if(loginForm.uname.value==""&&loginForm.password.value==""){
                alert("账号和密码都不能为空!");
                return;
            }
            if(loginForm.uname.value==""){
                alert("账号不能为空!");
                return;
            }
            if(loginForm.password.value==""){
                alert("密码不能为空!");
                return;
            }
            loginForm.submit();
        }
    </script>
  </head>  
  <body>  
  <form name="loginForm" action="3.test.jsp" method="post">
    账号:<input type="text" name="uname"><br>
    密码:<input type="password" name="password"><br>
    验证码:<input type="text" name="yanzheng"><br>
    输入下图中的字符,不区分大小写<br>
    <img src="image/35452.png"> <br>
    <input type="button" value="登录" onClick="validate()">
   </form>   
  </body>
</html>
<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>
<html>
  <head>   
    <title></title>
  </head>  
  <body>
    <%
   String uname=request.getParameter("uname");
   String password=request.getParameter("password");
   String yanzheng=request.getParameter("yanzheng");
   if(uname!=null&&password!=null&&uname.equals(password)&&yanzheng.equals("jcuv")){
   request.getRequestDispatcher("3.ture.jsp").forward(request,response);
   }else{
   request.getRequestDispatcher("3.false.jsp").forward(request,response);
   }
    %>
  </body>
</html>
<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>
<html>
  <head>
    <title>登录成功</title>
  </head>  
  <body>
    <p style="font-family:宋体;font-size:25;color:blue">登录成功</p>
  </body>
</html>
<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>
<html>
  <head>
    <title>登录失败</title>
  </head>  
  <body>
    <p style="font-family:宋体;font-size:25;color:red">登录失败</p>
  </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”。

<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>
<html>
  <head>   
    <title></title>
    <script type="text/javascript">
        function validate(){
            if(loginForm.uname.value==""&&loginForm.password.value==""){
                alert("账号和密码都不能为空!");
                return;
            }
            if(loginForm.uname.value==""){
                alert("账号不能为空!");
                return;
            }
            if(loginForm.password.value==""){
                alert("密码不能为空!");
                return;
            }
            loginForm.submit();
        }
    </script>
  </head>  
  <body>  
  <form name="loginForm" action="3.test.jsp" method="post">
    账号:<input type="text" name="uname"><br>
    密码:<input type="password" name="password"><br>
    验证码:<input type="text" name="yanzheng"><br>
    输入下图中的字符,不区分大小写<br>
    <img src="image/35452.png"> <br>
    是否注册会员
  <input type="checkbox" name="huiyuan" value="yes"><input type="checkbox" name="huiyuan" value="no"><br>
    <input type="button" value="登录" onClick="validate()">
   </form>   
  </body>
</html>
<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>
<html>
  <head>
    <title>登录成功</title>
  </head>  
  <body>
    <p style="font-family:宋体;font-size:25;color:blue">登录成功</p>
    <%
       String huiyuan=request.getParameter("huiyuan");
       if(huiyuan.equals("yes"))
       out.print("欢迎您成为会员!");
     %>     
  </body>
</html>

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。

<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>
<html>
  <head>
    <title>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</title>
  </head>  
  <body>
    <form action="5.t.jsp">
    输入一个数:<input type="text" name="shu"><br>
    <input type="submit" value="提交">
    </form>    
  </body>
</html>
<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>
<html>
  <head>
    <title>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</title>
  </head>  
  <body>
    <%
    String shu=request.getParameter("shu");
    int n=Integer.parseInt(shu); 
    for(int i=0;i<n;i++){
    out.print("欢迎"+"!! ");
    }
     %>
  </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。(转发)request.getRequestDispacher.....forward

<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>
<html>
  <head>
    <title>页面1</title>
  </head>  
  <body>
    <form action="6.yy.jsp">
    账号:<input type="text" name="account"><br>
    密码:<input type="password" name="password"><br>
    <input type="submit" value="登录">
    </form>
  </body>
</html>
<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>
<html>
  <head>
    <title>判断登录</title>
  </head>  
  <body>  
    <%
    String account=request.getParameter("account");
    String password=request.getParameter("password");
    if(account.equals(password)){
    request.getRequestDispatcher("6.ok.jsp").forward(request,response);
    }else{
    out.print("登录失败!请重试");
    }
     %>     
  </body>
</html>
<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>
<html>
  <head>
    <title>页面2</title>
  </head>  
  <body>
   <%
        request.setCharacterEncoding("utf-8");
        String account = request.getParameter("account");
        String password=request.getParameter("password");
    %>
  <form action="6.tt.jsp">
  登录成功!<br>
  请输入用户名:<input type="text" name="uname">
  <input type="hidden" name="src1" value="<%=account%>" />
  <input type="hidden" name="src2" value="<%=password%>" />
  <input type="submit" value="提交">
  </form>
  </body>
</html>
<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>
<html>
  <head>
    <title>页面3</title>
  </head>  
  <body>
    <%
    String uname=request.getParameter("uname");
    String src1=request.getParameter("src1");
    String src2=request.getParameter("src2");
     %>
     <%=uname %>用户信息如下:<br>
     账号:<%=src1 %><br>
     密码:<%=src2 %>
  </body>
</html>

 

posted @ 2022-04-15 18:57  小猪哏哏  阅读(18)  评论(0编辑  收藏  举报