Jsp第五次作业

1.教材P78-79 例4-9

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

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
  <head>
    

  </head>
  
  <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="example2.jsp?id=A1001&price=8765">购买</a><br>
   商品编号A1002,价格<%=price %>
   <a href="example2.jsp?id=A1002&price=<%=price %>">购买</a>
  
</p>
  </body>
</html>

 

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

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
  <head>
   

  </head>
  
  <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

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


<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
  <head>
  </head>
  
  <body bgcolor="#ffccff">
  <form action="computer.jsp"method="post name=from">
  <p style="font-famiy:宋体;font-size:18;color:blue">

    输入运算数,选则运算符号:<br>
    <input type=text name="numberOne"size=6/>
    <select name="operator">
    <option selected="selected"value="+"><opting selected="selected"value="-"><option selected="selected"value="/"></select>
    <input type=text name="numberTwo"size=6/>
    <br><input type="submit"name="submit"value="提交"/>
    </from>
  </body>
</html>

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


<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
  <head>
   
    
    <title>My JSP 'computer.jsp' starting page</title>
    
    
  </head>
  
  <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;
  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.println("请输入数字字符");
  }%>
  
  <br>
  </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"%>


<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
  <head>
   

  </head>
  
  <body>
  <form action="Login1.jsp"method="post">
 请输入账号:<input name="account"type="text"><br>
 
 请输入密码:<input name="password"type="password"><br>
<input type="submit"value="登陆">
</form>

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


<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
  <head>
   
  </head>
  
  <body>
<% String account=request.getParameter("account");
String password=request.getParameter("password");
if(account.equals(password)){
response.sendRedirect("welcome.jsp");
}else{
out.print("登录错误"); 
}%>
  </body>
</html>
<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>


<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
  <head>
   
  </head>
  
  <body>

<%out.print("登陆成功,欢迎来到本系统"); %> <br>
  </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"%>


<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
  <head>
   

  </head>
  
  <body>
  <form action="Login1.jsp"method="post">
 请输入账号:<input name="account"type="text"><br>
 
 请输入密码:<input name="password"type="password"><br>
 是否注册会员
  <input type="checkbox" name="huiyuan" value="yes"><input type="checkbox" name="huiyuan" value="no"><br>
<input type="submit"value="登陆"><br>

</form>

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


<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
  <head>
   
  </head>
  
  <body>
<% String account=request.getParameter("account");
String password=request.getParameter("password");
String huiyuan=request.getParameter("huiyuan");

if(account.equals(password)){
out.print("注册成功");
 }else if(account.equals(password)&&huiyuan.equals("yes"))
       {out.print("欢迎您成为会员!");
       }else if(account.equals(password)&&huiyuan.equals("no")) {
out.print("没有成为会员"); 
}else{
out.print("登录错误");}
%>
  </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"%>


<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<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="second.jsp">
    输入一个数:<input type="text" name="shu"><br>
    <input type="submit" value="提交">
    </form>    
  </body>

  </body>
</html>

 

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


<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
  <head>

  </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。

<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>
<html>
  <head>
    <title>first</title>
  </head>  
  <body>
    <form action="panduan.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>second</title>
  </head>  
  <body>
   <%
        request.setCharacterEncoding("utf-8");
        String account = request.getParameter("account");
        String password=request.getParameter("password");
    %>
  <form action="three.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>three</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>
<%@ 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 account=request.getParameter("account");
    String password=request.getParameter("password");
    if(account.equals(password)){
    request.getRequestDispatcher("second.jsp").forward(request,response);
    }else{
    out.print("登录失败!请重试");
    }
     %>     

  </body>
</html>

 

 

 

 

 

 


posted @ 2022-04-16 16:07  计算机1904谢家俊  阅读(22)  评论(0编辑  收藏  举报