jsp第七周作业

1.教材P78-79 例4-9

<%@ page contentType="text/html"%>
<%@ page pageEncoding="utf-8"%>
<html>
  <head>
    
    
    <title>My JSP 'index.jsp' starting page</title>
  </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="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>
<%@ page contentType="text/html"%>
<%@ page pageEncoding="utf-8"%>
<html>
  <head>
    
    
    <title>My JSP 'index.jsp' starting page</title>
  </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 %>
   </b>
   </p>
  </body>
</html>

 

 

 

 

 

 2.教材P97 实验2

<%@ page contentType="text/html"%>
<%@ page pageEncoding="utf-8"%>
<HTML><body bgcolor=#ffccff>
    <form action="computer.jsp" method=post name=form>
    <p style="font一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="+"><option value="-"><option value="*"><option value="/"></select>
        <input type = text name ="numberTwo" size=6/> 
        <br><input type= "submit" name = "submit"value="提交"/>
    </p>
    </form>
</body>
</HTML>
<%@ page contentType="text/html"%>
<%@ page pageEncoding="utf-8"%>
<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;
     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("请输人数字字符");
}
%>

</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>

<body>
    <script type="text/javascript">
        function validate() {
            if (loginForm.id.value == "") {
                alert("账号不能为空");
                return;
            } else if (loginForm.mi.value == "") {
                alert("密码不能为空");
                return;
            }
            loginForm.submit();
        }
    </script>
    <form name="loginForm" action="panduan.jsp" method="post">
        请输入相同的账号密码 <br> 账号: <input type="text" name="id" value="请输入账号">
        <br> 密码: <input type="password" name="mi" value="请输入密码">
        <br> <input type="button" name="admir" value="登录"
            onClick="validate()">
    </form>

</body>

</html>
<%@ 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>
  
  <body>
    登录失败!
  </body>
</html>
<%@ 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>
  
  <body>
    登录成功!
  </body>
</html>
<%@ page language="java" import="java.util.*" pageEncoding="ISO-8859-1"%>
<%
    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>

</head>

<body>
    <%
        request.setCharacterEncoding("utf-8");
        String id = request.getParameter("id");
        String mi = request.getParameter("mi");
        if (id.equalsIgnoreCase(mi)) {
            request.getRequestDispatcher("ok.jsp").forward(request,
                    response);
        } else {
            request.getRequestDispatcher("no.jsp").forward(request,
                    response);
        }
    %>
</body>
</html>
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head>
    <title>Title</title>
</head>
<body>
    <form action="wellcome.jsp" method="post">
        请输入欢迎个数:<input type="text" name="wellcome"><br>
        <input type="submit" value="提交">
    </form>
</body>
</html>


<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head>
    <title>欢迎</title>
</head>
<body>
        <%
            String wellcome=request.getParameter("wellcome");
            int num=Integer.parseInt(wellcome);
            for (int i=1;i<=num;i++){
                out.println("欢迎");
            }
        %>
</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 >
<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" /><input type="radio" name="lg" value="否" /><br>           
            <input type="submit" value="登录" onclick="yz()" />
<br>   
    </form>
</body>
</html>
<%@ 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>
<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
  <head>
  </head>
  <body>
     <h1>登陆成功</h1>
      <%
    request.setCharacterEncoding("utf-8");
        String lg=request.getParameter("lg");
        if(lg.equals("")){
            out.print("欢迎您注册为会员");
        }
    
        
        
        
         
    %>
  </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>
     <h1>登陆失败</h1>
      <% request.setCharacterEncoding("utf-8");%>
  </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 >
<html>
  <head>
    <title>My JSP 'index.jsp' starting page</title>
  </head>
  <body>
  <form action="index1.jsp" method="post">
  <input  type="text" name="num"  />
  <input type="submit" value="提交" />
  </form>
  
  
  </body>
</html>


<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>
<!DOCTYPE HTML >
<html>
  <head>
    <title>My JSP 'index.jsp' starting page</title>
  </head>
  <body>
  <%
  String string=request.getParameter("num");
  int i=string==null? -1:Integer.parseInt(string);
  for(int j=0;j<i;j++){
  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

<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>
<!DOCTYPE HTML >
<html>
<head>
<title>My JSP 'index.jsp' starting page</title>
</head>
<body>
    <script>
        function yz() {
            if (form.zh.value == "") {
                alert("用户名不能为空!");
                form.zh.focus();
                return;
            }
            if (form.password.value == "") {
                alert('密码不能为空!');
                form.password.focus();
                return;
            }
            if(form.zh.value==form.password.value){
            form.submit();
            }else{
            alert('登陆失败');
            form.password.focus();
            return;
            }
        }
    </script>

    <form action="index1.jsp" method="post" name="form">
        <table>
            <tr>
                <td>账号</td>
                <td><input type="text" name="zh" />
                </td>
            </tr>
            <tr>
                <td>密码</td>
                <td><input type="password" name="password" />
                </td>
            </tr>
            <tr>
                <td><input type="button" value="登录" onclick="yz()" />
                </td>
            </tr>
        </table>
    </form>
</body>
</html>


<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>
<!DOCTYPE HTML >
<html>
<head>
<title>My JSP 'index.jsp' starting page</title>
</head>
<body>
<%
String zh=request.getParameter("zh");
 %>

    <form action="index2.jsp" method="post">
        <input type="text" name="name" /> 
        <input type="submit" value="提交" />
        <input type="hidden" name="zh" value="<%=zh %>"/>
    </form>
    
</body>
</html>


<%@ 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 zh=request.getParameter("zh");
  String name=request.getParameter("name");
  out.print("用户姓名:"+name+"<br>"+"用户账号:"+zh);
  %>
  
  
  </body>
</html>

 

 

 

posted @ 2022-04-16 22:57  张秋菊  阅读(27)  评论(0编辑  收藏  举报