JSP第五次作业

1.教材P78-79 例4-9
<body bgcolor="#ffc0cb">
<%
    double price=98.78;
%>
<p style="font-family: 宋体;font-size: 36px; color: aquamarine">
    商品编号A10001,价格 8765
    <a href="8receive.jsp?id=A10001&price=8765">购买</a><br>
    商品编号A10002,价格<%=price %>
    <a href="8receive.jsp?id=A10002&price=<%=price %>">购买</a><br>
</body>
<body bgcolor="#ffc0cb">
<p style="font-family: 宋体;font-size: 36px;color: aquamarine">
        <% String id=request.getParameter("id");
    String price=request.getParameter("price");
    out.print("商品编号:"+id+"</br>"+"商品价格:"+price);
     %>
</p>
</body>

 

 

 

 2.教材P97 实验2

<body BGCOLOR="#ffc0cb">
<p>请输入运算数,选择符号</p>
<form action="9receive.jsp" method="post">
  <input type="text" name="num1" id="num1">
  <select name="sign" name="sign" id="sign">
    <option value="+">加</option>
    <option value="-">减</option>
    <option value="*">乘</option>
    <option value="/">除</option>
  </select>
  <input type="text" name="num2" id="num2">
  <br><br>
  <input type="submit" value="提交">
</form>
</body>
<body bgcolor="#ffc0cb">
<%
    request.setCharacterEncoding("utf-8");
    String num1 = request.getParameter("num1");
    String num2 = request.getParameter("num2");
    String sign = request.getParameter("sign");
    if (num1 == null || num1.length() == 0) {
        response.sendRedirect("test9.jsp");
        return;
    } else if (num2 == null || num2.length() == 0) {
        response.sendRedirect("test9.jsp");
        return;
    }
    try {
        double n1 = Double.parseDouble(num1);
        double n2 = Double.parseDouble(num2);
        double s = 0;
        if (sign.equals("+"))
            s = n1 + n2;
        else if (sign.equals("-"))
            s = n1 - n2;
        else if (sign.equals("*"))
            s = n1 * n2;
        else if (sign.equals("/"))
            s = n1 / n2;
        out.print(n1 + "" + sign + "" + n2 + "=" + s);
    } catch (Exception e) {
        out.print("输入错误");
    }
%>
</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)

<head>
    <title>Title</title>
    <script type="text/javascript">
        function login(){
            if(logindo.admin.value==""){
                alert("请输入账号");
                return;
            }
            else if(logindo.pass.value==""){
                alert("请输入密码");
                return;
            }
            logindo.submit();
        }
    </script>
</head>
<body bgcolor="#ffc0cb">
<form action="10receive.jsp" name ="logindo">
    <p style="font-family: 宋体;font-size:16px; color:aquamarine">
        账号:
        <input type="text" name="admin" size=12/>
        密码:
        <input type="password" name="pass" size=12/>


        <br><input type="button" value="登录" onclick="login()"/>
</form>


</body>
<body bgcolor="#ffc0cb">
<%
    String admin=request.getParameter("admin");
    String pass=request.getParameter("pass");
    if(admin.equals(pass)){
        request.getRequestDispatcher("Yes.jsp").forward(request, response);
    }
    else{
        response.sendRedirect("No.jsp");
    }
%>
</body>
<body bgcolor="#ffc0cb">
恭喜!登陆成功。
</body>
<body bgcolor="#ffc0cb">
抱歉!登陆失败。
</body>

 

 

 

 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”。

<head>
    <title>Title</title>
    <script type="text/javascript">
        function login(){
            if(logindo.admin.value==""){
                alert("请输入账号");
                return;
            }
            else if(logindo.pass.value==""){
                alert("请输入密码");
                return;
            }
            logindo.submit();
        }
    </script>
</head>
<body bgcolor="#ffc0cb">
<form action="10receive.jsp" name ="logindo">
    <p style="font-family: 宋体;font-size:16px; color:aquamarine">
        账号:
        <input type="text" name="admin" size=12/>
        密码:
        <input type="password" name="pass" size=12/>
        是否注册会员:
        <input type="radio" name="vip" value="注册"/>注册
        <input type="radio" name="vip" value="不注册"/>不注册
        <br><input type="button" value="登录" onclick="login()"/>
</form>


</body>
<body>

<h1>恭喜!登陆成功。</h1>
<%
    String []vip=request.getParameterValues("vip");
    for(int i=0;i<vip.length;i++){
        if(vip[i].equals("注册")){
            out.print("注册为会员");
        }
    } %>
</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。

<body bgcolor="#ffc0cb">
<form action="11receive.jsp">
    <input  type="text" name="num"  />
    <input type="submit" value="提交" />
</form>
</body>
<body bgcolor="#ffc0cb">
<%
    String number=request.getParameter("num");
    int i=Integer.parseInt(number);
    for(int j=0;j<i;j++){
        out.print("欢迎"+"<br>");
    }
%>
</body>

 

 

 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。

<head>
    <title>Title</title>
    <script type="text/javascript">
        function login(){
            if(logindo.admin.value==""){
                alert("请输入账号");
                return;
            }
            else if(logindo.pass.value==""){
                alert("请输入密码");
                return;
            }
            logindo.submit();
        }
    </script>
</head>
<body bgcolor="#ffc0cb">
<form action="1.jsp" name ="logindo">
    <p style="font-family: 宋体;font-size:16px; color:aquamarine">
        账号:
        <input type="text" name="admin" size=12/>
        密码:
        <input type="password" name="pass" size=12/>
        是否注册会员:
        <input type="radio" name="vip" value="注册"/>注册
        <input type="radio" name="vip" value="不注册"/>不注册
        <br><input type="button" value="登录" onclick="login()"/>
</form>
</body>
<body bgcolor="#ffc0cb">
恭喜!登陆成功。
<hr>
<%
    request.setCharacterEncoding("utf-8");
    String zh=request.getParameter("zh");
    String yh=request.getParameter("user");
    out.print("用户: "+yh+" 账号: "+zh);
%>

</body>
<body bgcolor="#ffc0cb">
<%
    request.setCharacterEncoding("utf-8");
    String zh=request.getParameter("admin");
    String yh=request.getParameter("pass");
    out.print("账号"+yh+"密码"+zh);
%>
<form action="Yes.jsp">
    用户名<input type="text" name="user">
    <input type="submit" value="提交" >
    <input name="zh" type="hidden"  value="<%=zh%>">
</form>
</body>

 

 

 

 

 

posted @ 2022-04-17 19:57  Vending  阅读(30)  评论(0编辑  收藏  举报