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📄 index.jsp

📁 JSP的网上商城的代码。只是小部分。希望大家能够多看看。一起学习。
💻 JSP
字号:
<%@ page contentType="text/html; charset=gb2312" language="java" import="java.sql.*" errorPage="" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312" />
<title>管理员登陆</title>
<style type="text/css">
<!--
.STYLE2 {font-size: 12px}
.STYLE3 {font-size: 12px}
.STYLE5 {
	font-family: "Times New Roman", Times, serif;
	font-size: 16px;
	font-weight: bold;
}
-->
</style>
</head>

<body>
<div align="center">
  <script language="JavaScript" type="text/javascript">
function check()
{
	if(document.form.username.value == "")
	{
		alert("用户名不能为空!");
		document.form.username.focus();
		return false;
	}
	if(document.form.username.value != "")
	{
		var patrn=/^[a-zA-Z]{1}(\w){0,19}$/; 
		if (!patrn.exec(document.form.username.value)) 
		{
			alert("用户名只能由字母、数字和下划线组成!必须以字母开头,长度不得超过20个字符!");
			return false
		} 
	}
	if(document.form.passwd.value == "")
	{
		alert("密码不能为空!");
		document.form.passwd.focus();
		return false;
	}	
	if(document.form.passwd.value != "")
	{
		var patrn=/^(\w){1,20}$/; 
		if (!patrn.exec(document.form.passwd.value)) 
		{
			alert("密码只能由字母、数字和下划线组成!长度为1到20个字符!");
			return false
		} 
	}
}
</script>
  
  <%session.setAttribute("AdminId",null);%>
<span class="STYLE5">管理员登录</span></div>
<form action="backcheck.jsp" method="post" name="form" id="form" onSubmit="return check()" >

 
  <p align="center"><span class="STYLE2">用户名
    <label>      </label>
    </span>
    <label>
    <input name="username" type="text" id="username" />
    </label>
  </p>
  <p align="center"><span class="STYLE3">密码 &nbsp;  
      <label>      </label>
  </span>
    <span class="STYLE3">
    <label>    </label>
    </span>
    <span class="STYLE3">
    <label>    </label>
    </span><span class="STYLE3"><label></label>
    </span>
    <label>
    <input name="passwd" type="password" id="passwd" />
    </label>
  </p>
  <p align="center"> 
&nbsp;&nbsp;

    &nbsp;&nbsp; 
    <label>
    <input name="Submit" type="submit" value="登录" />
    </label>
	&nbsp;&nbsp;&nbsp;
    <label>
    <input type="reset" name="Submit2" value="重置" />
    </label>
  </p>
  <p align="center">&nbsp;</p>
</form>
</body>
</html>

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