4.14学习总结——Lab02-1
<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>登录</title>
</head>
<style>
body
{
background: url(images/background.jpg);
background-size:100% 100% ;
background-attachment: fixed
}
</style>
<script type="text/javascript">
window.onload = function check( )
{
document.getElementById("submit_login").onclick = function()
{
var str1 = form1.username.value;
var str2 = form1.password.value;
if (str1 == ""||str2 == "") {
alert("用户名或者密码为空！");
form1.username.focus();
}
return;
};
};
</script>
<body>
<form action="check.jsp" method="post" id="form1" name = "form1" onsubmit="">
<table align="center" valign="middle">
<tr><td id="top">用户登录 </td></tr>
<tr>
<td>用户名:</td>
<td><input type="text" name="username" id = "username"value=""> </td>
</tr>
<tr>
<td> 密码：</td>
<td><input type="password" name="password" id = "password"> </td>
</tr>
<tr>
<td colspan="2" align="center"><input type="submit" value="确定" name="submit_login" id="submit_login">
<input type="reset" > </td>
</tr>
</table>
</form>
</body>
</html>
pageEncoding="UTF-8"%>
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>登录</title>
</head>
<style>
body
{
background: url(images/background.jpg);
background-size:100% 100% ;
background-attachment: fixed
}
</style>
<script type="text/javascript">
window.onload = function check( )
{
document.getElementById("submit_login").onclick = function()
{
var str1 = form1.username.value;
var str2 = form1.password.value;
if (str1 == ""||str2 == "") {
alert("用户名或者密码为空！");
form1.username.focus();
}
return;
};
};
</script>
<body>
<form action="check.jsp" method="post" id="form1" name = "form1" onsubmit="">
<table align="center" valign="middle">
<tr><td id="top">用户登录 </td></tr>
<tr>
<td>用户名:</td>
<td><input type="text" name="username" id = "username"value=""> </td>
</tr>
<tr>
<td> 密码：</td>
<td><input type="password" name="password" id = "password"> </td>
</tr>
<tr>
<td colspan="2" align="center"><input type="submit" value="确定" name="submit_login" id="submit_login">
<input type="reset" > </td>
</tr>
</table>
</form>
</body>
</html>
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