<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<%@ taglib prefix="s" uri="http://www.springframework.org/tags" %>
<html>
<style type="text/css">
span{
color:red
}
</style>
<script type="text/javascript">
function submitFn(frm) {
var name = frm.name;
var password = frm.password;
if(name.value==""){
//alert("用户名不能为空")
document.getElementsByName("spanName")[0].innerText="用户名不能为空"
frm.name.focus()
return false;
}else{
document.getElementsByName("spanName")[0].innerText=""
}
if(password.value==""){
//alert("密码不能为空")
document.getElementsByName("spanPwd")[0].innerHTML="密码不能为空"
frm.password.focus()
return false;
}else{
document.getElementsByName("spanPwd")[0].innerHTML="";
}
}
</script>
<body>
<form action="user/login" method="post" onsubmit="return submitFn(this)">
<s:message code="username"/>
<input type="text" name="name" value=""/>
<span name="spanName"></span>
<p>
<s:message code="password"/>
<input type="password" name="password" value="123"/>
<span name="spanPwd"></span>
<p>
<input type="submit" value="<s:message code="submit"/>"/>
</form>
</body>
</html>