📄 index.jsp
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<%@ page language="java" pageEncoding="GBK"%>
<%@ taglib uri="http://jakarta.apache.org/struts/tags-bean"
prefix="bean"%>
<%@ taglib uri="http://jakarta.apache.org/struts/tags-html"
prefix="html"%>
<%@ taglib uri="http://jakarta.apache.org/struts/tags-logic"
prefix="logic"%>
<html>
<head>
<title>登陆界面</title>
<script type="text/javascript">
function validate_form() {
var validity = true;
if(!check_empty(document.getElementById("username").value)){
validity=false;
alert("用户名不能为空！");
}else if(!check_empty(document.getElementById("userpwd").value)){
validity=false;
alert("密码不能为空！");
}
return validity;
}
function check_empty(str) {
return (str.length > 0);
}
</script>
</head>
<body>
<div align="center">
<html:form action="/login" onsubmit="return validate_form()"
method="post">
<%@include file="header.jsp"%>
<table width="400" height="300">
<tr>
<td align="center">
<h2>
登陆界面
</h2>
</td>
</tr>
<tr>
<td>
<table align="center">
<tr>
<font color="red"> <logic:present name="errormessage">
<bean:write name="errormessage" />
</logic:present> </font>
<td>
用户名 :
</td>
<td>
<html:text property="username" />
<html:errors property="username" />
</td>
</tr>
<tr>
<td>
用户密码 :
</td>
<td>
<html:password property="userpwd" />
<html:errors property="userpwd" />
</td>
</tr>
<tr>
<td>
<html:submit value="登陆" />
</td>
<td>
<html:reset value="重置" />
</td>
</tr>
</table>
</td>
</tr>
<tr>
<td align="center" valign="bottom">
<%@include file="footer.jsp"%>
</td>
</tr>
</html:form>
</div>
</body>
</html>
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