为什么我传不过去值,前端取出来一直是null
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>登录页面-学生成绩管理系统-java web实战</title>
<style>
#cont div {
text-align: center;
padding: 15px;
}
#cont div:last-child input:first-child {
margin-right: 30px;
}
#cont div:last-child input:last-child {
margin-left: 30px;
}
</style>
</head>
<body>
<div style="margin-top: 150px">
<jsp:include page="top.jsp"/>
<div id="cont">
<%
String message = (String) request.getAttribute("message");
out.print(message);
if (message != null) {
%>
<h3 style="color: #ff0000;text-align: center">出错信息:${message}</h3>
<%
}
%>
<form action="<%= request.getContextPath()%>/account?method=login" method="post">
<div>
<label for="userName">
用户名:
</label>
<input type="text" name="userName" id="userName"/>
</div>
<div>
<label>
密码:
<input type="password" name="pwd"/>
</label>
</div>
<div>
<input type="submit" value="登录"/>
<input type="button" onclick="resetForm()" value="重置"/>
</div>
</form>
</div>
<jsp:include page="bottom.jsp"/>
</div>
<script>
function resetForm() {
document.forms[0].reset();
}
</script>
</body>
</html>
