<%@ page language="java" import="java.util.*" pageEncoding="gb2312"%>
<%
String path = request.getContextPath();
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
%><!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<base href="<%=basePath%>">
<title>My JSP 'useradd.jsp' starting page</title>
<meta http-equiv="pragma" content="no-cache">
<meta http-equiv="cache-control" content="no-cache">
<meta http-equiv="expires" content="0">
<meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
<meta http-equiv="description" content="This is my page">
<!--
<link rel="stylesheet" type="text/css" href="styles.css">
-->
<script type="text/javascript">
function submitForm(){
if(document.form1.username.value=""){
alert("请输入姓名");
document.form1.username.focus();
return false;
}else if(document.form1.password.value=""){
alert("请输入密码");
document.form1.password.focus();
return false;
}else{
return true;
}
}
</script>
</head>
<body>
<center><h2>增加人员信息</h2> <br>
<form name="form1" action="/noframe/AddServlet" method="post" >
人员姓名:<input type="text" name="username">
登录密码:<input type="password" name="password"><br>
<input type="submit" name="提交" value="提交" onclick="submitForm()">这里好像不执行页面直接跳转
<input type="reset" name="重置" value="清空">
</form>
</center>
</body>
</html>
<%
String path = request.getContextPath();
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
%><!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<base href="<%=basePath%>">
<title>My JSP 'useradd.jsp' starting page</title>
<meta http-equiv="pragma" content="no-cache">
<meta http-equiv="cache-control" content="no-cache">
<meta http-equiv="expires" content="0">
<meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
<meta http-equiv="description" content="This is my page">
<!--
<link rel="stylesheet" type="text/css" href="styles.css">
-->
<script type="text/javascript">
function submitForm(){
if(document.form1.username.value=""){
alert("请输入姓名");
document.form1.username.focus();
return false;
}else if(document.form1.password.value=""){
alert("请输入密码");
document.form1.password.focus();
return false;
}else{
return true;
}
}
</script>
</head>
<body>
<center><h2>增加人员信息</h2> <br>
<form name="form1" action="/noframe/AddServlet" method="post" >
人员姓名:<input type="text" name="username">
登录密码:<input type="password" name="password"><br>
<input type="submit" name="提交" value="提交" onclick="submitForm()">这里好像不执行页面直接跳转
<input type="reset" name="重置" value="清空">
</form>
</center>
</body>
</html>
都改成
document.getElementById("username").value ==""试试或者把<form name="form1" action="/noframe/AddServlet" method="post" >
改成<form name="form1" action="/noframe/AddServlet" method="post" onsubmit="submitForm()">
然后下面的onclick去掉
<script type="text/javascript">
function submitForm(){
if(document.getElementById("username").value==""){
alert("请输入姓名");
document.form1.username.focus();
return false;
}else if(document.getElementById("password").value==""){
alert("请输入密码");
document.form1.password.focus();
return false;
}else{
return true;
}
}
</script>
</head>
<body>
<center> <h2>增加人员信息 </h2> <br>
<form name="form1" action="/noframe/AddServlet" method="post" >
人员姓名: <input type="text" id="username" name="username">
登录密码: <input type="password" id="password" name="password"> <br>
<input type="submit" name="提交" value="提交" onclick="submitForm()">这里好像不执行页面直接跳转
<input type="reset" name="重置" value="清空">
</form>
</center>
</body>
</html> try,你input没定义ID当然不行了。。
document.form1.password.value=""
“=”都改成“==”onclick="submitForm()"改成onclick="return submitForm()"