repeateform.html

深入JavaWeb开发内幕核心基础书中源码

<h1>测试表单重复提交的页面</h1>
<script>
	var isCommitted = false;
	function checkPost()
	{
		if(!isCommitted)
		{
			isCommitted = true;
			return true;
		}
		else
		{
			alert("不能重复提交表单"); 
			return false;
		}
	}
</script>
<form action="servlet/RepeateFormServlet" method="POST" 
		onsubmit="return checkPost()">
	留言内容：<textarea name="note"></textarea><br>
	<input type="submit" value="提交"> 
</form>