javascript无法阻止在JSP页面上提交,为什么? [英] javascript can not prevent submit on JSP page, why?
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问题描述
我的表单很简单,我想提交按钮,但是有确认,但是在两种情况下确实提交了,即使在确认窗口出现后单击取消",我也无法停止提交
I have simple form and I want to submit button, but with confirmation, but in two cases form do submit, I cant stop submit even if I click cancel after confirm window appear
她是一个密码,为什么表格总是要提交?它进入ELSE情况,但要执行以下操作:(
her is a code, why form always do submit? it enter to ELSE case, but do action:(
<body>
<h1>Test me</h1>
<script type="text/javascript">
function submitPost(btn) {
var $result = false;
$result = confirm('Are you sure???');
if ($result === true) {
alert("Submit????? " + $result);
return true;
} else {
alert("Do not submit " + $result);
return false;
}
}
</script>
<%
String token = request.getParameter("finalise");
out.println("Set is " + token);
%>
<form method="get" name="myform" action="index.jsp">
<button type="submit" id="SaveIt" onclick="submitPost(this);" name="finalise" value="setme">TEST ME</button>
</form>
</body>
推荐答案
您需要从调用函数的函数中返回返回值:
You need to return the return value from your function where you call it:
<button type="submit" id="SaveIt" onclick="return submitPost(this);" name="finalise" value="setme">TEST ME</button>
^^^^^^ here
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