javascript jsp页面中的javascript函数
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javascript function in jsp page
提问by URL87
I have jsp page -
我有jsp页面-
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
</head>
<body>
<legend>Create new customer</legend>
<script Language="JavaScript">
function checkForm() {
alert("YOU ARE IN checkForm FUNCTION !");
return (false);
}
</script>
<form action="CreateCustomerServlet" method="GET" onsubmit="checkForm">
// form fields ...
<input type="submit" value="Create customer" />
</form>
</body>
</html>
When I run on server this page and press on the submitbutton I see that it ignore checkFormand don't enter him , and directly go to CreateCustomerServlet.
当我在服务器上运行此页面并按下submit按钮时，我看到它忽略checkForm并且不输入他，直接转到CreateCustomerServlet.
My goals is that when press on submitit go to checkFormand if checkFormreturns trueonly then it will go to CreateCustomerServlet. what I have to change in order to get this goal ?
我的目标是，当按下submit它时，它会转到checkForm，如果仅checkForm返回，true它就会转到CreateCustomerServlet. 为了达到这个目标，我必须改变什么？
回答by Sudip Pal
Try
尝试
onsubmit="return checkForm();"
回答by M. Abbas
You should replace
你应该更换
onsubmit="checkForm"
By
经过
onsubmit="return checkForm();"
回答by Gautam
You should use
你应该使用
onsubmit="return checkForm();"
because only when falseis returned from onSubmitwill it be stopped , or else it will continue submitting the form.
因为只有false从返回时onSubmit才会停止，否则会继续提交表单。
