问题
I have created a jsp page having a spring form. I want to validate the form using angular js. When I try to add required and ng-model attributes inside <form:input> tag, I'm getting exception Jasper exception equal symbol expected and Attribute ng-model invalid for tag input according to TLD in the line where i added these attributes.
What is the procedure to make my logic work?
回答1:
There are 4 things you can try:
First one: Probably the neatest, and I think this should work:
<form:input path="usrname" maxlength="12" required="required"/>
So required='required' instead of just required
Second one: Forget about Angular Validation, and use Spring Validation methods. Maybe this isn't the thing you're searching for.
Third one: Isn't it possible for you to forget about <form:input> tags, and use <input> tags instead? Maybe not.
Fourth one: You can try to give your form:input tag an id, and at the bottom of your page, run a simple jQuery script. I know, this isn't the neatest thing to do, but maybe it works.
<html>
<body>
<form:input path="someinput" id="someinput"/>
</body>
<script>
$("#someinput").attr('required', '');
</script>
</html>
Please mark this as an answer if this helped you.
来源：https://stackoverflow.com/questions/27717836/using-angular-js-form-validations-in-forminput-tag