如何使用jQuery验证JSP密码字段？

Question

I would like to check (into a jsp page) whether the values of password1 & password2 are equal or not. And if they are not equal, it will stay on the same page. Otherwise it will update. I could do all things but I am unable to make the form to stay on the same page if the passwords are not equal. the codes which i tried are like the following:

• here, action is a struts2 action which is defined into struts.xml file

Form code:

<form id="form1" method="post"  action="saveUpdatePassword">
    Password:         <s:password name="password1" id="password1" />
    Re-type password: <s:password name="password2" id="password2" />
                      <input type="submit" id="sumbitButton" value="Update" />
</form>

and the jQuery script code:

$(function() {
    $("#sumbitButton").click(function() {
        if ($("#password1").val() != $("#password2").val()) {
            alert("Not equal");
        }           
    });
});

Can you tell me how to make the form staying on the same page if the password does not match? And provide users to put the password again?

Answer 1

You are looking for event.preventDefault()

$(function() {
    $("#sumbitButton").click(function(event) {
        if ($("#password1").val() != $("#password2").val()) {
            alert("Not equal");
            event.preventDefault();
        }           
    });
});

Note the event parameter being passed into the click handler.

http://api.jquery.com/event.preventdefault/

Answer 2

If result is false then simply return false, which will prevent the form to post.

$(function() {
        $("#sumbitButton").click(function() {
            if ($("#password1").val() != $("#password2").val()) {
                alert("Not equal");
                return false;
            }           
        });
    });

EDIT : When password changed successfully

var wnd = window.open(blah,blah,blah . . . . .)

you can close the window as wnd.close();