jQuery Validation插件：在对servlet进行ajax调用时，submitHandler不会阻止提交时的默认值 - 返回false不能正常工作

I have a simple form that uses jquery and a servlet. The jquery makes an ajax call to the servlet, the servlet makes some server side calculations, then displays the results on the same page via jQuery. I don't want the form to do a default submit (and go to the servlet) because I want to stay on the same page and display results dynamically. It works exactly how I want it to as is:I have a simple form that uses jquery and a ser