Shulou(Shulou.com)06/02 Report--

This article will explain in detail how to solve the problem that the JavaWeb project Servlet can not be accessed. The content of the article is of high quality, so the editor will share it for you as a reference. I hope you will have some understanding of the relevant knowledge after reading this article.

Solution:

1. Create Servlet

two。 Call with ajax in jsp

$.post ("/ AjaxValidationServlet", {"userName": userName}, function (message) {alert (message);})

This is asynchronously verifying the existence of the user.

Problem: report 404, indicating that there is no this servlet.

Resolve:

1. Xsi referenced in web.xml: if you have comments after 3.0.xsd, you can solve the problem.

@ WebServlet (name = "AjaxValidationServlet", urlPatterns = "/ AjaxValidationServlet")

two。 Servlet names and mappings need to be configured in web.xml prior to 3. 0

AjaxValidationServlet com.web.AjaxValidationServlet AjaxValidationServlet / AjaxValidationServlet

So that you can have normal access.

On the JavaWeb project Servlet can not access how to share here, I hope the above content can be of some help to you, can learn more knowledge. If you think the article is good, you can share it for more people to see.

Welcome to subscribe "Shulou Technology Information " to get latest news, interesting things and hot topics in the IT industry, and controls the hottest and latest Internet news, technology news and IT industry trends.