Servlet3.0环境中的web.xml文件在哪里？

Question

I'm looking for the web.xml file in a Servlet 3.0 enviroment. The reason is because I want to change my welcome file from "index.jsp" to "hello.jsp".

I know that in the web.xml file, there is a welcome-file-list, and I want to change this setting so that the index.jsp URL mapping is changed to hello.jsp.

So, my question is, where is the web.xml file, or if there is no such file in Servlet 3.0, how can I change my URL mapping?

I would be very pleased to get the answer this question, thanks.

Answer 1

对于Servlet 3.0，并非总是需要它，因此，如果不存在它，则可以在WEB-INF/web.xml添加一个

Answer 2

创建servlet时由您自己创建web.xml文件

Answer 3

In Servlet 3.0 web.xml file can be Omitt .

Immediate question is Then how to map ??

Like below using Annotations .

 @WebServlet(name = "MyServlet",
  urlPatterns = {"/myservlet"}, 
  initParams = {@WebInitParam(name="param1", value="value1")}
 )
 public MyServlet extends HttpServlet
 {

If you want to add welcome file and 400 ,500 status code exceptions ...blah blah ..

Create one with path WEB-INF/web.xml and give there .