Jsp--http Status 404 Issues

Today, when I learned jspapplication built-in objects, I came across a problem.--http status 404 what happened?

Tip the requested resource is not available

The requested resource is not available, what is this ghost?

Is there a problem with my code?

Re-examined the following code, but did not see any obvious problem;

Did I configure a problem?

Before the JSP program can run, should not AH.

What's the problem?

Baidu Bar, Ah, still no solution.

Look carefully at the original. jsp file location misplaced it should be in the WebContent directory, mistakenly put it in the Web-inf directory, adjust the position!

Ok, Fix it!

Jsp--http Status 404 Issues