Tomcat reported 404 error after normal startup

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Development environment:

Eclipse Java EE Edition

Description

I configured a server in Eclipse, can start normally, but after entering the project path to report 404 error, and http://localhost:8080 also can not enter, also reported 404 error.

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Input Project Path Error:

Input http://localhost:8080/also reported 404 error

After the online search is said to be the path in Web. config is not correct, my original path is:

Change the path to: \web-inf\hello.jsp

When you run the engineering path again, it's OK.

However, when the input http://localhost:8080/run is still reported 404 error, I do not know what the solution. Ask the great God to reply under the message, thanks.

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When eclipse restarts and runs again, both the engineering path and the http://localhost:8080 are working properly .... Do not understand AH. What's the reason?

Above.