in the course of using springboot today, Met the Servlet service () for the Servlet [dispatcherServlet] in context with the path [] threw the exception [Request processing failed; nested exception is Java. Lang. NullPointerException] with root cause error, really sad, Write it down.
error reason: 
I cited in the service implementation class two resource bundle files, but only write a @ Autowared, so only the first package is automatically injected, and the second package is not injection, So, should be to write a @ Autowared 
so my problem is solved!
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