This application has no explicit mapping for /error, so you are seeing this as a fallback.
Wed Apr 24 12:54:08 CST 2019
There was an unexpected error (type=Internal Server Error, status=500).
No message available
java.lang.NullPointerException
at com.apitest.service.impl.ApplicationTableServiceImpl.insert(ApplicationTableServiceImpl.java:51)
at com.apitest.controler.AddDeleteAndChangeControler.ProjectinfoTemp(AddDeleteAndChangeControler.java:59)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
程序运行正常
springboot提交表单提示NullPointerException
原文：https://blog.51cto.com/357712148/2383794