A fatal error has been detected by the Java Runtime Environment:
#
# EXCEPTION_ACCESS_VIOLATION (0xc0000005) at pc=0x0000000055cff623, pid=13140, tid=0x000000000000249c
#
# JRE version: Java(TM) SE Runtime Environment (8.0_181-b13) (build 1.8.0_181-b13)
# Java VM: Java HotSpot(TM) 64-Bit Server VM (25.181-b13 mixed mode windows-amd64 compressed oops)
# Problematic frame:
# V [jvm.dll+0x13f623]
#
# Failed to write core dump. Minidumps are not enabled by default on client versions of Windows
#
# An error report file with more information is saved as:
# D:Program FilesApache Software FoundationTomcat 9.0inhs_err_pid13140.log
#
# If you would like to submit a bug report, please visit:
# http://bugreport.java.com/bugreport/crash.jsp
#
原因：
原来是tomcat找不到mssql-jdbc-7.4.1.jre8.jar包的问题。后来又把mssql-jdbc-7.4.1.jre8.jar导入到tomcat的lib目录下面就ok了，