Druid连接Ms SQL Server报地址端口被占用错误

今天部署项目遇到一个大坑，调试了一天，最后终于解决。

项目开发框架：spring boot

应用服务器环境：windows server 2012

数据库环境：MS SQL server 2014 端口：1444

连接池：druid

症状：连接数据库报地址端口冲突

com.microsoft.sqlserver.jdbc.SQLServerException: The TCP/IP connection to the host 10.1.12.2, port 1444 has failed. Error: "Address already in use: no further information. Verify the connection properties. Make sure that an instance of SQL Server is running on the host and accepting TCP/IP connections at the port. Make sure that TCP connections to the port are not blocked by a firewall.".
	at com.microsoft.sqlserver.jdbc.SQLServerException.makeFromDriverError(SQLServerException.java:206)
	at com.microsoft.sqlserver.jdbc.SQLServerException.ConvertConnectExceptionToSQLServerException(SQLServerException.java:257)
	at com.microsoft.sqlserver.jdbc.SocketFinder.findSocket(IOBuffer.java:2385)
	at com.microsoft.sqlserver.jdbc.TDSChannel.open(IOBuffer.java:567)
	at com.microsoft.sq