com.microsoft.sqlserver.jdbc.SQLServerException: 到主机 的 TCP/IP 连接失败怎么解决。

java.net.ConnectException: Connection timed out: connect
at com.microsoft.sqlserver.jdbc.SQLServerException.makeFromDriverError(Unknown Source)
at com.microsoft.sqlserver.jdbc.SQLServerConnection.connect(Unknown Source)
at com.microsoft.sqlserver.jdbc.SQLServerDriver.connect(Unknown Source)
at java.sql.DriverManager.getConnection(DriverManager.java:582)
at java.sql.DriverManager.getConnection(DriverManager.java:185)
at com.channelsoft.hr.webservice.impl.DepartmentAndPersonInfoImpl.getConnection(DepartmentAndPersonInfoImpl.java:38)
at com.channelsoft.hr.webservice.impl.DepartmentAndPersonInfoImpl.queryDepartmentInfo(DepartmentAndPersonInfoImpl.java:65)
at com.channelsoft.hr.webservice.impl.DepartmentAndPersonInfoImpl.main(DepartmentAndPersonInfoImpl.java:252)

解决办法：关掉防火墙

详件 com.microsoft.sqlserver.jdbc.SQLServerException: 用户 ‘sa’ 登录失败。