com.mysql.jdbc.CommunicationsException: Communications link failure due to underlying exception: ** BEGIN NESTED EXCEPTION ** java.net.SocketException
MESSAGE: java.net.SocketException: Connection timed out:could be due to invalid addressSTACKTRACE:java.net.SocketException: java.net.SocketException: Connection timed out:could be due to invalid address
        at com.mysql.jdbc.StandardSocketFactory.connect(StandardSocketFactory.java:156)
        at com.mysql.jdbc.MysqlIO.<init>(MysqlIO.java:276)
        at com.mysql.jdbc.Connection.createNewIO(Connection.java:2666)
        at com.mysql.jdbc.Connection.<init>(Connection.java:1531)
        at com.mysql.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:266)
        at java.sql.DriverManager.getConnection(DriverManager.java:559)
        at java.sql.DriverManager.getConnection(DriverManager.java:211)
        at com.sse.compareFile.ConnectDataBase.connectDataBase(ConnectDataBase.java:22)
        at com.sse.compareFile.CompareThread.runTask(CompareThread.java:62)
        at com.sse.compareFile.CompareThread.run(CompareThread.java:20)
** END NESTED EXCEPTION **刚接触,好心人,帮帮忙吧.