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  • mysql数据库无法连接(JDBC)java.net.ConnectException: Connection timed out

    数据库无法连接(JDBC)
    用户名密码正确,但是一直报错:Connection timed out
    后来知道了原因:我用的是BAE提供的云mysql数据库,对访问的IP有限制 ,所以在本机上无法连接。
    ~~~~(>_<)~~~~ 
    Communications link failure due to underlying exception: 
     
    ** BEGIN NESTED EXCEPTION ** 
     
    java.net.SocketException
    MESSAGE: java.net.ConnectException: Connection timed out: connect
     
    STACKTRACE:
     
    java.net.SocketException: java.net.ConnectException: Connection timed out: connect
    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:2641)
    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:582)
    at java.sql.DriverManager.getConnection(DriverManager.java:185)
    at com.fei.keyword.util.JDBCUtil.<init>(JDBCUtil.java:36)
    at com.fei.keyword.util.JDBCUtil.main(JDBCUtil.java:15)
     
     
    ** END NESTED EXCEPTION **
     
     
     
    Last packet sent to the server was 684 ms ago.
    at com.mysql.jdbc.Connection.createNewIO(Connection.java:2707)
    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:582)
    at java.sql.DriverManager.getConnection(DriverManager.java:185)
    at com.fei.keyword.util.JDBCUtil.<init>(JDBCUtil.java:36)
    at com.fei.keyword.util.JDBCUtil.main(JDBCUtil.java:15)
     

     





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  • 原文地址:https://www.cnblogs.com/feiqihang/p/3659035.html
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