数据库连接mysql [英] database connection mysql

问题描述

嗨..如何将netbeans与mysql连接起来???


在netbeans中运行Java代码后，错误显示如下...

Hi .. how to connect netbeans with mysql???


after running java code in netbeans , the errors displayed as follow...

run:
SQL Exception: com.mysql.jdbc.CommunicationsException: Communications link failure due to underlying exception:

** BEGIN NESTED EXCEPTION **

java.net.ConnectException
MESSAGE: Connection refused: connect

STACKTRACE:

java.net.ConnectException: Connection refused: connect
    at java.net.PlainSocketImpl.socketConnect(Native Method)
    at java.net.PlainSocketImpl.doConnect(PlainSocketImpl.java:333)
    at java.net.PlainSocketImpl.connectToAddress(PlainSocketImpl.java:195)
    at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:182)
    at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:366)
    at java.net.Socket.connect(Socket.java:529)
    at java.net.Socket.connect(Socket.java:478)
    at java.net.Socket.<init>(Socket.java:375)
    at java.net.Socket.<init>(Socket.java:218)
    at com.mysql.jdbc.StandardSocketFactory.connect(StandardSocketFactory.java:256)
    at com.mysql.jdbc.MysqlIO.<init>(MysqlIO.java:271)
    at com.mysql.jdbc.Connection.createNewIO(Connection.java:2771)
    at com.mysql.jdbc.Connection.<init>(Connection.java:1555)
    at com.mysql.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:285)
    at java.sql.DriverManager.getConnection(DriverManager.java:582)
    at java.sql.DriverManager.getConnection(DriverManager.java:185)
    at testmysql.Main.main(Main.java:27)


** END NESTED EXCEPTION **



Last packet sent to the server was 0 ms ago.
BUILD SUCCESSFUL (total time: 1 second)

怎么办?

请帮助

谢谢

What to do??

Plz Help

Thanks

推荐答案

您的mySQL数据库不可用.

尝试本教程:
http://netbeans.org/kb/docs/ide/mysql.html [ ^ ]

Your mySQL database is not available.

Try this tutorial:
http://netbeans.org/kb/docs/ide/mysql.html[^]

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