Java连接MySQL数据库失败的一种可能原因

今天写了个java访问MySQL数据库的程序，发现总是连接失败，报以下异常：

Communication link failure: java.io.IOException, underlying cause: Unexpected end of input stream


** BEGIN NESTED EXCEPTION **

java.io.IOException
MESSAGE: Unexpected end of input stream

STACKTRACE:

java.io.IOException: Unexpected end of input stream
at com.mysql.jdbc.MysqlIO.readPacket(MysqlIO.java:1096)
at com.mysql.jdbc.MysqlIO.doHandshake(MysqlIO.java:626)
at com.mysql.jdbc.Connection.createNewIO(Connection.java:1562)
at com.mysql.jdbc.Connection.(Connection.java:491)
at com.mysql.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:346)
at org.apache.tools.ant.taskdefs.JDBCTask.getConnection(JDBCTask.java:304)
at org.apache.tools.ant.taskdefs.SQLExec.execute(SQLExec.java:346)
at org.apache.tools.ant.UnknownElement.execute(UnknownElement.java:275)
at org.apache.tools.ant.Task.perform(Task.java:364)
at org.apache.tools.ant.Target.execute(Target.java:341)
at org.apache.tools.ant.Target.performTasks(Target.java:369)
at org.apache.tools.ant.Project.executeSortedTargets(Project.java:1216)
at org.apache.tools.ant.Project.executeTarget(Project.java:1185)
at org.apache.tools.ant.helper.DefaultExecutor.executeTargets(DefaultExecutor.java:40)
at org.eclipse.ant.internal.ui.antsupport.EclipseDefaultExecutor.executeTargets(EclipseDefaultExecutor.java:32)
at org.apache.tools.ant.Project.executeTargets(Project.java:1068)
at org.eclipse.ant.internal.ui.antsupport.InternalAntRunner.run(InternalAntRunner.java:423)
at org.eclipse.ant.internal.ui.antsupport.InternalAntRunner.main(InternalAntRunner.java:137)


** END NESTED EXCEPTION **

      后来在这里发现这是由于我使用的mysql的驱动程序有问题，换个驱动问题就解决了。(本人遇到的问题也是驱动问题，因为MYSQL是5.0版本，而驱动还是5.0以下版本，当然会出错，到网址：http://dev.mysql.com/get/Downloads/Connector-J/mysql-connector-java-5.0.6.zip/from/pick?file=Downloads/Connector-J/mysql-connector-java-5.0.6.zip&mirror=pick#mirrors上下载一个最 新的JDBC驱动就可以了--eric Kwoks)
附近是最新的包mysql-connector-java-5.1.10.tar.gz