连接mysql的问题

Question

public class TestJDBC {

public static void main(String[] args) throws SQLException, Exception {
    Class.forName("com.mysql.jdbc.Driver");
    Connection conn=DriverManager.getConnection("jdbc:mysql://localhost:3306/wyb","root","123456");
}

}
为什么得不到连接呢，包导了，mysql也开了。
各位帮兄弟解决一下 ，谢谢了

报错如下
com.mysql.jdbc.CommunicationsException: Communications link failure due to underlying exception:

** BEGIN NESTED EXCEPTION **

java.net.SocketException
MESSAGE: java.net.SocketException: Permission denied: connect

STACKTRACE:

java.net.SocketException: java.net.SocketException: Permission denied: connect
at com.mysql.jdbc.StandardSocketFactory.connect(StandardSocketFactory.java:156)
at com.mysql.jdbc.MysqlIO.(MysqlIO.java:283)
at com.mysql.jdbc.Connection.createNewIO(Connection.java:2541)
at com.mysql.jdbc.Connection.(Connection.java:1474)
at com.mysql.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:264)
at java.sql.DriverManager.getConnection(Unknown Source)
at java.sql.DriverManager.getConnection(Unknown Source)
at jdbc.TestJDBC.main(TestJDBC.java:11)

** END NESTED EXCEPTION **

Last packet sent to the server was 30 ms ago.
at com.mysql.jdbc.Connection.createNewIO(Connection.java:2607)
at com.mysql.jdbc.Connection.(Connection.java:1474)
at com.mysql.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:264)
at java.sql.DriverManager.getConnection(Unknown Source)
at java.sql.DriverManager.getConnection(Unknown Source)
at jdbc.TestJDBC.main(TestJDBC.java:11)
Exception in thread "main"
[b]问题补充：[/b]
用telnet localhost 3306能连上吗？
我初学的 不知道这个是不是jdbc:telnet://localhost:3306/wyb 这个意思 ？
不行啊，郁闷啊 只是个连接都得不到
[b]问题补充：[/b]
服务启动了。还是连不上啊
[b]问题补充：[/b]
telnet localhost 3306
失去了跟主机的连接。
怎么回事啊以前没遇到过啊。

Answer 1

[quote]telnet localhost 3306
失去了跟主机的连接。
怎么回事啊以前没遇到过啊。[/quote]
看看是不是防火墙的问题？让防火墙把3306打开就OK！