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public class test {
public static void main(String args[]) {
try {
/* Test loading driver */
String driver = "com.mysql.jdbc.Driver";
System.out.println( "=> loading driver:" );
Class.forName( driver ).newInstance();
System.out.println( "OK" );
/* Test the connection */
String url = "jdbc:mysql://localhost:3306/coffeebreak";//请问这个端口号用不用写?应该是多少?
System.out.println( "=> connecting:" );
java.sql.DriverManager.getConnection(url, "root", "pass" );
System.out.println( "OK" );
}
catch( Exception x ) {
x.printStackTrace();
}
}
}
Caused by: 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:519)
at java.net.Socket.connect(Socket.java:469)
at java.net.Socket.<init>(Socket.java:366)
at java.net.Socket.<init>(Socket.java:209)
at com.mysql.jdbc.StandardSocketFactory.connect(StandardSocketFactory.ja
va:256)
at com.mysql.jdbc.MysqlIO.<init>(MysqlIO.java:276)
at com.mysql.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:2027)
... 12 more