Salve a tutti, ho scritto una classe dove nel main eseguo una connessione al db, una select, e faccio un ciclo che processi i risultati della select:

codice:
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.ResultSet;
import java.sql.Statement;

public class Prove {
    public Prove(){
        try {
            Class.forName("com.mysql.jdbc.Driver");
            Connection con = DriverManager.getConnection("jdbc:mysql://62.149.150.132?user=utente&pass=password");
            Statement stat = con.createStatement();
            String query = "SELECT * FROM db_1.content";
            ResultSet rs = stat.executeQuery(query);
            int i=1;
            while(rs.next()) {
                query = "INSERT INTO db_5.content (id,title,alias,title_alias,introtext,fulltext,state,sectionid,mask,catid,created,created_by,created_by_alias,modified,modified_by,checked_out,checked_out_time,datetime,publish_up,publish_down,images,urls,attribs,version,parentid,ordering,metakey,metadesc,access,hits,metadata) VALUES ("+rs.getString("id")+","+rs.getString("title")+","+rs.getString("alias")+","+rs.getString("title_alias")+","+rs.getString("introtext")+","+rs.getString("fulltext")+","+rs.getString("state")+","+rs.getString("sectionid")+","+rs.getString("mask")+","+rs.getString("catid")+","+rs.getString("created")+","+rs.getString("created_by")+","+rs.getString("created_by_alias")+","+rs.getString("modified")+","+rs.getString("modified_by")+","+rs.getString("checked_out")+","+rs.getString("checked_out_time")+","+rs.getString("datetime")+","+rs.getString("publish_up")+","+rs.getString("publish_down")+","+rs.getString("images")+","+rs.getString("urls")+","+rs.getString("attribs")+","+rs.getString("version")+","+rs.getString("parentid")+","+rs.getString("ordering")+","+rs.getString("metakey")+","+rs.getString("metadesc")+","+rs.getString("access")+","+rs.getString("hits")+","+rs.getString("metadata")+")";
                stat.executeUpdate(query);
                System.out.println("Eseguita query numero "+i);
                i+=1;
            }
        } catch (Exception e) {
            e.printStackTrace();
        }
    }

    public static void main(String[] args) {
        new Prove();
    }
}
Ho sempre lavorato con i DB con java senza avere mai problemi, l'unica cosa è che prima ho sempre lavorato con i db usando Java Server e non Java Client, ora mi dà quest'errore:

codice:
com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
	at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
	at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39)
	at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27)
	at java.lang.reflect.Constructor.newInstance(Constructor.java:513)
	at com.mysql.jdbc.Util.handleNewInstance(Util.java:409)
	at com.mysql.jdbc.SQLError.createCommunicationsException(SQLError.java:1118)
	at com.mysql.jdbc.MysqlIO.<init>(MysqlIO.java:343)
	at com.mysql.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:2308)
	at com.mysql.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:2122)
	at com.mysql.jdbc.ConnectionImpl.<init>(ConnectionImpl.java:774)
	at com.mysql.jdbc.JDBC4Connection.<init>(JDBC4Connection.java:49)
	at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
	at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39)
	at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27)
	at java.lang.reflect.Constructor.newInstance(Constructor.java:513)
	at com.mysql.jdbc.Util.handleNewInstance(Util.java:409)
	at com.mysql.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:375)
	at com.mysql.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:289)
	at java.sql.DriverManager.getConnection(DriverManager.java:582)
	at java.sql.DriverManager.getConnection(DriverManager.java:207)
	at prove.Prove.<init>(Prove.java:19)
	at prove.Prove.main(Prove.java:38)
Caused by: java.net.ConnectException: Connection timed out: connect
	at java.net.PlainSocketImpl.socketConnect(Native Method)
	at java.net.PlainSocketImpl.doConnect(PlainSocketImpl.java:351)
	at java.net.PlainSocketImpl.connectToAddress(PlainSocketImpl.java:213)
	at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:200)
	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:292)
	... 15 more
Premetto che IP di connessione, user e password sono giusti, e la libreria di mysql c'è tra quelle importate