He is the GWT code:
public abstract class DB_Conn {
private String url;
public DB_Conn() {
url = "jdbc:mysql://xxxxxxxxxxxxxxx:3306/";
}
protected Connection getConn() {
Connection conn = null;
String url = getServerURL();
String db = "xxxxx";
String driver = "com.mysql.jdbc.Driver";
String user = "xxxxx";
String pass = "xxxxx";
try {
Class.forName(driver).newInstance();
conn = DriverManager.getConnection(url+db,
user, pass);
} catch (Exception e) {
System.err.println("Mysql Connection Error:
");
e.printStackTrace();
}
return conn;
}
private String getServerURL() {
return url;
}
protected static int getResultSetSize(ResultSet resultSet) {
int size = -1;
try {
resultSet.last();
size = resultSet.getRow();
resultSet.beforeFirst();
} catch(SQLException e) {
return size;
}
return size;
}
}
On 8 mar, 19:13, Fran <[email protected]> wrote:
> help me please! :(
>
> On 8 mar, 14:40, Fran <[email protected]> wrote:
>
> > I cant understand what is the problem :(
>
> > is possible a problem with iptables?
>
> > On 8 mar, 01:27, Fran <[email protected]> wrote:
>
> > > Hi,
>
> > > I have a problem with a tomcat and MySQL driver.
>
> > > If I use a tomcat instalation in Windows, it works fine.
> > > If I put the aplication in a production server (Linux centoos), It
> > > dont work.
> > > This is the output of catalina.out
>
> > > Mysql Connection Error:
> > > 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.
>
> > > Anyone know this problem? Help me please!
>
> > > Thanks
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