broker3tierserver.java

this is a trade sale system realized by java. It can run some easy functions and has a good design p

package trader.nw;
import trader.*;
import trader.db.*;
public class Broker3TierServer {
  public static void main(String args[]){
    String dbHost = "localhost";
    try {
      if (args.length > 0) {
        dbHost = args[0];
      }
      BrokerModel brokerModel = new BrokerModelDbImpl(dbHost);
      BrokerServer brokerServer = new BrokerServer(brokerModel);
      NwServer nwServer = new NwServer(6001, brokerServer);
    } catch (Exception e) { 
      System.out.println("Broker3TierServer err: " + e.getMessage()); 
    } 
  }
}