bankbmpclient.java

java的一系列产品中包括jsme,jmse,j2ee,本文件提供j2ee实现的源代码.

package bankbmp;

import bmp.BaseClient;

import javax.ejb.DuplicateKeyException;
import javax.naming.NamingException;
import java.rmi.RemoteException;

public final class BankBMPClient extends BaseClient {

  private BankHome BankHome;

  public BankBMPClient(String [] argv) throws NamingException
  {
    super(argv);    
    try {
      BankHome = (BankHome) 
        narrow(getInitialContext().lookup("theBankEJB"), BankHome.class);

    } catch (NamingException ne) {
      System.err.println("Unable to lookup EJB: BankEJB");
      System.err.println("Please make sure that you have deployed this EJB.");
      throw ne;
    }
  }

  private void runExample() throws Exception
  {
    Bank s = null;

    try {
      s = BankHome.create(1001,"ALi Han", 885, 2);
      System.err.println("Created a ALi Han Bank BMP Entity.");

    } catch (DuplicateKeyException dke) {
      System.err.println("Bank named ALi Han already exists.");
      System.err.println("Remove the ALi Han bean from your "+
        "database table and re-run the example.");
      throw dke;
    } catch (Exception e) {
      System.err.println("Unable to create Bank bean.");
      System.err.println("Did you create the database tables?");
      throw e;
    }

    try {
      s.setaccountLevel(3);      
      System.err.println("Changed Bank's level to 3.");
    } catch (RemoteException re) {
      System.err.println("Unable to update Bank's level.");
      re.printStackTrace();
      throw re;
    }

    /*try {
      s.remove();
      System.err.println("Remove Bank's level to 3.");
    } catch (Exception e) {
      System.err.println("Unable to remove Bank bean.");
      e.printStackTrace();
      throw e;
    }*/
  }

  public static void main(String[] argv) throws Exception
  {

    System.err.println("");
    System.err.println("Running BankBMPClient.....");
    System.err.println("");

    BankBMPClient sc = new BankBMPClient(argv);
    sc.runExample();
    System.err.println("");
  }
}