package address;import javax.naming.*;import java.util.Properties;import javax.rmi.PortableRemoteObject;import java.util.Collection;import java.util.Iterator;import java.util.Enumeration;public class AddressesClient {  static final private int MAX_OUTPUT_LINE_LENGTH = 50;  private AddressesHome addressesHome = null;  //創建一個EJB測試客戶端  public AddressesClient() {    try {      //得到名字上下文      Context ctx = getInitialContext();      //查詢jndi名      Object ref = ctx.lookup("Addresses");      //通過強制轉型得到Home接口      addressesHome = (AddressesHome) PortableRemoteObject.narrow(ref, AddressesHome.class);    }    catch(Exception e) {      e.printStackTrace();    }  }	//這個函數返回一個經過初始化的上下文  private Context getInitialContext() throws Exception {    String url = "t3://cgb-4wn01xj69v6:7001";    String user = null;    String password = null;    Properties properties = null;    try {      properties = new Properties();      properties.put(Context.INITIAL_CONTEXT_FACTORY, "weblogic.jndi.WLInitialContextFactory");      properties.put(Context.PROVIDER_URL, url);      if (user != null) {        properties.put(Context.SECURITY_PRINCIPAL, user);        properties.put(Context.SECURITY_CREDENTIALS, password == null ? "" : password);      }      return new InitialContext(properties);    }    catch(Exception e) {      System.out.println("Unable to connect to WebLogic server at " + url);      System.out.println("Please make sure that the server is running.");      throw e;    }  }  // 工具函數  public AddressesHome getHome() {    return addressesHome;  }  private void log(String message) {    if (message == null) {      System.out.println("-- null");      return ;    }    if (message.length() > MAX_OUTPUT_LINE_LENGTH) {      System.out.println("-- " + message.substring(0, MAX_OUTPUT_LINE_LENGTH) + " ...");    }    else {      System.out.println("-- " + message);    }  }  public void executeFindAll() {    try {      executeCollectionFinder(addressesHome.findAll());    }    catch(Exception e) {      e.printStackTrace();    }  }  public void executeCollectionFinder(Collection all) {    try {      Iterator iterator = all.iterator();      while (iterator.hasNext()) {        Object object = iterator.next();        Addresses addresses = (Addresses) PortableRemoteObject.narrow(object, Addresses.class);        log(addresses.toString());      }    }    catch(Exception e) {      e.printStackTrace();    }  }  public void executeEnumerationFinder(Enumeration all) {    try {      while (all.hasMoreElements()) {        Object object = all.nextElement();        Addresses addresses = (Addresses) PortableRemoteObject.narrow(object, Addresses.class);        log(addresses.toString());      }    }    catch(Exception e) {      e.printStackTrace();    }  }  //Main函數  public static void main(String[] args) {    AddressesClient client = new AddressesClient();	 //用client的getHome()函數調用Home接口函數得到遠程接口的引用     // 用遠程接口的引用訪問EJB    try {      Addresses Addressesobj=client.getHome().create("Jame","Janny");      Addressesobj.setCity("New York");      Addressesobj.setState("New York");      Addressesobj.setZip("310000");      Addressesobj.setAddress("Wall Street");      System.out.print("This is CMP EntityBean example!\n");	  System.out.print("FirstName:"+Addressesobj.getFirstName()+"\n");      System.out.print("LastName:"+Addressesobj.getLastName()+"\n");      System.out.print("Address:"+Addressesobj.getAddress()+"\n");      System.out.print("State:"+Addressesobj.getState()+"\n");	  System.out.print("The example is over!\n");    }    catch(Exception e) {      e.printStackTrace();    }  }}