customerclient.java

Java项目案例导航

package examples;

import javax.ejb.*;
import javax.naming.*;
import java.rmi.*;
import javax.rmi.PortableRemoteObject;
import java.util.*;

/**
 * Client test application
 */
public class CustomerClient {

	public static void main(String[] args) {

		CustomerHome home = null;

		try {
			/*
			 * Get a reference to the Home Object - the
			 * factory for EJB Objects
			 */
			Context ctx = new InitialContext(System.getProperties());
			Object obj = ctx.lookup("CustomerHome");
			home = (CustomerHome)
				PortableRemoteObject.narrow(obj, CustomerHome.class);

			/*
			 * Use the factory to create EJB Objects
			 */
			home.create("123-456-7890", "Bob", "bobPassword", "123 Oak St");
			home.create("123-456-7891", "Dan", "danPassword", "456 Pine St");
			home.create("123-456-7892", "Fred", "fredPassword", "456 Pine St");

			/*
			 * Find a bean, and print out it's description
			 */
			Collection c = home.findByAddress("456 Pine St");
			Iterator i = c.iterator();
			System.out.println("The following customers live at 456 Pine St:");
			while (i.hasNext()) {
				Customer customer = (Customer)
					PortableRemoteObject.narrow(i.next(), Customer.class);
				System.out.println(customer.getName());
			}
		}
		catch (Exception e) {
			e.printStackTrace();
		}
		finally {
			if (home != null) {
				try {
					System.out.println("Destroying customers..");

					/*
					 * Find all the Books
					 */
					Iterator i = home.findAllCustomers().iterator();
					while (i.hasNext()) {
						try {
							Customer customer = (Customer)
								PortableRemoteObject.narrow(i.next(), Customer.class);
							if (customer.getCustomerID().toString().startsWith("123")) {
								customer.remove();
							}
						}
						catch (Exception e) {
							e.printStackTrace();
						}
					}
				}
				catch (Exception e) {
					e.printStackTrace();
				}
			}
		}
	}
}