Admin: 1 версия

2010-06-01T06:50:26Z

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в 18:01, 31 мая 2010

2010-05-31T18:01:45Z

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== EJB Based Web Services ==



<source lang="java">

File: jndi.properties
java.naming.factory.initial=org.jnp.interfaces.NamingContextFactory
java.naming.factory.url.pkgs=org.jboss.naming:org.jnp.interfaces
java.naming.provider.url=localhost:1099

File: Main.java
import java.util.Date;
import javax.naming.InitialContext;
import bean.EmployeeServiceRemote;

public class Main {
public static void main(String[] a) throws Exception {
EmployeeServiceRemote service = null;
// Context compEnv = (Context) new InitialContext().lookup("java:comp/env");
// service = (HelloService)new InitialContext().lookup("java:comp/env/ejb/HelloService");
service = (EmployeeServiceRemote) new InitialContext().lookup("EmployeeBean/remote");

//service.doAction();
}
}

File: Employee.java
package bean;
import javax.persistence.Entity;
import javax.persistence.EntityListeners;
import javax.persistence.GeneratedValue;
import javax.persistence.Id;
import javax.persistence.PostRemove;

@Entity
public class Employee implements java.io.Serializable {
private int id;
private String firstName;
private String lastName;
@Id
@GeneratedValue
public int getId() {
return id;
}

@PostRemove
public void postRemove()
{
System.out.println("@PostRemove");
}
public void setId(int id) {
this.id = id;
}
public String getFirstName() {
return firstName;
}
public void setFirstName(String first) {
this.firstName = first;
}
public String getLastName() {
return lastName;
}
public void setLastName(String last) {
this.lastName = last;
}
}

File: EmployeeBean.java
package bean;
import javax.ejb.Stateless;
import javax.jws.WebMethod;
import javax.jws.WebParam;
import javax.jws.WebResult;
import javax.jws.WebService;
import javax.persistence.EntityManager;
import javax.persistence.PersistenceContext;

@WebService(name = "MyEmployee", serviceName = "MyEmployeeService")
//@Stateless
public class EmployeeBean implements EmployeeServiceLocal, EmployeeServiceRemote {
@PersistenceContext(unitName = "EmployeeService")
private EntityManager entityManager;
public EmployeeBean() {
}
@WebMethod
public void createEmployee(@WebParam(name = "employee")Employee c) {
entityManager.persist(c);
}
@WebMethod
@WebResult(name = "Employee")
public Employee findEmployee(@WebParam(name = "ID")int pKey) {
return entityManager.find(Employee.class, pKey);
}
}

File: EmployeeServiceLocal.java
package bean;

import javax.ejb.Local;

@Local
public interface EmployeeServiceLocal {
public void createEmployee(Employee c);
public Employee findEmployee(int id);
}

File: EmployeeServiceRemote.java
package bean;
import javax.ejb.Remote;

@Remote
public interface EmployeeServiceRemote {
public void createEmployee(Employee c);
public Employee findEmployee(int id);
}

</source>



== EJB Tutorial from JBoss: turn EJB to web service ==



<source lang="java">

File: Calculator.java
/*
* JBoss, Home of Professional Open Source.
* Copyright 2006, Red Hat Middleware LLC, and individual contributors
* as indicated by the @author tags. See the copyright.txt file in the
* distribution for a full listing of individual contributors.
*
* This is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation; either version 2.1 of
* the License, or (at your option) any later version.
*
* This software is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this software; if not, write to the Free
* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA, or see the FSF site: http://www.fsf.org.
*/
package org.jboss.tutorial.webservice.bean;
import javax.jws.WebService;
import javax.jws.WebMethod;
import java.rmi.Remote;
import java.rmi.RemoteException;
import javax.jws.soap.SOAPBinding;
import javax.jws.soap.SOAPBinding.Style;
@WebService
@SOAPBinding(style=Style.RPC)
public interface Calculator extends Remote
{
@WebMethod int add(int x, int y);
@WebMethod int subtract(int x, int y);
}

File: CalculatorBean.java
/*
* JBoss, Home of Professional Open Source.
* Copyright 2006, Red Hat Middleware LLC, and individual contributors
* as indicated by the @author tags. See the copyright.txt file in the
* distribution for a full listing of individual contributors.
*
* This is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation; either version 2.1 of
* the License, or (at your option) any later version.
*
* This software is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this software; if not, write to the Free
* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA, or see the FSF site: http://www.fsf.org.
*/
package org.jboss.tutorial.webservice.bean;
import javax.ejb.Stateless;
import javax.jws.WebService;
import javax.jws.soap.SOAPBinding;
import javax.jws.soap.SOAPBinding.Style;
@Stateless
@WebService(endpointInterface="org.jboss.tutorial.webservice.bean.Calculator")
public class CalculatorBean
{
public int add(int x, int y)
{
return x + y;
}
public int subtract(int x, int y)
{
return x - y;
}
}
File: Client.java
/*
* JBoss, Home of Professional Open Source.
* Copyright 2006, Red Hat Middleware LLC, and individual contributors
* as indicated by the @author tags. See the copyright.txt file in the
* distribution for a full listing of individual contributors.
*
* This is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation; either version 2.1 of
* the License, or (at your option) any later version.
*
* This software is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this software; if not, write to the Free
* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA, or see the FSF site: http://www.fsf.org.
*/
package org.jboss.tutorial.webservice.client;
import org.jboss.tutorial.webservice.bean.Calculator;
import javax.xml.namespace.QName;
import javax.xml.rpc.Service;
import javax.xml.rpc.ServiceFactory;
import java.net.URL;
import java.io.File;
public class Client
{
public static void main(String[] args) throws Exception
{
URL url = new URL("http://localhost:8080/tutorial/CalculatorBean?wsdl");
QName qname = new QName("http://bean.webservice.tutorial.jboss.org/jaws",
"CalculatorService");
ServiceFactory factory = ServiceFactory.newInstance();
Service service = factory.createService(url, qname);
Calculator calculator = (Calculator) service.getPort(Calculator.class);
System.out.println("1 + 1 = " + calculator.add(1, 1));
System.out.println("1 - 1 = " + calculator.subtract(1, 1));
}
}

</source>



== EJB With Web Method ==



<source lang="java">

File: jndi.properties
java.naming.factory.initial=org.jnp.interfaces.NamingContextFactory
java.naming.factory.url.pkgs=org.jboss.naming:org.jnp.interfaces
java.naming.provider.url=localhost:1099

File: Main.java
import javax.naming.InitialContext;
import bean.EmployeeServiceRemote;
public class Main {
public static void main(String[] a) throws Exception {
EmployeeServiceRemote service = null;
// Context compEnv = (Context) new InitialContext().lookup("java:comp/env");
// service = (HelloService)new
// InitialContext().lookup("java:comp/env/ejb/HelloService");
service = (EmployeeServiceRemote) new InitialContext().lookup("EmployeeBean/remote");
service.doAction();
}
}

File: Employee.java
package bean;
import javax.persistence.Entity;
import javax.persistence.EntityListeners;
import javax.persistence.GeneratedValue;
import javax.persistence.Id;
import javax.persistence.PostRemove;
@Entity
public class Employee implements java.io.Serializable {
private int id;
private String firstName;
private String lastName;
@Id
@GeneratedValue
public int getId() {
return id;
}

@PostRemove
public void postRemove()
{
System.out.println("@PostRemove");
}
public void setId(int id) {
this.id = id;
}
public String getFirstName() {
return firstName;
}
public void setFirstName(String first) {
this.firstName = first;
}
public String getLastName() {
return lastName;
}
public void setLastName(String last) {
this.lastName = last;
}
}

File: EmployeeBean.java
package bean;
import javax.ejb.Stateless;
import javax.jws.WebMethod;
import javax.jws.WebService;
@Stateless(name = "EmployeeBeanEJB")
@WebService(serviceName = "EmployeeBeanWebService",
targetNamespace = "http://www.jexp.ru/ejb3/credit")
public class EmployeeBean implements EmployeeServiceLocal, EmployeeServiceRemote {
public EmployeeBean() {
}
@WebMethod(operationName = "CreditCheck")
public boolean validateCC(String cc) {
return true;
}
public void doAction() {
System.out.println("Processing...");
}
}

File: EmployeeServiceLocal.java
package bean;
import javax.ejb.Local;
import javax.ejb.Remote;

@Local
public interface EmployeeServiceLocal{
public void doAction();
}

File: EmployeeServiceRemote.java
package bean;
import javax.ejb.Stateless;
import javax.jws.WebService;

public interface EmployeeServiceRemote {
public void doAction();

}

</source>



== Turn Ejb To Web Service ==



<source lang="java">

File: jndi.properties
java.naming.factory.initial=org.jnp.interfaces.NamingContextFactory
java.naming.factory.url.pkgs=org.jboss.naming:org.jnp.interfaces
java.naming.provider.url=localhost:1099

File: Main.java
import javax.naming.InitialContext;
import bean.CountRemote;
public class Main {
public static void main(String[] a) throws Exception {
String name = "jexp";
CountRemote service = null;
// Context compEnv = (Context) new InitialContext().lookup("java:comp/env");
// service = (HelloService)new
// InitialContext().lookup("java:comp/env/ejb/HelloService");
service = (CountRemote) new InitialContext().lookup("CountBean/remote");
int countVal = 9;
service.set(countVal);
countVal = service.count();
System.out.println(countVal);
System.out.println("Calling count() on beans...");
countVal = service.count();
System.out.println(countVal);
service.remove();
}
}
File: CountBean.java
package bean;
import javax.ejb.Remote;
import javax.ejb.Remove;
import javax.ejb.Stateless;
import javax.jws.WebService;
@Stateless
@Remote(CountRemote.class)
@WebService(serviceName="Counter", portName="CounterPort")
public class CountBean implements CountLocal, CountRemote {
private int val;
public int count() {
System.out.println("count()");
return ++val;
}
public void set(int val) {
this.val = val;
System.out.println("set()");
}
@Remove
public void remove() {
System.out.println("remove()");
}
}

File: CountLocal.java
package bean;

import javax.ejb.Local;
@Local
public interface CountLocal {
/**
* Increments the counter by 1
*/
public int count();
/**
* Sets the counter to val
* @param val
*/
public void set(int val);
/**
* removes the counter
*/
public void remove();
}

File: CountRemote.java
package bean;

import javax.ejb.Remote;
@Remote
public interface CountRemote{
/**
* Increments the counter by 1
*/
public int count();
/**
* Sets the counter to val
* @param val
*/
public void set(int val);
/**
* removes the counter
*/
public void remove();
}

</source>



== Web Method With Return Type And Parameters ==



<source lang="java">

File: EmployeeBean.java

import javax.ejb.Stateless;
import javax.jws.WebMethod;
import javax.jws.WebParam;
import javax.jws.WebResult;
import javax.jws.WebService;
import javax.jws.soap.SOAPBinding;
@Stateless
@WebService(serviceName = "EmployeeBeanService", targetNamespace = "urn:EmployeeBean")
@SOAPBinding(style = SOAPBinding.Style.DOCUMENT)
public class EmployeeBean implements EmployeeServiceLocal, EmployeeServiceRemote {
public EmployeeBean() {
}
@WebMethod
@WebResult(name = "bidNumber")
public Long addBid(@WebParam(name = "User")String userId,
@WebParam(name = "Item")Long itemId,
@WebParam(name = "Price")Double bidPrice) {
System.out.println("Bid for " + itemId + " received with price" + bidPrice);
return 0L;
}
}

File: EmployeeServiceLocal.java

import javax.ejb.Local;
import javax.jws.WebParam;
@Local
public interface EmployeeServiceLocal {
public Long addBid(String userId,Long itemId,Double bidPrice);

}

File: EmployeeServiceRemote.java
import javax.ejb.Remote;

@Remote
public interface EmployeeServiceRemote {
public Long addBid(String userId,Long itemId,Double bidPrice);
}

File: jndi.properties
java.naming.factory.initial=org.jnp.interfaces.NamingContextFactory
java.naming.factory.url.pkgs=org.jboss.naming:org.jnp.interfaces
java.naming.provider.url=localhost:1099

File: Employee.java

import javax.persistence.Entity;
import javax.persistence.EntityListeners;
import javax.persistence.GeneratedValue;
import javax.persistence.Id;
import javax.persistence.PostRemove;
@Entity
public class Employee implements java.io.Serializable {
private int id;
private String firstName;
private String lastName;
@Id
@GeneratedValue
public int getId() {
return id;
}

@PostRemove
public void postRemove()
{
System.out.println("@PostRemove");
}
public void setId(int id) {
this.id = id;
}
public String getFirstName() {
return firstName;
}
public void setFirstName(String first) {
this.firstName = first;
}
public String getLastName() {
return lastName;
}
public void setLastName(String last) {
this.lastName = last;
}
}

File: Main.java
import javax.ejb.EJB;
import javax.naming.InitialContext;

public class Main {
public static void main(String[] a) throws Exception {
EmployeeServiceRemote service = null;
// Context compEnv = (Context) new InitialContext().lookup("java:comp/env");
// service = (HelloService)new
// InitialContext().lookup("java:comp/env/ejb/HelloService");
service = (EmployeeServiceRemote) new InitialContext().lookup("EmployeeBean/remote");

//service.doAction();

}
}

</source>

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Admin: 1 версия

в 18:01, 31 мая 2010