Java/EJB3/Web Services
Содержание
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>
