1 / 9

Introduction to JAX-WS 2.0: Building Web Services in Java EE

This lecture provides an in-depth overview of JAX-WS 2.0, a powerful API for creating web services within the Java EE framework. You'll learn how to replace JAX-RPC with JAX-WS, utilize the new packages such as javax.xml.ws and javax.xml.soap, and develop a simple loan approval web service. The session covers essential concepts like service compilation, annotation processing, and generating client stubs. By the end of this lecture, you'll be equipped with the knowledge to implement web services and manage client-server interactions effectively.

bernie
Télécharger la présentation

Introduction to JAX-WS 2.0: Building Web Services in Java EE

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Service Oriented Architecture Lecture 2: JAX-WS 2.0 Master of Information System Management

  2. JAX-WS 2.0 • Part of Java EE. • New in Java SE 6. • API stack for web services. • Replaces JAX-RPC. • New API’s: JAX-WS, SAAJ, Web Service metadata • New packages: javax.xml.ws, javax.xml.soap,javax.jws Master of Information System Management

  3. Writing A Web Service package loanservice; import javax.jws.WebService; import javax.jws.WebMethod; import javax.xml.ws.Endpoint; @WebService public class LoanApprover { @WebMethod public boolean approve(String name) { return name.equals("Mike"); } Master of Information System Management

  4. public static void main(String[] args){ LoanApprover la = new LoanApprover(); Endpoint endpoint = Endpoint.publish( "http://localhost:8080/loanapprover", la); } } Master of Information System Management

  5. Compile The Service Create a myservice directory. From the directory just above loanservice, run Java’s Annotation Processing Tool (APT): C:\>apt -d myservice loanservice/LoanApprover.java This populates a directory named myservice. If you copy these commands from the slides you may have to retype those strings containing the “-” character. Master of Information System Management

  6. Publish the Service From a directory just above myservice: C:\>java -cp myservice loanservice/LoanApprover To view the WSDL, visit the service with a browser at http://localhost:8080/loanapprover?wsdl Master of Information System Management

  7. Generate Stub Code Make a client directory. C:\>wsimport –p client –keep http://localhost:8080/loanapprover?wsdl This populates the client subdirectory with .class and .java files. Master of Information System Management

  8. Write the Client package client; class ApproverClient { public static void main(String args[]){ LoanApproverService service = new LoanApproverService(); LoanApprover approverProxy = service.getLoanApproverPort(); boolean result = approverProxy.approve("Mike"); if(result) System.out.println("Approved"); else System.out.println("Not approved"); } } Master of Information System Management

  9. Compile & Run the Client C:\>javac –cp . client/ApproverClient.java C:\>java -cp . client/ApproverClient Approved Master of Information System Management

More Related