Hello,
I would like for a ws client to retrieve an image from a ws endpoint. I am
totally confused as to what encoding style to choose as well as how to
implement it.
Here is the code for the client:
| package pack;
|
|
| import java.awt.Image;
| import java.io.*;
|
| import javax.servlet.*;
| import javax.servlet.http.*;
|
| public class ServletFetchesAttachment extends HttpServlet {
|
| protected void processRequest(HttpServletRequest request,
HttpServletResponse response)
| throws ServletException, IOException {
|
| System.out.println("processRequest");
|
| PrintWriter out = response.getWriter();
| try {
| Image img =
getProvidesAttachmentSEIPort().retrieveAttachment();
| } catch(java.rmi.RemoteException ex) {
| ex.printStackTrace();
| } catch(Exception ex) {
| ex.printStackTrace();
| }
| out.close();
| }
|
| // <editor-fold defaultstate="collapsed" desc="HttpServlet methods.
Click on the + sign on the left to edit the code.">
| /** Handles the HTTP <code>GET</code> method.
| * @param request servlet request
| * @param response servlet response
| */
| protected void doGet(HttpServletRequest request, HttpServletResponse
response)
| throws ServletException, IOException {
| processRequest(request, response);
| }
|
| /** Handles the HTTP <code>POST</code> method.
| * @param request servlet request
| * @param response servlet response
| */
| protected void doPost(HttpServletRequest request, HttpServletResponse
response)
| throws ServletException, IOException {
| processRequest(request, response);
| }
|
| /** Returns a short description of the servlet.
| */
| public String getServletInfo() {
| return "Short description";
| }
| // </editor-fold>
|
| private pack.ProvidesAttachment getProvidesAttachment() {
| pack.ProvidesAttachment providesAttachment = null;
| try {
| javax.naming.InitialContext ic = new
javax.naming.InitialContext();
| providesAttachment = (pack.ProvidesAttachment)
ic.lookup("java:comp/env/service/ProvidesAttachment");
| } catch(javax.naming.NamingException ex) {
| ex.printStackTrace();
| }
| return providesAttachment;
| }
|
| private pack.ProvidesAttachmentSEI getProvidesAttachmentSEIPort() {
| pack.ProvidesAttachmentSEI providesAttachmentSEIPort = null;
| try {
| providesAttachmentSEIPort =
getProvidesAttachment().getProvidesAttachmentSEIPort();
| } catch(javax.xml.rpc.ServiceException ex) {
| ex.printStackTrace();
|
| }
| return providesAttachmentSEIPort;
| }
|
|
| }
|
|
Here is the code for the endpoint:
| package pack;
|
| import java.awt.Image;
| import java.awt.Toolkit;
| import java.net.MalformedURLException;
| import java.net.URL;
|
|
| public class ProvidesAttachmentImpl implements ProvidesAttachmentSEI{
|
| public Image retrieveAttachment() throws java.rmi.RemoteException {
| URL url=null;
| Image image = null;
| try {
| url = new URL("file:///home//julien//tests//logo.gif");
| image = Toolkit.getDefaultToolkit().createImage(url);
|
| } catch (MalformedURLException ex) {
| ex.printStackTrace();
| }
| return image;
| }
|
| }
|
Here is the wsdl:
| <?xml version="1.0" encoding="UTF-8"?>
| <definitions name="ProvidesAttachment"
targetNamespace="urn:ProvidesAttachment/wsdl"
xmlns="http://schemas.xmlsoap.org/wsdl/";
xmlns:ns2="http://java.sun.com/jax-rpc-ri/internal";
xmlns:soap="http://schemas.xmlsoap.org/wsdl/soap/";
xmlns:tns="urn:ProvidesAttachment/wsdl"
xmlns:xsd="http://www.w3.org/2001/XMLSchema";>
| <types>
| <schema targetNamespace="http://java.sun.com/jax-rpc-ri/internal";
xmlns="http://www.w3.org/2001/XMLSchema";
xmlns:soap11-enc="http://schemas.xmlsoap.org/soap/encoding/";
xmlns:tns="http://java.sun.com/jax-rpc-ri/internal";
xmlns:wsdl="http://schemas.xmlsoap.org/wsdl/";
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance";>
| <import namespace="http://schemas.xmlsoap.org/soap/encoding/"/>
| <simpleType name="image">
| <restriction base="base64Binary"/></simpleType></schema>
| </types>
| <message name="ProvidesAttachmentSEI_retrieveAttachmentResponse">
| <part name="result" type="ns2:image"/>
|
| </message>
| <message name="ProvidesAttachmentSEI_retrieveAttachment">
| </message>
| <portType name="ProvidesAttachmentSEI">
| <operation name="retrieveAttachment">
| <input message="tns:ProvidesAttachmentSEI_retrieveAttachment"/>
| <output
message="tns:ProvidesAttachmentSEI_retrieveAttachmentResponse"/>
| </operation>
| </portType>
|
| <binding name="ProvidesAttachmentSEIBinding"
type="tns:ProvidesAttachmentSEI">
| <soap:binding style="rpc"
transport="http://schemas.xmlsoap.org/soap/http"/>
| <operation name="retrieveAttachment">
| <soap:operation soapAction=""/>
| <input>
| <soap:body
encodingStyle="http://schemas.xmlsoap.org/soap/encoding/";
namespace="urn:ProvidesAttachment/wsdl" use="encoded"/>
| </input>
| <output>
| <soap:body
encodingStyle="http://schemas.xmlsoap.org/soap/encoding/";
namespace="urn:ProvidesAttachment/wsdl" use="encoded"/>
|
| </output>
| </operation>
| </binding>
| <service name="ProvidesAttachment">
| <port binding="tns:ProvidesAttachmentSEIBinding"
name="ProvidesAttachmentSEIPort">
| <soap:address
location="http://ordinateur:8080/WebAppProvidesAttachment/ProvidesAttachment"/>
| </port>
| </service>
| </definitions>
|
Any help greatly appreciated.
Thanks in advance,
Julien.
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