PHP using soap to call EJB

Question

Hello everybody,
I've a problem to call a EJB form a PHP script.
There is a Apache with PHP 5.2.0 and a SAP NetWeaver Application Server 7.10 / AS Java 7.10 running on the system.
I wanted to use soap to call a method in an EJB. It's only a test EJB:
[code]
package beans;
import javax.ejb.Stateless;
import javax.jws.WebService;
import javax.jws.WebMethod;
@WebService(name="HelloWorldEARBean",serviceName="HelloWorldEARBeanService",targetNamespace="http://beans/",portName="HelloWorldEARBeanPort") @Stateless public class HelloWorldEARBean {
  @WebMethod public String sayHello(String testStr){
            return "Hello Mr. "+testStr;
  @WebMethod public String getReturn(String inputStr){
            return "the return value is"+inputStr;
[/code]
I tried it with the PEAR SOAP in the following script:
[code]
<?php
require_once 'SOAP/Client.php';
$wsdl_url     = 'http://localhost:50000/HelloWorldEARBeanService/HelloWorldEARBean?wsdl';
$WSDL = new SOAP_WSDL($wsdl_url);
$client = $WSDL->getProxy();
$client->__trace(1);
$options=array('namespace' => 'http://beans/',
  'style' => 'rpc',
  'soapaction' => 'sayHello');
$NAME = "Bob"; 
$parameters=array(
     'parameters', $NAME
$result = $client->getReturn($parameters);
echo "<pre>";
print_r($params);
echo "</pre>";
echo "<h2>return</h2>";
echo "<pre>";
print_r($result);
echo "</pre>";
echo '<h2>Request</h2>';
echo '<pre>' . htmlspecialchars($client->__getlastrequest(), ENT_QUOTES) . '</pre>';
echo '<h2>Response</h2>';
echo '<pre>' . htmlspecialchars($client->__getlastresponse(), ENT_QUOTES). '</pre>';
?>
[/code]
The AS distributes the following WSDL:
[code]
- <wsdl:definitions xmlns:wsdl="http://schemas.xmlsoap.org/wsdl/" targetNamespace="http://beans/" xmlns:tns="http://beans/">
- <wsdl:types>
- <xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema" version="1.0" targetNamespace="http://beans/">
  <xs:element name="getReturn" type="tns:getReturn" />
  <xs:element name="getReturnResponse" type="tns:getReturnResponse" />
  <xs:element name="sayHello" type="tns:sayHello" />
  <xs:element name="sayHelloResponse" type="tns:sayHelloResponse" />
- <xs:complexType name="sayHello">
- <xs:sequence>
  <xs:element name="arg0" type="xs:string" minOccurs="0" />
  </xs:sequence>
  </xs:complexType>
- <xs:complexType name="sayHelloResponse">
- <xs:sequence>
  <xs:element name="return" type="xs:string" minOccurs="0" />
  </xs:sequence>
  </xs:complexType>
- <xs:complexType name="getReturn">
- <xs:sequence>
  <xs:element name="arg0" type="xs:string" minOccurs="0" />
  </xs:sequence>
  </xs:complexType>
- <xs:complexType name="getReturnResponse">
- <xs:sequence>
  <xs:element name="return" type="xs:string" minOccurs="0" />
  </xs:sequence>
  </xs:complexType>
  </xs:schema>
  </wsdl:types>
- <wsdl:message name="sayHelloIn">
  <wsdl:part name="parameters" element="tns:sayHello" />
  </wsdl:message>
- <wsdl:message name="sayHelloOut">
  <wsdl:part name="sayHelloResponse" element="tns:sayHelloResponse" />
  </wsdl:message>
- <wsdl:message name="getReturnIn">
  <wsdl:part name="parameters" element="tns:getReturn" />
  </wsdl:message>
- <wsdl:message name="getReturnOut">
  <wsdl:part name="getReturnResponse" element="tns:getReturnResponse" />
  </wsdl:message>
- <wsdl:portType name="HelloWorldEARBean">
- <wsdl:operation name="sayHello" parameterOrder="parameters">
  <wsdl:input message="tns:sayHelloIn" />
  <wsdl:output message="tns:sayHelloOut" />
  </wsdl:operation>
- <wsdl:operation name="getReturn" parameterOrder="parameters">
  <wsdl:input message="tns:getReturnIn" />
  <wsdl:output message="tns:getReturnOut" />
  </wsdl:operation>
  </wsdl:portType>
- <wsdl:binding name="HelloWorldEARBeanBinding" xmlns:soap="http://schemas.xmlsoap.org/wsdl/soap/" type="tns:HelloWorldEARBean">
  <soap:binding style="document" transport="http://schemas.xmlsoap.org/soap/http" />
- <wsdl:operation name="sayHello">
  <soap:operation soapAction="" />
- <wsdl:input>
  <soap:body parts="parameters" use="literal" />
  </wsdl:input>
- <wsdl:output>
  <soap:body use="literal" />
  </wsdl:output>
  </wsdl:operation>
- <wsdl:operation name="getReturn">
  <soap:operation soapAction="" />
- <wsdl:input>
  <soap:body parts="parameters" use="literal" />
  </wsdl:input>
- <wsdl:output>
  <soap:body use="literal" />
  </wsdl:output>
  </wsdl:operation>
  </wsdl:binding>
- <wsdl:service name="HelloWorldEARBeanService">
- <wsdl:port name="HelloWorldEARBeanPort" binding="tns:HelloWorldEARBeanBinding">
  <soap:address xmlns:soap="http://schemas.xmlsoap.org/wsdl/soap/" location="http://localhost:50000/HelloWorldEARBeanService/HelloWorldEARBean" />
  </wsdl:port>
  </wsdl:service>
  </wsdl:definitions>
[/code]
By the following output it's obvious that the AS or the EJB (webservice) doesn't receive the parameter send by the PHP script. Look at the output:
return value:
the return value is null
[code]
Request:
POST /HelloWorldEARBeanService/HelloWorldEARBean HTTP/1.0
User-Agent: PEAR-SOAP 0.8.0RC4-devel
Host: localhost
Content-Type: text/xml; charset=UTF-8
Content-Length: 438
SOAPAction: ""
<?xml version="1.0" encoding="UTF-8"?>
<SOAP-ENV:Envelope  xmlns:SOAP-ENV="http://schemas.xmlsoap.org/soap/envelope/"
xmlns:xsd="http://www.w3.org/2001/XMLSchema"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:SOAP-ENC="http://schemas.xmlsoap.org/soap/encoding/"
>
<SOAP-ENV:Body>
<getReturn xmlns="http://beans/">
<item>parameters</item>
<item>Bob</item></getReturn>
</SOAP-ENV:Body>
</SOAP-ENV:Envelope>
Response:
HTTP/1.1 200 OK
server: SAP NetWeaver Application Server 7.10 / AS Java 7.10
content-type: text/xml; charset=utf-8
date: Wed, 14 Feb 2007 15:51:53 GMT
connection: close
<?xml version="1.0" encoding="utf-8"?>
<SOAP-ENV:Envelope xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:SOAP-ENV="http://schemas.xmlsoap.org/soap/envelope/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<SOAP-ENV:Header><wsse:Security xmlns:wsse="http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-secext-1.0.xsd">
<wsu:Timestamp xmlns:wsu="http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-utility-1.0.xsd">
<wsu:Created>2007-02-14T15:51:53Z</wsu:Created>
<wsu:Expires>2007-02-14T15:52:23Z</wsu:Expires></wsu:Timestamp></wsse:Security></SOAP-ENV:Header>
<SOAP-ENV:Body><ns2:getReturnResponse xmlns:ns2='http://beans/'>
<return>the return value is null</return></ns2:getReturnResponse></SOAP-ENV:Body></SOAP-ENV:Envelope>
[/code]
I used different soap interfaces for PHP like nusoap and the integrated soap interface of PHP 5.
Further I experimented with different parameters inside the function call
that results in small differencies at the xml-request.
Thanks.

Answer 1

Hi
I've solved the problem now. I just have to add
@SOAPBinding(style=SOAPBinding.Style.RPC)
in the EJB, that's all.
Here is the complete code, ... maybe some other guys have this problem too, so I will post the working code:
At first the EJB:
package beans;
import javax.ejb.Stateless;
import javax.jws.WebParam;
import javax.jws.WebService;
import javax.jws.WebMethod;
import javax.jws.soap.SOAPBinding;
import beans.HelloWorldEARBean;
@WebService(name="HelloWorldEARBean",serviceName="HelloWorldEARBeanService",targetNamespace="http://beans/",portName="HelloWorldEARBeanPort")
@SOAPBinding(style=SOAPBinding.Style.RPC)
@Stateless public class HelloWorldEARBean {
     @WebMethod public String sayHello(@WebParam(name="testStr") String testStr){
            return "Hello Mr. "+testStr;
2. the local XML:
<wsdl:definitions xmlns:wsdl="http://schemas.xmlsoap.org/wsdl/" targetNamespace="http://beans/" xmlns:tns="http://beans/">
  <wsdl:types>
    <xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema" version="1.0" targetNamespace="http://beans/">
      <xs:element name="sayHello" type="tns:sayHello"/>
      <xs:element name="sayHelloResponse" type="tns:sayHelloResponse"/>
      <xs:complexType name="sayHello">
          <xs:element name="testStr" type="xs:string" minOccurs="0"/>
      </xs:complexType>
      <xs:complexType name="sayHelloResponse">
          <xs:element name="return" type="xs:string" minOccurs="0"/>
      </xs:complexType>
    </xs:schema>
  </wsdl:types>
  <wsdl:message name="sayHelloIn">
    <wsdl:part name="parameters" element="tns:sayHello"/>
  </wsdl:message>
  <wsdl:message name="sayHelloOut">
    <wsdl:part name="sayHelloResponse" element="tns:sayHelloResponse"/>
  </wsdl:message>
  <wsdl:portType name="HelloWorldEARBean">
    <wsdl:operation name="sayHello" parameterOrder="parameters">
      <wsdl:input message="tns:sayHelloIn"/>
      <wsdl:output message="tns:sayHelloOut"/>
    </wsdl:operation>
  </wsdl:portType>
  <wsdl:binding name="HelloWorldEARBeanBinding" xmlns:soap="http://schemas.xmlsoap.org/wsdl/soap/" type="tns:HelloWorldEARBean">
    <soap:binding style="document" transport="http://schemas.xmlsoap.org/soap/http"/>
    <wsdl:operation name="sayHello">
      <soap:operation soapAction=""/>
      <wsdl:input>
        <soap:body parts="parameters" use="literal"/>
      </wsdl:input>
      <wsdl:output>
        <soap:body use="literal"/>
      </wsdl:output>
    </wsdl:operation>
  </wsdl:binding>
  <wsdl:service name="HelloWorldEARBeanService">
    <wsdl:port name="HelloWorldEARBeanPort" binding="tns:HelloWorldEARBeanBinding">
      <soap:address xmlns:soap="http://schemas.xmlsoap.org/wsdl/soap/" location="http://localhost:50000/HelloWorldEARBeanService/HelloWorldEARBean"/>
    </wsdl:port>
  </wsdl:service>
</wsdl:definitions>
3. the PHP script:
see next post
Thank you very much for your help.