Using AJAX to call a method of controller.

I am working with weblogic 10.2 .I need to call a method of the controller using Ajax (because i don't wan to refresh the whole page).
I am new to Ajax.
Can any one provide me the stub or prototype for calling a method of contoller from jsp using AJax.

Another approach, if you would like to call a Pageflow action and then update only a portion of a portlet with the result, would be to use the Dynamic Content taglib.
http://download.oracle.com/docs/cd/E13155_01/wlp/docs103/javadocjsp/commonui/dc/tld-summary.html
Edited by: Brad Posner on Jan 12, 2009 10:42 AM

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Edited by: 978940 on 2012-12-27 12:32

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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){
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@WebMethod public String getReturn(String inputStr){
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[/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";
$parameters=array(
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$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.

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 {
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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"/>
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      </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.

Calling a method in another JVM instance

I know you can use RMI to call the methods from classes across the network, but if the class is on the same machine, just in another JVM instance, is there a way to bypass the network layer and have the JVMs communicate directly with each other?

Its not so much the overhead, as having the
flexibility, to not have to modify firewall rules
which disallow loop back traffic and most other non
http (port 80) traffic if the production server is
set up that way.You're coding to interfaces anyway, have a factory return either an RMI object which does the actual RMI work, or just a vanilla one if you're just running locally. As far as I know, there isn't a way to entirely circumvent the socket layer with RMI. Anyone know any different?

Call jpf method from jsp

Is there anyway to call a method in Controller.jpf from a jsp page? I want to have my jsp page call a method from the jpf controller through an onChange event in the select tag. Otherwise I will have to write a large amount of javascript directly into my jsp page and really defeats the purpose of the MVC architecture. Any help is greatly appreciated. Thanks in advance.

The jsp might look something like this:
<netui:form action="DoThisOnChange">

<netui:select dataSource"" optionsDataSource="" onChange="this.form.submit()"/>
</netui:form>
And in JPF declare action named "DoThisOnChange" and write the logic to be done on event "onChange".
--SJ

How can we call the method of used controller?

Hi All,
   i created two WDA Applications.( like YWDA1,YWDA2 ) . i am using the component WDA2 in WDA 1.and displaying the one view of WDA2 as popup window in WDA1 on action of one of the input element in the view of WDA1 by using the method l_window_manager->create_window_for_cmp_usage
I have a button on the view of WDA2 which has appear in the popup window...how can i call the method which has binded to that button....and where should i code that...and i need to assign selected value in the popup window to input elemetn of view WDA1
Please help me to resolve this....
Regards,
Ravi

You can not directly call view's event handler from other component.
create a method in component controller of the second component and in the button click call the component controller method. ( also make the method as interface so that you can call it from other components )
Now, you can call the interfacecontroller's method
DATA: l_ref_INTERFACECONTROLLER TYPE REF TO ZIWCI__VSTX_REBATE_REQ_WD .
l_ref_INTERFACECONTROLLER =   wd_This->wd_CpIfc_<comp usage name>( ).
l_ref_INTERFACECONTROLLER->Save_Rr(
    STATUS = '01'                       " Zvstxrrstatus
save_rr is the method of second component controller

Using AJAX to call a method of controller.

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