WSO2 ESB 4.6.0中有关Spring Mediator的工作示例 [英] Working example on Spring Mediator in WSO2 ESB 4.6.0

问题描述

我正在使用本教程

我收到如下错误:

ERROR - SpringMediator Cannot look up Spring configuration conf/sample/resources/spring/springsample.xml

ERROR - SpringMediatorCannot reference application context with key : conf/sample/resources/spring/springsample.xml

能请您解释一下如何解决这个问题.

Could you please explain me how to solve this.

推荐答案

我必须按如下所述进行操作，

I got to work this as below,

该类应扩展AbstractMediator并按如下方法重写mediate()方法，

The class should extends AbstractMediator and override the mediate() method as follows,

package com.test.spring.mediator.workingexampleonspringmediator;

import org.apache.synapse.MessageContext;
import org.apache.synapse.mediators.AbstractMediator;

public class HelloWorld extends AbstractMediator{

           private String message;   
       public void setMessage(String message){
          this.message  = message;
       }

       public boolean mediate(MessageContext arg0) {

          System.out.println("HELLO "+message);
          return true;
    }
}

然后将罐子放在[ESBHOME]/repository/components/lib文件夹中

Then place the jar in [ESBHOME]/repository/components/lib folder

在中介方法中，它使用诸如HELLO 'arg'

In mediate method it prints a message with the argument like HELLO 'arg'

然后我将以下文件添加到注册表(/_system/config/repository/spring/springtest.xml)

And I added the following file to registry (/_system/config/repository/spring/springtest.xml),

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE beans PUBLIC  "-//SPRING//DTD BEAN//EN"
        "http://www.springframework.org/dtd/spring-beans.dtd"> 
<beans>     
   <bean id="springtest" class="com.test.spring.mediator.workingexampleonspringmediator.HelloWorld"  singleton="false">
   <property name="message"><value>ISURU</value></property>
   </bean>
</beans>

我的代理如下，

<proxy xmlns="http://ws.apache.org/ns/synapse" name="testSpring" transports="https,http" statistics="disable" trace="disable" startOnLoad="true">
   <target>
      <inSequence>
         <log level="full">
            <property name="START" value="__________________________"/>
         </log>
         <spring:spring xmlns:spring="http://ws.apache.org/ns/synapse" bean="springtest" key="conf:/repository/spring/springtest.xml"/>
         <log level="full">
            <property name="END" value="______________________"/>
         </log>
      </inSequence>
   </target>
   <description></description>
</proxy>

在代理中，您可以看到bean=[bean id of the springtest.xml]和class=qualified name of the class

In the proxy you can see the bean=[bean id of the springtest.xml] and class=qualified name of the class

在我的ESB终端中，使用springtest.xml中的给定属性值输出了以下内容，

In my ESB terminal, I got the following out put with the given property value in springtest.xml,

[2013-11-07 17:38:30,654]  INFO - LogMediator To: /services/testSpring.testSpringHttpSoap12Endpoint, WSAction: urn:mediate, SOAPAction: urn:mediate, MessageID: urn:uuid:bcae82e9-4027-43c5-bd7a-cbfa885aaf33, Direction: request, START = __________________________, Envelope: <?xml version='1.0' encoding='utf-8'?><soapenv:Envelope xmlns:soapenv="http://www.w3.org/2003/05/soap-envelope"><soapenv:Body/></soapenv:Envelope>
HELLO ISURU
[2013-11-07 17:38:30,692]  INFO - LogMediator To: /services/testSpring.testSpringHttpSoap12Endpoint, WSAction: urn:mediate, SOAPAction: urn:mediate, MessageID: urn:uuid:bcae82e9-4027-43c5-bd7a-cbfa885aaf33, Direction: request, END = ______________________, Envelope: <?xml version='1.0' encoding='utf-8'?><soapenv:Envelope xmlns:soapenv="http://www.w3.org/2003/05/soap-envelope"><soapenv:Body/></soapenv:Envelope>

将jar放入存储库/components/lib后，必须重新启动ESB

You must restart the ESB after placing the jar in repository/components/lib

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