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Wso2 如何转换（JSON-toXML）请求和响应（XML到JSON）以调用外部Soap服务

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Wso2 如何转换（JSON-toXML）请求和响应（XML到JSON）以调用外部Soap服务,wso2,wso2esb,wso2carbon,Wso2,Wso2esb,Wso2carbon,我是wso2的新手。。我的要求是 1） 我想将传入的JSON请求转换为XML格式 2） 将该XML请求发送到外部SOAP服务 3） 响应将以XML形式获取，并需要将其转换为JSON格式 有人做过吗？如果是的话，你能分享一下你是怎么做的吗 我有以下代理服务配置 `<?xml version="1.0" encoding="UTF-8"?> <proxy xmlns="http://ws.apache.org/ns/synapse" name="CelsiusToFa

我是wso2的新手。。我的要求是

1） 我想将传入的JSON请求转换为XML格式

2） 将该XML请求发送到外部SOAP服务

3） 响应将以XML形式获取，并需要将其转换为JSON格式

有人做过吗？如果是的话，你能分享一下你是怎么做的吗

我有以下代理服务配置

`<?xml version="1.0" encoding="UTF-8"?>
<proxy xmlns="http://ws.apache.org/ns/synapse"
       name="CelsiusToFahrenheitService"
       transports="https,http"
       statistics="disable"
       trace="disable"
       startOnLoad="true">
   <target>
      <inSequence>
         <property name="messageType" value="text/xml" scope="axis2"/>
         <property name="Proxy-Authorization"
                   expression="fn:concat('Basic', base64Encode('INDIA\username:pwd'))"
                   scope="transport"/>
         <property name="POST_TO_URI" value="true" scope="axis2"/>
         <property name="DISABLE_CHUNKING" value="true" scope="axis2"/>
         <header name="Action"
                 value="http://www.w3schools.com/webservices/CelsiusToFahrenheit"/>
         <send>
            <endpoint>
               <address uri="http://www.w3schools.com/webservices/tempconvert.asmx"
                        format="soap11"/>
            </endpoint>
         </send>
      </inSequence>
      <outSequence>
         <property name="messageType" value="text/xml" scope="axis2"/>
         <send/>
      </outSequence>
   </target>
   <description/>
</proxy>`

`
)

我已经这样做了我的配置（不知道它是否正确）



var cel=mc.getPayloadJSON（）.CelsiusToFahrenheit.cercifies.toString（）；
mc.setPayloadXML(
CelsiusToFahrenheit xmlns=”http://www.w3schools.com/webservices/"
摄氏度{cel}/摄氏度
/CelsiusToFahrenheit）；


但是我得到了这样的例外


`[2014-03-20 18:19:02,391]  INFO - LogMediator To: /services/JsonToXMLProxy.JsonToXMLProxyHttpEndpoint, MessageID: urn:uuid:a2eeeb26-94e1-4ed1-a3f9-79f1d1461821, Direction: request, Envelope: <?xml version="1.0" encoding="utf-8"?><soapenv:Envelope xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/"><soapenv:Body><CelsiusToFahrenheit xmlns="http://www.w3schools.com/webservices/"><Celsius>20</Celsius></CelsiusToFahrenheit></soapenv:Body></soapenv:Envelope>
[2014-03-20 18:19:03,130]  WARN - ClientHandler Received an unexpected response - of content type : text/html and status code : 411 with reason : Length Required For : 172.26.40.214:8080 For Request : Axis2Request [Message ID : urn:uuid:39d47344-f74c-4ec5-855b-5eb90e178b6d] [Status Completed : true] [Status SendingCompleted : true]
[2014-03-20 18:19:04,133]  INFO - BuilderUtil OMException in getSOAPBuilder
org.apache.axiom.om.OMException: SOAP message MUST NOT contain a Document Type Declaration(DTD)
        at org.apache.axiom.soap.impl.builder.StAXSOAPModelBuilder.createDTD(StAXSOAPModelBuilder.java:462)
        at org.apache.axiom.om.impl.builder.StAXOMBuilder.next(StAXOMBuilder.java:282)
        at org.apache.axiom.soap.impl.builder.StAXSOAPModelBuilder.getSOAPEnvelope(StAXSOAPModelBuilder.java:204)
        at org.apache.axiom.soap.impl.builder.StAXSOAPModelBuilder.<init>(StAXSOAPModelBuilder.java:154)
        at org.apache.axiom.soap.impl.builder.StAXSOAPModelBuilder.<init>(StAXSOAPModelBuilder.java:140)
        at org.apache.axis2.builder.BuilderUtil.getSOAPBuilder(BuilderUtil.java:659)
        at org.apache.axis2.transport.TransportUtils.createDocumentElement(TransportUtils.java:198)
        at org.apache.axis2.transport.TransportUtils.createSOAPMessage(TransportUtils.java:146)
        at org.apache.synapse.transport.nhttp.ClientWorker.run(ClientWorker.java:253)
        at org.apache.axis2.transport.base.threads.NativeWorkerPool$1.run(NativeWorkerPool.java:172)
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603)
        at java.lang.Thread.run(Thread.java:722)
[2014-03-20 18:19:04,137]  INFO - BuilderUtil Remaining input stream :[]
[2014-03-20 18:19:04,137]  WARN - ClientWorker Unexpected response received. HTTP response code : 411 HTTP status : Length Required exception : SOAP message MUST NOT contain a Document Type Declaration(DTD)
[2014-03-20 18:19:04,153]  INFO - LogMediator To: http://www.w3.org/2005/08/addressing/anonymous, WSAction: , SOAPAction: , MessageID: urn:uuid:39d47344-f74c-4ec5-855b-5eb90e178b6d, Direction: response, Envelope: <?xml version="1.0" encoding="utf-8"?><soapenv:Envelope xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/"><soapenv:Body><soapenv:Fault><faultcode>411</faultcode><faultstring>Unexpected response received. HTTP response code : 411 HTTP status : Length Required exception : SOAP message MUST NOT contain a Document Type Declaration(DTD)</faultstring><detail>Unexpected response received. HTTP response code : 411 HTTP status : Length Required exception : SOAP message MUST NOT contain a Document Type Declaration(DTD)</detail></soapenv:Fault></soapenv:Body></soapenv:Envelope>`



`[2014-03-20 18:19:02391]INFO-LogMediator To:/services/JsonToXMLProxy.JsonToXMLProxyHttpEndpoint，MessageID:urn:uuid:a2eeeb26-94e1-4ed1-a3f9-79f1d1461821，方向：请求，信封：20
[2014-03-20 18:19:03130]警告-ClientHandler收到意外响应-内容类型：text/html，状态代码：411，原因：请求所需长度：172.26.40.214:8080请求：Axis2Request[消息ID:urn:uuid:39d47344-f74c-4ec5-855b-5eb90e178b6d][状态完成：true][状态发送完成：true]
[2014-03-20 18:19:04133]信息-直到getSOAPBuilder中的OmeException
org.apache.axiom.om.OmeException:SOAP消息不能包含文档类型声明（DTD）
位于org.apache.axiom.soap.impl.builder.StAXSOAPModelBuilder.createDTD（StAXSOAPModelBuilder.java:462）
位于org.apache.axiom.om.impl.builder.StAXOMBuilder.next（StAXOMBuilder.java:282）
位于org.apache.axiom.soap.impl.builder.StAXSOAPModelBuilder.getSOAPEnvelope（StAXSOAPModelBuilder.java:204）
位于org.apache.axiom.soap.impl.builder.StAXSOAPModelBuilder（StAXSOAPModelBuilder.java:154）
位于org.apache.axiom.soap.impl.builder.statxsoapmodelbuilder（statxsoapmodelbuilder.java:140）
位于org.apache.axis2.builder.BuilderUtil.getSOAPBuilder（BuilderUtil.java:659）
位于org.apache.axis2.transport.TransportUtils.createDocumentElement（TransportUtils.java:198）
在org.apache.axis2.transport.TransportUtils.createSOAPMessage（TransportUtils.java:146）上
位于org.apache.synapse.transport.nhttp.ClientWorker.run（ClientWorker.java:253）
位于org.apache.axis2.transport.base.threads.NativeWorkerPool$1.run（NativeWorkerPool.java:172）
位于java.util.concurrent.ThreadPoolExecutor.runWorker（ThreadPoolExecutor.java:1110）
位于java.util.concurrent.ThreadPoolExecutor$Worker.run（ThreadPoolExecutor.java:603）
运行（Thread.java:722）
[2014-03-20 18:19:04137]信息-构建器直到剩余的输入流：[]
[2014-03-20 18:19:04137]警告-收到客户端工作人员意外响应。HTTP响应代码：411 HTTP状态：所需长度异常：SOAP消息不能包含文档类型声明（DTD）
[2014-03-20 18:19:04153]信息-日志调解人收件人：http://www.w3.org/2005/08/addressing/anonymous，WSAction:，SOAPAction:，MessageID:urn:uuid:39d47344-f74c-4ec5-855b-5eb90e178b6d，方向：响应，信封：411收到预期响应。HTTP响应代码：411 HTTP状态：所需长度异常：SOAP消息不能包含收到的文档类型声明（DTD）意外响应。HTTP响应代码：411 HTTP状态：所需长度异常：SOAP消息不能包含文档类型声明（DTD）`


请帮我解决这个问题


提前感谢。
您可以使用此示例使用de payloadfactory mediator来构建消息，它在您的场景中适用于我：


<?xml version="1.0" encoding="UTF-8"?>
<proxy xmlns="http://ws.apache.org/ns/synapse"
       name="JsonToXMLProxy"
       transports="https http local"
       startOnLoad="true"
       trace="disable">
   <description/>
   <target>
      <endpoint>
         <address uri="http://www.w3schools.com/webservices/tempconvert.asmx" format="soap11"/>
      </endpoint>
      <inSequence>
         <log>
            <property name="TEMPERATURA_ENTRADA" expression="json-eval($.celsius)"/>
         </log>
         <payloadFactory media-type="xml">
            <format>
               <web:CelsiusToFahrenheit xmlns:web="http://www.w3schools.com/webservices/">
                  <web:Celsius>$1</web:Celsius>
               </web:CelsiusToFahrenheit>
            </format>
            <args>
               <arg evaluator="json" expression="$.celsius"/>
            </args>
         </payloadFactory>
         <header name="Action"
                 value="http://www.w3schools.com/webservices/CelsiusToFahrenheit"/>
      </inSequence>
      <outSequence>
         <log>
            <property xmlns:p="http://www.w3schools.com/webservices/"
                      name="TEMPERATURA_SALIDA"
                      expression="//p:CelsiusToFahrenheitResponse/p:CelsiusToFahrenheitResult"/>
         </log>
         <payloadFactory media-type="json">
            <format>
                            "Temperatura" : {
                                "EnFahrenheit" : $1
                            }
            </format>
            <args>
               <arg xmlns:p="http://www.w3schools.com/webservices/"
                    evaluator="xml"
                    expression="//p:CelsiusToFahrenheitResponse/p:CelsiusToFahrenheitResult"/>
            </args>
         </payloadFactory>
         <property name="messageType" value="application/json" scope="axis2"/>
         <send/>
      </outSequence>
   </target>
</proxy>




$1
“温度”：{
“华氏温度”：$1
}