[英]WSO2 ESB Iterate over DSS response (json array)
I have a problem to iterate over call response of a dss.我在迭代 dss 的呼叫响应时遇到问题。 I have 2 servers我有2台服务器
WSO2 ESB server (4.9.0) WSO2 Application Server (5.3.0) with Data Service (4.3.4) feature installed安装了数据服务 (4.3.4) 功能的 WSO2 ESB 服务器 (4.9.0) WSO2 应用程序服务器 (5.3.0)
i make a payload我做一个有效载荷
<payloadFactory media-type="xml">
<format>
<p:valoresReport xmlns:p="ReportsDataService">
<xs:uuid xmlns:xs="ReportsDataService">$1</xs:uuid>
</p:valoresReport>
</format>
<args>
<arg value="123456789"/>
</args>
</payloadFactory>
and do a call through an endpoint并通过端点进行呼叫
<call blocking="true">
<endpoint key="ReportsDataServiceEndPoint"/>
</call>
The response is:回应是:
<ReportRowSet xmlns="ReportsDataService">
<reportRow>
<column1>1</column1>
<column2>2</column2>
<column3>3</column3>
</reportRow>
<reportRow>
<column1>columna 1</column1>
<column2>olumna 2</column2>
<column3>columna 3</column3>
</reportRow>
</ReportRowSet>
To read the response, i change de messageType to json要阅读响应,我将 de messageType 更改为 json
<property name="messageType" scope="axis2" type="STRING" value="application/json"/>
and get the value with json-eval.并使用 json-eval 获取值。
<property expression="json-eval($.ReportRowSet.reportRow)" name="rows"
scope="default" type="STRING"/>
I can log the property我可以记录财产
<log level="custom">
<property expression="$ctx:rows" name="ROWS"/>
</log>
output:输出:
[2016-05-31 16:21:38,489] INFO - LogMediator ROWS = [{"column1":1,"column3":3,"column2":2},{"column1":"columna 1","column3":"columna 3","column2":"olumna 2"}]
But when i try to iterate the rows, i dont know how to do this (this way does not work)但是当我尝试迭代行时,我不知道该怎么做(这种方式不起作用)
<iterate continueParent="true" expression="$ctx:rows"
id="MyIterator" sequential="true">
<target>
<sequence>
...
also i tried with no success (without changing the messagetype):我也尝试过但没有成功(没有改变消息类型):
<iterate continueParent="true" expression="//ReportRowSet/reportRow"
id="MyIterator" sequential="true">
whats the correct form to do this integration and iteration.进行这种集成和迭代的正确形式是什么。
I let you my dss and sequence:我让你我的 dss 和序列:
ReportsDataService.dbs: [ https://drive.google.com/open?id=0B44t8SdKZz79ellKVmpkM0t6Rmc ] ReportsDataService.dbs:[ https://drive.google.com/open?id=0B44t8SdKZz79ellKVmpkM0t6Rmc ]
GenerarReporteSequence.xml: [ https://drive.google.com/open?id=0B44t8SdKZz79YlkxMnNnNm8weGs ] GenerarReporteSequence.xml:[ https://drive.google.com/open?id=0B44t8SdKZz79YlkxMnNnNm8weGs ]
Try with proper namespace in your iterator mediator, sample below,尝试在迭代器介体中使用适当的命名空间,示例如下,
<iterate xmlns:ns1="ReportsDataService" id="MyIterator" expression="//ns1:ReportRowSet/ns1:reportRow" sequential="true">
<target>
<sequence>
<log level="custom">
<property name="col" expression="//ns1:column1"/>
</log>
<call>
<endpoint>
<http uri-template="http://endpoint.url"/>
</endpoint>
</call>
</sequence>
</target>
</iterate>
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