我正在使用wso2esb 4.7.0和wso2dss 3.1.0。我的场景是我希望选择所有关于特定clientid的partybranch。为此目的，我发起了一个类似的查询：
select partybranchid,clientid from mpartybranch where clientid = 473906852857651
它给了我2条记录的列表，如：
partybranchid clientid
-2500000000 473906852857651
796243010946586 473906852857651
我希望将这两个分开并找出有关它们的地址。我在dss中使用以下查询，它对我来说是单独的：
select * from address where partybranchid = ? and clientid =?
现在我在wso2esb中使用了iterator mediator来实现这一点。我的配置是：
<iterate xmlns:f="http://ws.wso2.org/dataservice" continueParent="true" preservePayload="true" expression="//f:Datalist" id="iterate1" sequential="true">
<target>
<sequence>
<property xmlns:s="http://ws.wso2.org/dataservice" name="partybranchid1" expression="//s:partybranchid/text()" scope="default" type="STRING"/>
<property xmlns:s="http://ws.wso2.org/dataservice" name="latitude" expression="get-property('latitude')"/>
<property xmlns:s="http://ws.wso2.org/dataservice" name="longitude" expression="get-property('longitude')"/>
<property xmlns:s="http://ws.wso2.org/dataservice" name="radius" expression="get-property('radius')"/>
<payloadFactory media-type="xml">
<format>
<p:select_addresses_op xmlns:p="http://ws.wso2.org/dataservice">
<p:latitude>$1</p:latitude>
<p:longitude>$2</p:longitude>
<p:radius>$3</p:radius>
<p:objectid>$4</p:objectid>
</p:select_addresses_op>
</format>
<args>
<arg xmlns:s="http://ws.wso2.org/dataservice" expression="get-property('latitude')" evaluator="xml"/>
<arg xmlns:s="http://ws.wso2.org/dataservice" expression="get-property('longitude')" evaluator="xml"/>
<arg xmlns:s="http://ws.wso2.org/dataservice" expression="get-property('radius')" evaluator="xml"/>
<arg xmlns:s="http://ws.wso2.org/dataservice" expression="get-property('partybranchid1')" evaluator="xml"/>
</args>
</payloadFactory>
<property name="FORCE_SC_ACCEPTED" value="true" scope="axis2"/>
<property name="messageType" value="application/json" scope="axis2"/>
<send receive="spatial_seq3">
<endpoint>
<address uri="http://localhost:9764/services/Aspatialtrial_Dataservice/" format="soap11"/>
</endpoint>
</send>
</sequence>
</target>
</iterate>
此配置正在运行，但未提供预期的输出。以下是客户端和服务器端的输出：
在服务器端（ESB）输出：
[2014-09-25 09:52:30,941] INFO - LogMediator To: /services/spatial_proxy_test, MessageID: urn:uuid:c91c22b6-245f-49f7-bf30-65561c87050f, Direction: request, userid = null, username = vikash|214057357158656, password = gbadmin
[2014-09-25 09:52:30,953] INFO - TimeoutHandler This engine will expire all callbacks after : 120 seconds, irrespective of the timeout action, after the specified or optional timeout
[2014-09-25 09:52:31,286] INFO - LogMediator To: http://www.w3.org/2005/08/addressing/anonymous, WSAction: , SOAPAction: , MessageID: urn:uuid:9fa3c017-27f5-405e-a11b-33a9fa9a8f44, Direction: response, kk = true, Envelope: <?xml version='1.0' encoding='utf-8'?><soapenv:Envelope xmlns:soapenv="http://www.w3.org/2003/05/soap-envelope"><soapenv:Body><ResponseJSON><Body><Datalist><Authentication>true</Authentication></Datalist></Body></ResponseJSON></soapenv:Body></soapenv:Envelope>
[2014-09-25 09:52:32,148] INFO - LogMediator FORCE_ERROR_ON_SOAP_FAULT = true, partybranchid1 = -2500000000796243010946586, latitude = 18.975, longitude = 72.8258, radius = 10
[2014-09-25 09:52:32,344] INFO - LogMediator To: http://www.w3.org/2005/08/addressing/anonymous, WSAction: , SOAPAction: , MessageID: urn:uuid:c635aa03-36ac-4af7-8b01-9bb31b35f4ef, Direction: response, Datalist values logged = <Datalist xmlns="http://ws.wso2.org/dataservice"><addressid>457492199890748451</addressid><geocode>POINT(18.975 72.8258)</geocode></Datalist>, Envelope: <?xml version='1.0' encoding='utf-8'?><soapenv:Envelope xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/"><soapenv:Body><DataCollection xmlns="http://ws.wso2.org/dataservice"><Datalist><addressid>457492199890748451</addressid><geocode>POINT(18.975 72.8258)</geocode></Datalist></DataCollection></soapenv:Body></soapenv:Envelope>
[2014-09-25 09:52:32,345] INFO - LogMediator To: http://www.w3.org/2005/08/addressing/anonymous, WSAction: , SOAPAction: , MessageID: urn:uuid:e77556c0-b722-4f91-879b-1cbb4ae20aec, Direction: response, Datalist values logged = <Datalist xmlns="http://ws.wso2.org/dataservice"><addressid>456211760366486560</addressid><geocode>POINT(19.0769048 72.8570555)</geocode></Datalist><Datalist xmlns="http://ws.wso2.org/dataservice"><addressid>456217678470710306</addressid><geocode>POINT(18.975 72.8258)</geocode></Datalist>, Envelope: <?xml version='1.0' encoding='utf-8'?><soapenv:Envelope xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/"><soapenv:Body><DataCollection xmlns="http://ws.wso2.org/dataservice"><Datalist><addressid>456211760366486560</addressid><geocode>POINT(19.0769048 72.8570555)</geocode></Datalist><Datalist><addressid>456217678470710306</addressid><geocode>POINT(18.975 72.8258)</geocode></Datalist></DataCollection></soapenv:Body></soapenv:Envelope>
在客户端输出
{"ResponseJSON":{"Body":{"Datalist":{"addressid":"457492199890748451","geocode":"POINT(18.975 72.8258)"}},"Status":"200","Total":"1.0"}}
请求是：
curl -v -H "Accept: application/json" -H "Content-Type:application/json" -H "ModifiedOn:0" -H "username:vikash|214057357158656" -H "password:gbadmin" -d '{"usercode":"suresh","clientid":"473906852857651","longitude":"72.8258","radius":"10","latitude":"18.975"}' http://youtility-desktop:8282/services/spatial_proxy_test
服务器端日志显示它正在迭代正常，但在客户端只给出一次迭代的响应。为什么呢？是他们对序列选项的任何更改，如ContinueParent或preservepayload等。？请告诉我..
答案 0 :(得分：0)
我昨晚测试你的场景，我的代理看起来像这样：
<?xml version="1.0" encoding="UTF-8"?>
<proxy xmlns="http://ws.apache.org/ns/synapse"
name="AddressProxy"
transports="https http"
startOnLoad="true"
trace="disable">
<description/>
<target>
<inSequence>
<property xmlns:p="http://www.example.org/Address/"
name="clientid"
expression="//p:getAddress/clientid"
scope="default"
type="STRING"/>
<sequence key="conf:/sequencesStackOverFlow/getmpartybranch"/>
</inSequence>
<outSequence>
<aggregate>
<completeCondition>
<messageCount min="-1" max="2"/>
</completeCondition>
<onComplete xmlns:add="http://ws.wso2.org/dataservice"
expression="//add:Addresses/add:Address">
<send/>
</onComplete>
</aggregate>
</outSequence>
</target>
<publishWSDL key="conf:/wsdls/Address.wsdl"/>
</proxy>
在序列中使用的序列：
conf：/ sequencesStackOverFlow / getmpartybranch
<sequence xmlns="http://ws.apache.org/ns/synapse">
<payloadFactory media-type="xml">
<format>
<dat:getmpartybranch xmlns:dat="http://ws.wso2.org/dataservice">
<dat:clientid>$1</dat:clientid>
</dat:getmpartybranch>
</format>
<args>
<arg xmlns:ns="http://org.apache.synapse/xsd" expression="get-property('clientid')" evaluator="xml"></arg>
</args>
</payloadFactory>
<send receive="conf:/sequencesStackOverFlow/iterOvermpartybranch">
<endpoint>
<address uri="http://127.0.0.1:5555/services/mpartybranch"></address>
</endpoint>
</send>
</sequence>
conf：/ sequencesStackOverFlow / iterOvermpartybranch
<sequence xmlns="http://ws.apache.org/ns/synapse">
<iterate xmlns:ns="http://org.apache.synapse/xsd" xmlns:ds="http://ws.wso2.org/dataservice" expression="//ds:DataCollection/ds:Datalist" id="iterate1" sequential="true">
<target>
<sequence>
<property name="partybranchid" expression="//ds:partybranchid/text()" scope="default" type="STRING"></property>
<property name="clientid" expression="//ds:clientid/text()" scope="default" type="STRING"></property>
<log>
<property name="PARTYID" expression="get-property('partybranchid')"></property>
<property name="CLIENTID" expression="get-property('clientid')"></property>
</log>
<payloadFactory media-type="xml">
<format>
<dat:getselect_addresses xmlns:dat="http://ws.wso2.org/dataservice">
<dat:objectid>$1</dat:objectid>
<dat:clientid>$2</dat:clientid>
</dat:getselect_addresses>
</format>
<args>
<arg expression="get-property('partybranchid')" evaluator="xml"></arg>
<arg expression="get-property('clientid')" evaluator="xml"></arg>
</args>
</payloadFactory>
<log level="full"></log>
<send>
<endpoint>
<address uri="http://127.0.0.1:5555/services/getAddress" format="soap12"></address>
</endpoint>
</send>
</sequence>
</target>
</iterate>
</sequence>
您需要使用聚合调解器来收集响应并创建一条唯一消息以返回到客户端。检查我的后果。在我的情况下，我只需要使用变换器中介来根据WSDL更改我的有效负载。