PayloadFactory中介我正在使用JSON格式字符串。问题是,当我在/repository/conf/axis2/axis2.xml中启用以下行时,POST请求正常,但GET请求产生错误消息。
<!--messageFormatter contentType="application/json"
class="org.apache.axis2.json.JSONStreamFormatter"/-->
<!--messageBuilder contentType="application/json"
class="org.apache.axis2.json.JSONStreamBuilder"/-->
以下是paypal的ESB模板列出所有付款资源:
<template name="listPaymentResources" xmlns="http://ws.apache.org/ns/synapse">
<sequence class="sequence">
<payloadFactory media-type="json">
<format>
{}
</format>
</payloadFactory>
<property name="messageType" scope="axis2" value="application/json" />
<call>
<endpoint>
<http method="get" uri-template="{uri.var.paypalUrl}/v1/payments/payment"/>
</endpoint>
</call>
</sequence>
</template>
代理服务:
<?xml version="1.0" encoding="UTF-8"?>
<proxy xmlns="http://ws.apache.org/ns/synapse"
name="listPaymentResources"
transports="https,http"
statistics="disable"
trace="disable"
startOnLoad="true">
<target>
<inSequence>
<property xmlns:ns="uri.var.payment"
name="ppurl"
expression="//ns:paypalurl/text()"/>
<PayPal.config>
<appUri>{$ctx:ppurl}</appUri>
</PayPal.config>
<PayPal.listPaymentResources/>
<respond/>
</inSequence>
<outSequence>
<log/>
<send/>
</outSequence>
</target>
<description/>
</proxy>
错误日志:
[2013-12-11 17:25:10,971] ERROR - TargetHandler Unexpected error: Cannot get a J
SON writer
java.lang.UnsupportedOperationException: Cannot get a JSON writer
at org.apache.axis2.json.JSONStreamFormatter.getJSONWriter(JSONStreamFor
matter.java:63)
at org.apache.axis2.json.AbstractJSONMessageFormatter.getTargetAddress(A
bstractJSONMessageFormatter.java:228)
at org.apache.synapse.transport.passthru.TargetRequest.start(TargetReque
st.java:152)
at org.apache.synapse.transport.passthru.TargetHandler.requestReady(Targ
etHandler.java:136)
at org.apache.http.impl.nio.DefaultNHttpClientConnection.produceOutput(D
efaultNHttpClientConnection.java:244)
at org.apache.synapse.transport.http.conn.LoggingNHttpClientConnection.p
roduceOutput(LoggingNHttpClientConnection.java:112)
at org.apache.synapse.transport.passthru.ClientIODispatch.onOutputReady(
ClientIODispatch.java:88)
at org.apache.synapse.transport.passthru.ClientIODispatch.onOutputReady(
ClientIODispatch.java:41)
at org.apache.http.impl.nio.reactor.AbstractIODispatch.outputReady(Abstr
actIODispatch.java:148)
答案 0 :(得分:0)
我已经在WSO2 ESB的最新版本上对该主题进行了一些测试,我无法重现这个问题。