Question

尝试通过TCP发布JSON请求。 WSO2 ESB已配置如下以使用TCP传输（在axis2.xml中）。

<transportReceiver class="org.apache.axis2.transport.tcp.TCPTransportListener" name="tcp"></transportReceiver>

添加了代理服务，如下所示：

<?xml version="1.0" encoding="UTF-8"?>
<proxy name="TcpToHttpProxy" startOnLoad="true" transports="tcp" xmlns="http://ws.apache.org/ns/synapse">
<target>
    <endpoint name="endpoint_urn_uuid_71d9f268-1f33-48f2-bd89-439ac88095d1">
        <address uri="http://localhost:82/api/v1/reservations"/>
    </endpoint>
    <inSequence>
        <log level="full"/>
    </inSequence>
    <outSequence>
        <send/>
    </outSequence>
    <faultSequence/>
</target>
<parameter name="transport.tcp.contentType">application/json</parameter>
<parameter name="transport.tcp.port">6060</parameter>
</proxy>

但是，在发布请求时收到以下错误：

[2017-01-16 17:48:52,094]  INFO - LogMediator To: , WSAction: urn:mediate, SOAPAction: urn:mediate, MessageID: urn:uuid:25D317F2A1C891B19D1484569132104, Direction: request, Payload: 
{"patient": {
"name": "John Doe",
"dob": "1940-03-19",
"ssn": "234-23-525",
"address": "California",
"phone": "8770586755",
"email": "johndoe@gmail.com"},
  "doctor": "thomas collins",
  "hospital": "abc"}
[2017-01-16 17:48:52,099] ERROR - JsonUtil #writeJsonStream. Could not write JSON stream. MessageID: urn:uuid:0109653d-e79c-4143-98b9-0053b565bb19. Error>> Stream closed.
[2017-01-16 17:48:52,099]  INFO - AxisEngine [MessageContext: logID=5cdd488a83f3b09fc0c3e3f949982e3d155cbcf0d761edcd] Could not write JSON stream.
[2017-01-16 17:48:52,100] ERROR - AsyncCallback Could not write JSON stream.
org.apache.axis2.AxisFault: Could not write JSON stream.
at org.apache.synapse.commons.json.JsonUtil.writeAsJson(JsonUtil.java:249)
at org.apache.synapse.commons.json.JsonStreamFormatter.writeTo(JsonStreamFormatter.java:61)
at org.apache.synapse.transport.passthru.PassThroughHttpSender.sendRequestContent(PassThroughHttpSender.java:389)
at org.apache.synapse.transport.passthru.PassThroughHttpSender.invoke(PassThroughHttpSender.java:256)
at org.apache.axis2.engine.AxisEngine$TransportNonBlockingInvocationWorker.run(AxisEngine.java:626)
at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)
Caused by: org.apache.axis2.AxisFault: Could not write JSON stream.
at org.apache.synapse.commons.json.JsonUtil.writeJsonStream(JsonUtil.java:833)
at org.apache.synapse.commons.json.JsonUtil.writeAsJson(JsonUtil.java:237)
... 7 more
Caused by: java.io.IOException: Stream closed.
at java.net.AbstractPlainSocketImpl.available(Unknown Source)
at java.net.SocketInputStream.available(Unknown Source)
at java.io.BufferedInputStream.read(Unknown Source)
at java.io.FilterInputStream.read(Unknown Source)
at org.apache.commons.io.IOUtils.copyLarge(IOUtils.java:1792)
at org.apache.commons.io.IOUtils.copyLarge(IOUtils.java:1769)
at org.apache.commons.io.IOUtils.copy(IOUtils.java:1744)
at org.apache.synapse.commons.json.JsonUtil.writeJsonStream(JsonUtil.java:823)
... 8 more
[2017-01-16 17:48:52,101]  WARN - AsyncCallback Executing fault handler due to exception encountered
[2017-01-16 17:48:52,101]  WARN - EndpointContext Endpoint : endpoint_urn_uuid_71d9f268-1f33-48f2-bd89-439ac88095d1 with address http://localhost:82/api/v1/reservations will be marked SUSPENDED as it failed
[2017-01-16 17:48:52,102]  WARN - EndpointContext Suspending endpoint : endpoint_urn_uuid_71d9f268-1f33-48f2-bd89-439ac88095d1 with address http://localhost:82/api/v1/reservations - current suspend duration is : 30000ms - Next retry after : Mon Jan 16 17:49:22 IST 2017

看起来JSON请求被传递给ESB，因为它正确记录了JSON对象。但是，它不会将JSON请求传递给后端服务（Web API）。

有人可以建议我解决这个问题吗？

通过TCP发布JSON请求时出现WSO2ESB错误

0 个答案: