对代理服务 WSO2 的 POST 请求

Question

我正在向代理服务发送一个发布请求，但它给出了错误......我该如何解决这个问题

[2012-06-15 12:24:27,656]  INFO - BuilderUtil OMException in getSOAPBuilder
org.apache.axiom.om.OMException: com.ctc.wstx.exc.WstxEOFException: Unexpected EOF in prolog
 at [row,col {unknown-source}]: [1,0]
    at org.apache.axiom.om.impl.builder.StAXOMBuilder.next(StAXOMBuilder.java:296)
    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:688)
    at org.apache.axis2.transport.TransportUtils.createDocumentElement(TransportUtils.java:197)
    at org.apache.axis2.transport.TransportUtils.createSOAPMessage(TransportUtils.java:145)
    at org.apache.axis2.transport.http.HTTPTransportUtils.processHTTPPostRequest(HTTPTransportUtils.java:167)
    at org.apache.synapse.transport.nhttp.ServerWorker.processEntityEnclosingMethod(ServerWorker.java:409)
    at org.apache.synapse.transport.nhttp.ServerWorker.run(ServerWorker.java:261)
    at org.apache.axis2.transport.base.threads.NativeWorkerPool$1.run(NativeWorkerPool.java:173)
    at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
    at java.lang.Thread.run(Thread.java:662)
Caused by: com.ctc.wstx.exc.WstxEOFException: Unexpected EOF in prolog
 at [row,col {unknown-source}]: [1,0]
    at com.ctc.wstx.sr.StreamScanner.throwUnexpectedEOF(StreamScanner.java:686)
    at com.ctc.wstx.sr.BasicStreamReader.handleEOF(BasicStreamReader.java:2134)
    at com.ctc.wstx.sr.BasicStreamReader.nextFromProlog(BasicStreamReader.java:2040)
    at com.ctc.wstx.sr.BasicStreamReader.next(BasicStreamReader.java:1069)
    at org.apache.axiom.util.stax.wrapper.XMLStreamReaderWrapper.next(XMLStreamReaderWrapper.java:225)
    at org.apache.axiom.om.impl.builder.StAXOMBuilder.parserNext(StAXOMBuilder.java:681)
    at org.apache.axiom.om.impl.builder.StAXOMBuilder.next(StAXOMBuilder.java:214)
    ... 13 more
[2012-06-15 12:24:27,675]  INFO - BuilderUtil Remaining input stream :[]
[2012-06-15 12:24:27,675] ERROR - ServerWorker Error processing POST request 
org.apache.axis2.AxisFault: com.ctc.wstx.exc.WstxEOFException: Unexpected EOF in prolog
 at [row,col {unknown-source}]: [1,0]
    at org.apache.axis2.AxisFault.makeFault(AxisFault.java:430)
    at org.apache.axis2.transport.http.HTTPTransportUtils.processHTTPPostRequest(HTTPTransportUtils.java:180)
    at org.apache.synapse.transport.nhttp.ServerWorker.processEntityEnclosingMethod(ServerWorker.java:409)
    at org.apache.synapse.transport.nhttp.ServerWorker.run(ServerWorker.java:261)
    at org.apache.axis2.transport.base.threads.NativeWorkerPool$1.run(NativeWorkerPool.java:173)
    at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
    at java.lang.Thread.run(Thread.java:662)
Caused by: org.apache.axiom.om.OMException: com.ctc.wstx.exc.WstxEOFException: Unexpected EOF in prolog
 at [row,col {unknown-source}]: [1,0]
    at org.apache.axiom.om.impl.builder.StAXOMBuilder.next(StAXOMBuilder.java:296)
    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:688)
    at org.apache.axis2.transport.TransportUtils.createDocumentElement(TransportUtils.java:197)
    at org.apache.axis2.transport.TransportUtils.createSOAPMessage(TransportUtils.java:145)
    at org.apache.axis2.transport.http.HTTPTransportUtils.processHTTPPostRequest(HTTPTransportUtils.java:167)
    ... 6 more
Caused by: com.ctc.wstx.exc.WstxEOFException: Unexpected EOF in prolog
 at [row,col {unknown-source}]: [1,0]
    at com.ctc.wstx.sr.StreamScanner.throwUnexpectedEOF(StreamScanner.java:686)
    at com.ctc.wstx.sr.BasicStreamReader.handleEOF(BasicStreamReader.java:2134)
    at com.ctc.wstx.sr.BasicStreamReader.nextFromProlog(BasicStreamReader.java:2040)
    at com.ctc.wstx.sr.BasicStreamReader.next(BasicStreamReader.java:1069)
    at org.apache.axiom.util.stax.wrapper.XMLStreamReaderWrapper.next(XMLStreamReaderWrapper.java:225)
    at org.apache.axiom.om.impl.builder.StAXOMBuilder.parserNext(StAXOMBuilder.java:681)
    at org.apache.axiom.om.impl.builder.StAXOMBuilder.next(StAXOMBuilder.java:214)
    ... 13 more

我的代理形象是：

<proxy name="stripe" transports="https http" startOnLoad="true" trace="disable">
        <target>
            <endpoint>
                <address uri="https://api.stripe.com/v1"/>
            </endpoint>
            <inSequence>
                <log level="full" separator="SSSSSSSSSSSSSSSSSs">
                    <property name="HTTP_METHOD" value="post"/>
                </log>
                <send/>
            </inSequence>
            <outSequence>
                <log level="full" separator=", ooooooooooo"/>
                <send/>
            </outSequence>
        </target>
    </proxy>

执行请求的curl命令：

curl https://localhost:8243/services/stripe/charges/ch_iQs4noWTm7J5Kk/refund  -u Ixj3FHIiQSFWrzb4VNSxoThKVk3IXpBF --insecure -X POST

我没有得到 dis 错误的确切原因

Answer 1

POST 请求的内容类型是什么。当您没有所用内容类型的消息格式化程序和构建器时，会发生此错误。

Answer 2

我在这个错误上花了 7 天时间。这个错误有很多不同的答案。

当您的网络服务返回 wso 代理空正文或不正确的内容长度或其他（有很多事情）时，就会发生这种情况。

但在我的情况下，问题是如果内容长度等于 0，我的路由“/”（POST 方法）上的网络服务会返回 400 代码。我认为 wso2 代理首先会向我的网络服务发送一些内容为零的数据-长度标头或没有此标头，我的网络服务只是“阻止”它并返回 400 代码。