在WSO2 API Manager 1.10中设置中介后，我发现了零点异常和缺少凭据错误 . 我该怎么办？-Java 学习之路

我正在使用WSO2 APIManager 1.10 . 我想用这样的调解来调用api请求 .

<sequence name="loadbalancer_bycompany" trace="disable" xmlns="http://ws.apache.org/ns/synapse">
  <property expression="get-property('transport', 'company')"
    name="company" scope="default" type="STRING"/>
  <property name="POST_TO_URI" scope="axis2" type="STRING" value="true"/>
  <switch source="$trp:company">
    <case regex="sds">
      <send>
        <endpoint>
          <address trace="disable" uri="https://70.30.182.167:8243/calc/1.0/"/>
        </endpoint>
      </send>
    </case>
    <case regex="etc">
      <send>
        <endpoint>
          <address trace="disable" uri="https://70.30.182.167:9443/calc/1.0/"/>
        </endpoint>
      </send>
    </case>
    <default>
      <send>
        <endpoint>
          <address trace="disable" uri="https://70.30.182.167:9443/carbon/"/>
        </endpoint>
      </send>
    </default>
  </switch>
</sequence>

所以，我试着设置调解员，然后我打电话给api . 但是，我有时得到错误响应，即代码900902缺少凭据，有时得到正确的响应 .

那时，我发现了这样的日志 .

TID: [-1234] [] [2017-02-03 10:45:10,728]  INFO {org.apache.synapse.mediators.builtin.LogMediator} -  STATUS = Executing default 'fault' sequence, ERROR_CODE = 0, ERROR_MESSAGE = Access-Control-Allow-Headers:authorization,Access-Control-Allow-Origin,Content-Type,company,Access-Control-Allow-Methods:GET,Access-Control-Allow-Origin:*,<?xml version='1.0' encoding='utf-8'?><soapenv:Envelope xmlns:soapenv="http://www.w3.org/2003/05/soap-envelope"><soapenv:Body/></soapenv:Envelope> Unexpected error sending message back {org.apache.synapse.mediators.builtin.LogMediator}
TID: [-1234] [] [2017-02-03 10:45:10,735] ERROR {org.apache.synapse.transport.passthru.PassThroughHttpSSLSender} -  Failed to submit the response {org.apache.synapse.transport.passthru.PassThroughHttpSSLSender}
java.lang.NullPointerException
    at org.apache.synapse.transport.passthru.util.SourceResponseFactory.create(SourceResponseFactory.java:64)
    at org.apache.synapse.transport.passthru.PassThroughHttpSender.submitResponse(PassThroughHttpSender.java:462)
    at org.apache.synapse.transport.passthru.PassThroughHttpSender.invoke(PassThroughHttpSender.java:267)
    at org.apache.axis2.engine.AxisEngine.send(AxisEngine.java:442)
    at org.apache.synapse.core.axis2.Axis2Sender.sendBack(Axis2Sender.java:212)
    at org.apache.synapse.core.axis2.Axis2SynapseEnvironment.send(Axis2SynapseEnvironment.java:493)
    at org.apache.synapse.mediators.builtin.SendMediator.mediate(SendMediator.java:108)
    at org.apache.synapse.mediators.AbstractListMediator.mediate(AbstractListMediator.java:81)
    at org.apache.synapse.mediators.AbstractListMediator.mediate(AbstractListMediator.java:48)
    at org.apache.synapse.mediators.base.SequenceMediator.mediate(SequenceMediator.java:155)
    at org.apache.synapse.mediators.MediatorFaultHandler.onFault(MediatorFaultHandler.java:86)
    at org.apache.synapse.FaultHandler.handleFault(FaultHandler.java:102)
    at org.apache.synapse.FaultHandler.handleFault(FaultHandler.java:108)
    at org.apache.synapse.core.axis2.SynapseCallbackReceiver.handleMessage(SynapseCallbackReceiver.java:534)
    at org.apache.synapse.core.axis2.SynapseCallbackReceiver.receive(SynapseCallbackReceiver.java:172)
    at org.apache.axis2.engine.AxisEngine.receive(AxisEngine.java:180)
    at org.apache.synapse.transport.passthru.ClientWorker.run(ClientWorker.java:251)
    at org.apache.axis2.transport.base.threads.NativeWorkerPool$1.run(NativeWorkerPool.java:172)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
    at java.lang.Thread.run(Thread.java:745)
TID: [-1234] [] [2017-02-03 10:45:10,738] ERROR {org.apache.synapse.core.axis2.Axis2Sender} -  Access-Control-Allow-Headers:authorization,Access-Control-Allow-Origin,Content-Type,company,Access-Control-Allow-Methods:GET,Access-Control-Allow-Origin:*,<?xml version='1.0' encoding='utf-8'?><soapenv:Envelope xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/"><soapenv:Body><am:fault xmlns:am="http://wso2.org/apimanager"><am:code>0</am:code><am:type>Status report</am:type><am:message>Runtime Error</am:message><am:description>Access-Control-Allow-Headers:authorization,Access-Control-Allow-Origin,Content-Type,company,Access-Control-Allow-Methods:GET,Access-Control-Allow-Origin:*,&lt;?xml version='1.0' encoding='utf-8'?>&lt;soapenv:Envelope xmlns:soapenv="http://www.w3.org/2003/05/soap-envelope">&lt;soapenv:Body/>&lt;/soapenv:Envelope> Unexpected error sending message back</am:description></am:fault></soapenv:Body></soapenv:Envelope> Unexpected error sending message back {org.apache.synapse.core.axis2.Axis2Sender}
org.apache.axis2.AxisFault: Failed to submit the response
    at org.apache.synapse.transport.passthru.PassThroughHttpSender.handleException(PassThroughHttpSender.java:610)
    at org.apache.synapse.transport.passthru.PassThroughHttpSender.invoke(PassThroughHttpSender.java:269)
    at org.apache.axis2.engine.AxisEngine.send(AxisEngine.java:442)
    at org.apache.synapse.core.axis2.Axis2Sender.sendBack(Axis2Sender.java:212)
    at org.apache.synapse.core.axis2.Axis2SynapseEnvironment.send(Axis2SynapseEnvironment.java:493)
    at org.apache.synapse.mediators.builtin.SendMediator.mediate(SendMediator.java:108)
    at org.apache.synapse.mediators.AbstractListMediator.mediate(AbstractListMediator.java:81)
    at org.apache.synapse.mediators.AbstractListMediator.mediate(AbstractListMediator.java:48)
    at org.apache.synapse.mediators.base.SequenceMediator.mediate(SequenceMediator.java:155)
    at org.apache.synapse.mediators.MediatorFaultHandler.onFault(MediatorFaultHandler.java:86)
    at org.apache.synapse.FaultHandler.handleFault(FaultHandler.java:102)
    at org.apache.synapse.FaultHandler.handleFault(FaultHandler.java:108)
    at org.apache.synapse.core.axis2.SynapseCallbackReceiver.handleMessage(SynapseCallbackReceiver.java:534)
    at org.apache.synapse.core.axis2.SynapseCallbackReceiver.receive(SynapseCallbackReceiver.java:172)
    at org.apache.axis2.engine.AxisEngine.receive(AxisEngine.java:180)
    at org.apache.synapse.transport.passthru.ClientWorker.run(ClientWorker.java:251)
    at org.apache.axis2.transport.base.threads.NativeWorkerPool$1.run(NativeWorkerPool.java:172)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
    at java.lang.Thread.run(Thread.java:745)
Caused by: java.lang.NullPointerException
    at org.apache.synapse.transport.passthru.util.SourceResponseFactory.create(SourceResponseFactory.java:64)
    at org.apache.synapse.transport.passthru.PassThroughHttpSender.submitResponse(PassThroughHttpSender.java:462)
    at org.apache.synapse.transport.passthru.PassThroughHttpSender.invoke(PassThroughHttpSender.java:267)
    ... 18 more
TID: [-1234] [] [2017-02-03 10:45:10,740] ERROR {org.apache.axis2.transport.base.threads.NativeWorkerPool} -  Uncaught exception {org.apache.axis2.transport.base.threads.NativeWorkerPool}
java.lang.RuntimeException: org.apache.synapse.SynapseException: Access-Control-Allow-Headers:authorization,Access-Control-Allow-Origin,Content-Type,company,Access-Control-Allow-Methods:GET,Access-Control-Allow-Origin:*,<?xml version='1.0' encoding='utf-8'?><soapenv:Envelope xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/"><soapenv:Body><am:fault xmlns:am="http://wso2.org/apimanager"><am:code>0</am:code><am:type>Status report</am:type><am:message>Runtime Error</am:message><am:description>Access-Control-Allow-Headers:authorization,Access-Control-Allow-Origin,Content-Type,company,Access-Control-Allow-Methods:GET,Access-Control-Allow-Origin:*,&lt;?xml version='1.0' encoding='utf-8'?>&lt;soapenv:Envelope xmlns:soapenv="http://www.w3.org/2003/05/soap-envelope">&lt;soapenv:Body/>&lt;/soapenv:Envelope> Unexpected error sending message back</am:description></am:fault></soapenv:Body></soapenv:Envelope> Unexpected error sending message back
    at org.apache.synapse.FaultHandler.handleFault(FaultHandler.java:110)
    at org.apache.synapse.FaultHandler.handleFault(FaultHandler.java:108)
    at org.apache.synapse.core.axis2.SynapseCallbackReceiver.handleMessage(SynapseCallbackReceiver.java:534)
    at org.apache.synapse.core.axis2.SynapseCallbackReceiver.receive(SynapseCallbackReceiver.java:172)
    at org.apache.axis2.engine.AxisEngine.receive(AxisEngine.java:180)
    at org.apache.synapse.transport.passthru.ClientWorker.run(ClientWorker.java:251)
    at org.apache.axis2.transport.base.threads.NativeWorkerPool$1.run(NativeWorkerPool.java:172)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
    at java.lang.Thread.run(Thread.java:745)
Caused by: org.apache.synapse.SynapseException: Access-Control-Allow-Headers:authorization,Access-Control-Allow-Origin,Content-Type,company,Access-Control-Allow-Methods:GET,Access-Control-Allow-Origin:*,<?xml version='1.0' encoding='utf-8'?><soapenv:Envelope xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/"><soapenv:Body><am:fault xmlns:am="http://wso2.org/apimanager"><am:code>0</am:code><am:type>Status report</am:type><am:message>Runtime Error</am:message><am:description>Access-Control-Allow-Headers:authorization,Access-Control-Allow-Origin,Content-Type,company,Access-Control-Allow-Methods:GET,Access-Control-Allow-Origin:*,&lt;?xml version='1.0' encoding='utf-8'?>&lt;soapenv:Envelope xmlns:soapenv="http://www.w3.org/2003/05/soap-envelope">&lt;soapenv:Body/>&lt;/soapenv:Envelope> Unexpected error sending message back</am:description></am:fault></soapenv:Body></soapenv:Envelope> Unexpected error sending message back
    at org.apache.synapse.core.axis2.Axis2Sender.handleException(Axis2Sender.java:247)
    at org.apache.synapse.core.axis2.Axis2Sender.sendBack(Axis2Sender.java:215)
    at org.apache.synapse.core.axis2.Axis2SynapseEnvironment.send(Axis2SynapseEnvironment.java:493)
    at org.apache.synapse.mediators.builtin.SendMediator.mediate(SendMediator.java:108)
    at org.apache.synapse.mediators.AbstractListMediator.mediate(AbstractListMediator.java:81)
    at org.apache.synapse.mediators.AbstractListMediator.mediate(AbstractListMediator.java:48)
    at org.apache.synapse.mediators.base.SequenceMediator.mediate(SequenceMediator.java:155)
    at org.apache.synapse.mediators.MediatorFaultHandler.onFault(MediatorFaultHandler.java:86)
    at org.apache.synapse.FaultHandler.handleFault(FaultHandler.java:102)
    ... 9 more
Caused by: org.apache.axis2.AxisFault: Failed to submit the response
    at org.apache.synapse.transport.passthru.PassThroughHttpSender.handleException(PassThroughHttpSender.java:610)
    at org.apache.synapse.transport.passthru.PassThroughHttpSender.invoke(PassThroughHttpSender.java:269)
    at org.apache.axis2.engine.AxisEngine.send(AxisEngine.java:442)
    at org.apache.synapse.core.axis2.Axis2Sender.sendBack(Axis2Sender.java:212)
    ... 16 more
Caused by: java.lang.NullPointerException
    at org.apache.synapse.transport.passthru.util.SourceResponseFactory.create(SourceResponseFactory.java:64)
    at org.apache.synapse.transport.passthru.PassThroughHttpSender.submitResponse(PassThroughHttpSender.java:462)
    at org.apache.synapse.transport.passthru.PassThroughHttpSender.invoke(PassThroughHttpSender.java:267)
    ... 18 more
TID: [-1234] [] [2017-02-03 10:45:59,370]  INFO {org.wso2.carbon.apimgt.usage.publisher.APIMgtUsageHandler} -  Stat is not enabled {org.wso2.carbon.apimgt.usage.publisher.APIMgtUsageHandler}
TID: [-1234] [] [2017-02-03 10:45:59,374]  INFO {org.apache.synapse.mediators.builtin.LogMediator} -  To: /calc/1.0/subtract?x=3&y=1, MessageID: urn:uuid:8f4000dc-b878-4d5f-b310-f0129f2db0a3, Direction: request, INFO = https://70.30.182.167:8243/calc/1.0/, Envelope: <?xml version='1.0' encoding='utf-8'?><soapenv:Envelope xmlns:soapenv="http://www.w3.org/2003/05/soap-envelope"><soapenv:Body/></soapenv:Envelope> {org.apache.synapse.mediators.builtin.LogMediator}
TID: [-1234] [] [2017-02-03 10:45:59,390]  INFO {org.wso2.carbon.apimgt.usage.publisher.APIMgtResponseHandler} -  Stat is not enabled {org.wso2.carbon.apimgt.usage.publisher.APIMgtResponseHandler}
TID: [-1234] [] [2017-02-03 10:45:59,395]  WARN {org.wso2.carbon.apimgt.gateway.handlers.security.APIAuthenticationHandler} -  API authentication failure due to Missing Credentials {org.wso2.carbon.apimgt.gateway.handlers.security.APIAuthenticationHandler}

我反复发现这个日志，所以我努力修复它 . 首先，要删除此错误，NullPointerException SourceResponseFactory.create（SourceResponseFactory.java:64）

我发现PassThroughHttpSender.java中的代码问题没有处理sourceRequest的null case . 然后我发现问题是固定的wso2-synapse ESBJAVA-3770基于消息大小的过滤来防止OOM . （＃679）

https://github.com/wso2/wso2-synapse/commit/1aff92c4bad968f78cf38577cbb7c01516475217

所以，我将代码添加到我们的代码中 . 然后NullPointException就消失了 .

然后我尝试删除丢失的凭据错误 . 所以我找到了这个链接 . Authorization Bearer in URL Request using WSO2 API Manager

我试着设置如下链接 .

https://docs.wso2.com/display/AM1100/Writing+Custom+Handlers

然后删除了丢失凭据错误 . 然后结果是正确的反应 . 但是我无限地发现了下面的日志

TID: [-1234] [] [2017-02-08 13:20:12,563]  WARN {org.wso2.carbon.apimgt.gateway.handlers.throttling.APIThrottleHandler} -  No authentication context information found on the request - Throttling not applied {org.wso2.carbon.apimgt.gateway.handlers.throttling.APIThrottleHandler}

我试图调试SourceHandler和TargetHandler . 我认为连接是无限创造的，并没有全部关闭 .

我不知道该怎么办了 . 所以，请让我知道我必须做什么 .

1 回答

0

请仔细阅读docs中提供的示例implementation . 基于APIThrottleHandler实现，如果您未在自定义Auth处理程序中设置用户上下文，则会显示此警告消息 . 请检查默认"OAuthAuthenticator"的编写方式以及AuthenticationContext的初始化方式 . 如果需要使用限制，则需要对自定义处理程序执行类似的实现 .

回复于 2024-05-08T09:53:49+08:00

在WSO2 API Manager 1.10中设置中介后，我发现了零点异常和缺少凭据错误 . 我该怎么办？

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