无法从 http 端点消费 [英] Cannot consume from http endpoint

问题描述

下面给出了我的路由，我正在尝试使用 HTTP 组件交换数据，URI 包含提交数据并获得响应应该获取数据但它不起作用

My route is given below i am trying to exchange data using HTTP component , the URI contains submit data and get in response should get an data but its not working

  <route>
    <from uri="http://gatest.dnb.com/daasaccess/scripts/broker.asp?request=%3C%3Fxml+version%3D%271.0%27+encoding%3D%27UTF-8%27%3F%3E%3CDGX%3E%3CSIGNONMSGSRQV1%3E%3CSONRQ%3E%3CDTCLIENT%3E2007-05-04%3C%2FDTCLIENT%3E%3CUSERID%3Esalesautomation%3C%2FUSERID%3E%3CUSERPASS%3ESFAAdmin%3C%2FUSERPASS%3E%3CLANGUAGE%3EEN%3C%2FLANGUAGE%3E%3CFI%3E%3CORG%3EDandB%3C%2FORG%3E%3C%2FFI%3E%3CAPPID%3EXML%3C%2FAPPID%3E%3CAPPVER%3E0010%3C%2FAPPVER%3E%3C%2FSONRQ%3E%3C%2FSIGNONMSGSRQV1%3E%3CCREDITMSGSRQV2%3E%3CDATATRNRQ%3E%3CTRNUID%3E2D995FE0173B2C%3C%2FTRNUID%3E%3CDATARQ%3E%3CSRVRTID%3E%3C%2FSRVRTID%3E%3CSVC_TYPE_CD%3E%3C%2FSVC_TYPE_CD%3E%3CREAS_CD%3E%3C%2FREAS_CD%3E%3CCUST_ENDR%3E%3C%2FCUST_ENDR%3E%3CCUST_RQ%3E%3C%2FCUST_RQ%3E%3CREFRESH_IND%3E%3C%2FREFRESH_IND%3E%3CIGNORE_REQD_FLDS_IND%3E%3C%2FIGNORE_REQD_FLDS_IND%3E%3CSUBJ_DET%3E%3CDUNS_NBR%3E829654420%3C%2FDUNS_NBR%3E%3CCTRY_CD%3E%3C%2FCTRY_CD%3E%3CTRD_UP_IND%3E%3C%2FTRD_UP_IND%3E%3CPRIM_NME%3E%3C%2FPRIM_NME%3E%3CBUS_REGN_NBR%3E%3C%2FBUS_REGN_NBR%3E%3CBUS_REGN_NBR_TYPE_CD%3E%3C%2FBUS_REGN_NBR_TYPE_CD%3E%3CADR_LINE%3E%3C%2FADR_LINE%3E%3CPOST_TOWN%3E%3C%2FPOST_TOWN%3E%3CPRIM_GEO_AREA%3E%3C%2FPRIM_GEO_AREA%3E%3CPOST_CODE%3E%3C%2FPOST_CODE%3E%3CTLCM_NBR%3E%3C%2FTLCM_NBR%3E%3C%2FSUBJ_DET%3E%3CPROD%3EEnterprise+Management%3C%2FPROD%3E%3CPROD_TYPE_CD%3ED%3C%2FPROD_TYPE_CD%3E%3CDELV_REQS_NOW%3E%3CDELV_MODE_CD%3EDIRECT%3C%2FDELV_MODE_CD%3E%3CDELV_FMT_CD%3EXML%3C%2FDELV_FMT_CD%3E%3CLANG%3EEN%3C%2FLANG%3E%3CDELV_EMAIL%3E%3C%2FDELV_EMAIL%3E%3CDELV_EMAIL_CC%3E%3C%2FDELV_EMAIL_CC%3E%3C%2FDELV_REQS_NOW%3E%3CDELV_REQS_INV%3E%3CDELV_MODE_CD%3E%3C%2FDELV_MODE_CD%3E%3CDELV_FMT_CD%3E%3C%2FDELV_FMT_CD%3E%3CLANG%3E%3C%2FLANG%3E%3CDELV_EMAIL%3E%3C%2FDELV_EMAIL%3E%3CDELV_EMAIL_CC%3E%3C%2FDELV_EMAIL_CC%3E%3C%2FDELV_REQS_INV%3E%3CDELV_REQS_NTFY%3E%3CDELV_MODE_CD%3E%3C%2FDELV_MODE_CD%3E%3CDELV_FMT_CD%3E%3C%2FDELV_FMT_CD%3E%3CLANG%3E%3C%2FLANG%3E%3CDELV_EMAIL%3E%3C%2FDELV_EMAIL%3E%3CDELV_EMAIL_CC%3E%3C%2FDELV_EMAIL_CC%3E%3C%2FDELV_REQS_NTFY%3E%3C%2FDATARQ%3E%3C%2FDATATRNRQ%3E%3C%2FCREDITMSGSRQV2%3E%3C%2FDGX%3E"/>
    <log message="starting....."/>
    <process ref="nextgenProcessor"/>
    <to uri="file://src/test"/>
    <log message="ending....."/>
  </route>

我收到以下错误:

[ERROR] Error occurred while running main from: org.apache.camel.spring.Main
[ERROR] 
java.lang.reflect.InvocationTargetException
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.apache.camel.maven.RunMojo$1.run(RunMojo.java:488)
    at java.lang.Thread.run(Unknown Source)
Caused by: org.apache.camel.RuntimeCamelException: java.lang.UnsupportedOperationException: Cannot consume from http endpoint

推荐答案

基本上报错信息是正确的，不能使用http 组件 作为消费者.然而，文档有点无用.第一行说http: 组件为消耗外部 HTTP 资源提供基于 HTTP 的端点"，但在下一节中它指出你只能>produce 到 HTTP 组件生成的端点.因此，它不应用作骆驼路由的输入."

Basically the error message is correct, you cannot use the http component as a consumer. However the documentation is kind of unhelpful. The first line says "The http: component provides HTTP based endpoints for consuming external HTTP resources" but then in the next section it states "You can only produce to endpoints generated by the HTTP component. Therefore it should never be used as input into your camel Routes."

一种方法是使用direct"或quartz2"组件作为消费者，然后在生产者中使用http"组件.例如，此路由将每分钟运行一次，提交到指定的 URL 并将响应保存在/tmp 中，文件名带有时间戳:-

One approach would be to use something like the 'direct' or 'quartz2' components as the consumer, then use the 'http' component in a producer. For example, this route will run every minute, submit to the URL specified and save the response in /tmp with a timestamped filename :-

<route id="httpFetch">
    <from uri="quartz2://httpFetch?cron=00+/1+*+?+*+1-5" />
    <to uri="http://gatest.dnb.com/daasaccess/scripts/broker.asp?request=%3C%3Fxml+version%3D%271.0%27+encoding%3D%27UTF-8%27%3F%3E%3CDGX%3E%3CSIGNONMSGSRQV1%3E%3CSONRQ%3E%3CDTCLIENT%3E2007-05-04%3C%2FDTCLIENT%3E%3CUSERID%3Esalesautomation%3C%2FUSERID%3E%3CUSERPASS%3ESFAAdmin%3C%2FUSERPASS%3E%3CLANGUAGE%3EEN%3C%2FLANGUAGE%3E%3CFI%3E%3CORG%3EDandB%3C%2FORG%3E%3C%2FFI%3E%3CAPPID%3EXML%3C%2FAPPID%3E%3CAPPVER%3E0010%3C%2FAPPVER%3E%3C%2FSONRQ%3E%3C%2FSIGNONMSGSRQV1%3E%3CCREDITMSGSRQV2%3E%3CDATATRNRQ%3E%3CTRNUID%3E2D995FE0173B2C%3C%2FTRNUID%3E%3CDATARQ%3E%3CSRVRTID%3E%3C%2FSRVRTID%3E%3CSVC_TYPE_CD%3E%3C%2FSVC_TYPE_CD%3E%3CREAS_CD%3E%3C%2FREAS_CD%3E%3CCUST_ENDR%3E%3C%2FCUST_ENDR%3E%3CCUST_RQ%3E%3C%2FCUST_RQ%3E%3CREFRESH_IND%3E%3C%2FREFRESH_IND%3E%3CIGNORE_REQD_FLDS_IND%3E%3C%2FIGNORE_REQD_FLDS_IND%3E%3CSUBJ_DET%3E%3CDUNS_NBR%3E829654420%3C%2FDUNS_NBR%3E%3CCTRY_CD%3E%3C%2FCTRY_CD%3E%3CTRD_UP_IND%3E%3C%2FTRD_UP_IND%3E%3CPRIM_NME%3E%3C%2FPRIM_NME%3E%3CBUS_REGN_NBR%3E%3C%2FBUS_REGN_NBR%3E%3CBUS_REGN_NBR_TYPE_CD%3E%3C%2FBUS_REGN_NBR_TYPE_CD%3E%3CADR_LINE%3E%3C%2FADR_LINE%3E%3CPOST_TOWN%3E%3C%2FPOST_TOWN%3E%3CPRIM_GEO_AREA%3E%3C%2FPRIM_GEO_AREA%3E%3CPOST_CODE%3E%3C%2FPOST_CODE%3E%3CTLCM_NBR%3E%3C%2FTLCM_NBR%3E%3C%2FSUBJ_DET%3E%3CPROD%3EEnterprise+Management%3C%2FPROD%3E%3CPROD_TYPE_CD%3ED%3C%2FPROD_TYPE_CD%3E%3CDELV_REQS_NOW%3E%3CDELV_MODE_CD%3EDIRECT%3C%2FDELV_MODE_CD%3E%3CDELV_FMT_CD%3EXML%3C%2FDELV_FMT_CD%3E%3CLANG%3EEN%3C%2FLANG%3E%3CDELV_EMAIL%3E%3C%2FDELV_EMAIL%3E%3CDELV_EMAIL_CC%3E%3C%2FDELV_EMAIL_CC%3E%3C%2FDELV_REQS_NOW%3E%3CDELV_REQS_INV%3E%3CDELV_MODE_CD%3E%3C%2FDELV_MODE_CD%3E%3CDELV_FMT_CD%3E%3C%2FDELV_FMT_CD%3E%3CLANG%3E%3C%2FLANG%3E%3CDELV_EMAIL%3E%3C%2FDELV_EMAIL%3E%3CDELV_EMAIL_CC%3E%3C%2FDELV_EMAIL_CC%3E%3C%2FDELV_REQS_INV%3E%3CDELV_REQS_NTFY%3E%3CDELV_MODE_CD%3E%3C%2FDELV_MODE_CD%3E%3CDELV_FMT_CD%3E%3C%2FDELV_FMT_CD%3E%3CLANG%3E%3C%2FLANG%3E%3CDELV_EMAIL%3E%3C%2FDELV_EMAIL%3E%3CDELV_EMAIL_CC%3E%3C%2FDELV_EMAIL_CC%3E%3C%2FDELV_REQS_NTFY%3E%3C%2FDATARQ%3E%3C%2FDATATRNRQ%3E%3C%2FCREDITMSGSRQV2%3E%3C%2FDGX%3E"/>
    <to uri="file:/tmp?fileName=data-${date:now:yyyyMMdd-HHmm}.xml&amp;tempFileName=data-${date:now:yyyyMMdd-HHmm}.xml.part" />
</route>

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