了解 HTTP 服务器和客户端如何理解请求的媒体类型

Question

我已经编写了一个 http4 客户端来将 Json 数据推送到将接收 http 请求或 post 的服务器。现在，我的代码在某些系统上工作而不在其他系统上工作？我不知道问题出在哪里。是服务器还是客户端。下面是 POST 到服务器的跟踪以及从服务器返回到客户端的响应。有人可以向我解释为什么这会失败吗？服务器是否告诉我它期待 JSON 以外的东西？谢谢！！！

我试过使用不同的 header 得到相同的结果。我尝试发送多部分 form-data 媒体类型的 CSV，这也失败了，响应相同？？？？请注意回复，ACCEPT=multipart/form-data header POST 请求

 setHeader[CamelHttpMethod, POST] --> 
    http4://apm-ts-query-svc-prod.app-api.aws-usw02-pr.px.io:443/v2/ts/upload?throwExceptionOnFailure=false <<< Pattern:InOnly, 
    Headers:{Authorization=Bearer eyJhbGciOiJSUzI1NiIsImtpZCI6ImxlZ2FjeS10b2tlbi1rZXkiLCJ0eXAiOiJKV1QifQ.eyJqdGkiOiI0Zrzfo6VKOA, 
    breadcrumbId=ID-alfuse2i-35498-1557318510555-3-598, CamelAcceptContentType=application/json, CamelFileAbsolute=false, 
CamelFileAbsolutePath=/app/PassThruMT1/jboss-fuse-6.3.0.redhat-310/g-dig/upload/Industries/J402_Motor_2019-05-02-11-00-00_0.csv, CamelFileLastModified=1557319009000, CamelFileLength=1538, 
CamelFileName=Industries/J_Motor_2019-05-02-11-00-00_0.csv, 
CamelFileNameConsumed=Industries/J_Motor_2019-05-02-11-00-00_0.csv, 
CamelFileNameOnly=J_Motor_2019-05-02-11-00-00_0.csv, CamelFileNameProduced=g-dig/json/Industries/J_Motor_2019-05-02-11-00-00_0.csv, CamelFileParent=g-d/upload/Industries, CamelFilePath=g-dal/upload/Industries/J_Motor_2019-05-02-11-00-00_0.csv, CamelFileRelativePath=Industries/J_Motor_2019-05-02-11-00-00_0.csv, CamelHttpCharacterEncoding=UTF-8, 
CamelHttpMethod=POST, 
CamelHttpUri=https://apm-ts-ingestion-svc-prod.app-api.aws-usw02-pr.px.io/v2/ts/upload?throwExceptionOnFailure=false, 
Content-Type=application/json, CUSTKEY=Industries, EXPIRY=2019-05-09 06:36:36.101, TENANT=676f31-752-40d-81-c80c5be, TOKEN=eyJhbGciOiJSUzI1NiIsImtpZeQ2eflqE5C3j44MvhPIR0bSEZgznonA503vrzfo6VKOA, UPLOADURL=https://apm-ts-ingestion-svc-prod.app-api.aws-usw02-pr.px.io/v2/ts/upload, x-ge-csvformat=ODB}, BodyType:String, Body:{
          "tags" : [ {
            "tagId" : "TI5925.PV",
            "data" : [ {
              "ts" : "2019-05-02T16:00:00",
              "v" : "8.903611",
              "q" : "3"
            } ]
          }, {
            "tagId" : "TIA4562.PV",
            "data" : [ {
              "ts" : "2019-05-02T16:00:00",
              "v" : "56.47153",
              "q" : "3"
            } ]
          }, {
            "tagId" : "XIA4596A.PV",
            "data" : [ {
              "ts" : "2019-05-02T16:00:00",
              "v" : "3.335917",
              "q" : "3"
            } ]
          }, {
            "tagId" : "XIA4596B.PV",
            "data" : [ {
              "ts" : "2019-05-02T16:00:00",
              "v" : "1.670584",
              "q" : "3"
            } ]
          }, {
            "tagId" : "TIA4561.PV",
            "data" : [ {
              "ts" : "2019-05-02T16:00:00",
              "v" : "49.85203",
              "q" : "3"
            } ]
          }, {
            "tagId" : "XIA4595A.PV",
            "data" : [ {
              "ts" : "2019-05-02T16:00:00",
              "v" : "2.098929",
              "q" : "3"
            } ]
          }, {
            "tagId" : "XIA4595B.PV",
            "data" : [ {
              "ts" : "2019-05-02T16:00:00",
              "v" : "2.647079",
              "q" : "3"
            } ]
          }, {
            "tagId" : "TIA4565.PV",
        ... [Body clipped after 1000 chars, total length is 16321]

回应

log[HTTP4 Upload Response: ${body}] <<< Pattern:InOnly, Headers:{Accept=multipart/form-data, Authorization=Bearer eyJhbGciOiJSUzI1NiIsImtpZCI6ImxlZ2FjeS10b2tlbi1rZXkiLCJ0eXAiOiJKV1QifQ.eyJqdGkiOiI0ZmYwY2UxZGFhN2E0N2U4ODIwA503vrzfo6VKOA, breadcrumbId=ID-alphprdfuse2i-35498-1557318510555-3-598, Cache-Control=no-cache, no-store, max-age=0, must-revalidate, 
    CamelAcceptContentType=application/json, 
    CamelFileAbsolute=false, CamelFileAbsolutePath=/app/PassMT1/jboss-fuse-6.3.0.redhat-310/tal/upload/Industries/J_Motor_2019-05-02-11-00-00_0.csv,
 CamelFileLastModified=1557319009000, CamelFileLength=1538,
 CamelFileName=Industries/J_Motor_2019-05-02-11-00-00_0.csv, CamelFileNameConsumed=Industries/J_Motor_2019-05-02-11-00-00_0.csv,
 CamelFileNameOnly=J_Motor_2019-05-02-11-00-00_0.csv, 
CamelFileNameProduced=g-dal/json/Industries/J_Motor_2019-05-02-11-00-00_0.csv, CamelFileParent=g-dal/upload/Industries, 
CamelFilePath=g-dal/upload/Industries/J_Motor_2019-05-02-11-00-00_0.csv, 
CamelFileRelativePath=Industries/J_Motor_2019-05-02-11-00-00_0.csv, 
CamelHttpCharacterEncoding=UTF-8, CamelHttpMethod=POST, 
CamelHttpResponseCode=415, CamelHttpResponseText=Unsupported Media Type, 
CamelHttpUri=https://apm-ts-ingestion-svc-prod.app-api.aws-usw02-pr.px.io/v2/ts/upload?throwExceptionOnFailure=false, Connection=keep-alive, 
Content-Length=0, Corr=4c4ffcb10fa7ef1c, CUSTKEY=Industries, 
Date=Wed, 08 May 2019 12:38:27 GMT, Expires=0, EXPIRY=2019-05-09 06:36:36.101, Pragma=no-cache, Server=none, Strict-Transport-Security=max-age=31536000 ; includeSubDomains, TENANT=67626f31-75-43-81b-cc5bdbce, TOKEN=eyJhbGciOiJSUzI1NiIsI6GlLIGp8-HPeQ2eflqE5C3j44MvhPIR0bSEZgznonA503vrzfo6VKOA, UPLOADURL=https://apm-ts-ingestion-svc-prod.app-api.aws-usw02-pr.px.io/v2/ts/upload, X-Application-Context=APMTS:cloud:0, X-Content-Type-Options=nosniff, X-Frame-Options=DENY, x-ge-csvformat=ODB, X-Vcap-Request-Id=01d04cf7-47ae-4cf9-7d4c-357afe207769, X-Xss-Protection=1; mode=block}, BodyType:org.apache.camel.converter.stream.InputStreamCache, Body:[Body is instance of org.apache.camel.StreamCache]

Answer 1

嗯，这正是我所怀疑的原因。事实证明，上传 URL 有 2 个不同的端点，/upload 用于 CSV 数据多部分 form-data，没有 /upload 用于 JSON。所以，答案是肯定的。服务器在响应 header 中发回它期望的媒体类型。

https://apm-ts-ingestion-svc-prod.app-api.aws-usw02-pr.px.io/v2/ts/upload  - CSV
https://apm-ts-ingestion-svc-prod.app-api.aws-usw02-pr.px.io/v2/ts - JSON

谢谢，希望这对其他人也有帮助。

了解 HTTP 服务器和客户端如何理解请求的媒体类型

Understand how HTTP server and lclient understand the media type of a request

apache

http

apache-camel

http4s