为什么对我的javaget请求的响应的头比Curl的相同URL少
我正在玩OANDA API。文档说明,对所有成功GET请求的响应将包括ETag头: 我已确认,当我成功请求Curl时,情况就是这样:为什么对我的javaget请求的响应的头比Curl的相同URL少,java,http,Java,Http,我正在玩OANDA API。文档说明,对所有成功GET请求的响应将包括ETag头: 我已确认,当我成功请求Curl时,情况就是这样: $ curl -i "https://api-sandbox.oanda.com/v1/prices?instruments=EUR_USD" HTTP/1.1 200 OK Server: openresty/1.7.0.1 Date: Fri, 26 Dec 2014 17:27:01 GMT Content-Type: application/json Co
$ curl -i "https://api-sandbox.oanda.com/v1/prices?instruments=EUR_USD"
HTTP/1.1 200 OK
Server: openresty/1.7.0.1
Date: Fri, 26 Dec 2014 17:27:01 GMT
Content-Type: application/json
Content-Length: 139
Connection: keep-alive
ETag: "6a6e222a3f90df8f333ff2a6edfb603e4a354905"
{
"prices" : [
{
"instrument" : "EUR_USD",
"time" : "2014-12-26T17:26:12.336249Z",
"bid" : 1.24105,
"ask" : 1.24119
}
]
}
但是,当我成功地向HttpClientorg.apache.httpcomponents 4.3
请求时,不包括内容长度和ETag头
2014-12-26 17:27:54 INFO RestClient:91 - Executing request: GET https://api-sandbox.oanda.com/v1/prices?instruments=EUR_USD HTTP/1.1
2014-12-26 17:27:55 INFO RestClient:103 - Response OK, processing...
2014-12-26 17:27:55 INFO RestClient:108 - {
"prices" : [
{
"instrument" : "EUR_USD",
"time" : "2014-12-26T17:28:01.935790Z",
"bid" : 1.241,
"ask" : 1.24117
}
]
}
2014-12-26 17:27:55 INFO RestClient:110 - Headers: [Server: openresty/1.7.0.1, Date: Fri, 26 Dec 2014 17:28:14 GMT, Content-Type: application/json, Transfer-Encoding: chunked, Connection: keep-alive]
当我记录响应javaget请求而收到的所有头时,我缺少ETag和Content-Length头
我想在我的Java代码中使用ETag头,因此请您帮助我理解为什么不返回它。默认情况下,HttpClient启用了压缩,并且启用压缩时OANDA API不支持ETag:
Note: ETags can not be used in conjunction with compressed responses.
我也没有在浏览器中获取它们。我在httpClient中禁用了压缩,然后收到了这些标记。这看起来类似于这个问题: