0

我在 c++ 应用程序中创建了一个带有标题的 cURL 帖子:

CURL *curl = curl_easy_init();
curl_easy_setopt(curl, CURLOPT_URL, url.c_str());               
curl_easy_setopt(curl, CURLOPT_WRITEDATA, &bufferdata);     
curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, writerResponse);

struct curl_slist *headers=NULL;
char outputmessage[]="";            

headers = curl_slist_append(headers, "Accept: application/json");
headers = curl_slist_append(headers, "Content-Type: application/json");
curl_easy_setopt(curl, CURLOPT_HTTPHEADER, headers );
curl_easy_setopt(curl, CURLOPT_POSTFIELDS, cJSONstring.c_str());
curl_easy_setopt(curl, CURLOPT_POSTFIELDSIZE, cJSONstring.length());
curl_easy_setopt(curl, CURLOPT_VERBOSE,1);
curl_easy_setopt(curl, CURLOPT_HEADER,1);
curl_easy_setopt(curl, CURLOPT_DEBUGFUNCTION, my_trace);

curl_multi_add_handle(m_telemetryCurlm, curl);

我创建了一个线程来调用多执行:

void ContentManager::processTelemetry()
{
    m_telemetryThreadRunning = true;
    while(m_telemetryThreadRunning)
    {
        static_cast<ADCAnalytics*>(m_adcAnalytics)->performTelemerty();
        usleep(5000); 
    }   
}

void ADCAnalytics::performTelemerty()
{   
    // number of active downloads
    int counter = 0;

    // preform downloading
    curl_multi_perform(m_telemetryCurlm, &counter);     

    // handle CURL actions (connection errors, download finish, etc.)
    checkCURLMessages();    
} 

但是当我检查 curl 消息时,我得到:

12-10 13:23:00.845: I/ADC(17248): 缓冲区 = HTTP/1.1 400 错误请求

12-10 13:23:00.845: I/ADC(17248): X-TraceUrl: /appstats/details?time=1355145806563&type=json

12-10 13:23:00.845:I/ADC(17248):内容类型:文本/纯文本

12-10 13:23:00.845:I/ADC(17248):变化:接受编码

12-10 13:23:00.845:I/ADC(17248):日期:2012 年 12 月 10 日星期一 13:23:26 GMT

12-10 13:23:00.845:I/ADC(17248):服务器:谷歌前端

12-10 13:23:00.845:I/ADC(17248):缓存控制:私有

12-10 13:23:00.845:I/ADC(17248):传输编码:分块

似乎 curl_multi_add_handle 和 curl_multi_perform 之间的内容类型发生了变化。有人知道这里有什么问题吗?我该怎么做才能避免内容类型发生变化?

添加以下代码时

         do {
        while(curl_multi_perform(m_telemetryCurlm, &still_running) ==CURLM_CALL_MULTI_PERFORM);                                 
    } while (still_running);                                                             

设置 cURL 对象后立即。请求被发送到服务器,我得到

12-10 13:11:48.105: I/ADC(16845): 缓冲区 = HTTP/1.1 200 OK

12-10 13:11:48.105: I/ADC(16845): X-TraceUrl: /appstats/details?time=1355145133776&type=json

12-10 13:11:48.105:I/ADC(16845):内容类型:应用程序/json

12-10 13:11:48.105:I/ADC(16845):变化:接受编码

12-10 13:11:48.105:I/ADC(16845):日期:2012 年 12 月 10 日星期一 13:12:13 GMT

12-10 13:11:48.105:I/ADC(16845):服务器:谷歌前端

12-10 13:11:48.105:I/ADC(16845):缓存控制:私有

12-10 13:11:48.105: I/ADC(16845): Transfer-Encoding: chunked
所以,我不相信服务器端有什么问题。

谢谢

4

1 回答 1

0

Aren't you comparing the Content-Type you SEND with the one you RECEIVE?

于 2012-12-10T21:35:04.143 回答