发送字符串与libcurl的PUT请求 [英] Send string in PUT request with libcurl

问题描述

我的code是这样的：

 卷曲= curl_easy_init（）;如果（卷曲）{
    标题= curl_slist_append（头，client_id_header）;
    标题= curl_slist_append（头，内容类型：应用程序/ JSON）;    curl_easy_setopt（卷曲，CURLOPT_HTTPHEADER头）;
    curl_easy_setopt（卷曲，CURLOPT_URL，127.0.0.1/test.php）;
    curl_easy_setopt（卷曲，CURLOPT_PUT，1L）;    RES = curl_easy_perform（卷曲）;
    RES = curl_easy_send（卷曲，json_struct，strlen的（json_struct），放大器; io_len）;    curl_slist_free_all（头）;
    curl_easy_cleanup（卷曲）;
}
 

这不工作，该方案只是挂起，直到永远。

在test.php的这些请求头，我得到：

 阵列（6）{
  [主机] =＆GT;
  字符串（9）127.0.0.1
  [接受] =＆GT;
  串（3）* / *
  [传输编码] =＆GT;
  字符串（7）分块
  [X-客户端Id] =＆GT;
  串（36）PHP _...
  [的Content-Type] =＆GT;
  串（16）应用程序/ JSON
  [期待] =＆GT;
  串（12）100-继续
}
 

但身体是空的，意味着没有JSON数据与请求一起发送。

我想用的libcurl做的其实是什么都没有，然后这些命令行脚本：

 卷曲-X PUT -H内容类型：应用程序/ JSON-d......一些JSON ......127.0.0.1/test.php
 

解决方案

明白了：）

不使用

  curl_easy_setopt（卷曲，CURLOPT_PUT，1L）;
 

请自定义请求和发送的数据为POSTFIELDS：

 卷曲= curl_easy_init（）;如果（卷曲）{
    标题= curl_slist_append（头，client_id_header）;
    标题= curl_slist_append（头，内容类型：应用程序/ JSON）;    curl_easy_setopt（卷曲，CURLOPT_HTTPHEADER头）;
    curl_easy_setopt（卷曲，CURLOPT_URL，request_url）;
    curl_easy_setopt（卷曲，CURLOPT_CUSTOMREQUEST，PUT）; / *！ * /    curl_easy_setopt（卷曲，CURLOPT_POSTFIELDS，json_struct）; / *数据放在这里* /    RES = curl_easy_perform（卷曲）;    curl_slist_free_all（头）;
    curl_easy_cleanup（卷曲）;
}
 

My code looks like this:

curl = curl_easy_init();

if (curl) {
    headers = curl_slist_append(headers, client_id_header);
    headers = curl_slist_append(headers, "Content-Type: application/json");

    curl_easy_setopt(curl, CURLOPT_HTTPHEADER, headers); 
    curl_easy_setopt(curl, CURLOPT_URL, "127.0.0.1/test.php");  
    curl_easy_setopt(curl, CURLOPT_PUT, 1L);

    res = curl_easy_perform(curl);
    res = curl_easy_send(curl, json_struct, strlen(json_struct), &io_len);

    curl_slist_free_all(headers);
    curl_easy_cleanup(curl);
}

Which doesnt work, the program just hangs forever.

In test.php these are the request headers I get:

array(6) {
  ["Host"]=>
  string(9) "127.0.0.1"
  ["Accept"]=>
  string(3) "*/*"
  ["Transfer-Encoding"]=>
  string(7) "chunked"
  ["X-ClientId"]=>
  string(36) "php_..."
  ["Content-Type"]=>
  string(16) "application/json"
  ["Expect"]=>
  string(12) "100-continue"
}

But the body is empty, means, no json data is sent with the request.

What I want to do with libcurl is actually nothing else then these command line script:

curl -X PUT -H "Content-Type: application/json" -d '... some json ...' 127.0.0.1/test.php

解决方案

Got it :)

Dont use

curl_easy_setopt(curl, CURLOPT_PUT, 1L);

Make a custom request and send the data as POSTFIELDS:

curl = curl_easy_init();

if (curl) {
    headers = curl_slist_append(headers, client_id_header);
    headers = curl_slist_append(headers, "Content-Type: application/json");

    curl_easy_setopt(curl, CURLOPT_HTTPHEADER, headers); 
    curl_easy_setopt(curl, CURLOPT_URL, request_url);  
    curl_easy_setopt(curl, CURLOPT_CUSTOMREQUEST, "PUT"); /* !!! */

    curl_easy_setopt(curl, CURLOPT_POSTFIELDS, json_struct); /* data goes here */

    res = curl_easy_perform(curl);

    curl_slist_free_all(headers);
    curl_easy_cleanup(curl);
}

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