kepware http接口 c语言(libcrul)开发

列出所有变量

CURL *hnd = curl_easy_init();

curl_easy_setopt(hnd, CURLOPT_CUSTOMREQUEST, "GET");
curl_easy_setopt(hnd, CURLOPT_URL, "http://127.0.0.1:39321/iotgateway/browse");

struct curl_slist *headers = NULL;
headers = curl_slist_append(headers, "Postman-Token: 0b95f019-57f6-49cc-b94a-8f90505f9a90");
headers = curl_slist_append(headers, "cache-control: no-cache");
headers = curl_slist_append(headers, "Accept-Language: zh-CN,zh;q=0.9");
headers = curl_slist_append(headers, "Accept-Encoding: gzip, deflate, br");
headers = curl_slist_append(headers, "Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,image/apng,*/*;q=0.8");
headers = curl_slist_append(headers, "User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/69.0.3497.81 Safari/537.36");
headers = curl_slist_append(headers, "Upgrade-Insecure-Requests: 1");
headers = curl_slist_append(headers, "Cache-Control: max-age=0");
headers = curl_slist_append(headers, "Connection: keep-alive");
curl_easy_setopt(hnd, CURLOPT_HTTPHEADER, headers);

CURLcode ret = curl_easy_perform(hnd);

读取某变量的值

CURL *hnd = curl_easy_init();

curl_easy_setopt(hnd, CURLOPT_CUSTOMREQUEST, "GET");
curl_easy_setopt(hnd, CURLOPT_URL, "http://127.0.0.1:39321/iotgateway/read?ids=Channel1.Device1.tag1,Channel1.Device1.tag2");

struct curl_slist *headers = NULL;
headers = curl_slist_append(headers, "Postman-Token: 12a8d1f3-ef0e-45a0-9ae7-b078b62902ca");
headers = curl_slist_append(headers, "cache-control: no-cache");
headers = curl_slist_append(headers, "Accept-Language: zh-CN,zh;q=0.9");
headers = curl_slist_append(headers, "Accept-Encoding: gzip, deflate, br");
headers = curl_slist_append(headers, "Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,image/apng,*/*;q=0.8");
headers = curl_slist_append(headers, "User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/69.0.3497.81 Safari/537.36");
headers = curl_slist_append(headers, "Upgrade-Insecure-Requests: 1");
headers = curl_slist_append(headers, "Cache-Control: max-age=0");
headers = curl_slist_append(headers, "Connection: keep-alive");
curl_easy_setopt(hnd, CURLOPT_HTTPHEADER, headers);

CURLcode ret = curl_easy_perform(hnd);

原文地址：https://www.cnblogs.com/dXIOT/p/10626492.html