Scenario
when HTTP interaction, specified on the server application / x-www-form- urlencoded Content-Type of the type required for Body entity url encoded packets. libcurl provides curl_easy_escape
例子
static void TestPostOfRestfulInterfaceByUrlEncode()
{
CURL *pCurlHandle = curl_easy_init();
curl_easy_setopt(pCurlHandle, CURLOPT_CUSTOMREQUEST, "POST");
curl_easy_setopt(pCurlHandle, CURLOPT_URL, "http://192.168.10.163:80/cs/restfull/excuteSqlByCode");
struct curl_slist *pCurlList = NULL;
pCurlList = curl_slist_append(pCurlList, "Content-Type: application/x-www-form-urlencoded");//指定文本url编码
curl_easy_setopt(pCurlHandle, CURLOPT_HTTPHEADER, pCurlList);
Json::Value jsonAuthen;
jsonAuthen["loginAccount"] = "root";
std::string strAuth = jsonAuthen.toStyledString();
//对参数authorJson的内容:{ "loginAccount" : "root"} ,进行url编码
char* pszEncodeAuth = curl_easy_escape(pCurlHandle, strAuth.c_str(), strAuth.length());
std::string strEncodeAuth = pszEncodeAuth;
//释放申请的内存
curl_free(pszEncodeAuth);
Json::Value jsonContent;
jsonContent["operatorname"] = "PostName";
Json::Value jsonParams;
jsonParams["name"] = "fengyuzaitu";
jsonContent["params"] = jsonParams;
std::string strParams = jsonContent.toStyledString();
char* pszParams = curl_easy_escape(pCurlHandle, strParams.c_str(), strParams.length());
std::string strEncodeParams = pszParams;
curl_free(pszParams);
std::string strPostData = "authorJson=" + strAuth + "&parmJson=" + strParams;
curl_easy_setopt(pCurlHandle, CURLOPT_POSTFIELDS, strPostUrlEncodeData.c_str());
CURLcode nRet = curl_easy_perform(pCurlHandle);
if (0 == nRet)
{
std::cout << "Post message successfully" << std::endl;
}
curl_slist_free_all(pCurlList);
curl_easy_cleanup(pCurlHandle);
}
Content Analysis:
/ *
original data without url encoded as follows:
authorJson = {
"loginAccount": "the root"
}
& parmJson = {
"OperatorName": "postname",
"the params": {
"name": "fengyuzaitu"
}
}
* /
STD :: String strPostUrlEncodeData = "authorJson =" + strEncodeAuth + "& parmJson =" + strEncodeParams;
/ *
through url-encoded data as follows: authorJson =% 7B% 0A% 20% 20% 20% 22loginAccount% 22% 20% 3A% 20% 22root% 22% 0A% 7D% 0A & parmJson =% 7B% 0A% 20% 20% 20% 22operatorname% 22% 20% 3A% 20% 22PostName% 22% 2C% 0A% 20% 20% 20% 22params % 22% 20% 3A% 20 % 7B% 0A% 20% 20% 20% 20% 20% 20% 22name% 22% 20% 3A% 20% 22fengyuzaitu% 22% 0A% 20% 20% 20% 7D% 0A 7D% 0A%
* /