libcurl 上传文件
#include "stdafx.h"
#include "stdafx.h"
#include
#include
#include
#include
#include
#include
using namespace cv;
using namespace std;
size_t Reply(void * ptr, size_t size, size_t nmemb, void * stream)
{
string* str = (string*)stream;
(*str).append((char*)ptr, size*nmemb);
return size*nmemb;
}
wstring str_cvt(const string& from_str, int cvt_type) {
int wstr_len =MultiByteToWideChar(cvt_type, 0, from_str.c_str(), -1, nullptr, 0);
wchar_t *wstr = new wchar_t[wstr_len + 1];
memset(wstr,0, (wstr_len + 1) * sizeof(wchar_t));
MultiByteToWideChar(cvt_type, 0, from_str.c_str(), -1, wstr,wstr_len);
wstring ret_str(wstr); delete[] wstr;
return ret_str;
}
string str_cvt(const wstring& from_str, int cvt_type) {
int str_len =WideCharToMultiByte(cvt_type, 0, from_str.c_str(), -1, nullptr, 0, nullptr, nullptr);
char *str = new char[str_len + 1];
memset(str,0, str_len + 1);
WideCharToMultiByte(cvt_type, 0, from_str.c_str(), -1, str,str_len, nullptr, nullptr);
string ret_str(str); delete[] str;
return ret_str;
}
//stringstream serialize(Mat input)
//{
// //We will need to also serialize the width, height, type and size of the matrix
// intwidth = input.cols;
// intheight = input.rows;
// inttype = input.type();
// size_tsize = input.total() * input.elemSize();
//
// //Initialize a stringstream and write the data
// stringstreamss;
// ss.write((char*)(&width),sizeof(int));
// ss.write((char*)(&height),sizeof(int));
// ss.write((char*)(&type),sizeof(int));
// ss.write((char*)(&size),sizeof(size_t));
//
// //Write the whole image data
// ss.write((char*)input.data,size);
//
// returnss;
//}
void upload_file() {
CURL *curl;
CURLcode res;
string data; // 返回的内容
struct curl_httppost *formpost = NULL;
struct curl_httppost *lastptr = NULL;
struct curl_slist *headerlist = NULL;
static const char buf[] = "Expect:";
Mat image = imread("d:\\11.jpeg", CV_LOAD_IMAGE_COLOR);
IplImage iplimage = image;
vector<uchar> buff;//buffer for coding
vector<int> param = vector<int>(2);
param[0] = CV_IMWRITE_JPEG_QUALITY;
param[1] = 95;//default(95) 0-100
imencode(".jpg", image, buff,param);
std::stringstr_encode(buff.begin(), buff.end());
//stringstream serializedStream = serialize(image);
int size =image.total() * image.elemSize();
byte * bytes = new byte[size]; // you will have todelete[] that later
std::memcpy(bytes,image.data, size * sizeof(byte));
curl_global_init(CURL_GLOBAL_ALL);
/* Fill in the file upload field */
curl_formadd(&formpost,
&lastptr,
CURLFORM_COPYNAME, "message",
CURLFORM_COPYCONTENTS, "hello",
CURLFORM_END);
/* Add a buffer to upload */
curl_formadd(&formpost,&lastptr,
CURLFORM_COPYNAME, "myfile",
CURLFORM_BUFFER, "data",
CURLFORM_BUFFERPTR, str_encode.c_str(),
CURLFORM_BUFFERLENGTH, str_encode.length(),
CURLFORM_CONTENTTYPE, "image/jpeg",
CURLFORM_END);
curl_formadd(&formpost,
&lastptr,
CURLFORM_COPYNAME, "myfile",
CURLFORM_FILE, "11.jpeg",
//CURLFORM_CONTENTTYPE,"application/vnd.ms-excel",
CURLFORM_END);
curl= curl_easy_init();
/* initalize custom header list (stating that Expect:100-continue is not
wanted*/
headerlist= curl_slist_append(headerlist, buf);
if (curl) {
/* what URL that receives this POST */
curl_easy_setopt(curl,CURLOPT_URL, "http://127.0.0.1:8000/pic_class/");
//if ((argc == 2) && (!strcmp(argv[1],"noexpectheader")))
/* only disable 100-continue header if explicitlyrequested */
curl_easy_setopt(curl,CURLOPT_HTTPHEADER, headerlist);
curl_easy_setopt(curl,CURLOPT_HTTPPOST, formpost);
curl_easy_setopt(curl,CURLOPT_WRITEDATA, &data);
curl_easy_setopt(curl,CURLOPT_WRITEFUNCTION, Reply);
/* Perform the request, res will get the return code */
res= curl_easy_perform(curl);
/* Check for errors */
if (res != CURLE_OK)
fprintf(stderr, "curl_easy_perform() failed: %s\n",
curl_easy_strerror(res));
/* always cleanup */
curl_easy_cleanup(curl);
/* then cleanup the formpost chain */
curl_formfree(formpost);
/* free slist */
curl_slist_free_all(headerlist);
}
}
int main()
{
upload_file();
string data; // 返回的内容
CURL *curl;
CURLcode res;
curl_global_init(CURL_GLOBAL_ALL);
curl= curl_easy_init();
if (curl) {
curl_easy_setopt(curl,CURLOPT_URL, "https://kyfw.12306.cn/otn/login/init");
curl_easy_setopt(curl,CURLOPT_SSL_VERIFYPEER, 0L);
curl_easy_setopt(curl,CURLOPT_SSL_VERIFYHOST, 0L);
curl_easy_setopt(curl,CURLOPT_WRITEFUNCTION, Reply);
curl_easy_setopt(curl,CURLOPT_WRITEDATA, &data);
res= curl_easy_perform(curl);
if (res != CURLE_OK)
fprintf(stderr, "curl_easy_perform() failed: %s\n", curl_easy_strerror(res));
curl_easy_cleanup(curl);
}
curl_global_cleanup();
cout<<str_cvt(str_cvt(data, CP_UTF8), CP_ACP) << endl;
getchar();
return 0;
}