1import requests
2
3with open('./1.jpg', 'rb') as f:
4    img = f.read()
5
6## params 为GET参数 data 为POST Body
7result = requests.post('http://127.0.0.1:24401/', params={'threshold': 0.1},
8                                                  data=img).json()
9print(result)

1FileStream fs = new FileStream("./img.jpg", FileMode.Open);
2BinaryReader br = new BinaryReader(fs);
3byte[] img = br.ReadBytes((int)fs.Length);
4br.Close();
5fs.Close();
6string url = "http://127.0.0.1:8402?threshold=0.1";
7HttpWebRequest request = (HttpWebRequest)HttpWebRequest.Create(url);
8request.Method = "POST";
9Stream stream = request.GetRequestStream();
10stream.Write(img, 0, img.Length);
11stream.Close();
12
13WebResponse response = request.GetResponse();
14StreamReader sr = new StreamReader(response.GetResponseStream());
15Console.WriteLine(sr.ReadToEnd());
16sr.Close();
17response.Close();

1// 使用示例代码如下，需要安装curl
2#include <sys/stat.h>
3#include <curl/curl.h>
4#include <iostream>
5#include <string>
6#define S_ISREG(m) (((m) & 0170000) == (0100000))   
7#define S_ISDIR(m) (((m) & 0170000) == (0040000))   
8
9size_t write_callback(void *ptr, size_t size, size_t num, void *data) {
10    std::string *str = dynamic_cast<std::string *>((std::string *)data);
11    str->append((char *)ptr, size*num);
12    return size*num;
13}
14
15int main(int argc, char *argv[]) {
16    const char *post_data_filename = "./img.jpg";
17    FILE *fp = NULL;
18    std::string response;
19    struct stat stbuf = { 0, };
20    fp = fopen(post_data_filename, "rb");
21    if (!fp) {
22        fprintf(stderr, "Error: failed to open file \"%s\"\n", post_data_filename);
23        return -1;
24    }
25    if (fstat(fileno(fp), &stbuf) || !S_ISREG(stbuf.st_mode)) {
26        fprintf(stderr, "Error: unknown file size \"%s\"\n", post_data_filename);
27        return -1;
28    }
29    CURL *curl;
30    CURLcode res;
31    curl_global_init(CURL_GLOBAL_ALL);
32    curl = curl_easy_init();
33    if (curl != NULL) {
34        curl_easy_setopt(curl, CURLOPT_URL, "http://127.0.0.1:24401?threshold=0.1");
35        curl_easy_setopt(curl, CURLOPT_POST, 1L);
36        curl_easy_setopt(curl, CURLOPT_POSTFIELDSIZE_LARGE,(curl_off_t)stbuf.st_size);
37        curl_easy_setopt(curl, CURLOPT_READDATA, (void *)fp);
38		curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, write_callback);
39        curl_easy_setopt(curl, CURLOPT_WRITEDATA, &response);
40        res = curl_easy_perform(curl);
41
42        if (res != CURLE_OK) {
43            fprintf(stderr, "curl_easy_perform() failed: %s\n", curl_easy_strerror(res));
44        }
45        std::cout << response << std::endl; // response即为返回的json数据
46        curl_easy_cleanup(curl);
47    }
48    curl_global_cleanup();
49    fclose(fp);
50    return 0;
51}

1import java.io.*;
2import java.net.HttpURLConnection;
3import java.net.URL;
4
5public class Main {
6    public static void main(String[] args) {
7        String result = doPostFile("http://127.0.0.1:24401/?threshold=0.1", "./1.jpg");
8        System.out.println(result);
9    }
10
11    private static String doPostFile(String reqUrl, String fileUrl) {
12        HttpURLConnection url_con = null;
13        String responseContent = null;
14        try {
15            URL url = new URL(reqUrl);
16            url_con = (HttpURLConnection) url.openConnection();
17            url_con.setRequestMethod("POST");
18            url_con.setDoOutput(true);
19            byte[] data = Util.readFileByBytes(fileUrl);
20            url_con.getOutputStream().write(data, 0, data.length);
21            url_con.getOutputStream().flush();
22            url_con.getOutputStream().close();
23            InputStream in = url_con.getInputStream();
24            BufferedReader rd = new BufferedReader(new InputStreamReader(in , "UTF-8"));
25            String tempLine = rd.readLine();
26            StringBuffer tempStr = new StringBuffer();
27            String crlf = System.getProperty("line.separator");
28            while (tempLine != null) {
29                tempStr.append(tempLine);
30                tempStr.append(crlf);
31                tempLine = rd.readLine();
32            }
33            responseContent = tempStr.toString();
34            rd.close();
35            in.close();
36        } catch (IOException e) {
37            System.out.println("请求错误信息:" + e.getMessage());
38        } finally {
39            if (url_con != null) {
40                url_con.disconnect();
41            }
42        }
43        return responseContent;
44    }
45
46    static class Util {
47        static byte[] readFileByBytes(String fileUrl) throws IOException {
48            InputStream in = null;
49            ByteArrayOutputStream out = null;
50            try {
51                in = new FileInputStream(fileUrl);
52                out = new ByteArrayOutputStream();
53                byte[] buffer = new byte[1024];
54                int len;
55                while ((len = in.read(buffer)) != -1) {
56                    out.write(buffer, 0, len);
57                }
58                return out.toByteArray();
59            } finally {
60                if (in != null) {
61                    in.close();
62                }
63                if (out != null) {
64                    out.close();
65                }
66            }
67        }
68    }
69}