<?php
/**
 * 发起http post请求(REST API), 并获取REST请求的结果
 * @param string $url
 * @param string $param
 * @return - http response body if succeeds, else false.
 */
function request_post($url = '', $param = '')
{
    if (empty($url) || empty($param)) {
        return false;
    }

    $postUrl = $url;
    $curlPost = $param;
    // 初始化curl
    $curl = curl_init();
    curl_setopt($curl, CURLOPT_URL, $postUrl);
    curl_setopt($curl, CURLOPT_HEADER, 0);
    // 要求结果为字符串且输出到屏幕上
    curl_setopt($curl, CURLOPT_RETURNTRANSFER, 1);
    curl_setopt($curl, CURLOPT_SSL_VERIFYPEER, false);
    // post提交方式
    curl_setopt($curl, CURLOPT_POST, 1);
    curl_setopt($curl, CURLOPT_POSTFIELDS, $curlPost);
    // 运行curl
    $data = curl_exec($curl);
    curl_close($curl);

    return $data;
}

$token = '[调用鉴权接口获取的token]';
$url = 'https://aip.baidubce.com/rest/2.0/face/v3/detect?access_token=' . $token;
$bodys = "{\"image\":\"027d8308a2ec665acb1bdf63e513bcb9\",\"image_type\":\"FACE_TOKEN\",\"face_field\":\"faceshape,facetype\"}"
$res = request_post($url, $bodys);
var_dump($res);

package com.baidu.ai.aip;

import com.baidu.ai.aip.utils.HttpUtil;
import com.baidu.ai.aip.utils.GsonUtils;

import java.util.*;

/**
* 人脸检测与属性分析
*/
public class FaceDetect {

    /**
    * 重要提示代码中所需工具类
    * FileUtil,Base64Util,HttpUtil,GsonUtils请从
    * https://ai.baidu.com/file/658A35ABAB2D404FBF903F64D47C1F72
    * https://ai.baidu.com/file/C8D81F3301E24D2892968F09AE1AD6E2
    * https://ai.baidu.com/file/544D677F5D4E4F17B4122FBD60DB82B3
    * https://ai.baidu.com/file/470B3ACCA3FE43788B5A963BF0B625F3
    * 下载
    */
    public static String detect() {
        // 请求url
        String url = "https://aip.baidubce.com/rest/2.0/face/v3/detect";
        try {
            Map<String, Object> map = new HashMap<>();
            map.put("image", "027d8308a2ec665acb1bdf63e513bcb9");
            map.put("face_field", "faceshape,facetype");
            map.put("image_type", "FACE_TOKEN");

            String param = GsonUtils.toJson(map);

            // 注意这里仅为了简化编码每一次请求都去获取access_token，线上环境access_token有过期时间， 客户端可自行缓存，过期后重新获取。
            String accessToken = "[调用鉴权接口获取的token]";

            String result = HttpUtil.post(url, accessToken, "application/json", param);
            System.out.println(result);
            return result;
        } catch (Exception e) {
            e.printStackTrace();
        }
        return null;
    }

    public static void main(String[] args) {
        FaceDetect.detect();
    }
}

# encoding:utf-8
import urllib
import urllib2

'''
人脸检测与属性分析
'''

request_url = "https://aip.baidubce.com/rest/2.0/face/v3/detect"


params = "{\"image\":\"027d8308a2ec665acb1bdf63e513bcb9\",\"image_type\":\"FACE_TOKEN\",\"face_field\":\"faceshape,facetype\"}"

access_token = '[调用鉴权接口获取的token]'
request_url = request_url + "?access_token=" + access_token
request = urllib2.Request(url=request_url, data=params)
request.add_header('Content-Type', 'application/json')
response = urllib2.urlopen(request)
content = response.read()
if content:
    print content

#include <iostream>
#include <curl/curl.h>

// libcurl库下载链接：https://curl.haxx.se/download.html
// jsoncpp库下载链接：https://github.com/open-source-parsers/jsoncpp/
const static std::string request_url = "https://aip.baidubce.com/rest/2.0/face/v3/detect";
static std::string detect_result;
/**
 * curl发送http请求调用的回调函数，回调函数中对返回的json格式的body进行了解析，解析结果储存在全局的静态变量当中
 * @param 参数定义见libcurl文档
 * @return 返回值定义见libcurl文档
 */
static size_t callback(void *ptr, size_t size, size_t nmemb, void *stream) {
    // 获取到的body存放在ptr中，先将其转换为string格式
    detect_result = std::string((char *) ptr, size * nmemb);
    return size * nmemb;
}
/**
 * 人脸检测与属性分析
 * @return 调用成功返回0，发生错误返回其他错误码
 */
int detect(std::string &json_result, const std::string &access_token) {
    std::string url = request_url + "?access_token=" + access_token;
    CURL *curl = NULL;
    CURLcode result_code;
    int is_success;
    curl = curl_easy_init();
    if (curl) {
        curl_easy_setopt(curl, CURLOPT_URL, url.data());
        curl_easy_setopt(curl, CURLOPT_POST, 1);
        curl_slist *headers = NULL;
        headers = curl_slist_append(headers, "Content-Type:application/json;charset=UTF-8");
        curl_easy_setopt(curl, CURLOPT_HTTPHEADER, headers);
        curl_easy_setopt(curl, CURLOPT_POSTFIELDS, "{\"image\":\"027d8308a2ec665acb1bdf63e513bcb9\",\"image_type\":\"FACE_TOKEN\",\"face_field\":\"faceshape,facetype\"}");
        result_code = curl_easy_perform(curl);
        if (result_code != CURLE_OK) {
            fprintf(stderr, "curl_easy_perform() failed: %s
",
                    curl_easy_strerror(result_code));
            is_success = 1;
            return is_success;
        }
        json_result = detect_result;
        curl_easy_cleanup(curl);
        is_success = 0;
    } else {
        fprintf(stderr, "curl_easy_init() failed.");
        is_success = 1;
    }
    return is_success;
}

using System;
using System.IO;
using System.Net;
using System.Text;
using System.Web;

namespace com.baidu.ai
{
    public class FaceDetect
    {
        // 人脸检测与属性分析
        public static string detect()
        {
            string token = "[调用鉴权接口获取的token]";
            string host = "https://aip.baidubce.com/rest/2.0/face/v3/detect?access_token=" + token;
            Encoding encoding = Encoding.Default;
            HttpWebRequest request = (HttpWebRequest)WebRequest.Create(host);
            request.Method = "post";
            request.KeepAlive = true;
            String str = "{\"image\":\"027d8308a2ec665acb1bdf63e513bcb9\",\"image_type\":\"FACE_TOKEN\",\"face_field\":\"faceshape,facetype\"}";
            byte[] buffer = encoding.GetBytes(str);
            request.ContentLength = buffer.Length;
            request.GetRequestStream().Write(buffer, 0, buffer.Length);
            HttpWebResponse response = (HttpWebResponse)request.GetResponse();
            StreamReader reader = new StreamReader(response.GetResponseStream(), Encoding.Default);
            string result = reader.ReadToEnd();
            Console.WriteLine("人脸检测与属性分析:");
            Console.WriteLine(result);
            return result;
        }
    }
}