调用地址：https://mquestion.market.alicloudapi.com/ocrservice/mathQuestion
请求方式：POST
返回类型：JSON

{
  //图像数据：base64编码，要求base64编码后大小不超过4M，最短边至少15px，最长边最大4096px，支持jpg/png/bmp格式，和url参数只能同时存在一个
  "img": "",
  //图像url地址：图片完整URL，URL长度不超过1024字节，URL对应的图片base64编码后大小不超过4M，最短边至少15px，最长边最大4096px，支持jpg/png/bmp格式，和img参数只能同时存在一个
  "url": ""
}

    public static void main(String[] args) {
        String url = "https://mquestion.market.alicloudapi.com/ocrservice/mathQuestion";
        String appcode = "你自己的AppCode";
        HashMap<String, String> headers = new HashMap<String, String>();
        //最后在header中的格式(中间是英文空格)为Authorization:APPCODE 83359fd73fe94948385f570e3c139105
        headers.put("Authorization", "APPCODE " + appcode);
        //根据API的要求，定义相对应的Content-Type
        headers.put("Content-Type", "application/json; charset=UTF-8");
        //如果需要使用本地图片，需要将图片base64码放在img后面，如果使用网络图片，则需要将网络图片url放于url参数后面
        String bodys = "{\"img\":\"\",\"url\":\"\"}";
        try {
            /**
            * 重要提示如下:
            * HttpClientUtils请从
            * https://gitee.com/duguangdemo/publicclouddemo/blob/master/src/main/java/util/HttpClientUtils.java
            * 下载
            * HttpExecuteResponse请从
            * https://gitee.com/duguangdemo/publicclouddemo/blob/master/src/main/java/util/HttpExecuteResponse.java
            * 下载
            *
            * 相应的依赖请参照
            * https://gitee.com/duguangdemo/publicclouddemo/blob/master/pom.xml
            */
            HttpExecuteResponse response = HttpClientUtils.doPost(url,bodys, headers);
            System.out.println(response.getResponseAsString());
            System.out.println(response.toString());
//            需要检查response的headers信息时可用以下代码,方便排查问题用
//            for (Object json : response.getHeaders()) {
//                System.out.println(json);
//            }

        } catch (Exception e) {
            e.printStackTrace();
        }
    }

//using System.IO;
//using System.Text;
//using System.Net;
//using System.Net.Security;
//using System.Security.Cryptography.X509Certificates;


        private const String host = "https://mquestion.market.alicloudapi.com";
        private const String path = "/ocrservice/mathQuestion";
        private const String method = "POST";
        private const String appcode = "你自己的AppCode";

        static void Main(string[] args)
        {
            String querys = "";
            String bodys = "{//图像数据：base64编码，要求base64编码后大小不超过4M，最短边至少15px，最长边最大4096px，支持jpg/png/bmp格式，和url参数只能同时存在一个\"img\":\"\",//图像url地址：图片完整URL，URL长度不超过1024字节，URL对应的图片base64编码后大小不超过4M，最短边至少15px，最长边最大4096px，支持jpg/png/bmp格式，和img参数只能同时存在一个\"url\":\"\"}";
            String url = host + path;
            HttpWebRequest httpRequest = null;
            HttpWebResponse httpResponse = null;

            if (0 < querys.Length)
            {
                url = url + "?" + querys;
            }

            if (host.Contains("https://"))
            {
                ServicePointManager.ServerCertificateValidationCallback = new RemoteCertificateValidationCallback(CheckValidationResult);
                httpRequest = (HttpWebRequest)WebRequest.CreateDefault(new Uri(url));
            }
            else
            {
                httpRequest = (HttpWebRequest)WebRequest.Create(url);
            }
            httpRequest.Method = method;
            httpRequest.Headers.Add("Authorization", "APPCODE " + appcode);
            //根据API的要求，定义相对应的Content-Type
            httpRequest.ContentType = "application/json; charset=UTF-8";
            if (0 < bodys.Length)
            {
                byte[] data = Encoding.UTF8.GetBytes(bodys);
                using (Stream stream = httpRequest.GetRequestStream())
                {
                    stream.Write(data, 0, data.Length);
                }
            }
            try
            {
                httpResponse = (HttpWebResponse)httpRequest.GetResponse();
            }
            catch (WebException ex)
            {
                httpResponse = (HttpWebResponse)ex.Response;
            }

            Console.WriteLine(httpResponse.StatusCode);
            Console.WriteLine(httpResponse.Method);
            Console.WriteLine(httpResponse.Headers);
            Stream st = httpResponse.GetResponseStream();
            StreamReader reader = new StreamReader(st, Encoding.GetEncoding("utf-8"));
            Console.WriteLine(reader.ReadToEnd());
            Console.WriteLine("\n");

        }

        public static bool CheckValidationResult(object sender, X509Certificate certificate, X509Chain chain, SslPolicyErrors errors)
        {
            return true;
        }

<?php
    $host = "https://mquestion.market.alicloudapi.com";
    $path = "/ocrservice/mathQuestion";
    $method = "POST";
    $appcode = "你自己的AppCode";
    $headers = array();
    array_push($headers, "Authorization:APPCODE " . $appcode);
    //根据API的要求，定义相对应的Content-Type
    array_push($headers, "Content-Type".":"."application/json; charset=UTF-8");
    $querys = "";
    $bodys = "{//图像数据：base64编码，要求base64编码后大小不超过4M，最短边至少15px，最长边最大4096px，支持jpg/png/bmp格式，和url参数只能同时存在一个\"img\":\"\",//图像url地址：图片完整URL，URL长度不超过1024字节，URL对应的图片base64编码后大小不超过4M，最短边至少15px，最长边最大4096px，支持jpg/png/bmp格式，和img参数只能同时存在一个\"url\":\"\"}";
    $url = $host . $path;

    $curl = curl_init();
    curl_setopt($curl, CURLOPT_CUSTOMREQUEST, $method);
    curl_setopt($curl, CURLOPT_URL, $url);
    curl_setopt($curl, CURLOPT_HTTPHEADER, $headers);
    curl_setopt($curl, CURLOPT_FAILONERROR, false);
    curl_setopt($curl, CURLOPT_RETURNTRANSFER, true);
    curl_setopt($curl, CURLOPT_HEADER, true);
    if (1 == strpos("$".$host, "https://"))
    {
        curl_setopt($curl, CURLOPT_SSL_VERIFYPEER, false);
        curl_setopt($curl, CURLOPT_SSL_VERIFYHOST, false);
    }
    curl_setopt($curl, CURLOPT_POSTFIELDS, $bodys);
    var_dump(curl_exec($curl));
?>

import urllib, urllib2, sys
import ssl


host = 'https://mquestion.market.alicloudapi.com'
path = '/ocrservice/mathQuestion'
method = 'POST'
appcode = '你自己的AppCode'
querys = ''
bodys = {}
url = host + path

bodys[''] = "{\"img\":\"\",\"url\":\"\"}"
post_data = bodys['']
request = urllib2.Request(url, post_data)
request.add_header('Authorization', 'APPCODE ' + appcode)

request.add_header('Content-Type', 'application/json; charset=UTF-8')
ctx = ssl.create_default_context()
ctx.check_hostname = False
ctx.verify_mode = ssl.CERT_NONE
response = urllib2.urlopen(request, context=ctx)
content = response.read()
if (content):
    print(content)

import urllib.request
import urllib.parse
import json
import time
import base64
with open('1.jpg', 'rb') as f:  # 以二进制读取本地图片
    data = f.read()
    encodestr = str(base64.b64encode(data),'utf-8')
#请求头
# 请修改为你自己的appcode，可从云市场订单或者api网关处获得
AppCode = "你自己的AppCode"
headers = {
    'Authorization': 'APPCODE ' + AppCode,
    'Content-Type': 'application/json; charset=UTF-8'
}

def posturl(url,data={}):
  try:
    params=json.dumps(dict).encode(encoding='UTF8')
    req = urllib.request.Request(url, params, headers)
    r = urllib.request.urlopen(req)
    html =r.read()
    r.close();
    return html.decode("utf8")
  except urllib.error.HTTPError as e:
      print(e.code)
      print(e.read().decode("utf8"))
  time.sleep(1)
if __name__=="__main__":
    url_request="https://mquestion.market.alicloudapi.com/ocrservice/mathQuestion"
    dict = {'img': encodestr}

    html = posturl(url_request, data=dict)
    print(html)

{
    //唯一id，用于问题定位
    "sid": "9902c7f5ef43f9983cb8ce3d017addb418aa6c0f357e93080e444e30b800cb54eb5dd7cc",
    //算法版本
    "prism_version": "1.0.9",
    //识别的文字块的数量，prism_wordsInfo数组大小
    "prism_wnum": 6,
    //识别的文字的具体内容
    "prism_wordsInfo": [
        {
            //文字块
            "word": "9.对于任意实数a，下列各式一定成立的是",
           //文字块的位置，按照文字块四个角的坐标顺时针排列，分别为左上XY坐标、右上XY坐标、右下XY坐标、左下XY坐标
            "pos": [
                {
                    "x": 1,
                    "y": 12
                },
                {
                    "x": 532,
                    "y": 12
                },
                {
                    "x": 532,
                    "y": 45
                },
                {
                    "x": 1,
                    "y": 44
                }
            ],
            "direction": 0,
           // 文字属性分类：{0, "中文印刷"}, {1, "拉丁语种"}, {2, "手写体"}, {3, "韩语"}, {4, "泰文"} ,{51,"公式"}
            "recClassify": 0,
            "angle": -90,
            "x": 251,
            "y": -237,
            "width": 32,
            "height": 532
        },
        {
            "word": "()",
            "pos": [
                {
                    "x": 757,
                    "y": 10
                },
                {
                    "x": 860,
                    "y": 11
                },
                {
                    "x": 860,
                    "y": 41
                },
                {
                    "x": 757,
                    "y": 40
                }
            ],
            "direction": 0,
            "recClassify": 0,
            "angle": -89,
            "x": 793,
            "y": -26,
            "width": 30,
            "height": 104
        },
        {
            "word": "A . \\sqrt { a ^ { 2 } - 1 } = \\sqrt { a - 1 } \\cdot \\sqrt { a + 1 }",
            "pos": [
                {
                    "x": 37,
                    "y": 56
                },
                {
                    "x": 402,
                    "y": 57
                },
                {
                    "x": 402,
                    "y": 94
                },
                {
                    "x": 37,
                    "y": 93
                }
            ],
            "direction": 0,
            "recClassify": 51,
            "angle": -89,
            "x": 201,
            "y": -106,
            "width": 37,
            "height": 365
        },
        {
            "word": "B . \\sqrt { \\left( a + 6 \\right) ^ { 2 } } = a + 6",
            "pos": [
                {
                    "x": 37,
                    "y": 106
                },
                {
                    "x": 284,
                    "y": 107
                },
                {
                    "x": 284,
                    "y": 146
                },
                {
                    "x": 37,
                    "y": 145
                }
            ],
            "direction": 0,
            "recClassify": 51,
            "angle": -89,
            "x": 141,
            "y": 2,
            "width": 38,
            "height": 248
        },
        {
            "word": "C . \\sqrt { - 1 6 \\cdot \\left( - a \\right) } = - 4 \\sqrt { - a }",
            "pos": [
                {
                    "x": 37,
                    "y": 156
                },
                {
                    "x": 409,
                    "y": 158
                },
                {
                    "x": 409,
                    "y": 196
                },
                {
                    "x": 37,
                    "y": 193
                }
            ],
            "direction": 0,
            "recClassify": 51,
            "angle": -89,
            "x": 205,
            "y": -10,
            "width": 36,
            "height": 372
        },
        {
            "word": "D . \\sqrt { 2 5 a ^ { 4 } } = 5 a ^ { 2 }",
            "pos": [
                {
                    "x": 37,
                    "y": 208
                },
                {
                    "x": 223,
                    "y": 209
                },
                {
                    "x": 223,
                    "y": 245
                },
                {
                    "x": 37,
                    "y": 244
                }
            ],
            "direction": 0,
            "recClassify": 51,
            "angle": -89,
            "x": 112,
            "y": 134,
            "width": 36,
            "height": 187
        }
    ],
    "height": 265,
    "width": 890,
    "orgHeight": 265,
    "orgWidth": 890,
    "content": "9.对于任意实数a，下列各式一定成立的是 () A . \\sqrt { a ^ { 2 } - 1 } = \\sqrt { a - 1 } \\cdot \\sqrt { a + 1 } B . \\sqrt { \\left( a + 6 \\right) ^ { 2 } } = a + 6 C . \\sqrt { - 1 6 \\cdot \\left( - a \\right) } = - 4 \\sqrt { - a } D . \\sqrt { 2 5 a ^ { 4 } } = 5 a ^ { 2 } "
}

{
  "error_code": 400,
  "error_msg": "img和url参数不能同时存在"
}