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封装调用接口代码:
- public class BaiduAIBase64Tool
- {
- public static string Invoke(string url, string imgurl)
- {
- //string host = "https://aip.baidubce.com/rest/2.0/ocr/v1/bankcard?access_token=" + "sdfdsf";
- Encoding encoding = Encoding.Default;
- HttpWebRequest request = (HttpWebRequest)WebRequest.Create(url);
- request.Method = "post";
- request.KeepAlive = true;
- // 图片的base64编码
- string base64 = getFileBase64(imgurl);
- String str = "image=" + HttpUtility.UrlEncode(base64);
- 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.UTF8);
- string result = reader.ReadToEnd();
- return result;
- }
-
- private static String getFileBase64(String fileName)
- {
- FileStream filestream = new FileStream(fileName, FileMode.Open);
- byte[] arr = new byte[filestream.Length];
- filestream.Read(arr, 0, (int)filestream.Length);
- string baser64 = Convert.ToBase64String(arr);
- filestream.Close();
- return baser64;
- }
- }
调用:
- /// <summary>
- /// 手写文字识别
- /// </summary>
- /// <returns></returns>
- public ActionResult Handwriting()
- {
- //注意token权限问题,你可能需要在文字识别下面创建一个应用,才有对应的权限
- string host = "https://aip.baidubce.com/rest/2.0/ocr/v1/handwriting?access_token=" + AccessTokenTools.GetToken();
- string result = BaiduAIBase64Tool.Invoke(host, "c:/img/a.png");
- return View();
- }
注意token权限问题,你可能需要在文字识别下面创建一个应用,才有对应的权限
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