百度云—使用机器人视觉SDK调用百度API方法教程

C#:

using System;
using System.Collections.Generic;
using System.Net.Http;

namespace com.baidu.ai
{
	public static class AccessToken

	{
	    // 调用getAccessToken()获取的 access_token建议根据expires_in 时间 设置缓存
	    // 返回token示例
		public static String TOKEN = "24.adda70c11b9786206253ddb70affdc46.2592000.1493524354.282335-1234567";

        // 百度云中开通对应服务应用的 API Key 建议开通应用的时候多选服务
		private static String clientId = "百度云应用的AK";
		// 百度云中开通对应服务应用的 Secret Key
		private static String clientSecret = "百度云应用的SK";

		public static String getAccessToken() {
			String authHost = "https://aip.baidubce.com/oauth/2.0/token";
			HttpClient client = new HttpClient();
			List<KeyValuePair<String, String>> paraList = new List<KeyValuePair<string, string>>();
			paraList.Add(new KeyValuePair<string, string>("grant_type", "client_credentials"));
			paraList.Add(new KeyValuePair<string, string>("client_id", clientId));
			paraList.Add(new KeyValuePair<string, string>("client_secret", clientSecret));

			HttpResponseMessage response = client.PostAsync(authHost, new FormUrlEncodedContent(paraList)).Result;
			String result = response.Content.ReadAsStringAsync().Result;
			Console.WriteLine(result);
			return result;
		}
	}
}

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