Java 调用Azure认知服务Demo

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// This sample uses the Apache HTTP client from HTTP Components (http://hc.apache.org/httpcomponents-client-ga/)　　package buct.edu.cn;
　　import java.io.FileInputStream;
　　import java.net.URI;
　　import org.apache.http.HttpEntity;
　　import org.apache.http.HttpResponse;
　　import org.apache.http.client.HttpClient;
　　import org.apache.http.client.methods.HttpPost;
　　import org.apache.http.client.utils.URIBuilder;
　　import org.apache.http.entity.ByteArrayEntity;
　　import org.apache.http.impl.client.HttpClients;
　　import org.apache.http.util.EntityUtils;

　　public>　　public static void main(String[] args) {
　　HttpClient httpclient = HttpClients.createDefault();
　　try
　　{
　　URIBuilder builder = new URIBuilder("https://api.cognitive.azure.cn/vision/v1.0/describe");
　　builder.setParameter("maxCandidates", "1");
　　//builder.setParameter("details", "{string}");
　　builder.setParameter("language", "en");
　　URI uri = builder.build();
　　HttpPost request = new HttpPost(uri);
　　request.setHeader("Content-Type", "application/octet-stream");
　　request.setHeader("Ocp-Apim-Subscription-Key", "<key>");
　　// Request body
　　String pic_path = "D:\\test.jpg";  //本地图片地址
　　System.out.println(pic_path);
　　FileInputStream is = new FileInputStream(pic_path);
　　int i = is.available(); // 得到文件大小  
　　byte data[] = new byte;
　　is.read(data); // 读数据  将数据读到data中               
　　is.close();
　　ByteArrayEntity bae = new ByteArrayEntity(data);                                       
　　request.setEntity(bae);  
　　HttpResponse response = httpclient.execute(request);
　　HttpEntity entity = response.getEntity();
　　if (entity != null)
　　{
　　System.out.println(EntityUtils.toString(entity));
　　}
　　}
　　catch (Exception e)
　　{
　　System.out.println(e.getMessage());
　　}
　　}
　　}