<dependency>
         <groupId>com.aliyun</groupId>
         <artifactId>aliyun-java-sdk-core</artifactId>
         <version>4.5.16</version>
     </dependency>
     <dependency>
         <groupId>com.aliyun</groupId>
         <artifactId>aliyun-java-sdk-iot</artifactId>
         <version>7.20.0</version>
     </dependency>
     
     
      <dependency>
            <groupId>org.apache.httpcomponents</groupId>
            <artifactId>httpclient</artifactId>
            <version>4.5.3</version>
        </dependency>

        <dependency>
            <groupId>org.apache.httpcomponents</groupId>
            <artifactId>httpmime</artifactId>
            <version>4.5.10</version>
        </dependency>

import com.aliyuncs.DefaultAcsClient;
import com.aliyuncs.IAcsClient;
import com.aliyuncs.exceptions.ClientException;
import com.aliyuncs.iot.model.v20180120.GenerateOTAUploadURLRequest;
import com.aliyuncs.iot.model.v20180120.GenerateOTAUploadURLResponse;
import com.aliyuncs.profile.DefaultProfile;
import com.google.gson.Gson;
import lombok.extern.slf4j.Slf4j;
import org.apache.http.HttpEntity;
import org.apache.http.client.methods.CloseableHttpResponse;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.entity.ContentType;
import org.apache.http.entity.mime.MultipartEntityBuilder;
import org.apache.http.impl.client.CloseableHttpClient;
import org.apache.http.impl.client.HttpClients;
import org.junit.Test;

import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStream;

/**
 * @Author: gj
 * @Date: 2021/2/10  14:36
 * @Version 1.0
 */

@Slf4j
public class Demo {



    @Test
    public void postObject() throws IOException, ClientException {


        DefaultProfile profile = DefaultProfile.getProfile("cn-shanghai", "LTAIlUxNzwkVzyli", "y9oXEKt2Nk6umvUSNdarZKkgpFchY4");
        IAcsClient client = new DefaultAcsClient(profile);

        GenerateOTAUploadURLRequest request = new GenerateOTAUploadURLRequest();
        request.setFileSuffix("zip");

        GenerateOTAUploadURLResponse response = client.getAcsResponse(request);
        System.out.println(new Gson().toJson(response));


        String key=response.getData().getKey();
        String host=response.getData().getHost();
        String policy=response.getData().getPolicy();
        String ossAccessKeyId=response.getData().getOSSAccessKeyId();
        String signature=response.getData().getSignature();

                //上面是获取参数
        

        InputStream in = new FileInputStream(new File(Demo.class.getClassLoader().getResource("build.zip").getPath()));

        byte[] buf = new byte[2048]; //数据中转站 临时缓冲区
        int length = 0;
        //循环读取文件内容，输入流中将最多buf.length个字节的数据读入一个buf数组中,返回类型是读取到的字节数。
        //当文件读取到结尾时返回 -1,循环结束。
        while((length = in.read(buf)) != -1){
//            System.out.println(new String(buf, 0, length));
        }

        CloseableHttpClient httpClient = HttpClients.createDefault();
        HttpPost uploadFile = new HttpPost(host);

        MultipartEntityBuilder builder = MultipartEntityBuilder.create();
        builder.addTextBody("key", key, ContentType.TEXT_PLAIN);
        builder.addTextBody("policy", policy, ContentType.TEXT_PLAIN);
        builder.addTextBody("OSSAccessKeyId", ossAccessKeyId, ContentType.TEXT_PLAIN);
        builder.addTextBody("signature", signature, ContentType.TEXT_PLAIN);
        builder.addTextBody("success_action_status", "200", ContentType.TEXT_PLAIN);
        builder.addBinaryBody("file", buf);

        HttpEntity multipart = builder.build();
        uploadFile.setEntity(multipart);
        CloseableHttpResponse response11 = httpClient.execute(uploadFile);

        log.info(new Gson().toJson(response11));
    }


}