com.qcloud.cos.demo.PicOperationDemo Maven / Gradle / Ivy
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A single bundled dependency that includes all service and dependent JARs with third-party libraries
relocated to different namespaces.
package com.qcloud.cos.demo;
import com.qcloud.cos.COSClient;
import com.qcloud.cos.ClientConfig;
import com.qcloud.cos.auth.BasicCOSCredentials;
import com.qcloud.cos.auth.COSCredentials;
import com.qcloud.cos.exception.CosClientException;
import com.qcloud.cos.exception.CosServiceException;
import com.qcloud.cos.model.ObjectMetadata;
import com.qcloud.cos.model.PutObjectRequest;
import com.qcloud.cos.model.PutObjectResult;
import com.qcloud.cos.region.Region;
import java.io.File;
public class PicOperationDemo {
public static void main(String[] args) {
PicPersistentProcessing();
}
public static void PicPersistentProcessing() {
// 1 初始化用户身份信息(secretId, secretKey)
COSCredentials cred = new BasicCOSCredentials("SECRET_ID", "SECRET_KEY");
// 2 设置bucket的区域, COS地域的简称请参照 https://www.qcloud.com/document/product/436/6224
ClientConfig clientConfig = new ClientConfig(new Region("ap-guangzhou"));
// 3 生成cos客户端
COSClient cosclient = new COSClient(cred, clientConfig);
// 4. bucket名需包含appid
String bucketName = "examplebucket-1250000000";
String key = "example.jpg";
File localFile = new File("/data/example.jpg");
// 5.对图像进行持久化处理
ObjectMetadata objectMetadata = new ObjectMetadata();
objectMetadata.setHeader("Pic-Operations", "{\"is_pic_info\":1,\"rules\":[{\"fileid\":\"example.png\",\"rule\":\"imageView2/format/png\"}]}");
PutObjectRequest putObjectRequest = new PutObjectRequest(bucketName, key, localFile);
putObjectRequest.setMetadata(objectMetadata);
try {
PutObjectResult putObjectResult = cosclient.putObject(putObjectRequest);
// putobjectResult会返回文件的etag
String etag = putObjectResult.getETag();
} catch (CosServiceException e) {
e.printStackTrace();
} catch (CosClientException e) {
e.printStackTrace();
}
// 关闭客户端
cosclient.shutdown();
}
}
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