Springboot集成Amazon-S3对象存储桶与工具类实现

import com.amazonaws.auth.AWSCredentials;
import com.amazonaws.auth.BasicAWSCredentials;
import com.amazonaws.regions.Regions;
import com.amazonaws.services.s3.AmazonS3;
import com.amazonaws.services.s3.AmazonS3ClientBuilder;
import com.amazonaws.services.s3.model.PutObjectRequest;
import com.amazonaws.services.s3.model.S3Object;
import com.amazonaws.services.s3.model.S3ObjectInputStream;
import java.io.ByteArrayInputStream;
import java.io.IOException;
 
public class AwsS3Util {
 
    private static final String ACCESS_KEY = "your-access-key-id";
    private static final String SECRET_KEY = "your-secret-access-key";
    private static final String BUCKET_NAME = "your-bucket-name";
    private static final Regions region = Regions.US_EAST_1;
 
    private static final AWSCredentials credentials = new BasicAWSCredentials(ACCESS_KEY, SECRET_KEY);
    private static final AmazonS3 s3client = AmazonS3ClientBuilder.standard()
            .withRegion(region)
            .withCredentials(new AWSStaticCredentialsProvider(credentials))
            .build();
 
    public static void uploadFileToS3(String fileName, byte[] fileContent) {
        ByteArrayInputStream bis = new ByteArrayInputStream(fileContent);
        PutObjectRequest request = new PutObjectRequest(BUCKET_NAME, fileName, bis, null);
        s3client.putObject(request);
        try {
            bis.close();
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
 
    public static byte[] downloadFileFromS3(String fileName) {
        S3Object s3object = s3client.getObject(BUCKET_NAME, fileName);
        S3ObjectInputStream s3is = s3object.getObjectContent();
        byte[] fileContent = new byte[0];
        try {
            fileContent = new byte[s3is.available()];
            s3is.read(fileContent);
        } catch (IOException e) {
            e.printStackTrace();
        }
        return fileContent;
    }
}

这个代码实例提供了一个简单的工具类，用于与Amazon S3进行交互。它包括上传和下载文件的方法，并且使用静态初始化配置了Amazon S3客户端。在实际应用中，你需要替换your-access-key-id、your-secret-access-key和your-bucket-name为你的AWS凭证和桶名称。此外，你可以根据需要调整代码，例如添加异常处理和日志记录。