Upload image to S3

Upload-image-to-S3

import java.io.IOException;
import java.io.InputStream;
import org.springframework.web.multipart.MultipartFile;
import com.amazonaws.AmazonServiceException;
import com.amazonaws.auth.AWSCredentials;
import com.amazonaws.auth.BasicAWSCredentials;
import com.amazonaws.services.s3.AmazonS3;
import com.amazonaws.services.s3.AmazonS3Client;
import com.amazonaws.services.s3.model.CannedAccessControlList;
import com.amazonaws.services.s3.model.ObjectMetadata;
import com.amazonaws.services.s3.model.PutObjectRequest;
 
public class ImageS3Util {
    private static final String ACCESS_KEY = "xxx";
    private static final String SECRET_KEY = "xxx";
    private static final String END_POINT_URL = "xxx";// e.g http://s3.amazonaws.com
    private static final String BUCKET = "xxx";
    private static final String IMAGE_LOCATION = "xxx";
    private static final String S3_CACHE = "xxx"; // e.g 60
    private static AmazonS3 s3;
    public static void uploadImageToAWSS3(MultipartFile multipartFile) throws IllegalStateException,
               IOException {  String fileName = null;
        try {
            AWSCredentials credentials = new BasicAWSCredentials(ACCESS_KEY, SECRET_KEY);
            java.security.Security.setProperty("networkaddress.cache.ttl", S3_CACHE);
            s3 = new AmazonS3Client(credentials); s3.setEndpoint(END_POINT_URL);
            InputStream stream = multipartFile.getInputStream();
            fileName = System.currentTimeMillis() + "_" + fileName;
            ObjectMetadata objectMetadata = new ObjectMetadata();
            PutObjectRequest putObjectRequest = new PutObjectRequest(BUCKET, IMAGE_LOCATION + "/" + fileName, stream,objectMetadata);
            //skip if do not want to access the image directly from S3
            putObjectRequest.setCannedAcl(CannedAccessControlList.PublicRead); 
            //skip if do not want to access the image directly from S3
            s3.putObject(putObjectRequest);
          } catch (AmazonServiceException e) {
                e.printStackTrace()
        }
    }
}

      @RequestMapping(value = "/uploadImage", method = RequestMethod.POST)
      @ResponseBody
      public String uploadImage(@RequestParam("file") MultipartFile file,
          HttpServletRequest request){
              if (!file.isEmpty()) {
                  filePath = ImageS3Util.uploadImageToAWSS3(file);
              }
          return "view page";
      }
}