亚马逊s3存储工具类java实现批量上传文件

以下是使用Java语言实现批量上传文件到AWS S3存储的示例代码：

import java.io.File;
import java.util.List;

import com.amazonaws.AmazonServiceException;
import com.amazonaws.SdkClientException;
import com.amazonaws.auth.DefaultAWSCredentialsProviderChain;
import com.amazonaws.client.builder.AwsClientBuilder;
import com.amazonaws.services.s3.AmazonS3;
import com.amazonaws.services.s3.AmazonS3ClientBuilder;
import com.amazonaws.services.s3.model.PutObjectRequest;

public class S3Util {

    private static final String S3_ENDPOINT = "your-s3-endpoint-url";
    private static final String S3_REGION = "your-s3-region";
    private static final String S3_ACCESS_KEY = "your-s3-access-key";
    private static final String S3_SECRET_KEY = "your-s3-secret-key";
    private static final String S3_BUCKET_NAME = "your-s3-bucket-name";

    public static void uploadFiles(List<File> files) {

        AmazonS3 s3Client = AmazonS3ClientBuilder.standard()
                .withEndpointConfiguration(new AwsClientBuilder.EndpointConfiguration(S3_ENDPOINT, S3_REGION))
                .withCredentials(new DefaultAWSCredentialsProviderChain())
                .build();

        try {
            for (File file : files) {
                String key = file.getName();
                PutObjectRequest request = new PutObjectRequest(S3_BUCKET_NAME, key, file);
                s3Client.putObject(request);
            }
        } catch (AmazonServiceException e) {
            e.printStackTrace();
        } catch (SdkClientException e) {
            e.printStackTrace();
        }

    }
}

使用时，只需传入需要上传的文件列表即可：

List<File> files = new ArrayList<>();
files.add(new File("file1"));
files.add(new File("file2"));
S3Util.uploadFiles(files);

在上述代码中，我们使用了AWS SDK的`AmazonS3`客户端，通过`withEndpointConfiguration`方法设置S3的Endpoint URL和Region，`withCredentials`方法设置S3的Access Key和Secret Key，`build`方法创建S3客户端。在上传文件时，我们使用了`PutObjectRequest`对象，其中包含了需要上传的文件、存储桶名称和对象名称，通过`putObject`方法将文件上传到S3存储中。

希望对你有所帮助！