基于java和minio实现分片上传的代码示例

好的，以下是基于Java和Minio实现分片上传的代码示例：

import io.minio.*;
import io.minio.errors.*;
import io.minio.messages.*;
import java.security.NoSuchAlgorithmException;
import java.io.*;

public class MinioUploader {
    private static String AWS_ACCESS_KEY = "your-access-key";
    private static String AWS_SECRET_KEY = "your-secret-key";
    private static String ENDPOINT = "http://localhost:9000";
    private static String BUCKET_NAME = "your-bucket-name";

    public static void main(String[] args) {
        try {
            // Initialize Minio client
            MinioClient client = new MinioClient.Builder()
                    .endpoint(ENDPOINT)
                    .credentials(AWS_ACCESS_KEY, AWS_SECRET_KEY)
                    .build();

            // Create bucket if it doesn't already exist
            if (!client.bucketExists(BUCKET_NAME)) {
                client.makeBucket(BUCKET_NAME);
            }

            // Set part size and file name
            long partSize = 5242880; // 5MB
            String fileName = "your-file-name";

            // Initiate multipart upload
            String uploadId = client.initiateMultipartUpload(BUCKET_NAME, fileName);

            // Upload each part
            InputStream inputStream = new FileInputStream(new File("your-file-path"));
            byte[] buffer = new byte[(int)partSize];
            int bytesRead = -1;
            int partNumber = 1;
            while ((bytesRead = inputStream.read(buffer)) != -1) {
                client.uploadPart(BUCKET_NAME, fileName, uploadId, partNumber, buffer, bytesRead);
                partNumber++;
            }

            // Complete multipart upload
            PartList parts = client.listParts(BUCKET_NAME, fileName, uploadId, null);
            client.completeMultipartUpload(BUCKET_NAME, fileName, uploadId, parts.getParts());

            System.out.println("File uploaded successfully!");

        } catch (Exception e) {
            System.out.println("Error occurred: " + e);
        }
    }
}

请注意，以上示例代码仅供参考，需要根据您的具体情况进行修改。