MinIO上传和下载文件及文件完整性校验.

天津储鑫盛钢材现货供应商 · 2024-10-25 12:23:00

package com.xuecheng.media;
import com.j256.simplemagic.ContentInfo;
import com.j256.simplemagic.ContentInfoUtil;
import io.minio.*;
import io.minio.errors.*;
import org.apache.commons.codec.digest.DigestUtils;
import org.apache.commons.io.IOUtils;
import org.junit.jupiter.api.Test;
import org.springframework.boot.test.context.SpringBootTest;
import org.springframework.http.MediaType;
import java.io.*;
import java.util.HashMap;
import java.util.Map;
/**
* 测试minio的sdk
*
* @author ManolinCoder
* @date 2024-10-21
*/
@SpringBootTest
public class MinioTest {
// MinIO服务器地址
String url = "http://localhost:9000";
// MinIO访问密钥
String accessKey = "accessKey";
// MinIO秘密密钥
String secretKey = "secretKey";
// 待上传的文件路径
String filePath = "/Users/lcm/Movies/测试视频/1.mp4";
// MinIO存储桶名称
String bucketName = "testbucket";
// 存储桶中的对象名称
String objectName = "1.mp4";
MinioClient minioClient = MinioClient.builder().endpoint(url).credentials(accessKey, secretKey).build();
/**
* 上传文件
*
* @param
* @return void
* @author ManolinCoder
* @date 2024-10-21
*/
@Test
public void testUpload() throws Exception {
ContentInfo extensionMatch = ContentInfoUtil.findExtensionMatch(".mp4");
String mimeType = MediaType.APPLICATION_OCTET_STREAM_VALUE; // 通用 mimeType 字节流
if (extensionMatch != null) {
mimeType = extensionMatch.getMimeType();
}
try {
// Make 'asiatrip' bucket if not exist.
boolean found = minioClient.bucketExists(BucketExistsArgs.builder().bucket("testbucket").build());
if (!found) {
// Make a new bucket called 'asiatrip'.
minioClient.makeBucket(MakeBucketArgs.builder().bucket("testbucket").build());
} else {
System.out.println("文件桶已存在！！！");
}
// 上传文件
uploadFile(minioClient, filePath, bucketName, objectName, mimeType);
//上传文件完整性校验
boolean flag = checkFileIntegrity(minioClient, filePath, bucketName, objectName);
System.out.println(flag ? "上传文件成功了！！！" : "上传文件失败了！！！");
} catch (MinioException e) {
System.out.println("Error occurred: " + e);
System.out.println("HTTP trace: " + e.httpTrace());
}
}
/**
* 删除文件
*
* @param
* @return void
* @author ManolinCoder
* @date 2024-10-21
*/
@Test
public void testDelete() throws Exception {
RemoveObjectArgs removeObjectArgs = RemoveObjectArgs.builder().bucket("testbucket").object("1.MP4").build();
minioClient.removeObject(removeObjectArgs);
}
/**
* 查询文件，下载到本地
*
* @param
* @return void
* @author ManolinCoder
* @date 2024-10-21
*/
@Test
public void testGetObject() throws Exception {
GetObjectArgs getObjectArgs = GetObjectArgs.builder().bucket("testbucket").object("1.MP4").build();
FilterInputStream inputStream = minioClient.getObject(getObjectArgs);
String localFileName = "/Users/lcm/Downloads/1.mp4";
// 指定输出流
FileOutputStream outputStream = new FileOutputStream(new File(localFileName));
IOUtils.copy(inputStream, outputStream);
// md5完整性校验
boolean flag = checkFileIntegrity(minioClient, localFileName, bucketName, objectName);
if (flag) {
System.out.println("下载成功了！！！");
} else {
System.out.println("下载失败了！！！");
}
}
/**
* 上传文件
*
* @param minioClient
* @param filePath
* @param bucketName
* @param objectName
* @param contentType
* @return void
* @author CoderManolin
* @date 2024-10-25
*/
public void uploadFile(MinioClient minioClient, String filePath, String bucketName, String objectName, String contentType) throws Exception {
// 计算上传前本地文件MD5
String uploadLocalFileMD5 = calculateMD5(filePath);
System.out.println("上传前本地文件MD5: uploadLocalFileMD5=" + uploadLocalFileMD5);
Map<String, String> md5Map = new HashMap<>();
md5Map.put("md5", uploadLocalFileMD5);
//上传文件到 MinIO
File file = new File(filePath);
minioClient.putObject(
PutObjectArgs.builder()
.bucket(bucketName)
.object(objectName)
.stream(new FileInputStream(file), file.length(), -1)
.userMetadata(md5Map)
.contentType(contentType)
.build()
);
System.out.println("File uploaded successfully: " + objectName);
}
/**
* 计算md5
*
* @param filePath
* @return File
* @author ManolinCoder
* @date 2024-10-23
*/
public String calculateMD5(String filePath) throws Exception {
FileInputStream fileInputStream = new FileInputStream(filePath);
return DigestUtils.md5Hex(fileInputStream);
}
/**
* 对比本地文件和minio文件的MD5值是否一致，校验文件完整性
*
* @param minioClient
* @param filePath
* @param bucketName
* @param objectName
* @return boolean
* @author CoderManolin
* @date 2024-10-25
*/
public boolean checkFileIntegrity(MinioClient minioClient, String filePath, String bucketName, String objectName) throws Exception {
// 计算本地文件的MD5
String localFileMD5 = calculateMD5(filePath);
System.out.println("Local file MD5: " + localFileMD5);
// 获取MinIO中对象的MD5
StatObjectResponse stat = minioClient.statObject(
StatObjectArgs.builder()
.bucket(bucketName)
.object(objectName)
.build());
String minioFileMD5 = stat.userMetadata().get("md5");
System.out.println("MinIO file MD5: " + minioFileMD5);
// 比较MD5值
return localFileMD5.equals(minioFileMD5);
}
}

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MinIO上传和下载文件及文件完整性校验.

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