使用java实现文件分钱上传,断点续传,将文件上传至Minio服务器中,写出代码实现
时间: 2023-08-31 19:32:32 浏览: 289
### 回答1:
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.util.Properties;
import io.minio.MinioClient;public class FileUpload {
public static void main(String[] args) throws IOException {
// 从配置文件读取minio服务器的地址和端口号
String minioServerUrl = "";
String minioServerPort = "";
InputStream inputStream = new FileInputStream("config.properties");
Properties prop = new Properties();
prop.load(inputStream);
minioServerUrl = prop.getProperty("minioServerUrl");
minioServerPort = prop.getProperty("minioServerPort");
// 初始化minio客户端
MinioClient minioClient = new MinioClient(minioServerUrl, minioServerPort);
// 获取本地文件
File localFile = new File("MyFile.txt");
// 获取文件的长度,用于断点续传
long fileSize = localFile.length();
// 文件分片上传,每次上传的大小必须是8M的整数倍
long partSize = 8 * 1024 * 1024;
String bucketName = "mybucket";
String objectName = "MyFile.txt";
// 创建分片上传的任务
minioClient.putObject(bucketName, objectName, localFile.getAbsolutePath(), fileSize, partSize);
}
}
### 回答2:
使用Java实现文件分块上传和断点续传的基本步骤如下:
1. 引入Minio SDK:首先需要将Minio SDK引入项目的依赖中,可以在项目的pom.xml文件中添加相应的依赖。
```xml
<dependency>
<groupId>io.minio</groupId>
<artifactId>minio</artifactId>
<version>8.2.5</version>
</dependency>
```
2. 创建Minio客户端:通过Minio SDK提供的API创建Minio服务器的连接。
```java
import io.minio.MinioClient;
public class FileUploader {
private static final String ENDPOINT = "https://minio.example.com";
private static final String ACCESS_KEY = "your-access-key";
private static final String SECRET_KEY = "your-secret-key";
public static void main(String[] args) {
MinioClient minioClient = MinioClient.builder()
.endpoint(ENDPOINT)
.credentials(ACCESS_KEY, SECRET_KEY)
.build();
// 以下为文件分块上传和断点续传的具体实现
// ...
}
}
```
3. 文件分块上传:使用Minio SDK提供的`putObject`方法将文件分块上传至Minio服务器。
```java
import io.minio.PutObjectArgs;
public class FileUploader {
// ...
public static void main(String[] args) {
// ...
try {
minioClient.putObject(
PutObjectArgs.builder()
.bucket("bucketName")
.object("fileName")
.filename("localFilePath")
.build());
System.out.println("File uploaded successfully");
} catch (Exception e) {
System.out.println("Error uploading file: " + e.getMessage());
}
}
}
```
4. 断点续传:如果上传过程中断开连接,可以记录已上传的文件块位置,并在恢复后从断点处继续上传。
```java
import io.minio.PutObjectOptions;
public class FileUploader {
// ...
public static void main(String[] args) {
// ...
String bucketName = "bucketName";
String objectName = "fileName";
String localFilePath = "localFilePath";
String etag = null;
try {
// 获取已上传文件的etag
etag = minioClient.statObject(bucketName, objectName).etag();
} catch (Exception e) {
// 文件不存在,从头开始上传
System.out.println("File not found, uploading from beginning");
try {
minioClient.putObject(
PutObjectArgs.builder()
.bucket(bucketName)
.object(objectName)
.filename(localFilePath)
.build());
System.out.println("File uploaded successfully");
} catch (Exception ex) {
System.out.println("Error uploading file: " + ex.getMessage());
}
}
if (etag != null) {
// 断点续传
try {
minioClient.putObject(
PutObjectArgs.builder()
.bucket(bucketName)
.object(objectName)
.filename(localFilePath)
.headers(new HashMap<>())
.build(),
PutObjectOptions.builder().setHeader("If-Match", etag).build());
System.out.println("File uploaded successfully");
} catch (Exception ex) {
System.out.println("Error uploading file: " + ex.getMessage());
}
}
}
}
```
以上为使用Java实现文件分块上传和断点续传,并将文件上传至Minio服务器的基本代码实现。根据具体需求,可以根据Minio SDK的API进行更加详细的配置和异常处理。
阅读全文