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118 lines
4.2 KiB
Markdown
118 lines
4.2 KiB
Markdown
# MinIO Java SDK for Amazon S3 Compatible Cloud Storage [](https://slack.min.io)
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MinIO Java SDK is Simple Storage Service (aka S3) client to perform bucket and object operations to any Amazon S3 compatible object storage service.
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For a complete list of APIs and examples, please take a look at the [Java Client API Reference](https://docs.min.io/docs/java-client-api-reference) documentation.
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## Minimum Requirements
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Java 1.8 or above.
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## Maven usage
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```xml
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<dependency>
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<groupId>io.minio</groupId>
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<artifactId>minio</artifactId>
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<version>8.4.2</version>
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</dependency>
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```
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## Gradle usage
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```
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dependencies {
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implementation("io.minio:minio:8.4.2")
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}
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```
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## JAR download
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The latest JAR can be downloaded from [here](https://repo1.maven.org/maven2/io/minio/minio/8.4.2/)
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## Quick Start Example - File Uploader
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This example program connects to an object storage server, makes a bucket on the server and then uploads a file to the bucket.
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You need three items in order to connect to an object storage server.
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| Parameters | Description |
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|------------|------------------------------------------------------------|
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| Endpoint | URL to S3 service. |
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| Access Key | Access key (aka user ID) of an account in the S3 service. |
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| Secret Key | Secret key (aka password) of an account in the S3 service. |
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This example uses MinIO server playground [https://play.min.io](https://play.min.io). Feel free to use this service for test and development.
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### FileUploader.java
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```java
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import io.minio.BucketExistsArgs;
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import io.minio.MakeBucketArgs;
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import io.minio.MinioClient;
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import io.minio.UploadObjectArgs;
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import io.minio.errors.MinioException;
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import java.io.IOException;
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import java.security.InvalidKeyException;
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import java.security.NoSuchAlgorithmException;
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public class FileUploader {
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public static void main(String[] args)
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throws IOException, NoSuchAlgorithmException, InvalidKeyException {
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try {
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// Create a minioClient with the MinIO server playground, its access key and secret key.
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MinioClient minioClient =
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MinioClient.builder()
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.endpoint("https://play.min.io")
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.credentials("Q3AM3UQ867SPQQA43P2F", "zuf+tfteSlswRu7BJ86wekitnifILbZam1KYY3TG")
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.build();
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// Make 'asiatrip' bucket if not exist.
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boolean found =
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minioClient.bucketExists(BucketExistsArgs.builder().bucket("asiatrip").build());
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if (!found) {
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// Make a new bucket called 'asiatrip'.
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minioClient.makeBucket(MakeBucketArgs.builder().bucket("asiatrip").build());
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} else {
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System.out.println("Bucket 'asiatrip' already exists.");
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}
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// Upload '/home/user/Photos/asiaphotos.zip' as object name 'asiaphotos-2015.zip' to bucket
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// 'asiatrip'.
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minioClient.uploadObject(
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UploadObjectArgs.builder()
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.bucket("asiatrip")
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.object("asiaphotos-2015.zip")
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.filename("/home/user/Photos/asiaphotos.zip")
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.build());
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System.out.println(
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"'/home/user/Photos/asiaphotos.zip' is successfully uploaded as "
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+ "object 'asiaphotos-2015.zip' to bucket 'asiatrip'.");
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} catch (MinioException e) {
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System.out.println("Error occurred: " + e);
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System.out.println("HTTP trace: " + e.httpTrace());
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}
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}
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}
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```
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#### Compile FileUploader
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```sh
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$ javac -cp minio-8.4.2-all.jar FileUploader.java
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```
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#### Run FileUploader
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```sh
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$ java -cp minio-8.4.2-all.jar:. FileUploader
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'/home/user/Photos/asiaphotos.zip' is successfully uploaded as object 'asiaphotos-2015.zip' to bucket 'asiatrip'.
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$ mc ls play/asiatrip/
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[2016-06-02 18:10:29 PDT] 82KiB asiaphotos-2015.zip
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```
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## More References
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* [Java Client API Reference](https://docs.min.io/docs/java-client-api-reference)
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* [Javadoc](https://minio-java.min.io/)
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* [Examples](https://github.com/minio/minio-java/tree/release/examples)
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## Explore Further
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* [Complete Documentation](https://docs.min.io)
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* [Build your own Photo API Service - Full Application Example ](https://github.com/minio/minio-java-rest-example)
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## Contribute
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Please refer [Contributors Guide](https://github.com/minio/minio-java/blob/release/CONTRIBUTING.md)
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