Save file to Amazon S3 using the AWS SDK for Java. - Java AWS

Java examples for AWS:S3

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Description

Save file to Amazon S3 using the AWS SDK for Java.

Demo Code

/*//  w  w  w  .  j a  v  a  2 s  .  c  om
 * Copyright 2010-2012 Amazon.com, Inc. or its affiliates. All Rights
 Reserved.
 *
 * Licensed under the Apache License, Version 2.0 (the "License").
 * You may not use this file except in compliance with the License.
 * A copy of the License is located at
 *
 *  http://aws.amazon.com/apache2.0
 *
 * or in the "license" file accompanying this file. This file is
 distributed
 * on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND,
 either
 * express or implied. See the License for the specific language
 governing
 * permissions and limitations under the License.
 */
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.OutputStreamWriter;
import java.io.Writer;

import com.amazonaws.AmazonClientException;
import com.amazonaws.AmazonServiceException;
import com.amazonaws.auth.PropertiesCredentials;
import com.amazonaws.services.s3.AmazonS3;
import com.amazonaws.services.s3.AmazonS3Client;
import com.amazonaws.services.s3.model.Bucket;
import com.amazonaws.services.s3.model.CannedAccessControlList;
import com.amazonaws.services.s3.model.PutObjectRequest;

/**
 * This sample demonstrates how to make basic requests to Amazon S3 using the
 * AWS SDK for Java.
 * <p>
 * <b>Prerequisites:</b> You must have a valid Amazon Web Services developer
 * account, and be signed up to use Amazon S3. For more information on Amazon
 * S3, see http://aws.amazon.com/s3.
 * <p>
 * <b>Important:</b> Be sure to fill in your AWS access credentials in the
 * AwsCredentials.properties file before you try to run this sample.
 * http://aws.amazon.com/security-credentials
 */
public class PutTestFile {

    public static void main(String[] args) throws IOException {
        /*
         * Important: Be sure to fill in your AWS access credentials in the
         * AwsCredentials.properties file before you try to run this sample.
         * http://aws.amazon.com/security-credentials
         */
        AmazonS3 s3 = new AmazonS3Client(new PropertiesCredentials(

        PutTestFile.class.getResourceAsStream("AwsCredentials.properties")));
        String bucketName = "dtccTest";

        String key = "largerfile.txt";

        System.out.println("------------------------------------------");
        System.out.println("Getting Started with Amazon S3");
        System.out.println("------------------------------------------\n");

        try {

            /*
             * List the buckets in your account
             */
            System.out.println("Listing buckets");
            for (Bucket bucket : s3.listBuckets()) {
                System.out.println(" - " + bucket.getName());
            }
            System.out.println();

            System.out
                    .println("Uploading a new object to S3 from a file\n");

            PutObjectRequest request = new PutObjectRequest(bucketName,
                    key, createSampleFile());
            request.setCannedAcl(CannedAccessControlList.PublicRead);
            s3.putObject(request);

        } catch (AmazonServiceException ase) {
            System.out
                    .println("Caught an AmazonServiceException, whichmeans your request made it "
                            + "to Amazon S3, but was rejected with an errorresponse for some reason.");
            System.out.println("Error Message:    " + ase.getMessage());
            System.out.println("HTTP Status Code: " + ase.getStatusCode());
            System.out.println("AWS Error Code:   " + ase.getErrorCode());
            System.out.println("Error Type:       " + ase.getErrorType());
            System.out.println("Request ID:       " + ase.getRequestId());
        } catch (AmazonClientException ace) {
            System.out
                    .println("Caught an AmazonClientException, whichmeans the client encountered "
                            + "a serious internal problem while trying tocommunicate with S3, "
                            + "such as not being able to access the network.");
            System.out.println("Error Message: " + ace.getMessage());
        }
    }

    /**
     * Creates a temporary file with text data to demonstrate uploading a file
     * to Amazon S3
     * 
     * @return A newly created temporary file with text data.
     * 
     * @throws IOException
     */
    private static File createSampleFile() throws IOException {
        File file = File.createTempFile("aws-java-sdk-", ".txt");
        file.deleteOnExit();

        Writer writer = new OutputStreamWriter(new FileOutputStream(file));
        for (int i = 1; i <= 10; i = i + 1) {

            writer.write("SPTest\n");
        }
        writer.close();

        return file;
    }

}

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