Amazon SQS Extended Client Library不能直接支持将S3上传的文件压缩,需要通过使用Java中的GZIP类进行手动压缩并上传压缩文件。以下是一个基本的示例代码:
import com.amazonaws.services.sqs.buffered.QueueBufferConfig;
import com.amazonaws.services.sqs.buffered.SqsBufferedAsyncClient;
import com.amazonaws.services.sqs.model.SendMessageRequest;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.nio.ByteBuffer;
import java.util.zip.GZIPOutputStream;
public class SqsClientWithGzip {
// AWS SQS client and queue URL
private final SqsBufferedAsyncClient sqsClient;
private final String queueUrl;
public SqsClientWithGzip(SqsBufferedAsyncClient sqsClient, String queueUrl) {
this.sqsClient = sqsClient;
this.queueUrl = queueUrl;
}
public void sendMessageWithGzip(String message) throws IOException {
// GZIP the message bytes
ByteArrayOutputStream byteOutput = new ByteArrayOutputStream();
try (GZIPOutputStream gzipOutput = new GZIPOutputStream(byteOutput)) {
gzipOutput.write(message.getBytes());
}
// Get the compressed message bytes and convert to ByteBuffer
ByteBuffer compressedMessage = ByteBuffer.wrap(byteOutput.toByteArray());
// Send the compressed message to SQS
SendMessageRequest sendMessageRequest = new SendMessageRequest()
.withQueueUrl(queueUrl)
.withMessageBody(new String(compressedMessage.array()))
.withMessageGroupId("group-1")
.withMessageDeduplicationId("dedupe-1");
sqsClient.sendMessage(sendMessageRequest);
}
public static void main(String[] args) throws IOException {
// Create Amazon SQS client and queue URL
SqsBufferedAsyncClient sqsClient = SqsBufferedAsyncClient.builder().build();
String queueUrl = "https://sqs.us-west-2.amazonaws.com/123456789012/myGzipQueue";
// Create an instance of SqsClientWithGzip and send a message with GZIP compression
SqsClientWithGzip sqs