java Amazon CloudWatch API未返回

Question

我有以下API调用无法返回的代码（精简）片段

AmazonCloudWatchAsyncClient awsClient
    = new AmazonCloudWatchAsyncClient(accesskey, secretkey);
...
logger.info("Before putMetricDataAsync");
awsClient.putMetricDataAsync(req, asynchndl);
logger.info("After putMetricDataAsync"); // not showing
...

我怀疑可能是因为离岸服务器上的防火墙问题。有人知道API连接到哪里（即主机+端口）吗？任何帮助或想法都将不胜感激

提前谢谢

Answer 1

Aws sdk通常是开源的，因此您可以自己查看-https://github.com/aws/aws-sdk-java/blob/master/aws-java-sdk-cloudwatch/src/main/java/com/amazonaws/services/cloudwatch/AmazonCloudWatchAsyncClient.java