Java 连接到 Amazon S3 时出现 HttpHostConnection 拒绝错误

Getting HttpHostConnection refused error while connecting to Amazon S3

提问by user2956567

I am using java code to connect to amazon s3. I am getting HttpHostConnection refused error every time I try to connect to S3. On S3 I have only one bucket with all permissions to me as a owner. Whenever I try to list files in bucket or try to upload file on S3 I am getting error.

我正在使用 java 代码连接到亚马逊 s3。每次尝试连接到 S3 时，我都会收到 HttpHostConnection 拒绝错误。在 S3 上，我只有一个存储桶，我作为所有者拥有所有权限。每当我尝试在存储桶中列出文件或尝试在 S3 上上传文件时，我都会收到错误消息。

Code is as follows:

代码如下：

    TransferManager tx = new TransferManager(credentials);  
    Upload upload = tx.upload("bucket.name", doc.getFileName(),                 new File("C:\testing2.pdf"));   
    while (upload.isDone() == false) {     
       System.out.println(upload.getProgress().getPercentTransferred() + "%"); 
    } 




INFO [s3-transfer-manager-worker-1] (AmazonHttpClient.java434) - Unable to execute HTTP request: Connection to https://bucket.name.s3.amazonaws.com refused
   org.apache.http.conn.HttpHostConnectException: Connection to https://bucket.name.s3.amazonaws.com refused
    at org.apache.http.impl.conn.DefaultClientConnectionOperator.openConnection(DefaultClientConnectionOperator.java:190)
    at org.apache.http.impl.conn.ManagedClientConnectionImpl.open(ManagedClientConnectionImpl.java:294)
    at org.apache.http.impl.client.DefaultRequestDirector.tryConnect(DefaultRequestDirector.java:641)
    at org.apache.http.impl.client.DefaultRequestDirector.execute(DefaultRequestDirector.java:480)
    at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:906)
    at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:805)
    at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:784)
    at com.amazonaws.http.AmazonHttpClient.executeHelper(AmazonHttpClient.java:383)
    at com.amazonaws.http.AmazonHttpClient.execute0(AmazonHttpClient.java:266)
    at com.amazonaws.http.AmazonHttpClient.execute(AmazonHttpClient.java:236)
    at com.amazonaws.services.s3.AmazonS3Client.invoke(AmazonS3Client.java:3104)
    at com.amazonaws.services.s3.AmazonS3Client.putObject(AmazonS3Client.java:1233)
    at com.amazonaws.services.s3.transfer.internal.UploadCallable.uploadInOneChunk(UploadCallable.java:108)
    at com.amazonaws.services.s3.transfer.internal.UploadCallable.call(UploadCallable.java:100)
    at com.amazonaws.services.s3.transfer.internal.UploadMonitor.upload(UploadMonitor.java:192)
    at com.amazonaws.services.s3.transfer.internal.UploadMonitor.call(UploadMonitor.java:150)
    at com.amazonaws.services.s3.transfer.internal.UploadMonitor.call(UploadMonitor.java:50)
    at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:314)
    at java.util.concurrent.FutureTask.run(FutureTask.java:149)
    at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:897)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:919)
    at java.lang.Thread.run(Thread.java:736)
Caused by: java.net.ConnectException: Connection timed out: connect
    at java.net.PlainSocketImpl.socketConnect(Native Method)
    at java.net.PlainSocketImpl.doConnect(PlainSocketImpl.java:383)
    at java.net.PlainSocketImpl.connectToAddress(PlainSocketImpl.java:245)
    at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:232)
    at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:377)
    at java.net.Socket.connect(Socket.java:539)
    at com.ibm.jsse2.tc.connect(tc.java:397)
    at org.apache.http.conn.ssl.SSLSocketFactory.connectSocket(SSLSocketFactory.java:549)
    at org.apache.http.impl.conn.DefaultClientConnectionOperator.openConnection(DefaultClientConnectionOperator.java:180)
    ... 21 more 

回答by ippomakunochi

You may need to check your credentials if you have the correct ACCESS_KEY and SECRET_KEY to connect to AWS S3. You can get it via the Security Credentials in the IAM Management Console.

如果您有正确的 ACCESS_KEY 和 SECRET_KEY 连接到 AWS S3，您可能需要检查您的凭证。您可以通过 IAM 管理控制台中的安全凭证获取它。

回答by user2956567

After 2months struggle I found solution. Here we need to check proxy setttings from our network. I simply created ClientConfig and set proxy properties to this object. I used putObjectRequest method to upload object. Here is a code

经过2个月的斗争，我找到了解决方案。在这里，我们需要检查我们网络中的代理设置。我只是创建了 ClientConfig 并为这个对象设置了代理属性。我使用 putObjectRequest 方法上传对象。这是一个代码

ClientConfiguration clientConfig = new ClientConfiguration();
clientConfig.setProtocol(Protocol.HTTPS);
clientConfig.setProxyHost(ip_address);
clientConfig.setProxyPort(port number);
clientConfig.setProxyUsername(user id on network);
clientConfig.setProxyPassword(password on network);

AmazonS3 s3 = new AmazonS3Client(new BasicAWSCredentials("access key", "secret key"),
clientConfig);
file = new File(fileName);
PutObjectRequest putObject = new PutObjectRequest(bucketName, fileName, file);
ObjectMetadata metaData = new ObjectMetadata();
metaData.setContentType("application/pdf"); //binary data
putObject.setMetadata(metaData);
s3.putObject(putObject);

回答by David Beveridge

To augment the above answer, I've encountered this also due to routing/DNS issues (usually showing as a nested UnknownHostException)

为了补充上面的答案，我也因为路由/DNS 问题（通常显示为嵌套的 UnknownHostException）而遇到了这个问题

• do an nslookup of the s3 URI (e.g., nslookup s3.amazonaws.com)
• if you're on a VPN, make sure it's actually working (since many can show "active" while being hung up on the remote end, especially on VMs). an incorrect/failed nslookup should show this as well

• 对 s3 URI 进行 nslookup（例如，nslookup s3.amazonaws.com）
• 如果您使用的是 VPN，请确保它确实在工作（因为许多在远程端挂断时会显示“活动”，尤其是在 VM 上）。不正确/失败的 nslookup 也应该显示这一点

回答by Georgiana

In my case, it was a proxy problem. On the TS3Connection component, in Advanced settings i have checked config client with the client parameters: Proxy Host,Proxy Port and it worked

就我而言，这是一个代理问题。在 TS3Connection 组件上，在高级设置中，我使用客户端参数检查了配置客户端：代理主机、代理端口并且它工作正常

回答by Gene

When you setup your AmazonS3objects, you pass in a ClientConfigurationobject.

当你设置你的AmazonS3对象时，你传入一个ClientConfiguration对象。

For example:

例如：

ClientConfiguration clientConfig = new ClientConfiguration();
clientConfig.withProtocol(Protocol.HTTPS);
clientConfig.withProxyHost(ip_address);
clientConfig.withProxyPort(port number);
clientConfig.withProxyUsername(user id on network);
clientConfig.withProxyPassword(password on network);

AmazonS3 s3Client= AmazonS3ClientBuilder.standard().withClientConfiguration(clientConfig)...;

AmazonS3 s3Client= AmazonS3ClientBuilder.standard().withClientConfiguration(clientConfig)...;

You have the .withProxyHost() value wrong.

您的 .withProxyHost() 值错误。