amazon s3 java.net.ConnectException: Connection refused

1，问题描述

（1）通过java api 调用ceph s3 接口中遇到的如下问题：

2013-1-8 21:59:44 com.amazonaws.http.AmazonHttpClient executeHelper
信息: Unable to execute HTTP request: Connection to https://192.168.0.19 refused
org.apache.http.conn.HttpHostConnectException: Connection to https://192.168.0.19 refused
    at org.apache.http.impl.conn.DefaultClientConnectionOperator.openConnection(DefaultClientConnectionOperator.java:190)
    at org.apache.http.impl.conn.AbstractPoolEntry.open(AbstractPoolEntry.java:151)
    at org.apache.http.impl.conn.AbstractPooledConnAdapter.open(AbstractPooledConnAdapter.java:125)
    at org.apache.http.impl.client.DefaultRequestDirector.tryConnect(DefaultRequestDirector.java:640)
    at org.apache.http.impl.client.DefaultRequestDirector.execute(DefaultRequestDirector.java:479)
    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:280)
    at com.amazonaws.http.AmazonHttpClient.execute(AmazonHttpClient.java:165)
    at com.amazonaws.services.s3.AmazonS3Client.invoke(AmazonS3Client.java:2949)
    at com.amazonaws.services.s3.AmazonS3Client.invoke(AmazonS3Client.java:2921)
    at com.amazonaws.services.s3.AmazonS3Client.listBuckets(AmazonS3Client.java:499)
    at com.amazonaws.services.s3.AmazonS3Client.listBuckets(AmazonS3Client.java:507)
    at haha.main(haha.java:30)
Caused by: java.net.ConnectException: Connection refused
    at java.net.PlainSocketImpl.socketConnect(Native Method)
    at java.net.PlainSocketImpl.doConnect(PlainSocketImpl.java:333)
    at java.net.PlainSocketImpl.connectToAddress(PlainSocketImpl.java:195)
    at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:182)
    at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:366)
    at java.net.Socket.connect(Socket.java:529)
    at com.sun.net.ssl.internal.ssl.SSLSocketImpl.connect(SSLSocketImpl.java:550)
    at org.apache.http.conn.ssl.SSLSocketFactory.connectSocket(SSLSocketFactory.java:549)
    at org.apache.http.impl.conn.DefaultClientConnectionOperator.openConnection(DefaultClientConnectionOperator.java:180)
    ... 14 more
2013-1-8 21:59:45 com.amazonaws.http.AmazonHttpClient executeHelper
信息: Unable to execute HTTP request: Connection to https://192.168.0.19 refused
org.apache.http.conn.HttpHostConnectException: Connection to https://192.168.0.19 refused
    at org.apache.http.impl.conn.DefaultClientConnectionOperator.openConnection(DefaultClientConnectionOperator.java:190)
    at org.apache.http.impl.conn.AbstractPoolEntry.open(AbstractPoolEntry.java:151)
    at org.apache.http.impl.conn.AbstractPooledConnAdapter.open(AbstractPooledConnAdapter.java:125)
    at org.apache.http.impl.client.DefaultRequestDirector.tryConnect(DefaultRequestDirector.java:640)
    at org.apache.http.impl.client.DefaultRequestDirector.execute(DefaultRequestDirector.java:479)
    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:280)
    at com.amazonaws.http.AmazonHttpClient.execute(AmazonHttpClient.java:165)
    at com.amazonaws.services.s3.AmazonS3Client.invoke(AmazonS3Client.java:2949)
    at com.amazonaws.services.s3.AmazonS3Client.invoke(AmazonS3Client.java:2921)
    at com.amazonaws.services.s3.AmazonS3Client.listBuckets(AmazonS3Client.java:499)
    at com.amazonaws.services.s3.AmazonS3Client.listBuckets(AmazonS3Client.java:507)
    at haha.main(haha.java:30)
Caused by: java.net.ConnectException: Connection refused
    at java.net.PlainSocketImpl.socketConnect(Native Method)
    at java.net.PlainSocketImpl.doConnect(PlainSocketImpl.java:333)
    at java.net.PlainSocketImpl.connectToAddress(PlainSocketImpl.java:195)
    at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:182)
    at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:366)
    at java.net.Socket.connect(Socket.java:529)
    at com.sun.net.ssl.internal.ssl.SSLSocketImpl.connect(SSLSocketImpl.java:550)
    at org.apache.http.conn.ssl.SSLSocketFactory.connectSocket(SSLSocketFactory.java:549)
    at org.apache.http.impl.conn.DefaultClientConnectionOperator.openConnection(DefaultClientConnectionOperator.java:180)
    ... 14 more
2013-1-8 21:59:46 com.amazonaws.http.AmazonHttpClient executeHelper
信息: Unable to execute HTTP request: Connection to https://192.168.0.19 refused
org.apache.http.conn.HttpHostConnectException: Connection to https://192.168.0.19 refused
    at org.apache.http.impl.conn.DefaultClientConnectionOperator.openConnection(DefaultClientConnectionOperator.java:190)
    at org.apache.http.impl.conn.AbstractPoolEntry.open(AbstractPoolEntry.java:151)
    at org.apache.http.impl.conn.AbstractPooledConnAdapter.open(AbstractPooledConnAdapter.java:125)
    at org.apache.http.impl.client.DefaultRequestDirector.tryConnect(DefaultRequestDirector.java:640)
    at org.apache.http.impl.client.DefaultRequestDirector.execute(DefaultRequestDirector.java:479)
    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:280)
    at com.amazonaws.http.AmazonHttpClient.execute(AmazonHttpClient.java:165)
    at com.amazonaws.services.s3.AmazonS3Client.invoke(AmazonS3Client.java:2949)
    at com.amazonaws.services.s3.AmazonS3Client.invoke(AmazonS3Client.java:2921)
    at com.amazonaws.services.s3.AmazonS3Client.listBuckets(AmazonS3Client.java:499)
    at com.amazonaws.services.s3.AmazonS3Client.listBuckets(AmazonS3Client.java:507)
    at haha.main(haha.java:30)
Caused by: java.net.ConnectException: Connection refused
    at java.net.PlainSocketImpl.socketConnect(Native Method)
    at java.net.PlainSocketImpl.doConnect(PlainSocketImpl.java:333)
    at java.net.PlainSocketImpl.connectToAddress(PlainSocketImpl.java:195)
    at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:182)
    at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:366)
    at java.net.Socket.connect(Socket.java:529)
    at com.sun.net.ssl.internal.ssl.SSLSocketImpl.connect(SSLSocketImpl.java:550)
    at org.apache.http.conn.ssl.SSLSocketFactory.connectSocket(SSLSocketFactory.java:549)
    at org.apache.http.impl.conn.DefaultClientConnectionOperator.openConnection(DefaultClientConnectionOperator.java:180)
    ... 14 more
2013-1-8 21:59:49 com.amazonaws.http.AmazonHttpClient executeHelper
信息: Unable to execute HTTP request: Connection to https://192.168.0.19 refused
org.apache.http.conn.HttpHostConnectException: Connection to https://192.168.0.19 refused
    at org.apache.http.impl.conn.DefaultClientConnectionOperator.openConnection(DefaultClientConnectionOperator.java:190)
    at org.apache.http.impl.conn.AbstractPoolEntry.open(AbstractPoolEntry.java:151)
    at org.apache.http.impl.conn.AbstractPooledConnAdapter.open(AbstractPooledConnAdapter.java:125)
    at org.apache.http.impl.client.DefaultRequestDirector.tryConnect(DefaultRequestDirector.java:640)
    at org.apache.http.impl.client.DefaultRequestDirector.execute(DefaultRequestDirector.java:479)
    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:280)
    at com.amazonaws.http.AmazonHttpClient.execute(AmazonHttpClient.java:165)
    at com.amazonaws.services.s3.AmazonS3Client.invoke(AmazonS3Client.java:2949)
    at com.amazonaws.services.s3.AmazonS3Client.invoke(AmazonS3Client.java:2921)
    at com.amazonaws.services.s3.AmazonS3Client.listBuckets(AmazonS3Client.java:499)
    at com.amazonaws.services.s3.AmazonS3Client.listBuckets(AmazonS3Client.java:507)
    at haha.main(haha.java:30)
Caused by: java.net.ConnectException: Connection refused
    at java.net.PlainSocketImpl.socketConnect(Native Method)
    at java.net.PlainSocketImpl.doConnect(PlainSocketImpl.java:333)
    at java.net.PlainSocketImpl.connectToAddress(PlainSocketImpl.java:195)
    at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:182)
    at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:366)
    at java.net.Socket.connect(Socket.java:529)
    at com.sun.net.ssl.internal.ssl.SSLSocketImpl.connect(SSLSocketImpl.java:550)
    at org.apache.http.conn.ssl.SSLSocketFactory.connectSocket(SSLSocketFactory.java:549)
    at org.apache.http.impl.conn.DefaultClientConnectionOperator.openConnection(DefaultClientConnectionOperator.java:180)
    ... 14 more
Exception in thread "main" com.amazonaws.AmazonClientException: Unable to execute HTTP request: Connection to https://192.168.0.19 refused
    at com.amazonaws.http.AmazonHttpClient.executeHelper(AmazonHttpClient.java:328)
    at com.amazonaws.http.AmazonHttpClient.execute(AmazonHttpClient.java:165)
    at com.amazonaws.services.s3.AmazonS3Client.invoke(AmazonS3Client.java:2949)
    at com.amazonaws.services.s3.AmazonS3Client.invoke(AmazonS3Client.java:2921)
    at com.amazonaws.services.s3.AmazonS3Client.listBuckets(AmazonS3Client.java:499)
    at com.amazonaws.services.s3.AmazonS3Client.listBuckets(AmazonS3Client.java:507)
    at haha.main(haha.java:30)
Caused by: org.apache.http.conn.HttpHostConnectException: Connection to https://192.168.0.19 refused
    at org.apache.http.impl.conn.DefaultClientConnectionOperator.openConnection(DefaultClientConnectionOperator.java:190)
    at org.apache.http.impl.conn.AbstractPoolEntry.open(AbstractPoolEntry.java:151)
    at org.apache.http.impl.conn.AbstractPooledConnAdapter.open(AbstractPooledConnAdapter.java:125)
    at org.apache.http.impl.client.DefaultRequestDirector.tryConnect(DefaultRequestDirector.java:640)
    at org.apache.http.impl.client.DefaultRequestDirector.execute(DefaultRequestDirector.java:479)
    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:280)
    ... 6 more
Caused by: java.net.ConnectException: Connection refused
    at java.net.PlainSocketImpl.socketConnect(Native Method)
    at java.net.PlainSocketImpl.doConnect(PlainSocketImpl.java:333)
    at java.net.PlainSocketImpl.connectToAddress(PlainSocketImpl.java:195)
    at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:182)
    at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:366)
    at java.net.Socket.connect(Socket.java:529)
    at com.sun.net.ssl.internal.ssl.SSLSocketImpl.connect(SSLSocketImpl.java:550)
    at org.apache.http.conn.ssl.SSLSocketFactory.connectSocket(SSLSocketFactory.java:549)
    at org.apache.http.impl.conn.DefaultClientConnectionOperator.openConnection(DefaultClientConnectionOperator.java:180)
    ... 14 more

（2）源代码：

import java.io.ByteArrayInputStream;
import java.io.File;
import java.util.List;
import com.amazonaws.auth.AWSCredentials;
import com.amazonaws.auth.BasicAWSCredentials;
import com.amazonaws.util.StringUtils;
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.GeneratePresignedUrlRequest;
import com.amazonaws.services.s3.model.GetObjectRequest;
import com.amazonaws.services.s3.model.ObjectListing;
import com.amazonaws.services.s3.model.ObjectMetadata;
import com.amazonaws.services.s3.model.S3ObjectSummary;
public class haha {

	/**
	 * @param args
	 */
	public static void main(String[] args) {
		// TODO Auto-generated method stub
		String accessKey = "R3949EV1BHELWIZXKGJR";
		String secretKey = "fmimw6JPDApNC5r+iYknX7JXsvBu8DON3J24Sk1A";

		AWSCredentials credentials = new BasicAWSCredentials(accessKey, secretKey);
		AmazonS3 conn = new AmazonS3Client(credentials);
		//conn.setEndpoint("objects.dreamhost.com");
		conn.setEndpoint("192.168.0.19");
		List<Bucket> buckets = conn.listBuckets();
		for (Bucket bucket : buckets) {
		        System.out.println(bucket.getName() + "\t" +
		                StringUtils.fromDate(bucket.getCreationDate()));
		}
	}

}

（3）library

2，解决办法

    根据错误提示在google出了各种提示信息，其中一个有用的是开放http的80端口，按照这个提示做了之后，又提示如下错误：

2013-1-8 22:09:34 com.amazonaws.http.AmazonHttpClient executeHelper
信息: Unable to execute HTTP request: peer not authenticated
javax.net.ssl.SSLPeerUnverifiedException: peer not authenticated

说明端口号不是根本问题，，，，最后发现原来只要在路径名前加上“http：//“一切问题就都解决了，，

即原代码中

conn.setEndpoint("192.168.0.19");

修改为：

conn.setEndpoint("http://192.168.0.19");

就可以调用ceph s3接口成功。