eclipse中连接HBase报java.net.ConnectException: Connection refused: no further information
HBase已经常启动，在shell里也可以正常操作，但在eclipse中java操作HBase时，报如下错误：
15/07/27 15:18:21 INFO zookeeper.ClientCnxn: Opening socket connection to server 127.0.0.1/127.0.0.1:2181. Will not attempt to authenticate using SASL (无法定位登录配置)
15/07/27 15:18:22
WARN zookeeper.ClientCnxn: Session 0x0 for server null, unexpected error, closing socket connection and attempting reconnect
java.net.ConnectException: Connection refused: no further information
at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method)
at sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:599)
at org.apache.zookeeper.ClientCnxnSocketNIO.doTransport(ClientCnxnSocketNIO.java:350)
at org.apache.zookeeper.ClientCnxn$SendThread.run(ClientCnxn.java:1068)
15/07/27 15:18:22 INFO zookeeper.ClientCnxn: Opening socket connection to server 0:0:0:0:0:0:0:1/0:0:0:0:0:0:0:1:2181. Will not attempt to authenticate using SASL (无法定位登录配置)
15/07/27 15:18:22 ERROR zookeeper.ClientCnxnSocketNIO: Unable to open socket to 0:0:0:0:0:0:0:1/0:0:0:0:0:0:0:1:2181
15/07/27 15:18:22
WARN zookeeper.ClientCnxn: Session 0x0 for server null, unexpected error, closing socket connection and attempting reconnect
java.net.SocketException: Address family not supported by protocol family: connect
at sun.nio.ch.Net.connect(Native Method)
at sun.nio.ch.SocketChannelImpl.connect(SocketChannelImpl.java:532)
at org.apache.zookeeper.ClientCnxnSocketNIO.registerAndConnect(ClientCnxnSocketNIO.java:266)
at org.apache.zookeeper.ClientCnxnSocketNIO.connect(ClientCnxnSocketNIO.java:276)
at org.apache.zookeeper.ClientCnxn$SendThread.startConnect(ClientCnxn.java:958)
at org.apache.zookeeper.ClientCnxn$SendThread.run(ClientCnxn.java:993)
15/07/27 15:18:22 WARN zookeeper.RecoverableZooKeeper: Possibly transient ZooKeeper exception: org.apache.zookeeper.KeeperException$ConnectionLossException: KeeperErrorCode = ConnectionLoss for /hbase/hbaseid
解决方法：
在代码中，Configuration里设置hbase.zookeeper.quorum，指定sdw1、sdw2，如果hosts中没有配置sdw1、sdw2解析ip，要直接将sdw1和sdw2换成对应ip，如：
Configuration conf=HBaseConfiguration.create();
conf.set("hbase.zookeeper.quorum", "sdw1,sdw2");
HBaseAdmin admin=new HBaseAdmin(conf);
Configuration conf=HBaseConfiguration.create();
conf.set("hbase.zookeeper.quorum", "192.168.10.201,192.168.10.202");
HBaseAdmin admin=new HBaseAdmin(conf);