thrift api java客户端连接HBase

时间:2014-06-24 00:35:23

标签: java dependencies hbase thrift

包使用:

import org.apache.hadoop.hbase.thrift.generated.AlreadyExists;
import org.apache.hadoop.hbase.thrift.generated.ColumnDescriptor;
import org.apache.hadoop.hbase.thrift.generated.Hbase;
import org.apache.hadoop.hbase.thrift.generated.IOError;
import org.apache.hadoop.hbase.thrift.generated.IllegalArgument;
import org.apache.hadoop.hbase.thrift.generated.Mutation;
import org.apache.hadoop.hbase.thrift.generated.TCell;
import org.apache.hadoop.hbase.thrift.generated.TRowResult;

import org.apache.thrift.TException;
import org.apache.thrift.protocol.TBinaryProtocol;
import org.apache.thrift.protocol.TProtocol;
import org.apache.thrift.transport.TSocket;
import org.apache.thrift.transport.TTransport;
import org.apache.thrift.transport.TTransportException;

致电方法

public void start() {
            try {
                TTransport socket = new TSocket("host-name", 9090);// IP Host Name
                TProtocol protocol = new TBinaryProtocol(socket, true, true);// Note here
                Hbase.Client client = new Hbase.Client(protocol);
                socket.open();
                System.out.println("open");
                try {
                    System.out.println("scanning tables...");
                    for (byte[] name : client.getTableNames()) { 
                        //code
                    }
                } catch (Exception e) {
                    e.printStackTrace();
                    out.println(e.getMessage());
                }
                socket.close();
                out.println("close");
            } catch (TTransportException e) {
                e.printStackTrace();
                out.println(e.getMessage());
            } catch (TException e) {
                e.printStackTrace();
                out.println(e.getMessage());

            }
}    

问题:

代码java 得到错误:方法名称无效:' getTableNames' 我无法在Hbase中提供列表 也许我对错过的包裹有疑问

感谢您的帮助

1 个答案:

答案 0 :(得分:1)

谢谢,问题解决了,我在 hbase-0.94.19.tar.gz \ hbase-0.94.19 \ src \ examples \ thrift2 中使用了DemoClient.java,这个rar比我安装好了在服务器上。我添加了这种依赖

    <dependency>
        <groupId>org.apache.hbase</groupId>
        <artifactId>hbase-thrift</artifactId>
        <version>0.98.2-hadoop2</version>
        <type>jar</type>
    </dependency>