本例子实现从hbase获取数据,并发送kafka。
使用
#!/usr/bin/env python #coding=utf-8 import sys import time import json sys.path.append('/usr/local/lib/python3.5/site-packages') from thrift import Thrift from thrift.transport import TSocket from thrift.transport import TTransport from thrift.protocol import TBinaryProtocol from hbase1 import Hbase #调用hbase thrif1 from hbase1.ttypes import * from kafka import KafkaConsumer from kafka import KafkaProducer from kafka.errors import KafkaError import unittest class HbaseOpreator: def __init__(self,host,port,table='test'): self.tableName=table self.transport=TTransport.TBufferedTransport(TSocket.TSocket(host,port)) self.protocol=TBinaryProtocol.TBinaryProtocol(self.transport) self.client=Hbase.Client(self.protocol) self.transport.open() def __del__(self): self.transport.close() def scanTablefilter(self,table,*args): d=dict() L=[] try: tableName=table # scan = Hbase.TScan(startRow, stopRow) scan=TScan() #主键首字母123 # filter = "PrefixFilter('123_')" # filter = "RowFilter(=,'regexstring:.aaa')" #过滤条件,当前为 statis_date 字段,值为20170223 # fitler = "SingleColumnValueFilter(tableName,'f','statis_date','20170223')" # filter="SingleColumnValueFilter('f','statis_date',=,'binary:20170223') AND SingleColumnValueFilter('f','name',=,'binary:LXS')" filter="SingleColumnValueFilter('info','name',=,'binary:lilei') OR SingleColumnValueFilter('info','name',=,'binary:lily')" scan.filterString=filter id=self.client.scannerOpenWithScan(tableName,scan,None) result=self.client.scannerGet(id) # result=self.client.scannerGetList(id,100) while result: for r in result: key=r.row name=r.columns.get('info:name').value age=r.columns.get('info:age').value phone=r.columns.get('info:phone').value d['key']=key d['name']=name d['age']=age d['phone']=phone # encode_result_json=json.dumps(d).encode(encoding="utf-8") # print(encode_result_json) L.append(d) result=self.client.scannerGet(id) return json.dumps(L).encode(encoding="utf-8") finally: # self.client.scannerClose(scan) print("scan finish") def sendKfafkaProduct(data): # self.host_port='localhost:9092' producer = KafkaProducer(bootstrap_servers=['localhost:9092']) for d in data: producer.send('test', key=b'lxs', value=d) time.sleep(5) print(d) while True: producer.send('test', key=b'lxs', value=data) time.sleep(5) print(data) if __name__== '__main__': # unittest.main() B=HbaseOpreator('10.27.1.138',9090) value=B.scanTablefilter('ns_lbi:test_hbase_student') print(value) #sendKfafkaProduct(value)
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