mapreduce操作hbase多个输入表

List scans = new ArrayList();  

  

Scan scan1 = new Scan();  

//这里可以定义其他的filter

scan1.setStartRow(firstRow1);  

scan1.setStopRow(lastRow1);  

scan1.setAttribute(Scan.SCAN_ATTRIBUTES_TABLE_NAME, table1);  

scans.add(scan1);  

  

Scan scan2 = new Scan();  

scan2.setStartRow(firstRow2);  

scan2.setStopRow(lastRow2);  

scan1.setAttribute(Scan.SCAN_ATTRIBUTES_TABLE_NAME, table2);  

scans.add(scan2);  

 //注意这里的输入的源表，改成了scans

TableMapReduceUtil.initTableMapperJob(scans, TableMapper.class, Text.class, IntWritable.class, job);