【无标题】词频统计
根据部门编号分区,根据 薪水+补贴 降序排列
public class MapReduceWC { public static class MapWC extends Mapper<LongWritable,Text,Text, IntWritable> { IntWritable num =new IntWritable(1); Text word = new Text(); @Override protected void map(LongWritable key, Text value, Mapper<LongWritable, Text, Text, IntWritable>.Context context) throws IOException, InterruptedException { String[] split=value.toString().split("n"); for (String s:split){ word.set(s); context.write(null,num); } } }
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