MapReduce排序—分组排序

第1关：MapReduce排序—自定义排序

package com;
import org.apache.hadoop.io.WritableComparable;
import java.io.DataInput;
import java.io.DataOutput;
import java.io.IOException;
/**
 * 封装对象
 */
/********** Begin **********/
public class Weather implements WritableComparable<Weather> {
    //年
    private String year;
    //月
    private String month;
    //日
    private String day;
    //小时
    private String hour;
    //温度
    private int temperature;
    //湿度
    private String dew;
    //气压/压强
    private int pressure;
    //风向
    private String wind_direction;
    //风速
    private int wind_speed;
    //天气情况
    private String sky_condition;
    //1小时降雨量
    private String rain_1h;
    //6小时降雨量
    private String rain_6h;
    public St