权重练习

public class Weight {

    public static void main(String[] args) {



        Date now =DateUtils.string2Date("2014-02-20 24", "yyyy-MM-dd HH");

        Date dataTime = DateUtils.string2Date("2014-02-20", DateUtils.PATTERN_DATE);        

        double day=1D;    //总天 

        double dv=1D;         //总访问数

        

                

        double t=  0.7D* ( 86400000D/(now.getTime() - dataTime.getTime())) ; //时间影响 时间越少，占比越大        

         double n=0.3D*(dv/(5D*day *0.7))  ;    //访问次数影响 访问次数越多，占比越大

        double weight = t+n ;



 

        System.out.println(t);

        System.out.println(weight);

        

 

     }

}