java.time.LocalDateTime.until() 方法示例

package com.codingdict;

import java.time.LocalDateTime;
import java.time.temporal.ChronoUnit;

public class LocalDateTimeDemo {
   public static void main(String[] args) {

      LocalDateTime date = LocalDateTime.parse("2017-01-03T10:15:30");
      LocalDateTime date1 = LocalDateTime.now();
      System.out.println(date.until(date1, ChronoUnit.HOURS));  
   }
}