从java.util.Date获取Year

发布时间：2020-12-14 05:29:21 所属栏目：Java 来源：网络整理

导读：我在Cassandra列系列中有一个日期列.当我使用datastax java API从这个CF中检索数据时,这个日期对象可以作为一个java.util.Date对象. 它有一个getYear()方法,但它已被弃用.相应的javadoc说： As of JDK version 1.1,replaced by Calendar.get(Calendar.YEAR)

我在Cassandra列系列中有一个日期列.当我使用datastax java API从这个CF中检索数据时,这个日期对象可以作为一个java.util.Date对象.

它有一个getYear()方法,但它已被弃用.相应的javadoc说：

As of JDK version 1.1,replaced by Calendar.get(Calendar.YEAR) – 1900.

如何正确从这个日期对象获取年,月,日属性？

解决方法

你可以尝试像tihs吗？

// create a calendar
      Calendar cal = Calendar.getInstance();
      cal.setTime(datetime);  //use java.util.Date object as arguement
      // get the value of all the calendar date fields.
      System.out.println("Calendar's Year: " + cal.get(Calendar.YEAR));
      System.out.println("Calendar's Month: " + cal.get(Calendar.MONTH));
      System.out.println("Calendar's Day: " + cal.get(Calendar.DATE));

如javadocs年所述;

@Deprecated public int getYear() Deprecated. As of JDK version 1.1,replaced by Calendar.get(Calendar.YEAR) – 1900. Returns a value that is the result of subtracting 1900 from the year that contains or begins with the instant in time represented by this Date object,as interpreted in the local time zone. Returns: the year represented by this date,minus 1900.

（编辑：李大同）

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