Java計算兩個日期之間的時間差(毫秒數)

Java計算兩個日期之間的時間差

package com.test1; import java.text.ParseException; import java.text.SimpleDateFormat; import java.util.Date; public class GetTimeDistance { public static void main(String[] args) throws ParseException { Date date1 = new Date(); Date date2 = new Date(); SimpleDateFormat sdf = new SimpleDateFormat("YYYY/MM/dd HH:mm:ss.SSS"); String d_1w_ifc_start = "2020/01/11 17:21:36.645"; String d_1w_ifc_end = "2020/01/11 17:22:51.347"; String d_1w_mysql_start = "2020/01/11 17:22:51.347"; String d_1w_mysql_end = "2020/01/11 17:22:51.716"; System.out.println(getTime(d_1w_ifc_start,d_1w_ifc_end)+"  "+getTime(d_1w_mysql_start,d_1w_mysql_end)); } // 獲取兩個時間相差分鐘數
    public static long getTime(String oldTime,String newTime) throws ParseException { SimpleDateFormat df = new SimpleDateFormat("YYYY/MM/dd HH:mm:ss.SSS"); long NTime =df.parse(newTime).getTime(); //從對象中拿到時間
        long OTime = df.parse(oldTime).getTime(); long diff=(NTime-OTime); return diff; } }

 

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