java 日期工具类 java 日期工具类

public static final String PATTERN_YYYY_MM_DD = "yyyy-MM-dd"; public static final String YYYY_MM_DD = "yyyyMMdd"; public static final String PATTERN_YYYY_MM_DD2 = "yyyy/MM/dd"; /** 完整时间 yyyy-MM-dd HH:mm:ss */ public static final String yyyyMM = "yyyyMM"; public static final String yyyy = "yyyy"; public static final String yyyy_MM = "yyyy-MM"; public static final String MM_DD = "MM-dd"; public static final String yyyyMMChinese = "yyyy年MM月"; public static final String YYYYMMDD = "yyyyM