java 日期格式化

// 日期转化为大小写  
  public static String dataToUpper(Date date) {  
          Calendar ca = Calendar.getInstance();     
          ca.setTime(date);     
          int year = ca.get(Calendar.YEAR);     
          int month = ca.get(Calendar.MONTH) + 1;     
          int day = ca.get(Calendar.DAY_OF_MONTH);  
          return numToUpper(year) + "年" + monthToUppder(month) + "月" + dayToUppder(day) + "日";  
  }
  // 日期转化为年月日
  public static String dataConvert(Date date) {  
   Calendar ca = Calendar.getInstance();     
   ca.setTime(date);     
   int year = ca.get(Calendar.YEAR);     
   int month = ca.get(Calendar.MONTH) + 1;     
   int day = ca.get(Calendar.DAY_OF_MONTH);  
   return year + "年" + month + "月" + day + "日";  
  }  
     
   // 将数字转化为大写  
   public static String numToUpper(int num) {  
         //String u[] = {"零","壹","贰","叁","肆","伍","陆","柒","捌","玖"};  
          String u[] = {"〇","一","二","三","四","五","六","七","八","九"};  
          char[] str = String.valueOf(num).toCharArray();  
          String rstr = "";  
          for (int i = 0; i < str.length; i++) {  
                  rstr = rstr + u[Integer.parseInt(str[i] + "")];  
           }  
          return rstr;  
   }  
     
   // 月转化为大写  
   public static String monthToUppder(int month) {  
            if(month < 10) {  
                    return numToUpper(month);          
            } else if(month == 10){  
                    return "十";  
            } else {  
                    return "十" + numToUpper(month - 10);  
            }  
   }  
     
  // 日转化为大写  
   public static String dayToUppder(int day) {  
            if(day < 20) {  
                     return monthToUppder(day);  
            } else {  
                     char[] str = String.valueOf(day).toCharArray();  
                     if(str[1] == '0') {  
                              return numToUpper(Integer.parseInt(str[0] + "")) + "十";  
                     }else {  
                              return numToUpper(Integer.parseInt(str[0] + "")) + "十" + numToUpper(Integer.parseInt(str[1] + ""));  
                     }  
          }  
  }