Java 阿拉伯数字日期转中文日期格式工具类

小灰灰 2023-07-21 08:52 42阅读 0赞

package com.study.utils;
    
    
    import java.time.LocalDateTime;
    import java.time.format.DateTimeFormatter;
    
    /**
     * Description: 中文日期转换工具类
     * @version 1.0
     */
    public class CnDateConvertUtil {
    
        private CnDateConvertUtil(){}
    
        private static final String [] CN_NUM_STR = new String[]{"〇","一","二","三","四","五","六","七","八","九"};
    
        private static final String [] CN_DATE_STR = new String[]{"年","月","日","时","分","秒"};
    
        private static final DateTimeFormatter FORMATTER = DateTimeFormatter.ofPattern("yyyy-MM-dd-HH-mm-ss");
    
        private static final String CN_TEN_STR = "十";
    
        private static final String CN_MORNING_STR = "上午";
    
        private static final String CN_AFTERNOON_STR = "下午";
    
        /**
         * 阿拉伯数字日期转换成中文格式日期
         * @param localDateTime  输入日期时间,内部转换为字符串日期 yyyy-MM-dd-HH-mm-ss
         * @return  eg:二〇二〇年十二月二十七日上午十一时五十八分
         */
        public  static String dateToCnDate(LocalDateTime localDateTime) {
            if(localDateTime == null){
                return "";
            }
            String formatStr = null;
            try {
                formatStr = FORMATTER.format(localDateTime);
            } catch (Exception e) {
               System.out.println("日期转换出错:"+e.getMessage());
               return "";
            }
            StringBuilder result = new StringBuilder();
            String[] dateStr =formatStr.split("-");
            for (int i=0; i<dateStr.length; i++) {
                String charStr = dateStr[i];
                if(i == 3){
                    if(Integer.parseInt(charStr)<12){
                        result.append(CN_MORNING_STR);
                    }else{
                        charStr = String.valueOf((Integer.parseInt(charStr)-12));
                        result.append(CN_AFTERNOON_STR);
                    }
                }
                for (int j=0; j<charStr.length(); j++) {
                    String str = String.valueOf(charStr.charAt(j));
                    if (charStr.length() == 2) {
                        if (charStr.equals("10")) {
                            result.append(CN_TEN_STR);
                            break;
                        } else {
                            if (j == 0) {
                                if (charStr.charAt(j) == '1'){
                                    result.append(CN_TEN_STR);
                                } else if(charStr.charAt(j) == '0'){
                                   // result.append(CN_NUM_STR[0]);
                                } else{
                                    result.append(CN_NUM_STR[Integer.parseInt(str)]).append(CN_TEN_STR);
                                }
                            }
                            if (j == 1) {
                                if (charStr.charAt(j) == '0'){
                                    result.append(CN_NUM_STR[0]);
                                } else{
                                    result.append(CN_NUM_STR[Integer.parseInt(str)]);
                                }
                            }
                        }
                    } else {
                        result.append(CN_NUM_STR[Integer.parseInt(str)]);
                    }
                }
                result.append(CN_DATE_STR[i]);
            }
            return result.toString();
        }
    
    
        public static void main(String[] args) {
            LocalDateTime testDateTime = LocalDateTime.of(1012, 12, 31, 23, 44, 55);
            String convertDateTime = dateToCnDate(testDateTime);
            System.out.println(("原日期:"+testDateTime.format(DateTimeFormatter.ISO_LOCAL_DATE_TIME)));
            System.out.println("转换的中文日期:"+convertDateTime);
        }
    }

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