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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