java-根据文字排序-sort

「爱情、让人受尽委屈。」 2024-04-17 05:26 41阅读 0赞

工具类：

import net.sourceforge.pinyin4j.PinyinHelper;
    
    
    public class OrderByChineseUtil {
    
        //拼音首字母排序(正序)
        public static int PinYin(String o1, String o2) {
            if (StringUtils.isEmpty(o1) || StringUtils.isEmpty(o2)) {
                return 1;
            } else {
                for (int i = 0; i < o1.length() && i < o2.length(); i++) {
                    int codePoint1 = o1.charAt(i);
                    int codePoint2 = o2.charAt(i);
                    if (Character.isSupplementaryCodePoint(codePoint1) || Character.isSupplementaryCodePoint(codePoint2)) {
                        i++;
                    }
                    if (codePoint1 != codePoint2) {
                        if (Character.isSupplementaryCodePoint(codePoint1) || Character.isSupplementaryCodePoint(codePoint2)) {
                            return codePoint1 - codePoint2;
                        }
                        String pinyin1 = PinyinHelper.toHanyuPinyinStringArray((char) codePoint1) == null
                                ? null : PinyinHelper.toHanyuPinyinStringArray((char) codePoint1)[0];
                        String pinyin2 = PinyinHelper.toHanyuPinyinStringArray((char) codePoint2) == null
                                ? null : PinyinHelper.toHanyuPinyinStringArray((char) codePoint2)[0];
                        if (pinyin1 != null && pinyin2 != null) { // 两个字符都是汉字
                            if (!pinyin1.equals(pinyin2)) {
                                return pinyin1.compareTo(pinyin2);
                            }
                        } else {
                            return codePoint1 - codePoint2;
                        }
                    }
                }
            }
            return o1.length() - o2.length();
        }
    
        /**
         * 中文字符转拼音
         *
         * @param s1
         * @param s2
         * @param asc
         * @return
         */
        public static int ChineseToPinyin(String s1, String s2, boolean asc) {
            if (asc) {
                return PinYin(s1, s2);
            } else {
                return -PinYin(s1, s2);
            }
        }
    
    }

使用方式：

//正序 
    Collections.sort(对象, (a, b) -> OrderByUtil.ChineseToPinyin(a.getLeadGroupName(), b.getName(), true));
    //倒序
    Collections.sort(对象, (a, b) -> OrderByUtil.ChineseToPinyin(a.getLeadGroupName(), b.getName(), false));