Java生成汉字首字母(含多音字)

Dear 丶 2021-12-12 13:05 569阅读 0赞

/**
    	 * 汉字转换位汉语拼音首字母
    	 * 英文字符不变，特殊字符丢失 支持多音字
    	 * 生成方式如（长沙市长:cssc,zssz,zssc,cssz）
    	 */
    	public static String converterToFirstSpell(String chines) throws Exception {
    		if (StringUtils.isBlank(chines)) {
    			return null;
    		}
    		// 打散字符串
    		char[] ziCharArray = chines.toCharArray();
    		// 拼音集合
    		List<List<String>> list = new ArrayList<List<String>>();
    		int size = ziCharArray.length;
    		for (int i = 0; i < size; i++) {
    			// 128 ASCII码 可见字符
    			char c = ziCharArray[i];
    			if (c > 128) {
    				List<String> result = duoYinZi(c);
    				list.add(result);
    			} else {
    				List<String> result = new ArrayList<String>();
    				result.add(String.valueOf(ziCharArray[i]));
    				list.add(result);
    			}
    		}
    		String result = parseTheChineseByObject(list);
    		return result;
    	}
    	 
    	private static String parseTheChineseByObject(List<List<String>> list) {
    		Set<String> result = new HashSet<String>();
    		if (CollectionUtils.isNotEmpty(list)) {
    			result.addAll(list.get(0));
    		}
    		int size = list.size();
    		for (int i = 1; i < size; i++) {
    			Set<String> compositePYTemp = new HashSet<String>();
    			for (String pinyinFast : result) {
    				for (String c : list.get(i)) {
    					String str = pinyinFast + c;
    					compositePYTemp.add(str);
    				}
    			}
    			result = compositePYTemp;
    		}
    		StringBuilder sb = new StringBuilder();
    		if (CollectionUtils.isNotEmpty(result)) {
    			for (String str : result) {
    				sb.append(str).append(",");
    			}
    			sb.deleteCharAt(sb.length() - 1);
    		}
    		return sb.toString().toUpperCase();
    	}
    	 
    	public static List<String> duoYinZi(char zi) throws Exception {
    		List<String> pinyinName = new ArrayList<String>();
    		HanyuPinyinOutputFormat config = new HanyuPinyinOutputFormat();
    		// 小写
    		config.setCaseType(HanyuPinyinCaseType.LOWERCASE);
    		// 没有音调数字
    		config.setToneType(HanyuPinyinToneType.WITHOUT_TONE);
    		// 取得当前汉字的所有全拼
    		String[] pyArray = PinyinHelper.toHanyuPinyinStringArray(zi, config);
    		if (pyArray != null && pyArray.length > 0) {
    			for (int pyIndex = 0; pyIndex < pyArray.length; pyIndex++) {
    				// 取首字母
    				char fast = pyArray[pyIndex].charAt(0);
    				int index = pinyinName.indexOf(String.valueOf(fast));
    				if (index < 0) {
    					pinyinName.add(String.valueOf(fast));
    				}
    			}
    		}
    		return pinyinName;
    	}

调用：String first1 = Pinyin4j.converterToFirstSpell(“长沙银行”);  
System.err.println(first1);