Java实现汉字拼音转换和关键字分词（pinyin4j、hanlp）

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pinyin4j

1. 添加maven依赖

<dependency><groupId>com.belerweb</groupId><artifactId>pinyin4j</artifactId><version>2.5.0</version>
</dependency>

2. 获取文本拼音

 /*** 获取文本拼音* @param context 文本内容* @param existNotPinyin 是否保存非汉字* @return String 拼音*/
private String pinyinTest(String context, boolean existNotPinyin) {if (context == null || context.trim().length() <= 0) {return null;}//设置格式HanyuPinyinOutputFormat outputFormat = new HanyuPinyinOutputFormat();//WITHOUT_TONE 不带音标、WITH_TONE_NUMBER 带数字音标、WITH_TONE_MARK 带符号音标outputFormat.setToneType(HanyuPinyinToneType.WITHOUT_TONE);char[] chars = context.trim().toCharArray();StringBuilder builder = new StringBuilder();try {for (char aChar : chars) {String[] pinyin = PinyinHelper.toHanyuPinyinStringArray(aChar, outputFormat);//不是汉字会返回nullif (pinyin == null || pinyin.length <= 0) {if (existNotPinyin) {builder.append(aChar);}continue;}//多音字的情况取第一个（也可以全取）builder.append(pinyin[0]);}} catch (BadHanyuPinyinOutputFormatCombination e) {e.printStackTrace();}return builder.toString().toUpperCase();}

3. 测试用例

@Test
public void test() {String temp = "我爱罗52";String list = pinyinTest(temp, false); //WOAILUO
}

hanlp

1. 添加Maven依赖

<dependency><groupId>com.hankcs</groupId><artifactId>hanlp</artifactId><version>portable-1.8.4</version>
</dependency>

2. 获取文本拼音

 /*** 获取文本拼音* @param context 文本内容* @param existNotPinyin 是否保存非汉字* @return String 拼音*/
private String hanLpTest(String content, Boolean existNotPinyin) {if (context == null || context.trim().length() <= 0) {return null;}if (existNotPinyin) {return HanLP.convertToPinyinString(content, "", false).toUpperCase();}List<Pinyin> pinyinList = HanLP.convertToPinyinList(content);StringBuilder builder = new StringBuilder();pinyinList.forEach(pinyin -> {if (pinyin == null || Pinyin.none5.equals(pinyin)) {return;}builder.append(pinyin.getPinyinWithoutTone());});return builder.toString().toUpperCase();
}

3. 测试用例

@Test
public void test() {String temp = "我爱罗52";System.out.println(hanLpTest(temp, true)); //WOAILUO52
}

关键字分词

1. 正则表达式

/*** 分词正则表达式*/
private final String SPLIT_WORD_REG_EX = "[^aoeiuv]?h?[iuv]?(ai|ei|ao|ou|er|ang?|eng?|ong|a|o|e|i|u|ng|n)?";

2. 获取分词结果

/*** 关键字分词* @param keyword 关键字* @return List<String> 分词列表*/
private List<String> splitTest(String keyword) {if (context == null || context.trim().length() <= 0) {return Collections.emptyList();}List<String> keywordList = new ArrayList<>();int index = 0;Pattern pat = Pattern.compile(SPLIT_WORD_REG_EX);for (int i = keyword.length(); i > 0; i = i - index) {Matcher matcher = pat.matcher(keyword);if (!matcher.find()) {break;}keywordList.add(matcher.group());index = matcher.end() - matcher.start();keyword = keyword.substring(index);}return keywordList;
}

3. 测试用例

 @Testpublic void test() {String temp = "我爱罗52";List<String> list = splitTest(temp);System.out.println(list); //[我, 爱, 罗, 5, 2]}

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