Java实现汉字到拼音转换的源码解析

 import net.sourceforge.pinyin4j.PinyinHelper;
  import net.sourceforge.pinyin4j.format.HanyuPinyinCaseType;
   import net.sourceforge.pinyin4j.format.HanyuPinyinOutputFormat;
   import net.sourceforge.pinyin4j.format.HanyuPinyinToneType;
   import net.sourceforge.pinyin4j.format.HanyuPinyinVCharType;
   import net.sourceforge.pinyin4j.format.exception.BadHanyuPinyinOutputFormatCombination;
 
   public class HanyuPinyinHelper {
   
      /** 
       * 将文字转为汉语拼音
       * @param chineselanguage 要转成拼音的中文
       */
      public String toHanyuPinyin(String ChineseLanguage){
          char[] cl_chars = ChineseLanguage.trim().toCharArray();
          String hanyupinyin = "";
          HanyuPinyinOutputFormat defaultFormat = new HanyuPinyinOutputFormat();
          defaultFormat.setCaseType(HanyuPinyinCaseType.LOWERCASE);// 输出拼音全部小写
         defaultFormat.setToneType(HanyuPinyinToneType.WITHOUT_TONE);// 不带声调
          defaultFormat.setVCharType(HanyuPinyinVCharType.WITH_V) ;
          try {
              for (int i=0; i<cl_chars.length; i++){
                  if (String.valueOf(cl_chars[i]).matches("[\u4e00-\u9fa5]+")){// 如果字符是中文,则将中文转为汉语拼音
                      hanyupinyin += PinyinHelper.toHanyuPinyinStringArray(cl_chars[i], defaultFormat)[0];
                  } else {// 如果字符不是中文,则不转换
                      hanyupinyin += cl_chars[i];
                  }
              }
          } catch (BadHanyuPinyinOutputFormatCombination e) {
              System.out.println("字符不能转成汉语拼音");