JAVA得到汉字的拼音

          
              retuBuf.append(getPinyin(chars[i])); 
             
          }       
          return retuBuf.toString();       
      }  
     
      //    获得所有汉字的拼音转换成拼音后的字符串（全大写）
      public String getFirstSpell(String gb2312) {           
          if (null == gb2312 || "".equals(gb2312.trim()))
          {               
              return gb2312;           
          }           
          char[] chars = gb2312.toCharArray();           
          StringBuffer retuBuf = new StringBuffer();          
          for (int i = 0, Len = chars.length; i < Len; i++)
          {           
              retuBuf.append(getPinyin(chars[i]).substring(0, 1));               
          }       
          return retuBuf.toString().toUpperCase();       
      }      
     

      public String getPinyin(char gb2312) {           
          int ascii = getCnAscii(gb2312);           
          if (ascii == 0) {               
              return String.valueOf(gb2312);           
          }
          else
          {               
              String spell = getSpellByAscii(ascii);               
              if (spell == null)
              {