public static Map<String, Long> segStr(String content){
        // 分词
    	StringReader input = new StringReader(content);
        IKSegmenter iks = new IKSegmenter(input, true);
        Lexeme lexeme = null;
        Map<String, Long> words = new LinkedHashMap<String, Long>();
        try {
            while ((lexeme = iks.next()) != null) {
            	if(lexeme.getLength()>1){
                if (words.containsKey(lexeme.getLexemeText())) {
                    words.put(lexeme.getLexemeText(), words.get(lexeme.getLexemeText()) + 1);
                } else {
                    words.put(lexeme.getLexemeText(), 1L);
                }
                
            	}
            }       
        }catch(IOException e) {
            e.printStackTrace();
        }
        return words;
    }