keywordservice.java

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package cn.myvideosite.data.model.services;

import cn.myvideosite.data.model.bean.KeyWord;
import cn.myvideosite.data.model.dao.KeyWordDAO;

public class KeyWordService {
       	
	public static KeyWord save(KeyWord keyWord){
		KeyWord tmp = KeyWordDAO.findByKeyName(keyWord.getKeyName());
		if(tmp == null) KeyWordDAO.save(keyWord);
		else keyWord = tmp;
		return keyWord;
	}
}