mybatis中注解的方式实现批量插入

方法上引用@InsertProvider注解 
@InsertProvider(type = UrlBlackDAOProvider.class, method = "insertAll")
     void batchSaveBlackList(@Param("list") List<UrlBlackInfo> blacklists); 
写一个名为UrlBlackDAOProvider类，并且类里写一个名为insertAll的方法
 public String insertAll(Map map) {
         List<UrlBlackInfo> urlBlack = (List<UrlBlackInfo>) map.get("list");
         StringBuilder sb = new StringBuilder();
         sb.append("INSERT INTO tb_url_blacklist ");
         sb.append("(url, receive_num, url_type, create_time) ");
         sb.append("VALUES ");
         MessageFormat mf = new MessageFormat("(#'{'list[{0}].url},#'{'list[{0}].receiveNum},#'{'list[{0}].urlType},#'{'list[{0}].createTime})");
         for (int i = 0; i < urlBlack.size(); i++) {
             sb.append(mf.format(new Object[]{i}));
             if (i < urlBlack.size() - 1) {
                 sb.append(",");
             }
         }
         return sb.toString();
     }