code: public int delMetaBeanById(String tableName, String id) {
  		//JdbcTemplate jdbcTemplate = (JdbcTemplate) MicroDbHolder.getDbSource(dbName);
  		JdbcTemplate jdbcTemplate =getMicroJdbcTemplate();
  		String sql = "delete from " + tableName + " where id=?";
  		String[] paramArray=new String[1];
  		paramArray[0]=id;
  		logger.debug(sql);
  		logger.debug(paramArray);
  		Integer retStatus=jdbcTemplate.update(sql,paramArray);
  		return retStatus;
  	}
docs: /*
  锟斤拷荼锟斤拷锟斤拷id删锟斤拷锟阶硷拷锟斤拷bean