code: public void setSql(String sql) {
  		if (StringUtils.isNotEmpty(sql)) {
  			this.sql = sql.trim();
  			this.comment = parseComment(sql);
  			this.digest = MessageDigestUtils.MD5(sql);
  			
  			String sqlStatement = this.sql.toLowerCase();
  			if (sqlStatement != null) {
  				this.select = sqlStatement.startsWith("select");
  				this.procedure = sqlStatement.startsWith("call");
  			}
  		}
  	}
docs: 设置Sql语句
  
  @param sql Sql语句