代码出现异常 大佬能帮解决下吗？？

图片说明

严重: Servlet.service() for servlet [jsp] in context with path [/shopping] threw exception [在 [99] 行处理 [/jsp/head.jsp] 时发生异常

96:


97:

98: <%
99: GoodsDao dao = DAOFactory.getGoodsServiceInstance();
100: String[] types = dao.queryTypes();
101: if (types != null & types.length > 0) {
102: String type;

严重: Servlet.service() for servlet [jsp] in context with path [/shopping] threw exception [在 [99] 行处理 [/jsp/head.jsp] 时发生异常

96:


97:

98: <%
99: GoodsDao dao = DAOFactory.getGoodsServiceInstance();
100: String[] types = dao.queryTypes();
101: if (types != null & types.length > 0) {
102: String type;

证书的问题 https://blog.csdn.net/gabriel576282253/article/details/81531746