整了还久还是没找到方法,请教各位大神了
List info = service.selInfo(string);
这样的list怎么转换json{}
这个又是什么错误呢
严重: Servlet.service() for servlet [dispatcherServlet] in context with path [/TextGrad] threw exception [Handler processing failed; nested exception is java.lang.AbstractMethodError: Method org/apache/commons/dbcp/DelegatingResultSet.getNString(Ljava/lang/String;)Ljava/lang/String; is abstract] with root cause
java.lang.AbstractMethodError: Method org/apache/commons/dbcp/DelegatingResultSet.getNString(Ljava/lang/String;)Ljava/lang/String; is abstract