1. 配置tomcat。 2.在项目结构的libraries中添加使用的tomcat下bin目录中的servlet-api.jar包。
import javax.servlet.*; ^ C:UsersReignDesktopWebStocks.java:21: package javax.servlet.http does not exist import javax.servlet.http.*; ^ C:UsersReignDesktopWebStocks.java:27: cannot find symbol symbol: class HttpServlet public class WebStocks extends HttpServlet I am using textpad to compile ...
见解1 spring的ContextLoaderListener与DispatcherServlet在WebApplicationContext上的细微区别 我们知道spring在web.xml中可以有三种方式来配置其xml路径: org.springframework.web.servlet.DispatcherServlet org.springframework.web.context.Co...IDEA中添加xml配置文件时,显示file 有时候在IDEA中添加配置文件,不小心后缀忘...
14-Dec-2014 08:15:23.923 SEVERE [http-nio-8080-exec-14] org.apache.catalina.core.StandardWrapperValve.invoke Servlet.service() for servlet [srvNavigation.SrvPT] in context with path [/myapp] threw exception java.lang.NullPointerException at srvNavigation.SrvPT.doGet(SrvPT.java:127) at javax...
14-Dec-2014 08:15:23.923 SEVERE [http-nio-8080-exec-14] org.apache.catalina.core.StandardWrapperValve.invoke Servlet.service() for servlet [srvNavigation.SrvPT] in context with path [/myapp] threw exception java.lang.NullPointerException ...