servlets

问题 This question already has answers here : How to define servlet filter order of execution using annotations in WAR (3 answers) Closed 5 years ago . Suppose i have following in my web.xml <filter-mapping> <filter-name>F1</filter-name> <url-pattern>/XYZ/*</url-pattern> </filter-mapping> <filter-mapping> <filter-name>F2</filter-name> <url-pattern>/XYZ/abc.do</url-pattern> </filter-mapping> <filter-mapping> <filter-name>F3</filter-name> <url-pattern>/*</url-pattern> </filter-mapping> What will be

问题 I am trying to log (just to console write now for simplicity sake) the final rendered HTML that will be returned by the HttpServletResponse. (i.e. the body) To this end, I am using the HandlerInterceptorAdapter from Spring MVC like so: public class VxmlResponseInterceptor extends HandlerInterceptorAdapter { @Override public void afterCompletion(HttpServletRequest request, HttpServletResponse response, Object handler, Exception ex) throws Exception { System.out.println(response.toString()); }

问题 I am new to angular2, I want to know what is the possible file structure for SpringMVC4 with angular 2? As shown in image, it will work for Angular 1.x but file structure of Angular 2 is quite different and its component driven, and I am using angular 2 file structure as given below I searched a lot and I found that we can use Front end(using angular2) and back end(server- using spring/springboot) separately, but we need 2 server to run application. For example, Frontend : 192.168.100.1:4200

问题 I'm trying to register a servlet using servletContainerInitializer but it doesn't seem to work, Maybe it's my code (kindly review it), but I came to wonder about the difference between ServletContainerInitializer and ServletContextListener, because the follwing code runs fine when used as ServletContextListener instead. From servlet 3.0 specification: 4.4 Configuration methods (adding servlets dynamically): ... or from the onStartup method of a ServletContainerInitializer implementation ...

问题 I'm developing a single page jQuery & Backbone.js web app. The backend is a JBoss 6 application server. Until now we had the following structure: There is only one servlet (front controller). Every request from the JavaScript client goes through here. In the servlet - at the first request of a certain JS client - I make a look p to a stateful session bean. For the next requests of this client, I store the result of the look up in an HTTP session container. So every JS client has exactly one

问题 I am trying to connect my Servlet to mysql database using data Source . But whenever I run my servlet I end up getting this exception : java.lang.AbstractMethodError: com.mysql.jdbc.Connection.isValid(I)Z org.apache.tomcat.dbcp.dbcp2.DelegatingConnection.isValid(DelegatingConnection.java:913) org.apache.tomcat.dbcp.dbcp2.PoolableConnection.validate(PoolableConnection.java:282) org.apache.tomcat.dbcp.dbcp2.PoolableConnectionFactory.validateConnection(PoolableConnectionFactory.java:356) org

问题 I created a basic application shell with AppFuse, and followed the AppFuse tutorial to create a a simple RESTful service with Jax-RS. That works just fine. A call to http://localhost:8080/services/api/persons returns a collection of Person objects as a Json formatted string with the right data. I now would like to access the ServletRequest and ServletResponse objects from within a RESTful service exposed by Appfuse (to use another library that requires these objects). I think that should be

问题 Once I have came across a pattern, where ServletRequest and response objects are put to servlet's local ThreadLocal variables. The servlet class has also methods to get current request and response objects. So in order to get these objects you still need to operate with servlet object. What is the point of having these ThrealLocal local variables? 回答1: The point is to have the request and response objects in classes that would otherwise would not have them (for example they are not servlets).

问题 When I build my project in Eclipse Helios Service Release 2, I get an error in my web.xml . Please suggest what I have to do for this. In my project I am using DTD 2.2. The error is below. The content of element type "web-app" must match "(icon?,display- name?,description?,distributable?,context-param*,servlet*,servlet-mapping*,session-config?,mime- mapping*,welcome-file-list?,error-page*,taglib*,resource-ref*,security-constraint*,login-config?,security- role*,env-entry*,ejb-ref*)". 回答1: The

问题 When I build my project in Eclipse Helios Service Release 2, I get an error in my web.xml . Please suggest what I have to do for this. In my project I am using DTD 2.2. The error is below. The content of element type "web-app" must match "(icon?,display- name?,description?,distributable?,context-param*,servlet*,servlet-mapping*,session-config?,mime- mapping*,welcome-file-list?,error-page*,taglib*,resource-ref*,security-constraint*,login-config?,security- role*,env-entry*,ejb-ref*)". 回答1: The