servlet-3.0

java.lang.NoSuchMethodError: javax.servlet.http.HttpServletRequest.startAsync

由 杀马特。学长 韩版系。学妹 提交于 2019-12-06 00:33:41
问题 Any idea why I'm getting this error at runtime ? I'm trying to deploy an AsyncServlet on Jetty. java.lang.NoSuchMethodError: javax.servlet.http.HttpServletRequest.startAsync(Ljavax/servlet/ServletRequest;Ljavax/servlet/ServletResponse;)Ljavax/servlet/AsyncContext; at my.server.SlowServlet.doGet(SlowServlet.java:16) at javax.servlet.http.HttpServlet.service(HttpServlet.java:705) at javax.servlet.http.HttpServlet.service(HttpServlet.java:814) at org.eclipse.jetty.servlet.ServletHolder.handle

Call Asynchronous Servlet From AJAX

由 ぃ、小莉子 提交于 2019-12-05 22:14:27
What I am trying to accomplish is not too complex, but I am having a bit of trouble as I am not well versed in AJAX. When it is implemented, I will have a JSP that has a button which invokes an Asynchronous Servlet. The servlet will run a long running task and provide dynamic feedback to the user by adding rows to a table when parts of the task are completed. Before I attempt to write the final version, I am doing a proof of concept to get an understanding of how this will work. However, I'm running into a snag. When I use an AJAX call upon clicking a button, the function works as expected

Spring Boot does not honor @WebServlet

由 痞子三分冷 提交于 2019-12-05 16:32:21
问题 I created a Servlet (extending from HttpServlet) and annotated as per 3.0 specs with @WebServlet(name="DelegateServiceExporter", urlPatterns={"/remoting/DelegateService"}) My @Configuration class in Spring Boot scans this servlet's package. However, it does not log that it has deployed this servlet in the embedded Tomcat 8.0.15 container when my Spring Boot application starts up. So, I added @Component to my servlet as well. Now, Spring Boot registers the servlet (proving to me that the scan

Disable @WebFilter (embedded in dependency jar)

由 ▼魔方 西西 提交于 2019-12-05 14:06:30
Is there a way to disable a embedded Servlet Filter? My project has a dependency jar that contains (inside the jar) a @WebFilter mapped to "/*" . I need the jar (it has a lot of commons class of my company), but this new project does not need this WebFilter, actually this new project will not work because this Filter checks user authentication and the new project has no "loggedUser". It's like a website Thanks web.xml takes precedence over annotations for precisely this reason. Simply declare the offending filter in web.xml the good old way and set its <filter-mapping> to something bogus, eg:

Annotation based Spring / JAX-RS integration with no web.xml

由 …衆ロ難τιáo~ 提交于 2019-12-05 05:56:20
问题 I'm trying to make a Servlet 3.0 REST server with no web.xml, ie dependent on java classes and annotations only. I'm not exactly sure how I can simultaneously register a Resource class with Spring and with the servlet mappings. I currently have: public class ApplicationInitializer extends AbstractAnnotationConfigDispatcherServletInitializer { @Override protected Class<?>[] getRootConfigClasses() { return new Class<?>[]{RootConfiguration.class}; } @Override protected Class<?>[]

Async Servlet - preferred implementation

由 末鹿安然 提交于 2019-12-05 02:02:25
问题 Lately, during my research about asynchronous processing in Servlets , I came across at at least three ways to implement some functionality using this approach. The questions are: Which one is the best? Maybe some of these approaches are not recommended? Maybe there is another one approach better than all of mentioned below? Found approaches: Using AsyncContext.start(Runnable) . This approach is quite simple and straightforward. But many serwers executes such a job in thread pool created for

How to config maven to use servlet 3

由 此生再无相见时 提交于 2019-12-05 00:01:20
I want to upgrade my webapp to use servlet 3.0 (insetd of 2.5). I am using WebLogic Server Version: 12.1.1.0 (12c),maven,java 7_10 and NetBeans 7.3.1 For some reason the only available servlet-api is 3.0-alpha-1 and not 3.0 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd"> <modelVersion>4.0.0</modelVersion> <dependencies> <dependency> <groupId>javax</groupId> <artifactId>javaee-web-api</artifactId> <version>6.0</version> <scope>provided<

Deployment of a JAX-RS application using web.xml, Servlet 3.0 and Jersey

由 删除回忆录丶 提交于 2019-12-04 22:41:04
问题 I'm trying to deploy my application, using web.xml, servlet 3.0, and jersey API. Unfortunately, it doesn't work. This is MyApplication.class : package com.example; public class MyApplication extends Application { public Set<Class<?>> getClasses() { Set<Class<?>> s = new HashSet<Class<?>>(); s.add(MyResource.class); return s; } } This is MyResource : @Path("/helloworld") @Produces(MediaType.TEXT_PLAIN) public class MyResource { @GET public String getHello() { return "HelloWorld !"; } } And my

Getting rid of web.xml in Vaadin 7 with VaadinServlet

由 ↘锁芯ラ 提交于 2019-12-04 17:16:52
I'm new to Java and Vaadin. A basic Vaadin project is using web.xml for all the mappings. If I want to use the @WebServlet annotation I need to create an inner class which somewhere inherits from HttpServlet . @SuppressWarnings("serial") public class VaadinplaygroundUI extends UI { @WebServlet(urlPatterns="/Helo") public static class Servlet extends VaadinServlet { } @Override protected void init(VaadinRequest request) { final VerticalLayout layout = new VerticalLayout(); I know, I'm missing some overwritten methods in the inner class Servlet to get it working, but I don't know which. There

Invoking servlet from java main method

由 ◇◆丶佛笑我妖孽 提交于 2019-12-04 16:09:36
import java.net.*; import java.io.*; public class sample { public static void main (String args[]) { String line; try { URL url = new URL( "http://localhost:8080/WeighPro/CommPortSample" ); BufferedReader in = new BufferedReader(new InputStreamReader(url.openStream())); line = in.readLine(); System.out.println( line ); in.close(); } catch (Exception e) { System.out.println("Hello Project::"+e.getMessage()); } } } My Servlet is invoking another Jsp page like the below, RequestDispatcher rd=request.getRequestDispatcher("index.jsp"); rd.forward(request, response); I am not getting any reaction
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