servlet-3.0

问题 I'm using logback-access in my web app. But when I'm using <Valve className="ch.qos.logback.access.tomcat.LogbackValve"/> in server.xml.My servlet using request.startAsync() will fail. java.lang.IllegalStateException: Not supported. at org.apache.catalina.connector.Request.startAsync(Request.java:1664) at org.apache.catalina.connector.Request.startAsync(Request.java:1657) at org.apache.catalina.connector.RequestFacade.startAsync(RequestFacade.java:1023) at com.nut.NutServlet.doPost(NutServlet

问题 I'm using logback-access in my web app. But when I'm using <Valve className="ch.qos.logback.access.tomcat.LogbackValve"/> in server.xml.My servlet using request.startAsync() will fail. java.lang.IllegalStateException: Not supported. at org.apache.catalina.connector.Request.startAsync(Request.java:1664) at org.apache.catalina.connector.Request.startAsync(Request.java:1657) at org.apache.catalina.connector.RequestFacade.startAsync(RequestFacade.java:1023) at com.nut.NutServlet.doPost(NutServlet

问题 I'm planing to migrate my old app to Spring-Boot. I want to stop using web.xml descriptor and register old pure Servlet ("async-supported" enabled) and an associated ServletContextListener. 回答1: Spring Boot will automatically register any Servlet beans in your application context with the servlet container. By default async supported is set to true so there's nothing for you to do beyond creating a bean for your Servlet . If, for whatever reason, you want to take more control over your

问题 I need a thread in Web/JavaEE container to fetch information from an external source and complete corresponding AsyncContext objs in same JVM. I wish to have a zero-added-latency solution, so periodic polling or a timer is ruled out. I could start a thread but I believe it is frowned upon in a Web container and not portable. Q1. Is it possible to run a thread portably in a Java EE container instead? Q2. If I want to run a thread in a Web Container anyway, what is the "least of all evil" ways?

问题 I am looking at using the "@Resource String ..." injection available in servlet 3.0+ containers for providing configuration parameters easily to servlets. I would like for the defaults to work and fail if the key is not present in JNDI (indicating a configuration error) I have toyed with a simple servlet in Netbeans 8.2 with Glassfish 4.1.1 where I would like to have the userName field, and the setFullName(String fullName) set: package foo; import java.io.IOException; import java.io

问题 I have a problem with my REST-Application using Resteasy. When I deploy the application with this dependencies <dependency> <groupId>org.jboss.resteasy</groupId> <artifactId>resteasy-servlet-initializer</artifactId> <version>3.0.11.Final</version> </dependency> as described here in Chapter 3.5 sometimes the server deploys the application correctly and everything works fine. But sometimes I get Error invoking ServletContainerInitializer org.jboss.resteasy.plugins.servlet

问题 How Can I read a data sent to a server directly into parts if the data was sent as a gzip? Here is the basic android code that uploads the file(s) to the server private void sendViaUrlConnection(String urlPost, ArrayList<BasicNameValuePair> pairList, File[] sentfileList) { HttpURLConnection connection = null; GZIPOutputStream gz = null; DataOutputStream outputStream = null; OutputStream serverOutputStream = null; try { URL url = new URL(urlPost); connection = (HttpURLConnection) url

问题 I wrote very simple controller which test Servlet 3 features: @Autowired ThreadPoolTaskExecutor taskExecutor; @RequestMapping(value="{name}", method = RequestMethod.GET) public @ResponseBody DeferredResult<MyResponse> getShopInJSON(@PathVariable String name) { DeferredResult<MyResponse> df = new DeferredResult<MyResponse>(); taskExecutor.submit(new MyRunnable(df)); return df; } In separate Thread I'm doing nothing but 5 second sleep command and after it I return MyResult POJO to

问题 i just started to play around with Server Events and i run into a chrome error message i would like to understand. i searched the web real quick but didn't find an explanation so i guess i may do something terribly wrong. On the server side i have a simple servlet that accepts requests and creates a dummy event creator task: private Executor executor = Executors.newSingleThreadExecutor(); public void doGet(final HttpServletRequest request, final HttpServletResponse response) { final

问题 I want to know the directory structure for using servlet 3.0 with Tomcat 7. I have used annotation @WebServlet without initialization parameters. I want to know what is to be written in web.xml file then?? Is and is still to be written...?? The file is stored in the classes folder of the tomcat. 回答1: This is all you need in web.xml : <web-app xmlns="http://java.sun.com/xml/ns/javaee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee