java-ee

问题 Is there a plugin for Eclipse GWT or any other method to automatically deploy and run GWT app on Tomcat (or any other Serlvet container)? For the moment the only method I know is copying the compiled classes into WEB-INF directory but this is an arduous work. Additionally you have to configure Apache Tomcat manually. I'd like to have something like in Eclipse Dynamic Web Project where you can run your servlets directly by spawning tomcat process. Thanks 回答1: You could write an Ant task to

问题 My Project is using JSF2.0 and CDI. For one page, I want my backing bean to match the lifespan of the page. @ViewScoped seems a perfect fit but it's not part of CDI and then make our solution not consistent. Then my next option would be the CDI @ConversationScoped. Seems to me the only way to mark the boundary of a conversation is the program way via conversation.begin and conversation.end (I have used Seam 2.x, there you can use annotations to mark conversation boundary). My page is sitting

问题 I'm trying to get a Custom Security Realm in Glassfish working (i tried 3.0.1 final and 3.1 B33). I read nearly all tutorials about this, but it doesn't not work on my System. I'm getting the error Login failed: javax.security.auth.login.LoginException: unable to find LoginModule class: com.company.security.realm.CustomLoginModule when trying to login. Here is what i did: I created a little Maven project, which contains the needed Realm class, CustomRealm, and the corresponding LoginModule,

问题 I'm new in Eclipse, JSF, Wildfly and so on. I get this stacktrace: 22:03:42,430 ERROR [org.jboss.msc.service.fail] (MSC service thread 1-2) MSC000001: Failed to start service jboss.serverManagement.controller.management.http: org.jboss.msc.service.StartException in service jboss.serverManagement.controller.management.http: WFLYSRV0083: Failed to start the http-interface service at org.jboss.as.server.mgmt.UndertowHttpManagementService.start(UndertowHttpManagementService.java:269) at org.jboss

问题 I want to ask what is the reason to use Facade Pattern when access EJB Session Bean. In my Netbeans 6.9.1, if I do New > Sessions Bean for Entity Classes , and let say that I select User entity, then Netbeans would generate this code AbstractFacade.java public abstract class AbstractFacade<T> { private Class<T> entityClass; public AbstractFacade(Class<T> entityClass) { this.entityClass = entityClass; } protected abstract EntityManager getEntityManager(); public void create(T entity) {

问题 I need to convert a traditional J2EE web application into a new Maven web project. In traditional project JSPs are under WebApp/jsps folder, JavaScript & CSS files under WebApp/scripts folder, image under WebApp/images folder, .properties files under WebApp/resources folder. In the Maven project where would each of those file types go? Should I create folders under src/main/webapp such as: src/main/webapp/jsps , src/main/webapp/images , src/main/webapp/resources … etc and copy the files from

问题 I want to insert links into XML via RESTeasy / JAXB . I tried to use the documentation for my code, but that did not work, so I just coded the given examples in the documentation: it still does not work and I have no idea why. Background: To implement the HATEOAS principles into my JBoss RESTEasy API I have to insert links into my JAXB XML results, so clients can navigate through the API. I am now trying to understand how to do that, but I am not sure if the documentation is full of errors or

问题 Given: a Java EE 5 web app that has a web.xml that has a snippet like <context-param> <description>c</description> <param-name>a</param-name> <param-value>b</param-value> </context-param> What would I need to do to move that context-param specification into an annotation based strategy. 回答1: You can find all javax.servlet annotations in the javax.servlet.annotation package summary: @HandlesTypes This annotation is used to declare the class types that a ServletContainerInitializer can handle.

问题 I have a JavaEE project that makes use of multiple persistence units. Is there any way to specify which persistence unit a particular JPA Entity belongs to? Some entities are in one data source, while others are in my second data source. Is there a way to differentiate between the two using annotations? 回答1: To specify which persistent unit an Entity belongs to, use the persistence.xml file: <persistence version="2.0" xmlns="http://java.sun.com/xml/ns/persistence" xmlns:xsi="http://www.w3.org

问题 I have a Dynamic Web Project in Eclipse which has a dependency to another Java project in my workspace. When running the web project in the build-in Tomcat server, I've added the project dependency to the class path in the run configuration . I would like to create a WAR for deploying the web project on an external server. The dependency Java project is added to the Java Build path in Eclipse, but when I export an WAR-file the library is not included. The Java project is also selected in the