java-ee

问题 I'm trying to figure out what the best options are for developing a RESTful web application with Java EE 6. For example, I want to be able to interpret a URL like so: GET www.myapp.com/customers/1 - returns a web page displaying details about a customer with id 1. The only two options I can think of are Using Spring MVC 3 Using a JAX-RS specification that allows you to render views - I heard RESTEasy integrates with Spring MVC? Are there any other frameworks that will allow you to develop web

问题 I testing my DAO, but it didn't work. The following error occurs: Tests in error: testAccountOperations(com.tsekhan.rssreader.dao.HibernateControllerTest): Error creating bean with name 'com.tsekhan.rssreader.dao.HibernateControllerTest': Injection of autowired dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Could not autowire field: com.tsekhan.rssreader.dao.HibernateController com.tsekhan.rssreader.dao.HibernateControllerTest

问题 I testing my DAO, but it didn't work. The following error occurs: Tests in error: testAccountOperations(com.tsekhan.rssreader.dao.HibernateControllerTest): Error creating bean with name 'com.tsekhan.rssreader.dao.HibernateControllerTest': Injection of autowired dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Could not autowire field: com.tsekhan.rssreader.dao.HibernateController com.tsekhan.rssreader.dao.HibernateControllerTest

问题 How can I customized the location of logback.xml in Spring Boot using application.properties? I tried below but is not working. application.properties logging.config = /home/dev-01/Documents/logback.xml It is working if the logback.xml is located in the resource folder, but not working if it is located outside the project. It is also working if the I supply as environment variable like -Dlogging.config=/home/dev-01/Documents/logback.xml 回答1: Below construct worked for me (but I used relative

问题 I need to maintain a simple counter that is unique within the application, for all users and all nodes in a clustered environment. I thought about using the singleton session bean annotation javax.ejb.Singleton like so: package foo; import javax.ejb.Singleton; @Singleton public class Bean { private int counter; [...] } This looks simple, but I could not find an answer if this works as desired in a clustered environment. Would every node of the cluster have it's own instance or not? Of course

问题 I would like to do something like that: An object ReportingFile that can be a LogRequest or a LogReport file. ( both got the same structure) An object Reporting containing for one logRequest, a list of logReport with a date. I tryed to set an EmbededId, that would be an attribute of the logRequest. And that's the problem i got. I don't arrive to mannage embedded id. ( http://docs.jboss.org/hibernate/stable/annotations/reference/en/html_single/#entity-mapping-identifier ) If you have a clue on

问题 I would like to do something like that: An object ReportingFile that can be a LogRequest or a LogReport file. ( both got the same structure) An object Reporting containing for one logRequest, a list of logReport with a date. I tryed to set an EmbededId, that would be an attribute of the logRequest. And that's the problem i got. I don't arrive to mannage embedded id. ( http://docs.jboss.org/hibernate/stable/annotations/reference/en/html_single/#entity-mapping-identifier ) If you have a clue on

问题 I'm dealing with a system that runs a Java application per customer in its own JVM. We've got about a half dozen dedicated servers that are running close to 100 JVMs total now and sets of custom scripts for managing these JVMs. This setup is really showing its age at this point: managing that many JVMs is becoming a monitoring/management nightmare and we are constantly dealing with heap sizing issues. We'd like to move to a more modern approach and just run a bunch of applications in a single

问题 I am looking for a way to compile CSS LESS files on the server side on demand during development. For example if the browser makes a request to /assets/css/foo.css I want the server to notice that there is an /assets/css/foo.less file and then to have this file complied and the resulting css returned. I am guessing there must be a LESS servlet somewhere that can do this? I am running tomcat 7 with Spring MVC application How do I configure a Java Web App to do on the fly LESS compilation? 回答1:

问题 I am looking for a way to compile CSS LESS files on the server side on demand during development. For example if the browser makes a request to /assets/css/foo.css I want the server to notice that there is an /assets/css/foo.less file and then to have this file complied and the resulting css returned. I am guessing there must be a LESS servlet somewhere that can do this? I am running tomcat 7 with Spring MVC application How do I configure a Java Web App to do on the fly LESS compilation? 回答1: