How to integrate ExtJS with Spring IOC? I was able to integrate with Spring MVC?
I've done this type of integration, but I encountered some problems. The best solution for my case was:
The entire system was created using Rest requests where the ExtJS
through URL access query performed in the main application.
The structure was created using ExtJS MVC model. Helping build the models and structure requests.
A project like this is the Sonatype Nexus.
http://www.sonatype.org/nexus/
Related
There is scenario in my project where I have to share the data from one project to another both the project are running on different server.
I am using JSF and Spring in my project where spring use only for Data base things.
I want to know there is a any way like cross context to share the data or context of two different server.
I am using tomcat 7.0.67, spring 3.3.0 and jsf 1.2
I have achieve sharing data between to different server using the restful web service
i'm working on a project involving Spring Boot for creating a REST webservice and ExtJS 5 for Front End, Frontend and backend are developped independentely, so i've managed to avoid CORS problems, i would like to know Best practices concerning deployment in this case. i would like to keep the backend independent of the frontend by packaging frontend in its own .war and so for backend, is there any problems in following this practice.
You can avoid CORS problem if you deploy front-end and back-end to the same domain but different context (domain.com/front, domain.com/back).
In other case you need CORS, please take a look at the last release Spring Boot 1.3.M1:
https://spring.io/blog/2015/06/12/spring-boot-1-3-0-m1-available-now
The recently released Spring Framework 4.2 RC1 provides first class support for CORS out-of-the-box, giving you an easier and more powerful way to configure it than typical filter based solutions.
Source post: https://spring.io/blog/2015/06/08/cors-support-in-spring-framework
I am developing an accounts related project using spring mvc. I have problem in creating controller classes. Like Action class in struts framework do we need to create separate controller for spring ie (individual controller for every UI pages). I stuck up here. How can I create a controller class? based on module or by UI pages?
If I correctly understand your question, You want to know the design of serving request. It is not necessary or a good practice to create controller for serving each request(page). I think you should go for module based controllers. You can follow MVC architecture to have a better understanding on coupling requests with controllers.Spring have mvc support. There are numerous tutorials in spring mvc.
Here is a demo of spring MVC.
I am a newbie in web development. I'm using servlets and JSP for web development.However, I've learnt lately that Spring Framework is apt for that which incorporate servlets, jsp etc. So, my question is that can I now run my program using Spring framework ? Like, I have 2 jsp codes, and 1 servlet class. So, how can I migrate the code in Spring Framework ? what additional things or codes do I need to maintain ?
Migrating an existing J2EE project is easy.
You will get rid of a lot of "boilerplate" code in the process. The easiest way to do it in my opinion will be to use SpringToolSuite.
Import your project in STS and then add "Maven" nature to it. In the pom configuration you can edit all the jars that you need and mention the spring framework. Once all this is setup it will be just a matter of minutes to change the code if it is small.
You can follow these video tutorials about maven and spring to learn about it.
JavaBrains
There are more tutorials by "New Circle training" on youtube for the same.
I would also recommend you to read Spring in action 3rd edition-Manning
This book is a must and the best way to learn spring framework. Hope this helps
Given:
Spring 3.0 mvc has excellent REST support with one of the representation being JSON.
GWT simplifies development as UI is developed in java. But by default it uses RPC for client server interaction. But there is an option to use JSON.
Questions:
Can you share experiences with using Spring 3.0 mvc with GWT ?
What is the best approach to integrate these two frameworks?
Is the default GWT's MVP architecture only for client side and does it work well with JSON?
Thanks
Can you share experiences with using Spring 3.0 mvc with GWT ?
Yes. We've successfully built a whole large application around GWT and Spring MVC (1500 source files, 6 months in development).
Spring was the key to the project's success. Only with Spring we were able to test individually some pieces of the application on the server side.
What is the best approach to marry these two frameworks?
Ignore the default Servlet used by GWT and instead create your own Spring controller to handle incoming GWT-RPC requests. This blog post was the key to integrating the two techs.
We also successfully integrated other components: Flash for animated charts and third-party Javascript components for other stuff. These communicate with the server through JSON. So you have two or more kinds of URLs:
the *.rpc urls are for GWT components and are served by the Spring controller for gwt
the *.json urls are for other components and are served by another Spring controller.
Also, in our case, we shunned configuration with annotations and instead preferred configuration with the good old Spring XML files. They make it much more clear what's going on. Except for the #Required annotation; it's great to find spring beans that should be connected but aren't.
Is the default GWT's MVP architecture only for client side and does it work well with JSON?
GWT's MVP architecture works best if you follow the guide lines. Use GWT-RPC communication as Google suggests.
You can still have JSON for other client-side components.
Try this solution: GWT and Spring MVC Integration
It uses 3 classes. Its very simple, declarative and clear.
It's stupid to mix Spring MVC and GWT. Also it's stupid to mix Spring MVC and JSF... It's stupid to mix 2 MVC (MVP) frameworks together. But you can use Spring DI and GWT for sure!
You may want to check out Spring Roo. It will help you get started quickly with Spring MVC, especially when dealing with RESTful URLs. It also provides a means to automatically set up GWT "scaffolding" (GWT code to interact with the Spring MVC backend). Hope it helps!