Total Pageviews

Monday, February 28, 2011

Calling remote service method using Javascript/JSON

Liferay enables us to call the methods using Javascript. There are various advantages of it, but the most useful is - we can call a method without refreshing a the portlet (without rendering), and we can display contents as per logic.



Step 1. Firstly, generate your service for your entity keeping remote-service="true"  in service.xml

Step 2. Write a method in ServiceImpl that you wish to call from Javascript.

Step 3. Build service using ant, from ext-impl.

Step 4. Deploy the whole project.

e.g. 
Step 5. Method will be available in ext-web/docroot/html/js/liferay/ext_service.js.

Step 6. Include js in the jsp file you need to call the method, as follows:

<script type="text/javascript" src="/html/js/liferay/ext_service.js"></script>
Step 7. Call method as follows in javascript:




This is it... All the best...

8 comments:

  1. Just wonder if you have any example of calling into a server method with Java object parameters rather than primitive type?

    E.g. your lifeIt() method on the server takes has this signature:

    likeIt(Token token, String postId)

    Where Token is just a user defined Java object?

    Thanks.

    ReplyDelete
  2. Can we access the same in custom portlet developed in plugins sdk(LR 5.2.x)

    ReplyDelete
  3. I have read your blog its very attractive and impressive. I like it your blog.


    JavaEE Training in Chennai JavaEE Training in Chennai

    Java Training in Chennai Core Java Training in Chennai Core Java Training in Chennai

    Java Online Training Java Online Training Core Java 8 Training in Chennai Java 8 Training in Chennai

    ReplyDelete
  4. You made some good points there. I did a search on the topic and found most people will agree with your blog. Java Training in Chennai

    ReplyDelete
  5. Somebody necessarily help to make severely posts I might state. This is the first time I frequented your website page and to this point? I surprised with the research you made to create this particular post extraordinary. Well done admin..
    PEGA Training in Chennai

    ReplyDelete
  6. Thanks for one marvelous posting! I enjoyed reading it; you are a great author. I will make sure to bookmark your blog and may come back someday. I want to encourage that you continue your great posts, have a nice weekend!

    Java Training in Bangalore

    ReplyDelete