Handle java object in javascript - Stack Overflow

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I am using Ajax in my JavaScript and that sets an array of objects of following class in a response:

public class RetrieveTempSecVersions {

    private String templateName;
    private int[] versionNumber;

    public String getTemplateName() {
        return templateName;
    }

    public void setTemplateName(String templateName) {
        this.templateName = templateName;
    }

    public int[] getVersionNumber() {
        return versionNumber;
    }

    public void setVersionNumber(int[] i) {
        this.versionNumber = i;
    }
}

using:

aoRes.setContentType("text/xml");
aoRes.setHeader("Cache-Control", "no-cache");
aoRes.getWriter().write(template[]);

Now I want to read all the elements from template array and its details into my JavaScript.

Can anyone help me in how to do that?

I am using Ajax in my JavaScript and that sets an array of objects of following class in a response:

public class RetrieveTempSecVersions {

    private String templateName;
    private int[] versionNumber;

    public String getTemplateName() {
        return templateName;
    }

    public void setTemplateName(String templateName) {
        this.templateName = templateName;
    }

    public int[] getVersionNumber() {
        return versionNumber;
    }

    public void setVersionNumber(int[] i) {
        this.versionNumber = i;
    }
}

using:

aoRes.setContentType("text/xml");
aoRes.setHeader("Cache-Control", "no-cache");
aoRes.getWriter().write(template[]);

Now I want to read all the elements from template array and its details into my JavaScript.

Can anyone help me in how to do that?

• java
• javascript
• ajax

Share Improve this question Follow edited Apr 3, 2012 at 22:42 рüффп 5,4483434 gold badges7373 silver badges121121 bronze badges asked Feb 25, 2011 at 8:45 VarunVarun 5,0611212 gold badges5656 silver badges8686 bronze badges

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3 Answers 3

Sorted by: Reset to default 3

Have you considered using Google Web Toolkit? With GWT you have a number of choices for sending objects between client and server, including GWT RPC, RequestFactory, and JSON.

You need to transform your array of Java objects into something JavaScript understands. There are two obvious choices : XML (AJAX means Asynchronous Javascript And XML), or JSON. JSON is probably easier and more lightweight.

All the AJAX JavaScript libraries (JQuery, etc.) have good support for JSON. See http://api.jquery./jQuery.getJSON/ for example.

There are also several Java APIs to transform Java objects into JSON (look at GSON for example).

You'll have to modify the content type of the response : it's not text/html, but application/json if you use JSON.

As already said jQuery is very good for ajax manipulation.

Another good framework I liked to use was DWR: https://github./directwebremoting/dwr

It is quite lighter than jQuery (because only focused on Ajax calls and not ponents) and very easy to understand.

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