How to implement CORS in Java RESTful webservices?

Question

I am new to Java RESTful webservices.

Here is my Java code:

@Path("ConversionService")
public class FeetToInchAndInchToFeetConversionService {

     @GET
     @Path("/InchToFeet/{i}")
      @Produces(MediaType.TEXT_XML)
      public String convertInchToFeet(@PathParam("i") int i) {

        int inch=i;
        double feet = 0;
        feet =(double) inch/12;

        return "<InchToFeetService>"
        + "<Inch>" + inch + "</Inch>"
          + "<Feet>" + feet + "</Feet>"
         + "</InchToFeetService>";
      }

I am able to run the service and can see the output.

Here I need a help in implementing CORS in my service, can you please tell me how to write CORS in my Java code?

Do we need to write the jersy filter in separate class or is there any possibility we can directly include the "Access-Control-Allow-Origin", "*" in my Java code.

danielkelemen · Accepted Answer · 2014-06-13 11:18:44Z

1

You can access the HttpServletResponse simply by adding as a context parameter:

public String convertInchToFeet(@PathParam("i") int i, @Context HttpServletResponse response) {
    response.setHeader("Access-Control-Allow-Origin", "*");
    response.setHeader("Access-Control-Allow-Credentials", "true");
    response.setHeader("Access-Control-Allow-Methods", "GET, POST, PUT, DELETE, OPTIONS, HEAD");
    //...

In jQuery:

$.ajax({
    crossDomain: true,
    //...

edited Jun 13, 2014 at 11:18

answered Jun 12, 2014 at 14:46

danielkelemen

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1 Comment

Raj Over a year ago

after adding the header also it is not working, im getting same cross origin domain error. im calling the service from javascript, do we need to add the same in java script also

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