JAVA EXAMPLE PROGRAMS

JAVA EXAMPLE PROGRAMS

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How to pass header parameters as method inputs in JAX-RS restful web services?


In this page you can see an example to pass http header info as a method input using @HeaderParam annotation.

In the previous examples we have given details of application setup, dependencies, web.xml file configurations: If you want to know about these configuration, please refer these:

Restful web services using RESTEasy hello world example.
Restful web services using Jersey hello world example.

package com.java2novice.restful;

import javax.ws.rs.GET;
import javax.ws.rs.HeaderParam;
import javax.ws.rs.Path;
import javax.ws.rs.core.Response;

@Path("/http-header")
public class HttpHeaderService {

	@GET
	@Path("query")
	public Response queryHeaderInfo(@HeaderParam("Cache-Control") String ccControl,
										@HeaderParam("User-Agent") String uaStr){
		
		String resp = "Received http headers are Cache-Control: "+ccControl+
						"<br>User-Agent: "+uaStr;
		return Response.status(200).entity(resp).build();
	} 
}

In the above example, if you use "http://localhost:8080/RestfulWebServices/http-header/query" URI pattern, here is the output:


Output:
Received http headers are Cache-Control: max-age=0
User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_9_2) AppleWebKit/537.36 (KHTML, like Gecko) 
			Chrome/38.0.2125.104 Safari/537.36
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Restful Web Services Examples

  1. Restful web services using RESTEasy hello world example.
  2. Restful web services using Jersey hello world example.
  3. JAX-RS @Path annotation example
  4. JAX-RS @Path annotation with regular expression match example
  5. JAX-RS @PathParam annotation example
  6. JAX-RS @QueryParam and @DefaultValue annotations example
  7. JAX-RS @MatrixParam annotation example
  8. How to read multiple values of a query paramter in JAX-RS restful web services?
  9. How to pass header parameters as method inputs in JAX-RS restful web services?
  10. How to read header parameters in JAX-RS restful web services?
  11. JAX-RS @FormParam annotation example
  12. How to upload file using Jersey restful web services?
  13. How to download file using java restful web services?
  14. XML based Restful web service with RESTEasy and JAXB.
  15. XML based Restful web service with Jersey and JAXB.
  16. Json based Restful web service with RESTEasy, Jettison and JAXB
  17. Json based Restful web service with RESTEasy and Jackson
  18. Json based Restful web service with Jersey and Jackson
  19. How to input json request with Jersey and Jackson?
  20. Java client for restful web service using java.net package
  21. Java client for restful web service using Jersey API
  22. Java restful webservices with HTTP basic authentication.
Knowledge Centre
Can we override static method?
We cannot override static methods. Static methods are belogs to class, not belongs to object. Inheritance will not be applicable for class members
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Reference: Java™ Platform Standard Ed. 7 - API Specification | Java is registered trademark of Oracle.
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