JAX-RS

If one of you RESTful Web Service Endpoints built with Jersey JAX-RS needs to initiate image download, you can use the following example to let user download an image stored on your server  when they access a certain web service end point. The below example downloads a PNG image specified by @Produces(“image/png”) but you can easily…

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We can use @HeaderParam annotation to read the Request HTTP Headers when building RESTFul Web Services. And knowing how to use @PathParam and @QueryParam annotations, the use of @HeaderParam annotation becomes very obvious. We just use it the same way as we use the @QueryParam for example. JAX-RS @HeaderParam Annotation Code Example. JAX-RS gives us a couple of ways to…

Read More JAX-RS @HeaderParam. Reading Request Headers.

Earlier I have shared with you how to use JAX-RS to access HTTP GET Request and how extract URI Query Parameters and how to read Path Parameters. In this blog post I am going to share with you how to handle HTTP POST request and how to read the content of HTTP Request Body as…

Read More Jersey HTTP Post Example

@QueryParam annotation allows us to read the request parameter values which were passed as a part of URL query string for example: site.com/api/users/r4ghtaf43c3n/messages?start=1&limit=50 where site.com is your web site domain name, /api/users/ is the path to your Root Resource, r4ghtaf43c3n is the value of specific user id and can be read with @ParthParam annotation, /messages is…

Read More JAX-RS @QueryParam. Reading URL Query Parameters.

In this blog post I am going to share with you how to handle HTTP GET request in your Java Web Service created with Jersey framework and how to response back with XML or JSON Response. If you do not have your Java RESTful Web Service created yet please follow the below link to a…

Read More Jersey HTTP GET Example