Category: Java

jersey tutorials

JAX-RS (REST) / Jersey

Creating Custom JAX-RS MessageBodyReader

You can use a JAX-RS MessageBodyReader to deserialize an entity on the server or client. Jersey already provides default deserializers like json and xml. This is just a demonstration how you can build your...
jersey tutorials

JAX-RS (REST) / Jersey

Creating Custom JAX-RS MessageBodyWriter

A JAX-RS MessageBodyWriter is responsible for converting Java types to a stream. In this example we are creating a JAX-RS MessageBodyWriter that produces text/html. This class may be annotated using the @Produces annotation to...
java tutorials

Java

How to parse User-Agent using Java

In this tutorial we show you how to parse a user-agent string to get the information about the browser and operating system. We compare two open source libraries with each other and list the...
jersey tutorials

JAX-RS (REST) / Jersey

JAX-RS @BeanParam Example

The @BeanParam annotation is added to the JAX-RS 2.0 specification. It allows you to inject a pojo whose property methods or fields are annotated with any of the injection parameters supported by JAX-RS. To...
jersey tutorials

JAX-RS (REST) / Jersey

JAX-RS @CookieParam CRUD Example

Cookies are used to set up a session between the client and server or to remember the identity and user preferences between requests. These cookie values are transmitted to and from the client and...
jersey tutorials

JAX-RS (REST) / Jersey

JAX-RS @FormParam Example

We can post an HTML form directly to our JAX-RS service, we can read the request bodies by mapping the fields using the @FormParam annotation. Lets show how this works by a simple example....
jersey tutorials

JAX-RS (REST) / Jersey

Get HTTP Header Parameter in JAX-RS

When you need to get HTTP Header parameters with JAX-RS, you have a couple of options. You can use the @HeaderParam annotation provided by JAX-RS, Inject the HttpHeaders directly or inject the HttpServletRequest. Let’s...