Java REST clients using the Apache HttpClient library Header headers = httpResponse.getAllHeaders() įor (int i = 0 i < headers.length i++) HttpEntity entity = httpResponse.getEntity() HttpResponse httpResponse = httpclient.execute(target, getRequest) HttpGet getRequest = new HttpGet("/forecastrss?p=80020&u=f") HttpHost target = new HttpHost("", 80, "http") * Try this Twitter API URL for another example (it returns JSON results):ĭefaultHttpClient httpclient = new DefaultHttpClient() * This executes a call against the Yahoo Weather API service, which is * A simple Java REST GET example using the Apache HTTP library.
#Weather project in java with source code code
Here's the source code for this first example class. Hopefully you can try this against different URLs where you can examine the header information in more detail. I wish I could have provided this demo with the OpenSSO demos I wrote a few years ago (see my PHP OpenSSO REST API examples), because the OpenSSO REST API made extensive use of header information.
#Weather project in java with source code how to
It also shows how to get all of the headers from the web service you're calling. This REST client uses the following Apache HttpClient classes: That service actually returns information in an RSS format, but if you don't mind parsing that XML, it's an easy way to get weather updates. This first example shows a combination of these Apache HttpClient classes used to get information from the Yahoo Weather API. But hopefully these examples will make other POST or other RESTful examples easier to read. The REST client examples I share here are based on the examples on the HttpClient website I've mostly just tried to make them a little easier to read, and add some additional documentation to them.Īlso, I'm just focusing on HTTP GET requests in this article, because I'm writing real-world code to hit the Twitter REST API, and all I need right now are GET requests. In this article I share some source code for some simple Java REST clients that use the Apache HttpClient project. I started writing some Java REST (RESTful) clients lately, and in doing so, I've been looking at several different ways to do this, including using the Apache HttpClient project, the Jersey project, Apache CXF, and more.