How to consume REST URLs using Spring MVC?

Question

I have developed few RESTful methods and exposed them via Apache Cxf

I\'m developing the client side application using Spring MVC and I\'m looking for a simple examp

Answer 1

Spring provides simple wrapper to consume RESTful services called RestTemplate. It performs path variable resolution, marshalling and unmarshalling:

Map<String, Integer> vars = new HashMap<String, Integer>();
vars.put("hotelId", 42);
vars.put("roomId", 13);
Room room = restTemplate.getForObject(
  "http://example.com/hotels/{hotelId}/rooms/{roomId}", 
  Room.class, vars);

Assuming Room is a JAXB object which can be understood by The RestTemplate.

Note that this class has nothing to do with Spring MVC. You can use it in MVC application, but also in a standalone app. It is a client library.

See also

• REST in Spring 3: RestTemplate

Answer 2

Use path variables to consume REST data. For example:

https://localhost/products/{12345}

This pattern should give you the detail of the product having product id 12345.

@RequestMapping(value="/products/{productId}")
@ResponseBody
public SomeModel doProductProcessing(@PathVariable("productId") String productId){
//do prpcessing with productid
return someModel;
}

If you want to consume Rest Service from another service then have a look at:

http://static.springsource.org/spring/docs/3.0.x/javadoc-api/org/springframework/web/client/RestTemplate.html

and

http://www.informit.com/guides/content.aspx?g=java&seqNum=546