Spring 3: RESTful Web service Support Part-2

Note: You really should not have a horrible static map containing state within a controller (like I do below), I am only doing it now because this is an example, and I want to keep it simple and not digress into a full blown application. If I have time over the next week or so, I'll remove that map of data and just create an embedded DB or something.

01	package javaitzen.spring.rest.controller;

02

03	import java.util.Map;

04	import java.util.TreeMap;

05

06	import javaitzen.spring.rest.User;

07

08	import org.springframework.stereotype.Controller;

09	import org.springframework.web.bind.annotation.PathVariable;

10	import org.springframework.web.bind.annotation.RequestBody;

11	import org.springframework.web.bind.annotation.RequestMapping;

12	import org.springframework.web.bind.annotation.RequestMethod;

13	import org.springframework.web.bind.annotation.ResponseBody;

14

15	@Controller

16	public class UsersController {

17

18	private static Map<> users = new TreeMap<>();

19

20	@RequestMapping(value="/users/{firstName}",method=RequestMethod.GET)

21	@ResponseBody public User getUser(@PathVariable("firstName")String user) {

22	System.out.println("retrieve");

23	User theUser = someExampleData().get(user);

24	return theUser;

25

26

}

27

28	@RequestMapping(value="/users/",method=RequestMethod.POST)

29	@ResponseBody public User createUser(@RequestBody User user) {

30	System.out.println("create");

31	users.put(user.getFirstName(), user);

32	return user;

33

}

34

35	@RequestMapping(value="/users/{firstName}",method=RequestMethod.PUT)

36	@ResponseBody public User updateUser(@PathVariable("firstName")String name, @RequestBody User user) {

37	System.out.println("update");

38	users.put(user.getFirstName(), user);

39	return user;

40

}

41

42	@RequestMapping(value="/users/{firstName}",method=RequestMethod.DELETE)

43	@ResponseBody public voiddeleteUser(@PathVariable("firstName")String name) {

44	System.out.println("delete");

45	users.remove(name);

46

47

}

48

49

/**

50	* Some example data.

51

*

52	* @return the map

53

*/

54	private Map<> someExampleData() {

55	users.put("Bob", new User("Bob", "Smith", "bobs", "clean","simple", "code"));

56	users.put("John", new User("John", "Doe", "johnd", "large","complicated", "code"));

57	users.put("Mary", new User("Mary", "Smith", "marys","nice", "pretty", "code"));

58	return users;

59

}

60

}

You can view the results in your browser by simply going to the url. I am using weblogic, so mine looks like "http://localhost:7001/Spring3RESTFul-1/app/users/Mary" but depending on your deployment it could differ as long as you add "/app/users/Mary" to your context root you should get the following displayed. (if you are using firefox)