SerfJ REST框架的示例代码

SerfJ 是一个最简单的框架用来开发Java的REST的Web应用。可帮助你开发优雅的MVC架构的应用，使用惯例重于配置的思路，无需配置文件和注解。

[代码]web.xml

01

<servlet>

02	<servlet-name>RestServlet</servlet-name>

03	<servlet-class>net.sf.serfj.RestServlet</servlet-class>

04	<load-on-startup>5</load-on-startup>

05	</servlet>

06

07	<servlet-mapping>

08	<servlet-name>RestServlet</servlet-name>

09	<url-pattern>/banks/*</url-pattern>

10	</servlet-mapping>

11

12	<servlet-mapping>

13	<servlet-name>RestServlet</servlet-name>

14	<url-pattern>/accounts/*</url-pattern>

15	</servlet-mapping>

[代码]serfj.properties

1	# Main package where looking for classes (controllers, serializers)

2	main.package=net.sf.serfj.test

[代码]Bank.java

01	publicclassBankextendsRestController {

02

@GET

03	publicvoidindex() {

04	// By default, this action redirects to index.jsp (or index.html or index.htm)

05

}

06

07

@GET

08	publicvoidshow() {

09	// Gets ID from URL /banks/1

10	String id =this.getId("bank");

11

12	// Gets account's ID from URL /banks/1/accounts/2

13	String accountId =this.getId("account");

14

15	// Gets the account

16	Account account =// Code that gets the account 2 from bank 1

17

18	// Put account into the request so the page will be able to use it

19	this.addObject2Request("account", account);

20

21	// By default, this action redirects to show.jsp (or show.html or show.htm)

22

}

23

24

@GET

25	publicvoidnewResource() {

26	// By default, this action redirects to new.jsp (or new.html or new.htm)

27

}

28

29

@GET

30	publicvoidedit() {

31	// By default, this action redirects to edit.jsp (or edit.html or edit.htm)

32

}

33

34

@POST

35	publicvoidcreate() {

36	// By default, this action redirects to create.jsp (or create.html or create.htm)

37

}

38

39

@PUT

40	publicvoidupdate() {

41	// Gets bank's ID

42	String id =this.getId("bank");

43

44	Bank bank =// Code that gets the bank object

45

46	// Gets new name for the bank

47	String name =this.getStringParam("name");

48

49	// Updating the bank

50	// ... Code that updates the bank's information

51

52	// By default, this action redirects to update.jsp (or update.html or update.htm)

53

}

54

55

@DELETE

56	publicvoiddelete() {

57	// By default, this action redirects to delete.jsp (or delete.html or delete.htm)

58

}

59

60

@GET

61	publicvoidsomeAction() {

62	// By default, this action redirects to someAction.jsp (or someAction.html or someAction.htm)

63

}

64

}

[代码]Account.java

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01	publicclassAccountextendsRestController {

02

@GET

03	publicvoidindex() {

04	// By default, this action redirects to index.jsp (or index.html or index.htm)

05

}

06

07

@GET

08	publicvoidshow() {

09	// By default, this action redirects to show.jsp (or show.html or show.htm)

10

}

11

12

@GET

13	publicvoidnewResource() {

14	// By default, this action redirects to new.jsp (or new.html or new.htm)

15

}

16

17

@GET

18	publicvoidedit() {

19	// By default, this action redirects to edit.jsp (or edit.html or edit.htm)

20

}

21

22

@POST

23	publicvoidcreate() {

24	// By default, this action redirects to create.jsp (or create.html or create.htm)

25	// But I want to render another page!... easy

26	this.renderPage("mypage.jsp");

27

}

28

29

@PUT

30	publicvoidupdate() {

31	// By default, this action redirects to update.jsp (or update.html or update.htm)

32	// But I want to render another page... from another controller!... easy

33	this.renderPage("bank","another_page.jsp");

34

}

35

36

@DELETE

37	publicvoiddelete() {

38	// By default, this action redirects to delete.jsp (or delete.html or delete.htm)

39	// Well, if something happens, I want to redirect to mypage.jsp

40	if(somethingHappens) {

41	this.renderPage("mypage.jsp");

42

}else{

43	// Default page

44	this.renderPage();

45

}

46

}

47

48

/**

49	* If this method is called as /accounts/1/accountBalance.xml, then the balance object will

50	* be serialized as an XML, whereas if it's called as /accounts/1/accountBalance.json, the

51	* object will be serialized as a JSON object.

52

*/

53

@POST

54	publicBalance accountBalance() {

55	// Gets account's Id

56	String id =this.getId("account");

57

58	// Calculate balance

59	BalanceManager manager =newBalanceManager();

60	Balance balance = manager.getBalance(id);

61	this.serialize(balance);

62

}

63

}