SerfJ REST框架的示例代码

[1].[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>

[2].[代码] serfj.properties 

1 # Main package where looking for classes (controllers, serializers)
2 main.package=net.sf.serfj.test

[3].[代码] Bank.java 

01 public class Bank extends RestController {
02     @GET
03     public void index() {
04         // By default, this action redirects to index.jsp (or index.html or index.htm)
05     }
06
07     @GET
08     public void show() {
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     public void newResource() {
26         // By default, this action redirects to new.jsp (or new.html or new.htm)
27     }
28
29     @GET
30     public void edit() {
31         // By default, this action redirects to edit.jsp (or edit.html or edit.htm)
32     }
33
34     @POST
35     public void create() {
36         // By default, this action redirects to create.jsp (or create.html or create.htm)
37     }
38
39     @PUT
40     public void update() {
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     public void delete() {
57         // By default, this action redirects to delete.jsp (or delete.html or delete.htm)
58     }
59
60     @GET
61     public void someAction() {
62         // By default, this action redirects to someAction.jsp (or someAction.html or someAction.htm)
63     }
64 }

[4].[代码] Account.java 

01 public class Account extends RestController {
02     @GET
03     public void index() {
04         // By default, this action redirects to index.jsp (or index.html or index.htm)
05     }
06
07     @GET
08     public void show() {
09         // By default, this action redirects to show.jsp (or show.html or show.htm)
10     }
11
12     @GET
13     public void newResource() {
14         // By default, this action redirects to new.jsp (or new.html or new.htm)
15     }
16
17     @GET
18     public void edit() {
19         // By default, this action redirects to edit.jsp (or edit.html or edit.htm)
20     }
21
22     @POST
23     public void create() {
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     public void update() {
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     public void delete() {
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     public Balance accountBalance() {
55        // Gets account's Id
56        String id = this.getId("account");
57
58        // Calculate balance
59        BalanceManager manager = new BalanceManager();
60        Balance balance = manager.getBalance(id);
61        this.serialize(balance);
62     }
63 }