TOTD #58: Jersey and GlassFish - how to process POST requests ?

Lets extend the Jersey endpoint ( href="http://blogs.sun.com/arungupta/entry/totd_56_simple_restful_web">TOTD#
56) and client ( href="http://blogs.sun.com/arungupta/entry/totd_57_jersey_client_api">TOTD#
57) such that it can accept a POST request and then invoke it.

1. Add a new method to "MyResource.java" from href="http://blogs.sun.com/arungupta/entry/totd_56_simple_restful_web">TOTD#
   56 as:
   
   
   
   style="text-align: left; background-color: rgb(204, 204, 255); width: 100%;"
   cellpadding="2" cellspacing="2">
       @POST
   
       @Consumes("application/json")
   
       @Produces("application/json")
   
       public Greeting postIt(Greeting
   greeting) {
   
          
   System.out.println("In POST: " + greeting.greeting);
   
          
   return greeting;
   
       }

   
   
   The first line indicates that the Java method will process HTTP POST
   requests. The second and third line shows that the method consumes and
   produces JSON data format.
   

2. Add a new method to "AppTest.java" from href="http://blogs.sun.com/arungupta/entry/totd_57_jersey_client_api">TOTD#
   57 as:
   
   
   
   style="text-align: left; background-color: rgb(204, 204, 255); width: 100%;"
   cellpadding="2" cellspacing="2">
       public void
   testPost() {
   
          
   Greeting result = createResource().
   
                  
   type("application/json").
   
                  
   post(Greeting.class, new Greeting("yo!"));
   
          
   assertTrue(result.greeting.equals("yo!"));
   
       }

   
   
   The main difference from the "testApp()" method is specifying the MIME
   type of the generated outbound request as "application/json".
   

3. Running the test as "mvn test" shows the following output:
   
   
   
   style="text-align: left; background-color: rgb(204, 204, 255); width: 100%;"
   cellpadding="2" cellspacing="2">
   Running org.glassfish.samples.AppTest
   
   1 * Out-bound request
   
   1 > GET
   http://localhost:8080/helloworld-webapp/webresources/myresource
   
   1 >
   
   1 < 200
   
   1 < X-Powered-By: Servlet/2.5
   
   1 < Transfer-Encoding: chunked
   
   1 < Content-Type:
   text/plain
   
   1 < Server: GlassFish/v3
   
   1 < Date: Tue, 25 Nov 2008 20:19:34 GMT
   
   1 <
   
   <?xml
   version="1.0" encoding="UTF-8"
   standalone="yes"?><greeting><greeting>Hi
   there!</greeting></greeting>
   
   1 * In-bound response
   
   1 * Out-bound request
   
   1 > POST
   http://localhost:8080/helloworld-webapp/webresources/myresource
   
   1 > Content-Type:
   application/json
   
   1 >
   
   {"greeting":"yo!"}
   
   1 < 200
   
   1 < X-Powered-By: Servlet/2.5
   
   1 < Transfer-Encoding: chunked
   
   1 < Content-Type:
   application/json
   
   1 < Server: GlassFish/v3
   
   1 < Date: Tue, 25 Nov 2008 20:19:34 GMT
   
   1 <
   
   {"greeting":"yo!"}
   
   1 * In-bound response
   
   Tests run: 2, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 1.191
   sec

   
   
   The output shows request/response messages when both the tests are run
   together. Here are some highlights:

1. "GET" and "POST" methods are clearly highlighted.
2. The two "Content-Type" headers with value "text/plain"
   and "application/json" are output from two tests. The output
   from POST method has two Content-Type headers, one for outbound request
   and another one for inbound response.
3. The body content of POST method is using JSON format.
   

Jersey and GlassFish
provides a complete server-side and client-side API and framework for
deploying and invoking RESTful Web service endpoints.



How are you using Jersey ?



Send all your questions to href="mailto:users@jersey.dev.java.net">users@jersey.dev.java.net.



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