Let's now create a test method for calling the previous web service that consumes form-encoded data. Open CourseManagementClient.java from the CourseManagementRESTClient project and add the following method:

  //Test addCourse method (Form-Encoded version) of CourseService 
  public static void testAddCourseForm() { 
 
    //create JAX-RS client 
    Client client = ClientBuilder.newClient(); 
 
    //Get WebTarget for a URL 
    WebTarget webTarget = 
 client.target("http://localhost:8600/CourseManagementREST/services/course/add"); 
 
    //Create Form object and populate fields 
    Form form = new Form(); 
    form.param("name", "Course-5"); 
    form.param("credits", "5"); 
 
    //Execute HTTP post method 
    Response response = webTarget.request(). 
        post(Entity.entity(form, 
         MediaType.APPLICATION_FORM_URLENCODED)); 
 
    //check response code. 200 is OK 
    if (response.getStatus() != 200) { 
      //Print error message 
      System.out.println("Error invoking REST Web Service - " + 
       response.getStatusInfo().getReasonPhrase() + 
          ", Error Code : " + response.getStatus()); 
      //Also dump content of response message 
      System.out.println(response.readEntity(String.class)); 
      return; 
    } 
 
    //REST call was successful. Print the response 
    System.out.println(response.readEntity(String.class)); 
  } 

Notice that the form data is created by creating an instance of the Form object and setting its parameters. The POST request is encoded with MediaType.APPLICATION_FORM_URLENCODED, which has the following value: "application/x-www-form-urlencoded".

Now, modify the main method to call testAddCourseForm. Then, run the application by right-clicking the class and selecting Run As | Java Application. You should see the success message (from addCourseSuccess.html) printed in the console.