How to get list as response from jersey2 client

Question

I want to know how I can extract a List as response from the jersey-2.0 client.

I have already tried this,

Li         


        

Answer 1

1) Take your Response in the then parse the Response Object using readEntity() method.

List<String> list = client.target(url).
request(MediaType.APPLICATION_JSON).get(Response.class).readEntity(new GenericType<List<String>>() {
});

Answer 2

First add jackson dependency

<dependency>
    <groupId>org.glassfish.jersey.media</groupId>
    <artifactId>jersey-media-json-jackson</artifactId>
    <version>2.27</version>
</dependency>

Then create Client Config

ClientConfig config = new ClientConfig();
config.register( JacksonFeature.class );

Finally create the client through the ClientConfig

List<String> list = ClientBuilder.newClient( config )
               .target( uri )
               .request()
               .get( Response.class )
               .readEntity( List.class );

Answer 3

You can get your service response as Response class object and, then parse this object using readEntity(...) method.

Here is a quick code snippet:

List<String> list = client
                      .target(url)
                      .request(MediaType.APPLICATION_JSON)
                      .get(Response.class)
                      .readEntity(new GenericType<List<String>>() {});
/* Do something with the list object */

Answer 4

String listString= serviceResponse.readEntity(String.class);
Gson gson=new Gson();
Type type = new TypeToken<List<String>>(){}.getType();
List<String> list = gson.fromJson(listString, type);

Get response string and then convert to List by using gson library