NickName:LBOSS Ask DateTime:2015-07-16T19:20:23

Consume an OAuth-secured REST webservice using Spring oauth2

I want to consume a REST webservice from a server which protects his resources using oauth2.

I use Spring boot (JHipster).

To do this i have in SecurityConfiguration class this :

@Value("${oauth.resource:http://sercverUsingOAuth2}")
private String baseUrl;

@Value("${oauth.authorize:http://sercverUsingOAuth2/rest/oauth/token}")
private String authorizeUrl;

@Value("${oauth.token:http://sercverUsingOAuth2/rest/oauth/token}")
private String tokenUrl;

@Bean
public OAuth2RestOperations oauth2RestTemplate() {
    AccessTokenRequest atr = new DefaultAccessTokenRequest();
    return new OAuth2RestTemplate(resource(),
            new DefaultOAuth2ClientContext(atr));
}

@Bean
protected OAuth2ProtectedResourceDetails resource() {
    AuthorizationCodeResourceDetails resource = new AuthorizationCodeResourceDetails();
    resource.setAccessTokenUri(tokenUrl);
    resource.setUserAuthorizationUri(authorizeUrl);
    resource.setClientId("client_id");
    resource.setClientSecret("client_secret");
    resource.setGrantType("grant_type");
    return resource;
}

This class (SecurityConfiguration) is annoted using :

@Configuration
@EnableWebSecurity
@EnableOAuth2Client

And this is my controller (Spring MVC) :

@RestController
@RequestMapping("/consume")
public class MyContrtoller {

@Inject
private OAuth2RestOperations oauth2RestTemplate;

@RequestMapping(value = "/oauth2", method = RequestMethod.GET, produces = MediaType.APPLICATION_JSON_VALUE)
public List<DataModel> getProducts() {

    ResponseEntity<MyModel> forEntity = oauth2RestTemplate
            .getForEntity("http://sercverUsingOAuth2/rest/resourceToConsume",
                    MyModel.class);
    return forEntity.getBody().getData();
}

}

However when i want to consume my webservice (http://myHost/consume/oauth2) i get this Exception :

    org.springframework.security.oauth2.client.resource.OAuth2AccessDeniedException:
 Unable to obtain a new access token for resource 'null'. The provider manager
 is not configured to support it.

I have googled and i found this :

But it doesn't help me.

Thanks.

Copyright Notice：Content Author:「LBOSS」，Reproduced under the CC 4.0 BY-SA copyright license with a link to the original source and this disclaimer.
Link to original article：https://stackoverflow.com/questions/31452729/consume-an-oauth-secured-rest-webservice-using-spring-oauth2