Question

我是Spotify Web API的新手，我在通过客户端凭据流获取令牌时遇到了一些问题。

我可以使用以下配置在Advanced REST Client上实现请求： The request by Advanced REST Client

为了表示此请求，我实现了以下代码：

Rest Gateway模板：

public final class RestGatewayClient {

    private final List<ClientHttpRequestInterceptor> interceptors = new ArrayList<ClientHttpRequestInterceptor>();

    public void addHeader(String key, String value) {
        interceptors.add(new HeaderRequestInterceptor(key, value));
    }

    public static RestTemplate getOAuthTemplate() {
        List<ClientHttpRequestInterceptor> interceptors = new ArrayList<ClientHttpRequestInterceptor>();
        interceptors.add(new HeaderRequestInterceptor(Constants.SPOTIFY_HEADER_AUTH_KEY, Constants.SPOTIFY_HEADER_AUTH_VALUE));
        interceptors.add(new HeaderRequestInterceptor("Content-Type", "application/x-www-form-urlencoded"));

        RestTemplate template = new RestTemplate();
        template.setInterceptors(interceptors);

        return template;
    }

}

头部拦截器：

public class HeaderRequestInterceptor implements ClientHttpRequestInterceptor {

    private final String headerName;
    private final String headerValue;

    public HeaderRequestInterceptor(String headerName, String headerValue) {
        this.headerName = headerName;
        this.headerValue = headerValue;
    }

    @Override
    public ClientHttpResponse intercept(HttpRequest request, byte[] body, ClientHttpRequestExecution execution)
            throws IOException {

        HttpRequest wrapper = new HttpRequestWrapper(request);
        wrapper.getHeaders().set(headerName, headerValue);

        return execution.execute(wrapper, body);
    }

}

调用API的控制器：

@ResponseBody
    @RequestMapping(value = "/addTrackIntoPlaylist", method = RequestMethod.GET)
    public SpotifyOAuthTokenResource getAlbumTracks() {

        RestTemplate authTemplate = RestGatewayClient.getOAuthTemplate();
        String uri = Constants.SPOTIFY_API_AUTH__URI;

        MultiValueMap<String, String> payload = new LinkedMultiValueMap<String, String>();
        payload.add(Constants.SPOTIFY_PAYLOAD_GRANT_AUTH_KEY, Constants.SPOTIFY_PAYLOAD_GRANT_AUTH_VALUE);
        payload.add(Constants.SPOTIFY_PAYLOAD_SCOPE_AUTH_KEY, Constants.SPOTIFY_PAYLOAD_SCOPE_AUTH_VALUE);

        ResponseEntity<SpotifyOAuthTokenResource> response = authTemplate.postForEntity(uri, payload, SpotifyOAuthTokenResource.class);

        return response.getBody();
    }

从API接收信息的资源对象：实现get和set方法！

@JsonIgnoreProperties(ignoreUnknown = true)
public class SpotifyOAuthTokenResource implements Serializable {

    private static final long serialVersionUID = 1L;

    private String access_token;
    private String token_type;
    private Integer expires_in;
}

但是当我在浏览器中调用该方法时，我收到以下错误： Error Screen

任何人都可以帮助我，并找出我做错了什么吗？

非常感谢！

Spotify Web API +身份验证客户端凭据流

0 个答案: