我正在开发一个 Spring MVC + Apache Oltu + Instagram 示例。在这个例子中，我在https://www.instagram.com/developer/上创建了一个应用程序，我得到了ClientId和Client_Secrete。
使用这个clientId和Client Secret，调用Instagram 休息端点。但是当调用 REST EndPoint 时，我收到以下错误：
SEVERE: Servlet.service() for servlet [appServlet] in context with path [/apache-oltu] threw exception [Request processing failed; nested exception is OAuthProblemException{error='invalid_request', description='Missing parameters: access_token', uri='null', state='null', scope='null', redirectUri='null', responseStatus=0, parameters={}}] with root cause
OAuthProblemException{error='invalid_request', description='Missing parameters: access_token', uri='null', state='null', scope='null', redirectUri='null', responseStatus=0, parameters={}}
at org.apache.oltu.oauth2.common.exception.OAuthProblemException.error(OAuthProblemException.java:59)
at org.apache.oltu.oauth2.common.utils.OAuthUtils.handleOAuthProblemException(OAuthUtils.java:167)
at org.apache.oltu.oauth2.common.utils.OAuthUtils.handleMissingParameters(OAuthUtils.java:185)
at org.apache.oltu.oauth2.client.validator.OAuthClientValidator.validateRequiredParameters(OAuthClientValidator.java:90)
at org.apache.oltu.oauth2.client.validator.OAuthClientValidator.validateParameters(OAuthClientValidator.java:53)
at org.apache.oltu.oauth2.client.validator.OAuthClientValidator.validate(OAuthClientValidator.java:49)
at org.apache.oltu.oauth2.client.response.OAuthClientResponse.validate(OAuthClientResponse.java:127)
at org.apache.oltu.oauth2.client.response.OAuthClientResponse.init(OAuthClientResponse.java:96)
at org.apache.oltu.oauth2.client.response.OAuthAccessTokenResponse.init(OAuthAccessTokenResponse.java:65)
at org.apache.oltu.oauth2.client.response.OAuthClientResponse.init(OAuthClientResponse.java:101)
at org.apache.oltu.oauth2.client.response.OAuthAccessTokenResponse.init(OAuthAccessTokenResponse.java:60)
at org.apache.oltu.oauth2.client.response.OAuthClientResponse.init(OAuthClientResponse.java:120)
at org.apache.oltu.oauth2.client.response.OAuthClientResponseFactory.createCustomResponse(OAuthClientResponseFactory.java:82)
at org.apache.oltu.oauth2.client.URLConnectionClient.execute(URLConnectionClient.java:111)
at org.apache.oltu.oauth2.client.OAuthClient.accessToken(OAuthClient.java:65)
at org.apache.oltu.oauth2.client.OAuthClient.accessToken(OAuthClient.java:55)
at com.apache.oltu.InstagramController.getAccessToken(InstagramController.java:76)
at com.apache.oltu.InstagramController.redirect(InstagramController.java:56)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at org.springframework.web.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:205)
at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:133)
at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:97)
at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:827)
at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:738)
at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:85)
at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:967)
at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:901)
at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:970)
at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:861)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:635)
at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:846)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:742)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:231)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:198)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:96)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:478)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:140)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:80)
at org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:624)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:87)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:342)
at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:799)
at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:66)
at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:868)
at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1455)
at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49)
at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
at java.lang.Thread.run(Unknown Source)
以下是我使用的详细信息：
AUTHORIZATION_URL = "https://api.instagram.com/oauth/authorize";
ACCESS_TOKEN_URL = "https://api.instagram.com/oauth/access_token";
我使用的范围是：
public_content follower_list comments relationships likes basic
执行代码时，我成功获得了授权代码，但看起来缺少令牌。
我从 URL 调用 Rest Endpoint：https ://www.instagram.com/developer/endpoints/users/
我在下面用作参考的代码：
private String getAccessToken(String authorizationCode) throws OAuthSystemException, OAuthProblemException {
OAuthClientRequest request = OAuthClientRequest
.tokenLocation(ACCESS_TOKEN_URL)
.setGrantType(GrantType.AUTHORIZATION_CODE)
.setClientId(CLIENT_ID)
.setClientSecret(CLIENT_SECRET)
.setRedirectURI(REDIRECT_URL)
.setCode(authorizationCode)
.buildQueryMessage();
OAuthClient oAuthClient = new OAuthClient(new URLConnectionClient());
GitHubTokenResponse oAuthResponse = oAuthClient.accessToken(request, GitHubTokenResponse.class);
request= new OAuthBearerClientRequest("https://api.instagram.com/v1/users/self/").
setAccessToken(oAuthResponse.getAccessToken()).
buildQueryMessage();
System.out.println("REQUEST_BODY : "+request.getBody());
OAuthClient client = new OAuthClient(new URLConnectionClient());
OAuthResourceResponse resourceResponse= client.resource(request, "GET", OAuthResourceResponse.class);
if (resourceResponse.getResponseCode()==200){
logger.debug("HTTP OK");
System.out.println(resourceResponse.getBody());
return resourceResponse.getBody();
}
else{
System.out.println("Could not access resource: " + resourceResponse.getResponseCode()
+ " " + resourceResponse.getBody());
return null;
}
}
}
以下是正在执行的 URL::
https://api.instagram.com/oauth/authorize？范围=public_content+follower_list+comments+relationships+likes+basic& response_type=code&redirect_uri=http%3A%2F%2Flocalhost%3A8080%2Fapache-oltu%2Finstagram%2Fredirect&client_id=40eb3e6047a249ddb7d9194765be9901
如果我使用 ResponseType="token" 那么我得到
{"error_type": "OAuthForbiddenException", "code": 403, "error_message": "Implicit authentication is disabled"}