我试图运行一个我从Google上取得的样本,看看我是否可以从App Engine访问Google+。我将以下文件添加到我的项目中并设置了servlet映射,以便它们在预期的路径上可用。我将它部署到app引擎并尝试访问应用程序。转到https://mydomain.appspot.com/会给我错误:NOT_FOUND。访问servlet的URL给了我下面提到的例外。样本取自https://github.com/google/google-api-java-client-samples/tree/master/plus-appengine-sample
这些示例可能不是最新的,但它们是我可以从Google找到的最新版本。任何有关我应该做些什么的线索都会有所帮助。
我的课程如下:
BasicServlet:
public class PlusBasicServlet extends HttpServlet {
/**
* Enter your API key here from https://code.google.com/apis/console/?api=plus under "API Access".
*/
private static final String API_KEY = "AIzaSyB9NEc2yQRisoj-rIqgg35yeZXReASMRCI";
private static final long serialVersionUID = 1;
@Override
public void doGet(HttpServletRequest req, HttpServletResponse resp) throws IOException {
HttpTransport httpTransport = new UrlFetchTransport();
JsonFactory jsonFactory = new JacksonFactory();
Plus plus = new Plus.Builder(httpTransport, jsonFactory, null).setApplicationName("")
.setGoogleClientRequestInitializer(new PlusRequestInitializer(API_KEY)).build();
ActivityFeed myActivityFeed = plus.activities().search("Google").execute();
List<Activity> myActivities = myActivityFeed.getItems();
resp.setContentType("text/html");
resp.setStatus(200);
Writer writer = resp.getWriter();
writer.write("<ul>");
for (Activity a : myActivities) {
writer.write("<li>" + a.getTitle() + "</li>");
}
writer.write("</ul>");
}
}
的Util:
class Utils {
/**
* Global instance of the {@link DataStoreFactory}. The best practice is to make it a single
* globally shared instance across your application.
*/
private static final AppEngineDataStoreFactory DATA_STORE_FACTORY =
AppEngineDataStoreFactory.getDefaultInstance();
private static GoogleClientSecrets clientSecrets = null;
private static final Set<String> SCOPES = Collections.singleton(PlusScopes.PLUS_ME);
static final String MAIN_SERVLET_PATH = "/plussampleservlet";
static final String AUTH_CALLBACK_SERVLET_PATH = "/oauth2callback";
static final UrlFetchTransport HTTP_TRANSPORT = new UrlFetchTransport();
static final JacksonFactory JSON_FACTORY = JacksonFactory.getDefaultInstance();
private static GoogleClientSecrets getClientSecrets() throws IOException {
if (clientSecrets == null) {
clientSecrets = GoogleClientSecrets.load(JSON_FACTORY,
new InputStreamReader(Utils.class.getResourceAsStream("/plus_secret.json")));
Preconditions.checkArgument(!clientSecrets.getDetails().getClientId().startsWith("Enter ")
&& !clientSecrets.getDetails().getClientSecret().startsWith("Enter "),
"Download client_secrets.json file from https://code.google.com/apis/console/?api=plus "
+ "into plus-appengine-sample/src/main/resources/client_secrets.json");
}
return clientSecrets;
}
static GoogleAuthorizationCodeFlow initializeFlow() throws IOException {
return new GoogleAuthorizationCodeFlow.Builder(
HTTP_TRANSPORT, JSON_FACTORY, getClientSecrets(), SCOPES).setDataStoreFactory(
DATA_STORE_FACTORY).setAccessType("offline").build();
}
static String getRedirectUri(HttpServletRequest req) {
GenericUrl requestUrl = new GenericUrl(req.getRequestURL().toString());
requestUrl.setRawPath(AUTH_CALLBACK_SERVLET_PATH);
return requestUrl.build();
}
}
访问基本servlet时出现异常:
Uncaught exception from servlet
com.google.api.client.googleapis.json.GoogleJsonResponseException: 403
{
"code" : 403,
"errors" : [ {
"domain" : "usageLimits",
"message" : "The request did not specify any referer. Please ensure that the client is sending referer or use the API Console to remove the referer restrictions.",
"reason" : "ipRefererBlocked",
"extendedHelp" : "https://console.developers.google.com/apis/credentials?project=602263912930"
} ],
"message" : "The request did not specify any referer. Please ensure that the client is sending referer or use the API Console to remove the referer restrictions."
}
at com.google.api.client.googleapis.json.GoogleJsonResponseException.from(GoogleJsonResponseException.java:146)
at com.google.api.client.googleapis.services.json.AbstractGoogleJsonClientRequest.newExceptionOnError(AbstractGoogleJsonClientRequest.java:113)
at com.google.api.client.googleapis.services.json.AbstractGoogleJsonClientRequest.newExceptionOnError(AbstractGoogleJsonClientRequest.java:40)
at com.google.api.client.googleapis.services.AbstractGoogleClientRequest$1.interceptResponse(AbstractGoogleClientRequest.java:321)
答案 0 :(得分:1)
{
"code" : 403,
"errors" : [ {
"domain" : "usageLimits",
"message" : "The request did not specify any referer. Please ensure that the client is sending referer or use the API Console to remove the referer restrictions.",
"reason" : "ipRefererBlocked",
"extendedHelp" : "https://console.developers.google.com/apis/credentials?project=602263912930"
} ],
"message" : "The request did not specify any referer. Please ensure that the client is sending referer or use the API Console to remove the referer restrictions."
}
在Google Developer Console上创建api密钥后,您添加了IP限制或域限制。您的请求来自某个地方,而不是您提供的限制。删除限制或添加正确的i形成。
请注意,实际文档页面的代码应该是合理的最新版本。 Activites.search向下滚动到示例。