java Google GCM 中的 HTTP 响应代码 401
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HTTP response code 401 in Google GCM
提问by chako
Below is the exception I am getting even though my API key for server and browser application are valid. I checked it using curl. I send GCM request in both format UTF-8 and JSON. Testing it from outside corporate network.
下面是我得到的异常，即使我的服务器和浏览器应用程序的 API 密钥有效。我使用 curl 检查了它。我以 UTF-8 和 JSON 两种格式发送 GCM 请求。从外部公司网络测试它。
java.io.IOException: Server returned HTTP response code: 401 for URL: https://android.googleapis.com/gcm/send
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27)
at java.lang.reflect.Constructor.newInstance(Constructor.java:513)
at sun.net.www.protocol.http.HttpURLConnection.run(HttpURLConnection.java:1345)
at java.security.AccessController.doPrivileged(Native Method)
at sun.net.www.protocol.http.HttpURLConnection.getChainedException(HttpURLConnection.java:1339)
at sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLConnection.java:993)
at java.net.URLConnection.getContent(URLConnection.java:688)
at sun.net.www.protocol.https.HttpsURLConnectionImpl.getContent(HttpsURLConnectionImpl.java:406)
at gcm1.MessageUtil.sendMessage(MessageUtil.java:58)
May I know the reason and solution for this ?
我可以知道原因和解决方案吗？
回答by azgolfer
Here are the possible causes for 401 error when using GCM:
以下是使用 GCM 时出现 401 错误的可能原因：
The sender account that you're trying to use to send a message couldn't be authenticated. Possible causes are:
您尝试用于发送邮件的发件人帐户无法通过身份验证。可能的原因有：
- Authorization header missing or with invalid syntax.
- Invalid project ID sent as key.
- Key valid but with GCM service disabled.
- Request originated from a server not whitelisted in the Server Key IPs.
- 授权标头丢失或语法无效。
- 作为密钥发送的项目 ID 无效。
- 密钥有效但禁用 GCM 服务。
- 请求源自未在服务器密钥 IP 中列入白名单的服务器。
Check that the token you're sending inside the Authorization header is the correct API key associated with your project.
检查您在 Authorization 标头中发送的令牌是否是与您的项目关联的正确 API 密钥。
Source: https://developers.google.com/cloud-messaging/http-server-ref#error-codes
来源：https: //developers.google.com/cloud-messaging/http-server-ref#error-codes
回答by David Vávra
In my case the problem was that I forgot to redeploy after setting correct API key in the datastore.
就我而言，问题是我在数据存储中设置了正确的 API 密钥后忘记重新部署。
回答by Nilesh Patel
Please follow as par below instruction it's may help you.
请按照以下说明进行操作，它可能对您有所帮助。
Update: It would also seem that Migrating from GCM to FCMfixes the issue for 401 Unauthorized Error.
更新：从 GCM 迁移到 FCM似乎也解决了 401 未授权错误的问题。
If you are just starting to use GCM, instead of creating a project in the Google Developers Console, do it in the Firebase Console. After creating the project, simply use the auto-generated Server Key. Here are the steps where to find the Server Key:
如果您刚开始使用 GCM，请不要在 Google Developers Console 中创建项目，而是在 Firebase Console 中创建项目。创建项目后，只需使用自动生成的服务器密钥。以下是查找服务器密钥的步骤：
- Go to your Firebase Console and click on CREATE NEW PROJECT.
- Fill in your desired Project Name and select your Country. After this, the new Project should be active.
- Then on left-side panel, click on the gear button and select Project Settings.
- Then go to the Cloud-Messaging Tab.
- 转到您的 Firebase 控制台并点击创建新项目。
- 填写您想要的项目名称并选择您的国家。在此之后，新项目应该处于活动状态。
- 然后在左侧面板上，单击齿轮按钮并选择项目设置。
- 然后转到云消息选项卡。
For old GCMprojects, you can simply Import the project to the Firebase Console:
对于旧的 GCM项目，您可以简单地将项目导入 Firebase 控制台：
- Go to your Firebase Console and click on IMPORT PROJECT.
- Select the project you want to import and your country.
- Click on ADD FIREBASE. After this, the new Project should be active.
- Then on left-side panel, click on the gear button and select Project Settings.
- Then go to the Cloud-Messaging Tab.
- 转到您的 Firebase 控制台并点击导入项目。
- 选择您要导入的项目和您所在的国家/地区。
- 单击添加 FIREBASE。在此之后，新项目应该处于活动状态。
- 然后在左侧面板上，单击齿轮按钮并选择项目设置。
- 然后转到云消息选项卡。
