java - 如何使用 Java GCM API 在 Android 设备上获取失败推送通知的注册 ID

Question

我使用 GCM API 在 Java 中实现了以下代码，以在 Android 设备上发送通知。

    Sender sender = new Sender(GCM_API_KEY);
    Message.Builder builder = new Message.Builder();
    builder.collapseKey(collpaseKey);
    builder.timeToLive(TTL_HOURS * 3600);
    if (data != null) {
        for (PushData messageData : data) {
            builder.addData(messageData.getKey(), messageData.getValue());
        }
    }
    if (StreamType.CALL == type) {
        for (PushData pushData : message) {
            builder.addData(pushData.getKey(), pushData.getValue());
        }
    }
    Message msg = builder.build();
    try {
        System.out.println(msg.toString());
        MulticastResult result = sender.send(msg, pushId, MAX_RETRY);
        log.infof("result %s", result.toString());
        return true;
    }

这里的pushId是List类型，里面包含了所有设备的push id，在该id处，要发送的通知。

问题是，结果不包含失败推送 ID 或任何设备标识，以便我可以识别哪个设备尚未收到通知。注意:- 我不想一一发送通知

响应 - 结果

MulticastResult(multicast_id=7588781423174816193,total=5,success=1,failure=4,canonical_ids=0,results: [[ errorCode=NotRegistered ], [ messageId=0:1505731620878025%f02bfbe47eeff668 ], [ errorCode=NotRegistered ], [ errorCode=NotRegistered ], [ errorCode=NotRegistered ]]

其中不包含任何注册 ID 或其他内容，以便我可以识别数据库中的设备。

请建议，提前致谢。

Answer 1

响应间接告诉您推送 ID 失败。

在您的示例中:

[[ errorCode=NotRegistered ], 
 [ messageId=0:1505731620878025%f02bfbe47eeff668 ], 
 [ errorCode=NotRegistered ],
 [ errorCode=NotRegistered ], 
 [ errorCode=NotRegistered ]]

可以看到第1、3、4、5个推送ID失败。由于您应该知道在请求中发送推送 ID 的顺序，因此您应该知道哪些推送 ID 失败。

这是 documentation 中的相关示例:

Here are JSON results for 6 recipients (IDs 4, 8, 15, 16, 23, and 42 respectively) with 3 messages successfully processed, 1 canonical registration token returned, and 3 errors:

{ "multicast_id": 216, "success": 3, "failure": 3, "canonical_ids": 1, "results": [
{ "message_id": "1:0408" },
{ "error": "Unavailable" },
{ "error": "InvalidRegistration" },
{ "message_id": "1:1516" },
{ "message_id": "1:2342", "registration_id": "32" },
{ "error": "NotRegistered"} ] }

In this example:

• First message: success, not required.
• Second message: should be resent (to registration token 8).
• Third message: had an unrecoverable error (maybe the value got corrupted in the database).
• Fourth message: success, nothing required.
• Fifth message: success, but the registration token should be updated in the server database (from 23 to 32).
• Sixth message: registration token (42) should be removed from the server database because the application was uninstalled from the device.