从Java或JS到GCM的POST [英] POST from Java or JS to GCM
问题描述
我知道有很多不同的情况类似于我的stackoverflow，但我无法建立连接。
I know there are many different situations that resemble mine across stackoverflow, but I just couldn't make the connection.
我要做的是向GCM发送一个简单的推送通知。我找到了两个我尝试POST的链接。请注意这些链接在我找到的PHP脚本中有效。
What I am trying to do, is to send a simple push notification to the GCM. I found two links for which I try to POST too. Note both these links work in this PHP script i found.
https://gcm-http.googleapis.com/gcm/send
https://android.googleapis.com/gcm/send
我试图发送推送从JS到GCM的通知，但很多人都说这不能因为安全问题。截至目前，当我在Angular JS中执行我的代码时，我收到来自 https：/的405错误/gcm-http.googleapis.com/gcm/send 。状态405表示不接受的方法（参考链接 http://www.w3.org /Protocols/rfc2616/rfc2616-sec10.html ）。
I tried to send push notifications from JS to the GCM, but many people have stated that this can not because of security issues. As of now, when I execute my code in Angular JS, I am getting a 405 error from https://gcm-http.googleapis.com/gcm/send. Status 405 means method not accepted (link for reference http://www.w3.org/Protocols/rfc2616/rfc2616-sec10.html).
这是JS的代码。我尝试了两种方法。
Here is the code for JS. I have two method that I tried.
方法1：
var xmlhttp = new XMLHttpRequest();
xmlhttp.onreadystatechange = function() {
if (xmlhttp.readyState == 4 && xmlhttp.status == 200) {
//ite
}
};
var jsonCall = {
registration_id: "xxxxxxxxxxxxxxxxxxxxxxxxxxxx-AEQtUUWnCVH566xcwib4HinI16W3_g"
};
xmlhttp.open("POST", "https://gcm-http.googleapis.com/gcm/send", true);
xmlhttp.setRequestHeader("Content-type", "application/json");
xmlhttp.setRequestHeader("Authorization", "xxxxxxxxxxxxxxxxxxxxxxxxxxxxx");
xmlhttp.send(jsonCall);
方法2
var jsonCall = {
registration_id: "xxxxxxxxxxxxxxxxxxxxxxxxxxxx-AEQtUUWnCVH566xcwib4HinI16W3_g"
};
$http({
method:'POST',
url: 'https://gcm-http.googleapis.com/gcm/send',
data: jsonCall,
headers: {
'Authorization': 'A1nxxxxxxxxxxxxxxxxxx',
'Content-type': 'application/json' }
})
这是我在Java中尝试过的。请注意，我的项目不是作为Android项目创建的，而是作为普通的Java项目创建的。我在这里得到411错误，所以我认为我用作JSON的字符串不正确。请注意，如果我使用GET，我会得到200.
This is what I have tried in Java. Note that my project was not created as an Android project, but just as a normal Java project. I get a 411 error here, so I think the string I use as JSON is incorrect. Note that I get a 200 if I use GET.
方法3：
HttpURLConnection connection = null;
try {
//Create connection
String json ="{\"registration_ids\":[\"xxxxxxxxxxxxxxxxxxxxxxxxxxxxx-xxxxxxxxxxxxx\"]}";
URL url = new URL("https://gcm-http.googleapis.com/gcm/send");
connection = (HttpURLConnection)url.openConnection();
connection.setDoOutput(true);
connection.setDoInput(true);
connection.setRequestMethod("POST");
connection.setRequestProperty("Content-Type", "application/json; charset=UTF-8");
connection.setRequestProperty("Content-Length", "0");
connection.setRequestProperty("Authorization", "key="+"xxxxxxxxxxxxxxxxxxxxxxxxxx");
System.out.println(connection.getResponseCode());
InputStream stream = (InputStream) connection.getInputStream();
InputStreamReader isReader = new InputStreamReader(stream);
//put output stream into a string
BufferedReader br = new BufferedReader(isReader);
String line;
while((line = br.readLine()) != null){
System.out.println(line);
}
OutputStream os = connection.getOutputStream();
os.write(json.getBytes("UTF-8"));
os.flush();
os.close();
} catch(Exception e){
System.out.println(e);
}
如果有人可以看看这个，并指引我正确的方向，我真的很感激。
If someone can take a look at this, and set me in the correct direction, I would really appreciate it.
更新：
我已经摆脱那个411错误。我认为这是因为我从来没有连接过。现在我得到正确的200代码，但推送通知不会发送。我的JSON格式是否正确？
I have gotten rid of that 411 error. I think it was because I never connected in the first place. Now I am getting the correct 200 code, but the push notification does not send. Is my JSON the correct format?
HttpURLConnection connection = null;
try {
//Create connection
String json ="{\"registration_ids\":[\"APA91bGxHWapgmxgyvPceu85ArDMLaFekbTt5RGzy3gv1xtSO09tJbvnaeVLefBqNl_iBrctoZQ2AltSMfrXykq8-AEQtUUWnCVH566xcwib4HinI16W3_g\"]}";
URL url = new URL("https://gcm-http.googleapis.com/gcm/send");
connection = (HttpURLConnection)url.openConnection();
connection.setDoOutput(true);
connection.setDoInput(true);
connection.setRequestMethod("POST");
connection.setRequestProperty("Content-Type", "application/json");
connection.setRequestProperty("Authorization", "key=xxxxxxxxxxxxxxxxxxxxxxx");
connection.connect();
OutputStream os = connection.getOutputStream();
os.write(json.getBytes("UTF-8"));
System.out.println(connection.getResponseCode());
InputStream stream = (InputStream) connection.getInputStream();
InputStreamReader isReader = new InputStreamReader(stream);
//put output stream into a string
BufferedReader br = new BufferedReader(isReader);
String line;
while((line = br.readLine()) != null){
System.out.println(line);
}
os.flush();
os.close();
} catch(Exception e){
System.out.println(e);
}
推荐答案
这已经解决了Java方法。 JS继续返回400,401,411等状态代码。事实证明，Java返回200但我的手机没有收到任何东西的原因是因为我的JSON不正确。以下是正确的JSON值：
This has been solved using the Java method. JS keeps on returning those status codes of 400, 401, 411 etc. It turns out the reason Java returned a 200 but my phone did not receive anything was because my JSON was incorrect. Here is the correct JSON value:
String postData = "{ \"registration_ids\": [ \"" + CLIENT_REG_ID + "\" ], " +
"\"delay_while_idle\": true, " +
"\"data\": {\"tickerText\":\"My Ticket\", " +
"\"contentTitle\":\"My Title\", " +
"\"message\": \"Test GCM message from GCMServer-Android\"}}";
这是从我发布的另一个问题中获得的，其中SO成员提供了此解决方案。
This was obtained from another question I posted, where a fellow SO member provided this solution.
这篇关于从Java或JS到GCM的POST的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！
