Android 如何导入发件人类-Java应用程序引擎

我正在尝试在我的web应用程序中实现Google云消息传递。 但当我写这篇文章时：

Sender sender = new Sender("My API Key");

然后按ctrl+shift+o时eclipse不会导入任何内容

如何使用这个类

---

您应该将

gcmserver.jar

（位于

\extras\google\gcm\gcmserver\dist\gcmserver.jar

）添加到eclipse项目中

---

您可以通过右键单击项目并选择

Properties->Java Build Path->Libraries->Add External JARs…

使用Maven进行我的Java项目（由于我无法从前面的响应中找到引用），下面是我必须做的事情（如中所述）

将此存储库添加到maven pom.xml：

<repositories>
    . . .
    <repository>
        <id>gcm-server-repository</id>
        <url>https://raw.githubusercontent.com/slorber/gcm-server-repository/master/releases/</url>
    </repository>
</repositories>

要使用它，android GCM服务器实现文档中有一个小示例

---

更新

由于示例链接已断开，我在此留下一个简短的示例，在此示例中，我使用2个业务类别和2个（或更多）模型来管理响应和消息：

Sender.java

GCMREsponseValidator.java

---

我在我的android sdk文件夹中找不到gcm-server.jar。@omerjerk您必须安装android库的Google Cloud Messaging（转到android sdk管理器-您会在Extras下方找到它）。不推荐的写在那里。。这就是我没有安装它的原因。@omerjerk客户端库已被弃用（尽管它仍然有效），但服务器库却没有。Extras下没有Google云消息。我已经下载了adt-bundle-windows-x86_64-20131030

<dependencies>
    . . .
    <dependency>
        <groupId>com.google.android.gcm</groupId>
        <artifactId>gcm-server</artifactId>
        <version>1.0.2</version>
    </dependency>
</dependencies>

import com.google.android.gcm.server.*;

public MulticastResult SendMessage(YourMessageObject yourMsg) throws IOException {
    Sender sender = new Sender(gcmApiKey); // A string
    String msg = yourMsg.getMessage();
    String msgTxt = (msg.isEmpty()) ? "This is a test" : msg ;

    Message message = new Message.Builder()
            .addData("title", "My title")
            .addData("message", msgTxt)
            .addData("msgCount", "3")
            .addData("jsonEvent", yourMsg.getEventJson())
            .build();

    if(devices.isEmpty()){
        return null;
    }
    return sender.send(message, devices, 5);
}

public GCMResponseResume validateResponse(MulticastResult multicastResult, List<GCMClient> devices){
    String response;
    response = "multicast: " + multicastResult.toString();

    if(multicastResult.getMulticastId() != 0){
        responseResume = new GCMResponseResume(multicastResult);
        // We check the results
        int index = 0;
        List<Result> results = multicastResult.getResults();
        for(final Result result : results){
            // Si responde exitosamente
            if(result.getMessageId() != null){
                // If there is a canonical Id we replace the Id
                String canonicalRegId = result.getCanonicalRegistrationId();
                if (canonicalRegId != null) {
                    response = response.concat("\nCanonical found: " + canonicalRegId);
                    response = response.concat("\n... updating: " + devices.get(index));
                    Optional<GCMClient> currentDevice = Optional.of(devices.get(index));
                    String updated = clientsDAO.updateRegId(currentDevice, canonicalRegId);
                    response = response.concat("\n... updated: " + updated);
                        responseResume.addUpdatedIdsTotal(Integer.parseInt(updated));
                }
            }
            // If not a successful result
            else {
                String error = result.getErrorCodeName();
                // Y tiene error de no registrado, borramos el id correspondiente
                if (error.equals(Constants.ERROR_NOT_REGISTERED)) {
                    String notRegisteredId = devices.get(index).getRegisterId();
                    response = response.concat("\nNot Registered found: " + notRegisteredId);
                    response = response.concat("\n... deleting: " + notRegisteredId);
                    int removed = clientsDAO.removeByRegId(notRegisteredId);
                    response = response.concat("\n... deleted:" + Integer.toString(removed));
                    responseResume.addDeletedIdsTotal(removed);
                }
            }
            index++;
        }

        response = response.concat("\nResults: " + results.toString());
    }

    return responseResume;
}

public class GCMResponseResume {
    private MulticastResult multicastResult;
    private int updatedCanonicalIdsTotal;
    private int deletedIdsTotal;
}