Question

我对XMPP和Spring Integration完全陌生，并且想向FCM用户发送消息。我为出站消息创建了XML配置，如下所示：

    <?xml version="1.0" encoding="UTF-8"?>
 <beans xmlns="http://www.springframework.org/schema/beans"
           xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
           xmlns:context="http://www.springframework.org/schema/context"
           xmlns:int="http://www.springframework.org/schema/integration"
           xmlns:int-xmpp="http://www.springframework.org/schema/integration/xmpp"
           ...>
  <context:component-scan base-package="com.avantovr.esysync_backend.webservices.restful.fcm.xmppserver" />
  <int-xmpp:outbound-channel-adapter id="xmppOutboundAdapter" channel="xmppOutboundChannel" xmpp-connection="xmppConnection"/>
  <int:service-activator ref="fcmSender" input-channel="xmppOutbound" />
  <int:logging-channel-adapter id="xmppOutboundChannel" log-full-message="true" />
    </beans>

现在，我想创建一个Java类，其中有一种用于通过XMPP将Downstrwam messagr发送到FCM的方法。请问有任何初学者通过Spring集成向FCM发送和接收xmpp消息的示例吗？

Answer 1

这可能不是最佳解决方案，但对我来说足够好。第一次处理XMPP。

除了pom.xml依赖项之外，我没有任何XML配置。

睡眠5秒钟，断开连接后重新连接。 FCM会不时断开XMPP连接以平衡负载。

发回ACK正常，未测试接收ACK和NACK。

要从Java-> fcm->手机发送消息；

@Autowired
private XmppConfig xmppConfig;

xmppConfig.getXmppConnection().sendStanza(generateStanza(messageId,json));

来自https://firebase.google.com/docs/cloud-messaging/server

的

json应该是这样的

  {
      "to":"REGISTRATION_ID",  // "to" replaces "registration_ids"
      "message_id":"m-1366082849205" // new required field
      "data":
      {
          "hello":"world",
      }
      "time_to_live":"600",
      "delivery_receipt_requested": true/false
  }

快速依赖

<dependency> <groupId>org.igniterealtime.smack</groupId> <artifactId>smack-tcp</artifactId> <version>4.3.4</version> </dependency> <dependency> <groupId>org.igniterealtime.smack</groupId> <artifactId>smack-java7</artifactId> <version>4.3.4</version> </dependency> <dependency> <groupId>org.igniterealtime.smack</groupId> <artifactId>smack-extensions</artifactId> <version>4.3.4</version> </dependency> <dependency> <groupId>org.json</groupId> <artifactId>json</artifactId> <version>20190722</version> </dependency>

application.properties

fcm.sender_id=YOUR_SENDER_ID@fcm.googleapis.com fcm.server_key=YOUR_SERVER_KEY fcm.host=fcm-xmpp.googleapis.com fcm.port=5235

XmppConfig.java

import com.alessoft.utils.Utils; import org.jivesoftware.smack.ConnectionConfiguration; import org.jivesoftware.smack.ConnectionListener; import org.jivesoftware.smack.XMPPConnection; import org.jivesoftware.smack.roster.Roster; import org.jivesoftware.smack.tcp.XMPPTCPConnection; import org.jivesoftware.smack.tcp.XMPPTCPConnectionConfiguration; import org.jxmpp.stringprep.XmppStringprepException; import org.slf4j.Logger; import org.slf4j.LoggerFactory; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.beans.factory.annotation.Value; import org.springframework.context.annotation.Configuration; import javax.annotation.PostConstruct; import javax.net.ssl.SSLSocketFactory; @Configuration class XmppConfig implements ConnectionListener { @Value("${fcm.sender_id}") private String senderId; @Value("${fcm.server_key}") private String server_key; @Value("${fcm.host}") private String host; @Value("${fcm.port}") private int port; @Autowired private XmppService xmppService; private Logger logger = LoggerFactory.getLogger(XmppConfig.class); private volatile boolean xmppConnected; private XMPPTCPConnection xmppConnection; public XMPPTCPConnection getXmppConnection() { return xmppConnection; } @PostConstruct public void postConstruct() throws Exception { new Thread(() -> prepareXmppConnection()).start(); } public XMPPConnection prepareXmppConnection() { XMPPTCPConnectionConfiguration conf = null; try { conf = XMPPTCPConnectionConfiguration.builder() .setHost(host) .setPort(port) .setSendPresence(false) .setSecurityMode(ConnectionConfiguration.SecurityMode.disabled) .setSocketFactory(SSLSocketFactory.getDefault()) .setUsernameAndPassword(senderId, server_key) .setXmppDomain("somedomain.com") .build(); } catch (XmppStringprepException e) { logger.info("prepareXmppConnection error", e); } xmppConnection = new XMPPTCPConnection(conf); xmppConnection.addAsyncStanzaListener(xmppService, xmppService); xmppConnection.addConnectionListener(this); Roster.getInstanceFor(xmppConnection).setRosterLoadedAtLogin(false); establishXmppConnection(); return xmppConnection; } private void establishXmppConnection() { try { xmppConnection.connect(); xmppConnection.login(); } catch (Exception e) { logger.info("XMPP establishXmppConnection error", e); } } @Override public void connectionClosedOnError(Exception e) { logger.info("LOST CONNECTION TO FCM XMPP ON ERROR", e); Utils.sleep(5000); establishXmppConnection(); } @Override public void connectionClosed() { logger.info("LOST CONNECTION TO FCM XMPP"); Utils.sleep(5000); establishXmppConnection(); } @Override public void connected(XMPPConnection connection) { logger.info("CONNECTED TO FCM XMPP"); } @Override public void authenticated(XMPPConnection connection, boolean resumed) { logger.info("AUTHENTICATED TO FCM XMPP"); } }

XmppService.java

import org.jivesoftware.smack.SmackException; import org.jivesoftware.smack.StanzaListener; import org.jivesoftware.smack.filter.StanzaFilter; import org.jivesoftware.smack.packet.Stanza; import org.jivesoftware.smack.util.PacketParserUtils; import org.json.JSONObject; import org.json.XML; import org.slf4j.Logger; import org.slf4j.LoggerFactory; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.stereotype.Service; @Service public class XmppService implements StanzaListener, StanzaFilter { private Logger logger = LoggerFactory.getLogger(XmppService.class); @Autowired private XmppConfig xmppConfig; @Override public void processStanza(Stanza stanzaXml) throws SmackException.NotConnectedException, InterruptedException, SmackException.NotLoggedInException { JSONObject stanza = XML.toJSONObject(stanzaXml.toXML(null).toString()); if (!stanza.has("message")) return; JSONObject message = stanza.getJSONObject("message"); if (message.has("type")) { normalMessage(message); } else { otherMessage(message); } } private void otherMessage(JSONObject message) { JSONObject gcm = message.getJSONObject("gcm"); String contentString = gcm.getString("content"); JSONObject content = new JSONObject(contentString); if (content.getString("message_type").equals("ack")) { logger.info("RECEIVED ACK"); } else if (content.getString("message_type").equals("nack")) { logger.info("RECEIVED NACK: \n" + content.toString(2)); } else { logger.info("RECEIVED UNKNOWN: \n" + content.toString()); } } private void normalMessage(JSONObject message) { JSONObject gcm = message.getJSONObject("gcm"); String contentString = gcm.getString("content"); JSONObject content = new JSONObject(contentString); String message_id = content.getString("message_id"); String from = content.getString("from"); if (content.has("message_type")) { logger.info("NOT FROM DEVICE:\n" + message.toString()); } else { processMessage(content); sendAck(message_id, from); } } private void processMessage(JSONObject content) { // your own processing } private void sendAck(String message_id, String regId) { try { JSONObject json = new JSONObject(); json.put("to", regId); json.put("message_id", message_id); json.put("message_type", "ack"); String messageString = String.format("<message><gcm xmlns=\"google:mobile:data\">%s</gcm></message>", json.toString()); Stanza stanza = PacketParserUtils.parseStanza(messageString); xmppConfig.getXmppConnection().sendStanza(stanza); } catch (Exception e) { logger.info("fcm sending ack error", e); } } private Stanza generateStanza(String messageId, JSONObject json) { String messageString = String.format("<message id=\"%s\"><gcm xmlns=\"google:mobile:data\">%s</gcm></message>", messageId, json.toString()); try { return PacketParserUtils.parseStanza(messageString); } catch (Exception e) { logger.info("generateStanza error", e); return null; } } @Override public boolean accept(Stanza stanza) { return true; } }

如何使用Spring Integration将XMPP消息发送到FCM

1 个答案: