本文整理汇总了Java中org.eclipse.paho.client.mqttv3.MqttClient.publish方法的典型用法代码示例。如果您正苦于以下问题:Java MqttClient.publish方法的具体用法?Java MqttClient.publish怎么用?Java MqttClient.publish使用的例子?那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类org.eclipse.paho.client.mqttv3.MqttClient
的用法示例。
在下文中一共展示了MqttClient.publish方法的15个代码示例,这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞,您的评价将有助于系统推荐出更棒的Java代码示例。
示例1: testMQtt
import org.eclipse.paho.client.mqttv3.MqttClient; //导入方法依赖的package包/类
@Test
public void testMQtt() throws Exception {
CountDownLatch latch = new CountDownLatch(1);
MqttClient client = new MqttClient("tcp://localhost:" + MQTT_PORT, MqttClient.generateClientId(), new MemoryPersistence());
client.connect();
MqttComponent mqtt = new MqttComponent();
mqtt.client = client;
Publisher<byte[]> fromTopic = mqtt.from("input", byte[].class);
Subscriber<byte[]> toTopic = mqtt.to("output", byte[].class);
Flux.from(fromTopic)
.log()
.subscribe(toTopic);
client.subscribe("output", (topic, message) -> {
result = new Integer(new String(message.getPayload()));
latch.countDown();
});
client.publish("input", new MqttMessage(new Integer(2).toString().getBytes()));
client.publish("input", new MqttMessage(new Integer(2).toString().getBytes()));
latch.await(100, TimeUnit.SECONDS);
Assert.assertEquals(2, result, 0.1);
client.disconnect();
client.close();
}
示例2: connectPublish
import org.eclipse.paho.client.mqttv3.MqttClient; //导入方法依赖的package包/类
public synchronized void connectPublish(final String userKeyString, final String deviceKeyString, final String status) {
try {
final MqttClient client = connect();
if (client == null || !client.isConnected()) {
return;
}
MqttMessage message = new MqttMessage();
message.setRetained(false);
message.setPayload((userKeyString + "," + deviceKeyString + "," + status).getBytes());
Utils.printLog(context,TAG, "UserKeyString,DeviceKeyString,status:" + userKeyString + "," + deviceKeyString + "," + status);
message.setQos(0);
client.publish(STATUS, message);
} catch (Exception e) {
e.printStackTrace();
}
}
示例3: publishTopic
import org.eclipse.paho.client.mqttv3.MqttClient; //导入方法依赖的package包/类
public synchronized void publishTopic(final String applicationId, final String status, final String loggedInUserId, final String userId) {
try {
final MqttClient client = connect();
if (client == null || !client.isConnected()) {
return;
}
MqttMessage message = new MqttMessage();
message.setRetained(false);
message.setPayload((applicationId + "," + loggedInUserId + "," + status).getBytes());
message.setQos(0);
client.publish("typing" + "-" + applicationId + "-" + userId, message);
Utils.printLog(context,TAG, "Published " + new String(message.getPayload()) + " to topic: " + "typing" + "-" + applicationId + "-" + userId);
} catch (Exception e) {
e.printStackTrace();
}
}
示例4: connectPublish
import org.eclipse.paho.client.mqttv3.MqttClient; //导入方法依赖的package包/类
public synchronized void connectPublish(final String userKeyString, final String deviceKeyString, final String status) {
try {
final MqttClient client = connect();
if (client == null || !client.isConnected()) {
return;
}
MqttMessage message = new MqttMessage();
message.setRetained(false);
message.setPayload((userKeyString + "," + deviceKeyString + "," + status).getBytes());
Utils.printLog(context, TAG, "UserKeyString,DeviceKeyString,status:" + userKeyString + "," + deviceKeyString + "," + status);
message.setQos(0);
client.publish(STATUS, message);
} catch (Exception e) {
e.printStackTrace();
}
}
示例5: publishTopic
import org.eclipse.paho.client.mqttv3.MqttClient; //导入方法依赖的package包/类
public synchronized void publishTopic(final String applicationId, final String status, final String loggedInUserId, final String userId) {
try {
final MqttClient client = connect();
if (client == null || !client.isConnected()) {
return;
}
MqttMessage message = new MqttMessage();
message.setRetained(false);
message.setPayload((applicationId + "," + loggedInUserId + "," + status).getBytes());
message.setQos(0);
client.publish("typing" + "-" + applicationId + "-" + userId, message);
Utils.printLog(context, TAG, "Published " + new String(message.getPayload()) + " to topic: " + "typing" + "-" + applicationId + "-" + userId);
} catch (Exception e) {
e.printStackTrace();
}
}
示例6: main
import org.eclipse.paho.client.mqttv3.MqttClient; //导入方法依赖的package包/类
public static void main(String args[]) {
String topic = "iot/iot";
String content = "Hello ith";
int qos = 2;
String broker = "tcp://127.0.0.1:1883";
String clientId = "sample";
MemoryPersistence persistence = new MemoryPersistence();
try {
MqttClient sampleClient = new MqttClient(broker, clientId, persistence);
MqttConnectOptions connOpts = new MqttConnectOptions();
connOpts.setCleanSession(true);
System.out.println("Connecting to broker");
sampleClient.connect(connOpts);
System.out.println("connected");
System.out.println("Publishing meessage: " + content);
MqttMessage message = new MqttMessage(content.getBytes());
message.setQos(qos);
sampleClient.publish(topic, message);
System.out.println("Message published");
sampleClient.disconnect();
System.out.println("Disconnected");
System.exit(0);
} catch (MqttException e){
System.out.println("reason " + e.getReasonCode());
System.out.println("msg " + e.getMessage());
System.out.println("loc " + e.getLocalizedMessage());
System.out.println("cause " + e.getCause());
System.out.println("exxcep " + e);
}
}
示例7: publish
import org.eclipse.paho.client.mqttv3.MqttClient; //导入方法依赖的package包/类
/**
* Publishes a single topic on the MQTT broker
*
* @param mqttClient the broker connection
* @param topic the topic to publish (relative to configured topic root)
* @param data the data to publish
* @param retained if the data should be retained
* @throws MqttPersistenceException
* @throws MqttException
*/
private void publish (MqttClient mqttClient, String topic, String data, boolean retained) throws MqttPersistenceException, MqttException
{
if ( LOG.isDebugEnabled() ) {
LOG.debug(String.format("Publishing '%s' to topic '%s' (retained = %s)", data, topic, retained));
}
MqttMessage msg = new MqttMessage(data.getBytes());
msg.setQos(configuration.getMqttQos());
msg.setRetained(retained);
mqttClient.publish(configuration.getMqttTopicRoot() + topic, msg);
}
示例8: main
import org.eclipse.paho.client.mqttv3.MqttClient; //导入方法依赖的package包/类
public static void main(String[] args) {
String topic = "MQTT Examples";
String content = "Message from MqttPublishSample";
int qos = 0;
String broker = "tcp://localhost:8080";
String clientId = "JavaSample";
MemoryPersistence persistence = new MemoryPersistence();
try {
MqttClient sampleClient = new MqttClient(broker, clientId, persistence);
MqttConnectOptions connOpts = new MqttConnectOptions();
connOpts.setCleanSession(true);
System.out.println("Connecting to broker: " + broker);
sampleClient.connect(connOpts);
System.out.println("Connected");
System.out.println("Publishing message: " + content);
MqttMessage message = new MqttMessage(content.getBytes());
message.setQos(qos);
sampleClient.publish(topic, message);
System.out.println("Message published");
sampleClient.disconnect();
System.out.println("Disconnected");
System.exit(0);
} catch (MqttException me) {
System.out.println("reason " + me.getReasonCode());
System.out.println("msg " + me.getMessage());
System.out.println("loc " + me.getLocalizedMessage());
System.out.println("cause " + me.getCause());
System.out.println("excep " + me);
me.printStackTrace();
}
}
示例9: main
import org.eclipse.paho.client.mqttv3.MqttClient; //导入方法依赖的package包/类
public static void main(String[] args) {
String topic = "java";
String content = "Message from MqttPublishSample";
int qos = 2;
String broker = "tcp://127.0.0.1:1883";
String clientId = "JavaSample";
MemoryPersistence persistence = new MemoryPersistence();
try {
MqttClient sampleClient = new MqttClient(broker, clientId, persistence);
MqttConnectOptions connOpts = new MqttConnectOptions();
connOpts.setCleanSession(true);
System.out.println("Connecting to broker: " + broker);
sampleClient.connect(connOpts);
System.out.println("Connected");
System.out.println("Publishing message: " + content);
MqttMessage message = new MqttMessage(content.getBytes());
message.setQos(qos);
sampleClient.publish(topic, message);
System.out.println("Message published");
sampleClient.disconnect();
System.out.println("Disconnected");
System.exit(0);
} catch (MqttException me) {
System.out.println("reason " + me.getReasonCode());
System.out.println("msg " + me.getMessage());
System.out.println("loc " + me.getLocalizedMessage());
System.out.println("cause " + me.getCause());
System.out.println("excep " + me);
me.printStackTrace();
}
}
示例10: publish
import org.eclipse.paho.client.mqttv3.MqttClient; //导入方法依赖的package包/类
/**
* mqtt command publish handle
*
* @param command
*/
private void publish(MqttCommandEntity command) {
try {
MqttClient client = MqttClientFactory.getMqttClient(
command.getUrl(), command.getClientID(), redisTemplate);
for (String topic : command.getTopic()) {
client.publish(topic, command.getContent().getBytes(),
command.getQos(), command.isRetained());
}
} catch (MqttException e) {
e.printStackTrace();
}
}
示例11: process
import org.eclipse.paho.client.mqttv3.MqttClient; //导入方法依赖的package包/类
@Override
public void process(Exchange exchange) throws Exception {
MqttClient client = getEndpoint().getClient();
String topic = getEndpoint().getTopic();
int qos = exchange.getIn().getHeader(PahoConstants.CAMEL_PAHO_MSG_QOS, getEndpoint().getQos(), Integer.class);
boolean retained = exchange.getIn().getHeader(PahoConstants.CAMEL_PAHO_MSG_RETAINED, getEndpoint().isRetained(), Boolean.class);
byte[] payload = exchange.getIn().getBody(byte[].class);
MqttMessage message = new MqttMessage(payload);
message.setQos(qos);
message.setRetained(retained);
client.publish(topic, message);
}
示例12: main
import org.eclipse.paho.client.mqttv3.MqttClient; //导入方法依赖的package包/类
public static void main(String[] args) throws Exception {
Properties properties = new Properties();
properties.load(new FileInputStream("src/main/resources/device.properties"));
// d:<orgid>:<device-type>:<device-id>
String clientId = String.format("d:%s:%s:%s",
properties.getProperty("Org_ID"),
properties.getProperty("Device_Type"),
properties.getProperty("Device_ID"));
// tcp://<Org_ID>.messaging.internetofthings.ibmcloud.com:1883
String serverUrl = String.format("tcp://%s.messaging.internetofthings.ibmcloud.com:1883", properties.getProperty("Org_ID"));
// iot-2/evt/<event-id>/fmt/json
String topic = String.format("iot-2/evt/%s/fmt/json", properties.getProperty("EVENT_ID"));
String password = properties.getProperty("Authentication_Token");
MqttConnectOptions connectOptions = new MqttConnectOptions();
connectOptions.setUserName(USERNAME);
connectOptions.setPassword(password.toCharArray());
MqttClient client = new MqttClient(serverUrl, clientId);
client.connect(connectOptions);
// Generate random temperature values between 40 - 60
Random rand = new Random();
while (true) {
int temprature = rand.nextInt((60 - 40) + 1) + 40;
JsonObject event = new JsonObject();
event.addProperty("temperature", temprature);
event.addProperty("timestamp", Instant.now().toEpochMilli());
System.out.println("Published Message: " + event.toString());
client.publish(topic, new MqttMessage(event.toString().getBytes(StandardCharsets.UTF_8)));
try {
Thread.sleep(500);
} catch (Exception ex) {
}
}
}
示例13: publishBigMessage
import org.eclipse.paho.client.mqttv3.MqttClient; //导入方法依赖的package包/类
@Test
public void publishBigMessage(TestContext context) {
this.async = context.async();
try {
MemoryPersistence persistence = new MemoryPersistence();
MqttClient client = new MqttClient(String.format("tcp://%s:%d", MQTT_SERVER_HOST, MQTT_SERVER_PORT), "12345", persistence);
client.connect();
byte[] message = new byte[MQTT_BIG_MESSAGE_SIZE];
client.publish(MQTT_TOPIC, message, 0, false);
context.assertTrue(true);
} catch (MqttException e) {
context.assertTrue(false);
e.printStackTrace();
}
}
示例14: publish
import org.eclipse.paho.client.mqttv3.MqttClient; //导入方法依赖的package包/类
private void publish(TestContext context, String topic, String message, int qos) {
this.async = context.async();
try {
MemoryPersistence persistence = new MemoryPersistence();
MqttClient client = new MqttClient(String.format("tcp://%s:%d", MQTT_SERVER_HOST, MQTT_SERVER_PORT), "12345", persistence);
client.connect();
client.publish(topic, message.getBytes(), qos, false);
this.async.await();
context.assertTrue(true);
} catch (MqttException e) {
context.assertTrue(false);
e.printStackTrace();
}
}
示例15: run
import org.eclipse.paho.client.mqttv3.MqttClient; //导入方法依赖的package包/类
public void run(String... args) {
System.out.println("QoS1Producer initializing...");
String host = args[0];
String username = args[1];
String password = args[2];
if (!host.startsWith("tcp://")) {
host = "tcp://" + host;
}
try {
// Create an Mqtt client
MqttClient mqttClient = new MqttClient(host, "HelloWorldQoS1Producer");
MqttConnectOptions connOpts = new MqttConnectOptions();
connOpts.setCleanSession(true);
connOpts.setUserName(username);
connOpts.setPassword(password.toCharArray());
// Connect the client
System.out.println("Connecting to Solace messaging at " + host);
mqttClient.connect(connOpts);
System.out.println("Connected");
// Create a Mqtt message
String content = "Hello world from MQTT!";
MqttMessage message = new MqttMessage(content.getBytes());
// Set the QoS on the Messages -
// Here we are using QoS of 1 (equivalent to Persistent Messages in Solace)
message.setQos(1);
System.out.println("Publishing message: " + content);
// Publish the message
mqttClient.publish("Q/tutorial", message);
// Disconnect the client
mqttClient.disconnect();
System.out.println("Message published. Exiting");
System.exit(0);
} catch (MqttException me) {
System.out.println("reason " + me.getReasonCode());
System.out.println("msg " + me.getMessage());
System.out.println("loc " + me.getLocalizedMessage());
System.out.println("cause " + me.getCause());
System.out.println("excep " + me);
me.printStackTrace();
}
}