itez.kit.mqtt

类 MqttUtil

java.lang.Object

itez.kit.mqtt.MqttUtil

public class MqttUtil
extends Object

构造器概要

构造器

构造器和说明
MqttUtil(String host, String clientId)
MqttUtil(String host, String userName, String passWord, String clientId) 构造方法

方法概要

限定符和类型	方法和说明
void	connect(org.eclipse.paho.client.mqttv3.MqttCallback callback) 连接MQTT服务器
void	disconnect() 断开连接
org.eclipse.paho.client.mqttv3.MqttClient	getClient() 返回客户端对象
String	getClientId()
String	getHost()
int	getKeepAliveInterval()
String	getLastWillPayload()
int	getLastWillQos()
Boolean	getLastWillRetained()
String	getLastWillTopic()
org.eclipse.paho.client.mqttv3.persist.MemoryPersistence	getMemoryPersistence()
static MqttUtil	getMqtt(String clientId) 返回指定的Mqtt对象实例
int	getPublishQos()
String	getUserName()
boolean	isCleanSession()
boolean	isPublishRetained()
org.eclipse.paho.client.mqttv3.MqttMessage	publish(String topic, org.eclipse.paho.client.mqttv3.MqttMessage msg) 发布信息
org.eclipse.paho.client.mqttv3.MqttMessage	publish(String topic, String content) 发布信息
org.eclipse.paho.client.mqttv3.MqttMessage	publish(String topic, String content, int qos) 发布信息
org.eclipse.paho.client.mqttv3.MqttMessage	publish(String topic, String content, int qos, boolean retained) 发布信息
void	setCleanSession(boolean cleanSession)
void	setClientId(String clientId)
void	setHost(String host)
void	setKeepAliveInterval(int keepAliveInterval)
void	setLastWillPayload(String lastWillPayload)
void	setLastWillQos(int lastWillQos)
void	setLastWillRetained(Boolean lastWillRetained)
void	setLastWillTopic(String lastWillTopic)
static void	setMqtt(MqttUtil mqtt) 将Mqtt对象实例加入静态哈希表，实现对象重用
void	setPassWord(String passWord)
void	setPublishQos(int publishQos)
void	setPublishRetained(boolean publishRetained)
void	setUserName(String userName)
void	subscribe(String topic) 订阅主题（默认QOS：1，即至少成功接收到一次）
void	subscribe(String[] topic, int[] qos) 订阅主题
void	subscribe(String topic, int qos) 订阅主题
void	unsubscribe(String topic) 取消订阅主题
void	unsubscribe(String[] topic) 取消订阅主题

从类继承的方法 java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

构造器详细资料

MqttUtil

public MqttUtil(String host,
                String clientId)

MqttUtil

public MqttUtil(String host,
                String userName,
                String passWord,
                String clientId)

构造方法

参数:

host -

userName -

passWord -

clientId -

方法详细资料

setMqtt

public static void setMqtt(MqttUtil mqtt)

将Mqtt对象实例加入静态哈希表，实现对象重用

参数:

clientId -

getMqtt

public static MqttUtil getMqtt(String clientId)

返回指定的Mqtt对象实例

参数:

clientId -

返回:

connect

public void connect(org.eclipse.paho.client.mqttv3.MqttCallback callback)

连接MQTT服务器

参数:

callback - 继承MqttCallback的回调对象

抛出:

org.eclipse.paho.client.mqttv3.MqttException

disconnect

public void disconnect()

断开连接

subscribe

public void subscribe(String topic)

订阅主题（默认QOS：1，即至少成功接收到一次）

参数:

topic -

subscribe

public void subscribe(String topic,
                      int qos)

订阅主题

参数:

topic -

qos -

subscribe

public void subscribe(String[] topic,
                      int[] qos)

订阅主题

参数:

topic -

qos -

unsubscribe

public void unsubscribe(String topic)

取消订阅主题

参数:

topic -

unsubscribe

public void unsubscribe(String[] topic)

取消订阅主题

参数:

topic -

publish

public org.eclipse.paho.client.mqttv3.MqttMessage publish(String topic,
                                                          String content)

发布信息

参数:

topic -

content -

publish

public org.eclipse.paho.client.mqttv3.MqttMessage publish(String topic,
                                                          String content,
                                                          int qos)

发布信息

参数:

topic -

content -

publish

public org.eclipse.paho.client.mqttv3.MqttMessage publish(String topic,
                                                          String content,
                                                          int qos,
                                                          boolean retained)

发布信息

参数:

topic -

content -

qos -

publish

public org.eclipse.paho.client.mqttv3.MqttMessage publish(String topic,
                                                          org.eclipse.paho.client.mqttv3.MqttMessage msg)

发布信息

参数:

topic -

msg -

getClient

public org.eclipse.paho.client.mqttv3.MqttClient getClient()

返回客户端对象

返回:

getHost

public String getHost()

setHost

public void setHost(String host)

getUserName

public String getUserName()

setUserName

public void setUserName(String userName)

getClientId

public String getClientId()

setClientId

public void setClientId(String clientId)

getPublishQos

public int getPublishQos()

setPublishQos

public void setPublishQos(int publishQos)

isPublishRetained

public boolean isPublishRetained()

setPublishRetained

public void setPublishRetained(boolean publishRetained)

getKeepAliveInterval

public int getKeepAliveInterval()

setKeepAliveInterval

public void setKeepAliveInterval(int keepAliveInterval)

isCleanSession

public boolean isCleanSession()

setCleanSession

public void setCleanSession(boolean cleanSession)

getLastWillTopic

public String getLastWillTopic()

setLastWillTopic

public void setLastWillTopic(String lastWillTopic)

getLastWillPayload

public String getLastWillPayload()

setLastWillPayload

public void setLastWillPayload(String lastWillPayload)

getLastWillQos

public int getLastWillQos()

setLastWillQos

public void setLastWillQos(int lastWillQos)

getLastWillRetained

public Boolean getLastWillRetained()

setLastWillRetained

public void setLastWillRetained(Boolean lastWillRetained)

getMemoryPersistence

public org.eclipse.paho.client.mqttv3.persist.MemoryPersistence getMemoryPersistence()

setPassWord

public void setPassWord(String passWord)