Android RabbitMQ之Android初探
Android studio
最新版本
RabbitMQ Java客户端的当前版本是 5.5.0。
添加库依赖
在项目中使用RabbitMQ Java客户端的推荐方法是使用依赖关系管理系统。
如果您正在使用Maven，请将此依赖项添加到项目的POM文件中：
com.rabbitmq
amqp-client
5.5.0
或者，如果使用Gradle：
dependencies {
implementation 'com.rabbitmq:amqp-client:5.5.0'
}
RabbitMQ Java客户端库允许Java代码与RabbitMQ进行交互。
该库的5.x版本系列需要JDK 8，用于编译和运行时。在Android上，这意味着仅支持Android 7.0或更高版本。4.x版本系列支持7.0之前的JDK 6和Android版本。
版本请看这里：http://repo1.maven.org/maven2/com/rabbitmq/amqp-client/
依赖请看这里：https://www.rabbitmq.com/java-client.html
代码部分
前提条件
private String userName = "dlw" ;
private String passWord = "dlw" ;
private String virtualHost = "/" ;
private String hostName = "192.168.xx.xxx" ;
private int portNum = 5672 ;
private String queueName = "que" ;
private String exchangeName = "demo" ;
private String rountingKey = "key" ;
①Rabbit配置
/**
* Rabbit配置
*/
private void setupConnectionFactory(){
factory.setUsername(userName);
factory.setPassword(passWord);
factory.setHost(hostName);
factory.setPort(portNum);
}
②发消息
①工厂创建一个新的连接 ---- factory.newConnection() ;
②用连接创建一个通道 ---- connection.createChannel() ;
③声明一个交换机 ---- channel.exchangeDeclare(String , String , Boolean) ;
④声明一个独占服务器，并得到队列名称 ---- channel.queueDeclare().getQueue() ;
⑤将交换机和队列绑定 ---- channel.queueBind(queueName , exchangeName , rountingKey) ;
⑥发布消息 ---- channel.basicPublish(exchangeName , rountingKey ,null , msg);
/**
* 发消息
*/
private void basicPublish(){
try {
//连接
Connection connection = factory.newConnection() ;
//通道
Channel channel = connection.createChannel() ;
//声明了一个交换和一个服务器命名的队列，然后将它们绑定在一起。
channel.exchangeDeclare(exchangeName , "fanout" , true) ;//声明exchange
String queueName = channel.queueDeclare().getQueue() ;//声明独占的服务器，并得到队列名
channel.queueBind(queueName , exchangeName , rountingKey) ;//将exchange和queue绑定
//消息发布
byte[] msg = "hello word!".getBytes() ;
channel.basicPublish(exchangeName , rountingKey ,null , msg);
} catch (IOException e) {
e.printStackTrace();
} catch (TimeoutException e) {
e.printStackTrace();
}
}
API
③接受消息
/**
* 收消息
*/
private void basicConsume(){
try {
//连接
Connection connection = factory.newConnection() ;
//通道
final Channel channel = connection.createChannel() ;
//实现Consumer的最简单方法是将便捷类DefaultConsumer子类化。可以在basicConsume 调用上传递此子类的对象以设置订阅：
channel.basicConsume(queueName , false , "administrator" , new DefaultConsumer(channel){
@Override
public void handleDelivery(String consumerTag, Envelope envelope, AMQP.BasicProperties properties, byte[] body) throws IOException {
super.handleDelivery(consumerTag, envelope, properties, body);
String rountingKey = envelope.getRoutingKey() ;
String contentType = properties.getContentType() ;
String msg = new String(body) ;
long deliveryTag = envelope.getDeliveryTag() ;
Log.e("TAG" , rountingKey+"：rountingKey") ;
Log.e("TAG" , contentType+"：contentType") ;
Log.e("TAG" , msg+"：msg") ;
Log.e("TAG" , deliveryTag+"：deliveryTag") ;
channel.basicAck(deliveryTag , false);
}
});
} catch (IOException e) {
e.printStackTrace();
} catch (TimeoutException e) {
e.printStackTrace();
}
}
API
测试
完整代码
public class RabbitTwo_Activity extends AppCompatActivity {
private String userName = "dlw" ;
private String passWord = "dlw" ;
private String virtualHost = "/" ;
private String hostName = "192.168.xx.xxx" ;
private int portNum = 5672 ;
private String queueName = "que" ;
private String exchangeName = "demo" ;
private String rountingKey = "key" ;
ConnectionFactory factory = new ConnectionFactory() ;
@Override
protected void onCreate(@Nullable Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_rabbittwo);
setupConnectionFactory();
new Thread(new Runnable() {
@Override
public void run() {
basicPublish();
}
}).start();
new Thread(new Runnable() {
@Override
public void run() {
basicConsume();
}
}).start();
}
/**
* Rabbit配置
*/
private void setupConnectionFactory(){
factory.setUsername(userName);
factory.setPassword(passWord);
factory.setHost(hostName);
factory.setPort(portNum);
}
/**
* 发消息
*/
private void basicPublish(){
try {
//连接
Connection connection = factory.newConnection() ;
//通道
Channel channel = connection.createChannel() ;
//声明了一个交换和一个服务器命名的队列，然后将它们绑定在一起。
channel.exchangeDeclare(exchangeName , "fanout" , true) ;
String queueName = channel.queueDeclare().getQueue() ;
channel.queueBind(queueName , exchangeName , rountingKey) ;
//消息发布
byte[] msg = "hello word!".getBytes() ;
channel.basicPublish(exchangeName , rountingKey ,null , msg);
} catch (IOException e) {
e.printStackTrace();
} catch (TimeoutException e) {
e.printStackTrace();
}
}
/**
* 收消息
*/
private void basicConsume(){
try {
//连接
Connection connection = factory.newConnection() ;
//通道
final Channel channel = connection.createChannel() ;
//实现Consumer的最简单方法是将便捷类DefaultConsumer子类化。可以在basicConsume 调用上传递此子类的对象以设置订阅：
channel.basicConsume(queueName , false , "administrator" , new DefaultConsumer(channel){
@Override
public void handleDelivery(String consumerTag, Envelope envelope, AMQP.BasicProperties properties, byte[] body) throws IOException {
super.handleDelivery(consumerTag, envelope, properties, body);
String rountingKey = envelope.getRoutingKey() ;
String contentType = properties.getContentType() ;
String msg = new String(body) ;
long deliveryTag = envelope.getDeliveryTag() ;
Log.e("TAG" , rountingKey+"：rountingKey") ;
Log.e("TAG" , contentType+"：contentType") ;
Log.e("TAG" , msg+"：msg") ;
Log.e("TAG" , deliveryTag+"：deliveryTag") ;
channel.basicAck(deliveryTag , false);
}
});
} catch (IOException e) {
e.printStackTrace();
} catch (TimeoutException e) {
e.printStackTrace();
}
}
}
鸣谢
官方指南
官方api