Guava 的EventBus示例代码（简单笔记，后期补充）

1package guavademo.event.bus;
2
3import com.google.common.eventbus.EventBus;
4import com.google.common.eventbus.Subscribe;
5
6/**
7 * Created by liuguangxin on 2018/4/9.
8 */
9public class OrderEvent {
10    private String message;
11
12    public OrderEvent(String message) {
13        this.message = message;
14    }
15
16    public String getMessage() {
17        return message;
18    }
19}
20
21
22class EventListener {
23
24    public EventListener(){
25        System.out.println();
26    }
27
28    @Subscribe
29    public void listen(OrderEvent event) {
30        //TODO @Subscribe注解的处理逻辑在com.google.common.eventbus.EventBus.register()中被处理
31        System.out.println("receive msg:" + event.getMessage());
32    }
33
34    @Subscribe
35    public void listen(String event) {
36        System.out.println("receive msg:" + event);
37    }
38}
39
40
41class Main {
42    public static void main(String[] args) {
43        EventBus eventBus = new EventBus("daxin");
44
45        //register all subscriber
46        eventBus.register(new EventListener());
47
48        // 支持多个订阅者
49        // eventBus.register(new EventListener());
50
51        //publish event
52        eventBus.post(new OrderEvent("hello"));
53        eventBus.post(new OrderEvent("world"));
54        eventBus.post("String type Event");
55
56    }
57}

@Subscribe注解的处理逻辑在com.google.common.eventbus.EventBus.register()中被处理