栗子
public class TestPreconditions {
static class Listener {
@Subscribe
public void listen(String eventData) {
System.out.println("接收到事件数据:" + eventData);
}
@Subscribe
public void listen(Integer eventData) {
System.out.println("接收到事件int数据:" + eventData);
}
}
public static void main(String[] args) {
EventBus bus = new EventBus();
bus.register(new Listener());
bus.post("这是事件数据!");
bus.post(123456);
}
}
结果:
![](https://img.laitimes.com/img/_0nNw4CM6IyYiwiM6ICdiwiI0gTMx81dsQWZ4lmZf1GLlpXazVmcvwFciV2dsQXYtJ3bm9CX9s2RkBnVHFmb1clWvB3MaVnRtp1XlBXe0xCMy81dvRWYoNHLwEzX5xCMx8FesU2cfdGLwMzX0xiRGZkRGZ0Xy9GbvNGLpZTY1EmMZVDUSFTU4VFRR9Fd4VGdsYTMfVmepNHLrJXYtJXZ0F2dvwVZnFWbp1zczV2YvJHctM3cv1Ce-cmbw5CN1gjN2YDZ2gDNwYjZwU2YxYzX0IDO1MDMxMzLcJTMxIDMy8CXn9Gbi9CXzV2Zh1WavwVbvNmLvR3YxUjLyM3Lc9CX6MHc0RHaiojIsJye.png)
应用场景
public class TestLolBuff {
//蓝buff
static class BlueBuff {
}
//红buff
static class RedBuff {
}
//小龙buff
static class DragonetBuff {
}
//大龙buff
static class BaronBuff {
}
static class Listener {
@Subscribe
public void listen(BlueBuff eventData) {
System.out.println("我得到了蓝buff:");
}
@Subscribe
public void listen(RedBuff eventData) {
System.out.println("我得到了红buff:");
}
@Subscribe
public void listen(DragonetBuff eventData) {
System.out.println("我得到了小龙buff:");
}
@Subscribe
public void listen(BaronBuff eventData) {
System.out.println("我得到了大龙buff:");
}
}
public static void main(String[] args) {
EventBus bus = new EventBus();
bus.register(new Listener());
bus.post(new DragonetBuff());
}
}
异步
public static void main(String[] args) {
AsyncEventBus bus = new AsyncEventBus();
bus.register(new Listener());
bus.post(new DragonetBuff());
}
与Spring结合使用
@Component
public class AsyncEventBusBean {
@Bean
public AsyncEventBus asyncEventBus() {
AsyncEventBus eventBus = new AsyncEventBus(Executors.newFixedThreadPool(10));
eventBus.register(new xxx());
return eventBus;
}
}
@Autowired
private AsyncEventBus asyncEventBus;
asyncEventBus.post(xxx);