### 1、添加依赖

新建一个空的 java maven 程序。添加依赖

```xml
<dependency>
    <groupId>org.noear</groupId>
    <artifactId>dami2</artifactId>
    <version>2.0.4</version>
</dependency>
```

或者 

```xml
<dependency>
    <groupId>org.noear</groupId>
    <artifactId>dami2-solon-plugin</artifactId> <!-- 或  springboot-solon-plugin -->
    <version>2.0.4</version>
</dependency>
```


### 2、示例代码

添加示例应用

```java
public class DemoApp {
    static String topic = "demo.hello";

    public static void main(String[] args) {
        //监听事件
        Dami.bus().listen(topic, event -> {
            System.err.println(event.getPayload()); 
        });

        //发送事件
        Dami.bus().send(topic, "{name:'noear',say:'hello'}");
    }
}
```


### 3、运行后效果

<img src="/img/664421767e7e42b4b05746462f7562ca.png" width="500" />