### 1、添加依赖

只需要在原有的 web 项目基础上，添加响应式接口插件即可

```xml
<dependency>
    <groupId>org.noear</groupId>
    <artifactId>solon-web-rx</artifactId>
</dependency>
```

详见：[生态 / solon-web-rx](/article/550)

### 2、开始编码

```java
public class DemoApp {
    public static void main(String[] args){
        Solon.start(DemoApp.class, args);
    }
}

@Controller
public class DemoController {
    //经典的
    @Mapping("/hi")
    public String hi(String name) {
          return "Hello " + name;
    }

    //响应式的
    @Mapping("/hello")
    public Mono<String> hello(String name) {
          return Mono.fromSupplier(() -> {
              return "Hello " + name;
          });
    }
}
```