### 1、自然顺序

```java
import org.noear.solon.Solon;

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

### 2、使用事件总线与生命周期事件

具体参考：[《应用生命周期》](/article/240)

```java
//应用加载完后的事件
import org.noear.solon.annotation.Component;
import org.noear.solon.core.event.AppLoadEndEvent;
import org.noear.solon.core.event.EventListener;

@Component
public class AppLoadEndEventImpl implements EventListener<AppLoadEndEvent>{
    @Override
    public void onEvent(AppLoadEndEvent event) throws Throwable {
        //执行代码
    }
}
```


### 3、使用 Bean 初始化注解（会在容器初始化完成后执行）

具体参考：[《Bean 生命周期》](/article/448)

```java
import org.noear.solon.annotation.Component;
import org.noear.solon.annotation.Init;

@Component
public class DemoCom  {
    @Init
    public void init() {
        //执行代码
    }
}
```

### 4、使用命令调度

具体参考：[《Command 调度（命令）》](/article/717)

```java
import org.noear.solon.scheduling.annotation.Command;
import org.noear.solon.scheduling.command.CommandExecutor;

//有命令 cmd:test 时可执行 //java -jar demoapp.jar cmd:test
@Command("cmd:test")
public class Cmd1 implements CommandExecutor {
    @Override
    public void execute(String command) {
        //执行代码
    }
}
```