可以这样

```java
interface HumanExtend extends IHuman {

@Override
<K extends String, V extends String> V execute(K request) throws Exception;
}

class HumanImpl implements HumanExtend{
@Override
public <K extends String, V extends String> V execute(K request) throws Exception {
return null;
}
}
class HumanImplTwo implements HumanExtend{

@Override
public String execute(String request) throws Exception {
return null;
}
}

```