什么是 kotlin 替代品
@Autowired(required=false)
private DependencyC dependencyC;
和
private Optional<HelloService> optionalHelloService;
public HelloController(Optional<HelloService> helloService) {
this.optionalHelloService = helloService;
}
最佳答案
然后您应该使该属性可为空:
class HelloController(
@Autowired(required = false) val helloService: HelloService?
)
关于spring - Kotlin : Optional Dependency Injection Using Spring，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/56338508/