避免重写Java接口默认方法

Question

我有下面的界面

public interface MyInterface<T, H extends Serializable, R extends Serializable> extends Repository<T, ID> {
  default List<T> findAll(H key) {
    return Collections.EMPTY_LIST;
  }
}

实现如下，

public class RepositoryImpl<T, H extends Serializable, R extends Serializable>
    extends ACConcreateClassWhichImplementRepository<T, H> implements MyInterface<T, H, R> {
  @Override
  public List<T> findAll(H key) {
    return findSome(hashKey); //some method
  }
}

通过控制器调用它时，调用击中MyInterface中定义的默认方法，而不是击中RepositoryImpl中的实现。

java.lang.Thread.State: RUNNABLE
      at com.MyInterface.findAll(MyInterface.java:12)
      at java.lang.invoke.LambdaForm$DMH.1294483354.invokeSpecialIFC(LambdaForm$DMH:-1)
      at java.lang.invoke.LambdaForm$MH.995808242.invoke(LambdaForm$MH:-1)
      at java.lang.invoke.LambdaForm$MH.1531802663.invoke(LambdaForm$MH:-1)
      at java.lang.invoke.Invokers$Holder.invokeExact_MT(Invokers$Holder:-1)
      at java.lang.invoke.MethodHandle.invokeWithArguments(MethodHandle.java:710)
      at org.springframework.data.projection.DefaultMethodInvokingMethodInterceptor.invoke(DefaultMethodInvokingMethodInterceptor.java:86)
      
      at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186)
      at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:97)
      at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186)
      at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:215)
      at com.sun.proxy.$Proxy167.findAll(Unknown Source:-1)

而不是默认方法如果我在接口中定义了一个抽象方法，那么它就会击中实现。

at com.RepositoryImpl.findAll(RepositoryImpl.java:16)
      at jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(NativeMethodAccessorImpl.java:-1)
      at jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
      at jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
      at java.lang.reflect.Method.invoke(Method.java:566)
      at org.springframework.data.repository.core.support.RepositoryMethodInvoker$RepositoryFragmentMethodInvoker.lambda$new$0(RepositoryMethodInvoker.java:289)
      at org.springframework.data.repository.core.support.RepositoryMethodInvoker$RepositoryFragmentMethodInvoker$$Lambda$1357.2068454901.invoke(Unknown Source:-1)
      at org.springframework.data.repository.core.support.RepositoryMethodInvoker.doInvoke(RepositoryMethodInvoker.java:137)
      at org.springframework.data.repository.core.support.RepositoryMethodInvoker.invoke(RepositoryMethodInvoker.java:121)
      at org.springframework.data.repository.core.support.RepositoryComposition$RepositoryFragments.invoke(RepositoryComposition.java:529)
      at org.springframework.data.repository.core.support.RepositoryComposition.invoke(RepositoryComposition.java:285)
      at org.springframework.data.repository.core.support.RepositoryFactorySupport$ImplementationMethodExecutionInterceptor.invoke(RepositoryFactorySupport.java:639)
      at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186)
      at org.springframework.data.repository.core.support.QueryExecutorMethodInterceptor.doInvoke(QueryExecutorMethodInterceptor.java:163)
      at org.springframework.data.repository.core.support.QueryExecutorMethodInterceptor.invoke(QueryExecutorMethodInterceptor.java:138)
      
      at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186)
      at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:97)
      at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186)
      at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:215)
      at com.sun.proxy.$Proxy167.findAll(Unknown Source:-1)

我使用，Spring版本5.3.21spring boot version 2.7.0

Answer 1

因此你是通过接口自动连接的，你需要在@Autowire注释的顶部添加@Qulifire注释，或者你需要通过实际实现的类自动连接。请参考此使用@Qualifire注释

https://www.baeldung.com/spring-qualifier-annotation