打开Spring Cache的核心缓存拦截器CacheInterceptor,可以看到具体实现:
public class CacheInterceptor extends CacheAspectSupport implements MethodInterceptor, Serializable {
@Override
public Object invoke(final MethodInvocation invocation) throws Throwable {
Method method = invocation.getMethod();
CacheOperationInvoker aopAllianceInvoker = new CacheOperationInvoker() {
@Override
public Object invoke() {
try {
return invocation.proceed();
}
catch (Throwable ex) {
throw new ThrowableWrapper(ex);
}
}
};
try {
return execute(aopAllianceInvoker, invocation.getThis(), method, invocation.getArguments());
}
catch (CacheOperationInvoker.ThrowableWrapper th) {
throw th.getOriginal();
}
}
}
CacheInterceptor默认实现了Spring aop的MethodInterceptor接口,MethodInterceptor的功能是做方法拦截。拦截的方法都会调用invoke方法,在invoke方法里面主要缓存逻辑是在execute方法里面,该方法是继承了父类CacheAspectSupport。
protected Object execute(CacheOperationInvoker invoker, Object