自定义限流处理逻辑实现不生效

public final class ExceptionUtil {

public static void handleException(BlockException ex) {
    System.out.println("Oops: " + ex.getClass().getCanonicalName());
}

} public class TestService {

// blockHandler 是位于 ExceptionUtil 类下的 handleException 静态方法，需符合对应的类型限制. @SentinelResource(value = "test", blockHandler = "handleException", blockHandlerClass = {ExceptionUtil.class}) public void test() { System.out.println("Test"); }

// blockHandler 是位于当前类下的 exceptionHandler 方法，需符合对应的类型限制.
@SentinelResource(value = "hello", blockHandler = "exceptionHandler")
public String hello(long s) {
    return String.format("Hello at %d", s);
}

public String exceptionHandler(long s, BlockException ex) {
    // Do some log here.
    ex.printStackTrace();
    return "Oops, error occurred at " + s;
}

}

示例项目中也并不生效，只是提示：

Servlet.service() for servlet [dispatcherServlet] in context with path [] threw exception [Request processing failed; nested exception is java.lang.reflect.UndeclaredThrowableException] with root cause

com.alibaba.csp.sentinel.slots.block.flow.FlowException: null

原提问者GitHub用户wzlee