fix feign

spring-cloud-starter-tencent-polaris-circuitbreaker/src/main/java/com/tencent/cloud/polaris/circuitbreaker/feign/PolarisCircuitBreakerNameResolver.java

@@ -36,6 +36,7 @@ public class PolarisCircuitBreakerNameResolver implements CircuitBreakerNameReso
 
 	@Override
 	public String resolveCircuitBreakerName(String feignClientName, Target<?> target, Method method) {
+		String serviceName = target.name();
 		RequestMapping requestMapping = findMergedAnnotation(method, RequestMapping.class);
 		String path = "";
 		if (requestMapping != null) {
@@ -44,8 +45,8 @@ public class PolarisCircuitBreakerNameResolver implements CircuitBreakerNameReso
 					requestMapping.path()[0];
 		}
 		return "".equals(path) ?
-				MetadataContext.LOCAL_NAMESPACE + "#" + feignClientName :
+				MetadataContext.LOCAL_NAMESPACE + "#" + serviceName :
-				MetadataContext.LOCAL_NAMESPACE + "#" + feignClientName + "#" + path;
+				MetadataContext.LOCAL_NAMESPACE + "#" + serviceName + "#" + path;
 	}
 
 }

spring-cloud-starter-tencent-polaris-circuitbreaker/src/main/java/com/tencent/cloud/polaris/circuitbreaker/feign/PolarisFeignCircuitBreakerInvocationHandler.java

@@ -96,7 +96,7 @@ public class PolarisFeignCircuitBreakerInvocationHandler implements InvocationHa
 			return toString();
 		}
 
-		String circuitName = circuitBreakerNameResolver.resolveCircuitBreakerName(target.name(), target, method);
+		String circuitName = circuitBreakerNameResolver.resolveCircuitBreakerName(feignClientName, target, method);
 		CircuitBreaker circuitBreaker = factory.create(circuitName);
 		Supplier<Object> supplier = asSupplier(method, args);
 		Function<Throwable, Object> fallbackFunction;

spring-cloud-starter-tencent-polaris-circuitbreaker/src/main/java/com/tencent/cloud/polaris/circuitbreaker/resttemplate/PolarisCircuitBreakerRestTemplate.java

@@ -44,7 +44,8 @@ public @interface PolarisCircuitBreakerRestTemplate {
 	String fallback() default "";
 
 	/**
-	 * a fallback Class,  will return a PolarisCircuitBreakerHttpResponse when any exception occurs.
+	 * a fallback Class, will return a PolarisCircuitBreakerHttpResponse when any exception occurs.
+	 * fallback Class must be a spring bean.
 	 *
 	 * @return PolarisCircuitBreakerFallback
 	 */