@GetMapping("/test")
	public ResponseEntity<String> test() {
		return new ResponseEntity<>("error", HttpStatus.INTERNAL_SERVER_ERROR);
	}
Provide interfaces to consumers.

@author fangjian0423, MieAh
spring-cloud-alibaba-examples/nacos-example/nacos-discovery-example/nacos-discovery-provider-example/src/main/java/com/alibaba/cloud/examples/EchoController.java