spring cloud gateway 动态添加路由

# application.yml
spring:
  cloud:
    gateway:
      routes:
        - id: service1
          uri: lb://service1
          predicates:
            - Path=/service1/**
          filters:
            - StripPrefix=1

@RestController
public class GatewayController {

    @Autowired
    private RouteDefinitionLocator routeDefinitionLocator;

    @Autowired
    private RouteDefinitionWriter routeDefinitionWriter;

    @PostMapping("/routes")
    public ResponseEntity<String> addRoute(@RequestBody RouteDefinition routeDefinition) {
        routeDefinitionWriter.save(Mono.just(routeDefinition)).subscribe();
        return ResponseEntity.ok("Route added successfully");
    }
}

@Component
public class DatabaseRouteDefinitionLocator implements RouteDefinitionLocator {

    @Autowired
    private RouteRepository routeRepository;

    @Override
    public Flux<RouteDefinition> getRouteDefinitions() {
        return routeRepository.findAll().map(this::convertToRouteDefinition);
    }

    private RouteDefinition convertToRouteDefinition(RouteEntity entity) {
        RouteDefinition definition = new RouteDefinition();
        definition.setId(entity.getId());
        definition.setUri(URI.create(entity.getUri()));
        // 设置断言和过滤器
        return definition;
    }
}