apollo-portal/src/main/java/com/ctrip/framework/apollo/openapi/v1/controller/ReleaseController.java/ReleaseController/loadLatestActiveRelease
class ReleaseController:  @GetMapping(value = "/apps/{appId}/clusters/{clusterName}/namespaces/{namespaceName}/releases/latest")
  public OpenReleaseDTO loadLatestActiveRelease(@PathVariable String appId, @PathVariable String env,
                                                @PathVariable String clusterName, @PathVariable
                                                    String namespaceName) {
    return this.releaseOpenApiService.getLatestActiveRelease(appId, env, clusterName, namespaceName);
  }