@PutMapping("fetch/{discoveryHandlerId}")
    public ShenyuAdminResult fetchData(@PathVariable("discoveryHandlerId") final String discoveryHandlerId) {

        proxySelectorService.fetchData(discoveryHandlerId);
        return ShenyuAdminResult.success();
    }
fetch data.

@param discoveryHandlerId discoveryHandlerId
@return {@linkplain ShenyuAdminResult}
shenyu-admin/src/main/java/org/apache/shenyu/admin/controller/ProxySelectorController.java