UnhandledPromiseRejectionWarning报错send()的处理

先看报错:

(node:24460) UnhandledPromiseRejectionWarning: TypeError: Cannot read property 'send' of undefinedat getAllUser (file:///G:/MarkDownNote/vue/example_code/apiTest/controler/user_ctrl.js:6:6)   at processTicksAndRejections (internal/process/task_queues.js:95:5)
(Use `node --trace-warnings ...` to show where the warning was created)
(node:24460) UnhandledPromiseRejectionWarning: Unhandled promise rejection. This error originated either by throwing inside of an async function without a catch block, or by rejecting a promise which was not handled with .catch(). T
o terminate the node process on unhandled promise rejection, use the CLI flag `--unhandled-rejections=strict` (see https://nodejs.org/api/cli.html#cli_unhandled_rejections_mode). (rejection id: 1)
(node:24460) [DEP0018] DeprecationWarning: Unhandled promise rejections are deprecated. In the future, promise rejections that are not handled will terminate the Node.js process with a non-zero exit code.

代码:

import db from '../db/index.js'//导出getAllUser
export async function getAllUser (req, res) {const [rows] = await db.query('select id,username,nickname from ev_user')res.send({status: 0,message: 'success',data: rows})/*res.status(200).json({status: 0,message: 'success',data: rows})*/
}// console.log(getAllUser())getAllUser()/*.catch(() => {console.log('error already done')
})*/

主要报错是:UnhandledPromiseRejectionWarning,关于这个也不再赘述,毕竟有很多博客写过这个报错的原因,
它报错在send,说明getAllUser()这个方法没有失败的处理函数,需要在调用时,处理:

getAllUser().then(()=>{console.log('then')},()=>{console.log('catch')})
// 或者:
getAllUser().catch(() => {console.log('error already done')
})

UnhandledPromiseRejectionWarning报错send()的处理相关推荐

记录webpack使用问题，使用报错“UnhandledPromiseRejectionWarning，file-loader图片过大，无法加载图片，打包html文件报错TypeError
记录webpack使用报错版本号问题运行npm run build,报错 "UnhandledPromiseRejectionWarning: TypeError: this.getRe ...
搭建elsticsearch集群报错 failed to send join request to master [{data-node-0}(已经测试)
版权声明:本文为博主原创文章,未经博主允许不得转载. https://blog.csdn.net/qq_24879495/article/details/77718032 搭建elsticsea ...
TypeError: can‘t send non-None value to a just-started generator-python报错问题
https://blog.csdn.net/hanhanwanghaha宝藏女孩欢迎您的关注! 欢迎关注微信公众号:宝藏女孩的成长日记如有转载,请注明出处(如不注明,盗者必究) TypeError ...
Nginx报错：upstream timed out (110: Connection timed out)和client intended to send too large body【转】...
nginx日志报错 2018/01/26 16:36:49 [error] 23327#0: *54953 upstream timed out (110: Connection timed out) ...
【Flink】Flink 写入 kafka 报错 Failed to send data to Kafka: Expiring 4 record(s) for 20001 ms has passed
文章目录 1.场景1 1.1 概述 1.2 百度 1.3 同样问题 2.场景再现本文为博主九师兄(QQ:541711153 欢迎来探讨技术)原创文章,未经允许博主不允许转载. 1.场景1 1.1 概 ...
requests模块报错：Use body.encode('utf-8') if you want to send it encoded in UTF-8.
在做企业向微信用户个人付款功能时,调用第三方sdk,在进行 requests 的post请求时, 代码如下 req = requests.post(url, data=data,cert(ap ...
Ubuntu执行脚本报错-bash: ./send.py: /usr/bin/python: bad interpreter: Permission denied
在Ubuntu系统终端中,使用命令行如下命令行运行*.py文件: 执行脚本报错 root@ubuntu:/usr/bin/python# chmod a+x send.py root@ubuntu:/ ...
解决Pycharm绘图报错：Error: failed to send plot to http://127.0.0.1:63342
pycharm 2021.3.3专业版, python scientific模式使用plt.show()绘制的图像只能在工具窗口(SciView)中显示,无法使用弹出窗口,取消"在工具窗口 ...
ng serve 报错： 95% emitting LicenseWebpackPlugin(node:21768) UnhandledPromiseRejectionWarning…
今天升级了Angular-cli版本到:Angular CLI: 6.2.4 后,初始化了个新项目,cnpm install 安装好依赖后 ng serve 报错. 报错信息如下: ** Angula ...

UnhandledPromiseRejectionWarning报错send()的处理

UnhandledPromiseRejectionWarning报错send()的处理相关推荐

最新文章

热门文章