{"action":"closed","issue":{"url":"https://api.github.com/repos/eggjs/egg/issues/3287","repository_url":"https://api.github.com/repos/eggjs/egg","labels_url":"https://api.github.com/repos/eggjs/egg/issues/3287/labels{/name}","comments_url":"https://api.github.com/repos/eggjs/egg/issues/3287/comments","events_url":"https://api.github.com/repos/eggjs/egg/issues/3287/events","html_url":"https://github.com/eggjs/egg/issues/3287","id":389161983,"node_id":"MDU6SXNzdWUzODkxNjE5ODM=","number":3287,"title":"中间件重复使用的问题","user":{"login":"xuezier","id":7692708,"node_id":"MDQ6VXNlcjc2OTI3MDg=","avatar_url":"https://avatars2.githubusercontent.com/u/7692708?v=4","gravatar_id":"","url":"https://api.github.com/users/xuezier","html_url":"https://github.com/xuezier","followers_url":"https://api.github.com/users/xuezier/followers","following_url":"https://api.github.com/users/xuezier/following{/other_user}","gists_url":"https://api.github.com/users/xuezier/gists{/gist_id}","starred_url":"https://api.github.com/users/xuezier/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/xuezier/subscriptions","organizations_url":"https://api.github.com/users/xuezier/orgs","repos_url":"https://api.github.com/users/xuezier/repos","events_url":"https://api.github.com/users/xuezier/events{/privacy}","received_events_url":"https://api.github.com/users/xuezier/received_events","type":"User","site_admin":false},"labels":[],"state":"closed","locked":false,"assignee":null,"assignees":[],"milestone":null,"comments":5,"created_at":"2018-12-10T06:46:06Z","updated_at":"2018-12-10T09:38:28Z","closed_at":"2018-12-10T09:38:28Z","author_association":"NONE","body":"看了下egg-core的loader\r\nhttps://github.com/eggjs/egg-core/blob/df1cc5bd5b0764491e15a31932b357115371cf00/lib/loader/mixin/middleware.js#L63\r\n![image](https://user-images.githubusercontent.com/7692708/49715026-19014480-fc8a-11e8-8e4d-c1f030450673.png)\r\n似乎作者的想法是一个全局中间件只能被挂载一次，如果我一个中间件想多次挂载的话怎么做？\r\n这里考虑的出发点是什么？能否周知学习一下？"}}
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