我已将react-rails
添加到一个我们正在慢慢迁移以进行响应的现有项目中。
当前的webpacker.yml
default: &default
source_path: app/javascript
source_entry_path: packs
public_output_path: packs
cache_path: tmp/cache/webpacker
# Additional paths webpack should lookup modules
# ['app/assets', 'engine/foo/app/assets']
resolved_paths: []
# Reload manifest.json on all requests so we reload latest compiled packs
cache_manifest: false
extensions:
- .jsx
- .js
- .sass
- .scss
- .css
- .module.sass
- .module.scss
- .module.css
- .png
- .svg
- .gif
- .jpeg
- .jpg
- .tsx
- .ts
development:
<<: *default
compile: true
# Reference: https://webpack.js.org/configuration/dev-server/
dev_server:
https: false
host: localhost
port: 3035
public: localhost:3035
hmr: true
# Inline should be set to true if using HMR
inline: true
overlay: true
compress: true
disable_host_check: true
use_local_ip: false
quiet: false
headers:
'Access-Control-Allow-Origin': '*'
watch_options:
ignored: /node_modules/
我在一个终端中启动rails应用程序,并在另一终端中启动./bin/webpack-dev-server
,我可以看到热模块出现在编译中:
[./node_modules/webpack-dev-server/client/index.js?http://localhost:3035] (webpack)-dev-server/client?http://localhost:3035 7.93 kB {0} {1} [built]
[./node_modules/webpack-dev-server/client/overlay.js] (webpack)-dev-server/client/overlay.js 3.67 kB {0} {1} [built]
[./node_modules/webpack/hot/dev-server.js] (webpack)/hot/dev-server.js 1.61 kB {0} {1} [built]
[./node_modules/webpack/hot/emitter.js] (webpack)/hot/emitter.js 77 bytes {0} {1} [built]
[./node_modules/webpack/hot/log-apply-result.js] (webpack)/hot/log-apply-result.js 1.31 kB {0} {1} [built]
[./node_modules/webpack/hot/log.js] (webpack)/hot/log.js 1.04 kB {0} {1} [built]
[0] multi (webpack)-dev-server/client?http://localhost:3035 webpack/hot/dev-server ./app/javascript/packs/application.js 52 bytes {1} [built]
[1] multi (webpack)-dev-server/client?http://localhost:3035 webpack/hot/dev-server ./app/javascript/packs/server_rendering.js 52 bytes {0} [built]
问题是,当我运行./bin/webpack-dev-server
时,每次更新我的React文件(而不是刚刚更新的组件)时,都会刷新整页。全页刷新仅在开发服务器运行时发生。另外,在刷新整个页面之前,我看不到组件更新。
问题是,为什么webpack-dev-server发出浏览器页面刷新信号,为什么组件不热重载?
答案 0 :(得分:1)
这是Webpack HMR的工作方式,如果要在react模块上启用HMR,可以尝试使用React Hot Loader的Webpack plugin
。将react-hot-loader
与yarn
。编辑.babelrc
文件,并将react-hot-loader/babel
添加到插件列表中。
。使您的React组件“热”。
import React from 'react'
import { hot } from 'react-hot-loader'
class Example extends React.Component {
}
export default hot(module)(Example);