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HarmonyOS
项目引入了 element-ui，我在vue组件中写了一些样式来覆盖element的样式。但是run build 打包后，css文件中element相关的样式都在我写的样式之后，导致覆盖失败了。run dev开发环境没这样的问题
附上打包配置，都是vue脚手架自动生成的，也没有改动过。求指教可能是什么原因引起的？对webpack用的还不够熟练。。
var path = require('path')
var utils = require('./utils')
var webpack = require('webpack')
var config = require('../config')
var merge = require('webpack-merge')
var baseWebpackConfig = require('./webpack.base.conf')
var CopyWebpackPlugin = require('copy-webpack-plugin')
var HtmlWebpackPlugin = require('html-webpack-plugin')
var ExtractTextPlugin = require('extract-text-webpack-plugin')
var OptimizeCSSPlugin = require('optimize-css-assets-webpack-plugin')
var env = process.env.NODE_ENV === 'testing'
? require('../config/test.env')
: config.build.env
var webpackConfig = merge(baseWebpackConfig, {
module: {
rules: utils.styleLoaders({
sourceMap: config.build.productionSourceMap,
extract: true
})
},
devtool: config.build.productionSourceMap ? '#source-map' : false,
output: {
path: config.build.assetsRoot,
filename: utils.assetsPath('js/[name].[chunkhash].js'),
chunkFilename: utils.assetsPath('js/[id].[chunkhash].js')
},
plugins: [
// http://vuejs.github.io/vue-loader/en/workflow/production.html
new webpack.DefinePlugin({
'process.env': env
}),
new webpack.optimize.UglifyJsPlugin({
compress: {
warnings: false
},
sourceMap: true
}),
// extract css into its own file
new ExtractTextPlugin({
filename: utils.assetsPath('css/[name].[contenthash].css')
}),
// Compress extracted CSS. We are using this plugin so that possible
// duplicated CSS from different components can be deduped.
new OptimizeCSSPlugin({
cssProcessorOptions: {
safe: true
}
}),
// generate dist index.html with correct asset hash for caching.
// you can customize output by editing /index.html
// see https://github.com/ampedandwired/html-webpack-plugin
new HtmlWebpackPlugin({
filename: process.env.NODE_ENV === 'testing'
? 'index.html'
: config.build.index,
template: 'index.html',
inject: true,
minify: {
removeComments: true,
collapseWhitespace: true,
removeAttributeQuotes: true
// more options:
// https://github.com/kangax/html-minifier#options-quick-reference
},
// necessary to consistently work with multiple chunks via CommonsChunkPlugin
chunksSortMode: 'dependency'
}),
// split vendor js into its own file
new webpack.optimize.CommonsChunkPlugin({
name: 'vendor',
minChunks: function (module, count) {
// any required modules inside node_modules are extracted to vendor
return (
module.resource &&
/\.js$/.test(module.resource) &&
module.resource.indexOf(
path.join(__dirname, '../node_modules')
) === 0
)
}
}),
// extract webpack runtime and module manifest to its own file in order to
// prevent vendor hash from being updated whenever app bundle is updated
new webpack.optimize.CommonsChunkPlugin({
name: 'manifest',
chunks: ['vendor']
}),
// copy custom static assets
new CopyWebpackPlugin([
{
from: path.resolve(__dirname, '../static'),
to: config.build.assetsSubDirectory,
ignore: ['.*']
}
])
]
})
if (config.build.productionGzip) {
var CompressionWebpackPlugin = require('compression-webpack-plugin')
webpackConfig.plugins.push(
new CompressionWebpackPlugin({
asset: '[path].gz[query]',
algorithm: 'gzip',
test: new RegExp(
'\\.(' +
config.build.productionGzipExtensions.join('|') +
')$'
),
threshold: 10240,
minRatio: 0.8
})
)
}
if (config.build.bundleAnalyzerReport) {
var BundleAnalyzerPlugin = require('webpack-bundle-analyzer').BundleAnalyzerPlugin
webpackConfig.plugins.push(new BundleAnalyzerPlugin())
}
module.exports = webpackConfig
我自己样式使用scss,引入组件库的样式是css,也出现了这个问题，编写方式不一样时，不能靠改变顺序解决，我通过创建多个ExtractTextPlugin插件实例解决了问题：
（extract-text-plugin.js）
新建了2个ExtractTextPlugin实例，extractApp（用于提出自己写的样式scss）, extractCommon(用于引入的样式，我的项目里是css)，注意这里的路径static是在config/index.js里build下配置的assetsSubDirectory属性
在utils.js中引入，因为我的样式是scss写的，这里就这样改了(在cssLoaders函数中)。
最后在webpack.prod.conf.js中引入这两个实例，放到plugins属性下，注意这里放置的顺序就是打包好后在index.html中引入的顺序，然后注释掉原来的new ExtractTextPlugin({...})这个插件。
最后打包出来是两个文件，自己scss写的和引入的样式分离了，通过控制引入顺序就能解决覆盖问题。