几天来我一直在努力解决这个问题，但一直无法按照我需要的方式进行。我找不到其他使用带有.net core的Browsersync的人的例子，这甚至可能就是我遇到所有这些问题的原因。但是我找不到任何证据可以证明这一点，也无法理解为什么会如此。
无论如何...我已经在gulp文件中正常运行了sass / js所需的所有内容，以处理错误等。我对gulp并不陌生，否则我会责怪我缺乏经验我无能为力。
这是我的gulp文件，后面是运行gulp时的输出。
默认任务：
const gulp = require("gulp"),
uglify = require("gulp-uglify"),
sass = require("gulp-sass"),
rename = require('gulp-rename'),
sassGlob = require('gulp-sass-glob'),
postcss = require('gulp-postcss'),
autoprefixer = require('gulp-autoprefixer'),
sourcemaps = require('gulp-sourcemaps'),
cleanCSS = require('gulp-clean-css'),
concat = require('gulp-concat'),
msbuild = require('gulp-msbuild'),
through = require('through2'),
notifier = require('node-notifier'),
browserSync = require('browser-sync').create();
// Static Server + watching scss/html files
gulp.task('serve', ['sass', 'compileJS'], function() {
browserSync.init({
proxy : {
target: "https://localhost:3000",
},
files: ['./wwwroot/css/*'],
rewriteRules: [
{
match: new RegExp('/css/main.min.css'),
fn: function() {
return './wwwroot/css/main.min.css'
}
}
]
});
//Watch for any changes to the scss files.
gulp.watch('./wwwroot/sass/**/*.scss', ['sass']);
//Watch for any changes to the js files, reload after those changes are made.
gulp.watch('./wwwroot/js/source/*.js', ['compileJS']).on('change', browserSync.reload);
//Watch for any changes to a .cshtml file and reload the browser if/when that change happens.
gulp.watch("./**/*.cshtml").on('change', browserSync.reload);
});
gulp.task('default', ['serve']);
/**
* Compiles SASS files and stores the result into the public folder
*/
gulp.task('sass', function () {
return gulp.src('./wwwroot/sass/main.scss')
.pipe(sassGlob())
.pipe(sass().on('error', function (err) {
console.log('Sass Error:', err.toString());
notifier.notify({
'title': 'Gettin\' Sassy ♀️',
'message': 'You goofed. Check your terminal window for more information.'
});
this.emit("end");
}))
.pipe(postcss([require('autoprefixer')]))
.pipe(
autoprefixer({
browsers: ['last 2 versions'],
cascade: false
})
)
.pipe(
through.obj(function(chunk, enc, cb) {
cb(null, chunk)
})
)
.pipe(cleanCSS({compatibility: 'ie8',
level: 2}))
.pipe(rename({suffix: '.min'}))
.pipe(gulp.dest('./wwwroot/css'))
.pipe(browserSync.stream());
});
/**
* Compiles the Javascript files and stores the result in the public folder
*/
gulp.task('compileJS', function (done) {
return gulp.src('./wwwroot/js/source/*.js')
.pipe(sourcemaps.init())
.pipe(concat('main.js'))
.pipe(uglify().on('error', function (err) {
console.log('JS Uglify Error:', err.toString());
notifier.notify({
'title': 'JS Compile Error',
'message': 'Something about your JS is a little off. Check yourself before you wreck yourself.'
});
this.emit("end");
}))
.pipe(rename({suffix: '.min'}))
.pipe(sourcemaps.write('../maps'))
.pipe(gulp.dest('./wwwroot/js/dist'));
});
输出：
$ gulp
[21:34:15] Using gulpfile
~/Repos/PROJECT_DIRECTORY/PROJECT_NAME/gulpfile.js
[21:34:15] Starting 'sass'...
[21:34:15] Starting 'compileJS'...
[21:34:15] Finished 'sass' after 437 ms
[21:34:15] Finished 'compileJS' after 426 ms
[21:34:15] Starting 'serve'...
[21:34:16] Finished 'serve' after 1 s
[21:34:16] Starting 'default'...
[21:34:16] Finished 'default' after 68 μs
[Browsersync] Proxying: https://localhost:3000
[Browsersync] Access URLs:
------------------------------------
Local: https://localhost:3000
External: https://10.0.0.137:3000
------------------------------------
UI: http://localhost:3001
UI External: http://localhost:3001
------------------------------------
[21:34:35] Starting 'sass'...
[Browsersync] 1 file changed (main.min.css)
[21:34:35] Finished 'sass' after 207 ms
[21:34:58] Starting 'compileJS'...
[21:34:58] Finished 'compileJS' after 154 ms
[Browsersync] Reloading Browsers...
因此，查看该输出，您可能会想到：“这个家伙是个白痴……Browsersync声明正在重新加载浏览器...”正确，它声明了这一点，但并未重新加载浏览器。 Browsersync也同样无法将CSS注入浏览器。
正如我所提到的，我以前使用过gulp，并且此设置也紧密代表了我在进行Wordpress开发时使用的gulp文件。但是，它不适用于该项目（这使我陷入了.net核心/ Visual Studio的怀疑）。
答案 0 :(得分：0)
您可以做这样的事情
创建一个对应用程序全局的环境变量，然后在视图的结束标记上方添加以下代码。
此代码是我在Laravel中使用Blade模板进行操作的方式，但它应该与用.NET替换它的方式完全相同，我认为它们使用Razor模板引擎：）
{{-- Live reload with browser sync --}}
@if (!empty(env('APP_ENV')) && env('APP_ENV') === 'local')
<script
async
defer
src="{{ URL::to('/') . ':3000/browser-sync/browser-sync-client.js?v=2.26.7'}}">
</script>
@endif
希望这对您有所帮助。
出于兴趣的考虑，下面是我的口水管道：
const browserSync = require("browser-sync");
const sass = require("gulp-sass");
const autoprefixer = require("gulp-autoprefixer");
const sourcemaps = require("gulp-sourcemaps");
const rename = require("gulp-rename");
const reviser = require("gulp-rev");
const runSequence = require("run-sequence");
gulp.task("browserSync", function() {
return browserSync.init({
open: false,
https: false,
notify: false,
injectChanges: true,
proxy: "http://{site-name-here}.local/",
});
});
gulp.task("compile:scss", function() {
return (
gulp
// Gets the main.scss file
.src("resources/assets/scss/main.scss")
// Passes it through a gulp-sass, log errors to console
.pipe(sass().on("error", sass.logError))
// Adds versioning
.pipe(reviser())
// Add vendor prefixes
.pipe(
autoprefixer({
browsers: ["last 2 versions"],
cascade: false
})
)
// Rename the file
.pipe(rename({ suffix: ".min" }))
// Outputs it in the css folder
.pipe(gulp.dest("public/css"))
// Add sourcemaps
.pipe(sourcemaps.write())
// Adds versioned file to manifest so we can access with the same name
.pipe(reviser.manifest("manifest/rev-manifest.json"), { merge: true })
// Outputs it in the css folder
.pipe(gulp.dest("public/css"))
.pipe(
browserSync.reload({
// Reloading with Browser Sync
stream: true
})
)
);
});
// Watchers
gulp.task("watch", function() {
gulp.watch(["./resources/assets/scss/**/*"], "compile:scss", browserSync.reload);
});
// Default task
gulp.task("start", function(callback) {
return runSequence(
"browserSync",
"compile:scss",
"watch",
callback
);
});
要使用它，我只需运行gulp start
请记住，像这样运行gulp，您将需要全局安装gulp。为此运行npm install --global gulp-cli