Question

我目前正在通过Go服务器渲染Webpack构建文件（bundle.js）。如何使构建文件热加载，或者需要执行什么操作才能从Go服务器提供热加载文件？

当我使用'npm run start'脚本时，被告知webpack输出是从 http://localhost:3000/dist/

我的目录如下

+ public
  - bundle.js
+ src
  - App.js
  - index.js
- index.html
- package.json
- server.go
- webpack.config.js

// index.html

<!DOCTYPE html>
<html>

<head>
  <meta charset="UTF-8" />
  <meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no">
  <title>React Starter</title>
</head>

<body>
  <div id="root"></div>
  <noscript>
    You need to enable JavaScript to run this app.
  </noscript>
  <script src="/public/bundle.js"></script> 
</body>

</html>

// webpack配置

const path = require("path");
const webpack = require("webpack");

module.exports = {
  entry: "./src/index.js",
  mode: "development",
  module: {
    rules: [
      {
        test: /\.(js|jsx)$/,
        exclude: /(node_modules|bower_components)/,
        loader: "babel-loader",
        options: { presets: ["@babel/env"] }
      },
      {
        test: /\.css$/,
        use: ["style-loader", "css-loader"]
      }
    ]
  },
  resolve: { extensions: ["*", ".js", ".jsx"] },
  output: {
    path: path.join(__dirname, "/public"),
    publicPath: "/public/",
    filename: "bundle.js"
  },
  devServer: {
    contentBase: path.join(__dirname, "/"),
    port: 3000,
    publicPath: "http://localhost:3000/dist/",
    hotOnly: true
  },
  plugins: [new webpack.HotModuleReplacementPlugin()]
};

// package.json

{
  "name": "r-proj",
  "version": "1.0.0",
  "description": "",
  "main": "index.js",
  "scripts": {
    "test": "echo \"Error: no test specified\" && exit 1",
    "start": "webpack-dev-server --mode development",
    "build": "webpack --mode development",
    "a": "webpack-dev-server --content-base src --hot --inline"
  },
  "keywords": [],
  "author": "",
  "license": "ISC",
  "devDependencies": {
    "@babel/cli": "^7.1.0",
    "@babel/core": "^7.1.0",
    "@babel/preset-env": "^7.1.0",
    "@babel/preset-react": "^7.0.0",
    "babel-loader": "^8.0.2",
    "css-loader": "^1.0.0",
    "style-loader": "^0.23.0",
    "webpack": "^4.19.1",
    "webpack-cli": "^3.1.1",
    "webpack-dev-server": "^3.1.8"
  },
  "dependencies": {
    "react": "^16.5.2",
    "react-dom": "^16.5.2"
  }
}

// server.go

func handler(w http.ResponseWriter, r *http.Request) {
  t, _ := template.ParseFiles("./index.html")
  t.Execute(w, "")
}

func main() {
  http.HandleFunc("/", handler)
  fs := http.FileServer(http.Dir("./public/"))

  http.Handle("/public/", http.StripPrefix("/public", fs)) 

  log.Fatal(http.ListenAndServe(":8080", nil))
}

谢谢。

从Go Server渲染React

0 个答案: