服务多个 reactjs 应用程序 - Nodejs + Express + React答案

【问题标题】：Serve multiple reactjs apps - Nodejs + Express + React服务多个 reactjs 应用程序 - Nodejs + Express + React
【发布时间】：2019-03-07 00:12:39
【问题描述】：

我正在尝试使用 Express 为两个独立的 Reactjs 应用程序提供服务。

App1

*主应用程序：显示不同的数据集。根前端

*路径：“/”（本地主机：5000/）

App2

*辅助应用程序：用户仪表板，特定的用户数据。

*路径：“/app”（本地主机：5000/app）

我遇到了类似的问题： 1:Serving multiple react apps with client-side routing in Express

但这并不能解决我的问题。

配置文件

App1 包.json

{
  "name": "app1",
  "version": "0.1.0",
  "private": true,
  "dependencies": {
    "@fortawesome/fontawesome-svg-core": "^1.2.4",
    "@fortawesome/free-solid-svg-icons": "^5.3.1",
    "@fortawesome/react-fontawesome": "^0.1.3",
    "axios": "^0.18.0",
    "classnames": "^2.2.5",
    "jwt-decode": "^2.2.0",
    "moment": "^2.22.0",
    "react": "^16.3.1",
    "react-dom": "^16.3.1",
    "react-image-gallery": "^0.8.11",
    "react-moment": "^0.7.0",
    "react-redux": "^5.0.7",
    "react-router-dom": "^4.2.2",
    "react-scripts": "1.1.4",
    "redux": "^3.7.2",
    "redux-thunk": "^2.2.0"
  },
  "scripts": {
    "start": "react-scripts start",
    "build": "react-scripts build",
    "test": "react-scripts test --env=jsdom",
    "eject": "react-scripts eject"
  },
  "proxy": "http://localhost:5000"
}

App2 包.json：

{
  "name": "app2",
  "version": "2.0.9",
  "private": true,
  "dependencies": {
    "@coreui/coreui": "^2.0.4",
    "@coreui/coreui-plugin-chartjs-custom-tooltips": "^1.2.0",
    "@coreui/icons": "0.3.0",
    "@coreui/react": "^2.0.5",
    "bootstrap": "^4.1.3",
    "chart.js": "^2.7.2",
    "classnames": "^2.2.6",
    "core-js": "^2.5.7",
    "enzyme": "^3.5.0",
    "enzyme-adapter-react-16": "^1.3.1",
    "flag-icon-css": "^3.0.0",
    "font-awesome": "^4.7.0",
    "prop-types": "^15.6.2",
    "react": "^16.4.2",
    "react-chartjs-2": "^2.7.2",
    "react-dom": "^16.4.2",
    "react-loadable": "^5.5.0",
    "react-router-config": "^1.0.0-beta.4",
    "react-router-dom": "^4.3.1",
    "react-test-renderer": "^16.4.2",
    "reactstrap": "^6.4.0",
    "simple-line-icons": "^2.4.1"
  },
  "devDependencies": {
    "babel-jest": "^23.4.2",
    "node-sass-chokidar": "^1.3.0",
    "npm-run-all": "^4.1.3",
    "react-scripts": "^1.1.5"
  },
  "scripts": {
    "build-css": "node-sass-chokidar --include-path ./node_modules ./src/scss -o ./src/scss",
    "watch-css": "npm run build-css && node-sass-chokidar --include-path ./node_modules ./src/scss -o ./src/scss --watch --recursive",
    "start-js": "react-scripts start",
    "start": "npm-run-all -p watch-css start-js",
    "build-js": "react-scripts build",
    "build": "npm-run-all build-css build-js",
    "test": "react-scripts test --env=jsdom",
    "eject": "react-scripts eject"
  },
  "proxy": "http://localhost:5000",
  "homepage": "http://localhost:5000/app2",
}

server.js

app.use("/app2", express.static(path.join(__dirname, "app2/build")));
app.get("app2/*", (req, res) => {
  res.sendFile(path.join(__dirname + "/app2/build/index.html"));
});

app.use(express.static(path.join(__dirname, "app1/build")));
app.get("*", (req, res) => {
  res.sendFile(path.join(__dirname + "/app1/build/index.html"));
});

localhost:5000 成功渲染 app1，但如果我尝试 localhost:5000/app2/，它实际上会在 app1 中查找 route=/app2/，因此我得到了一个空白页。

PS：我也试过这个solution，但还是没有好结果。

谢谢！

【问题讨论】：

您能发布您的 package.json 以便我们查看您正在使用的其他包吗？

标签： node.js reactjs express

【解决方案1】：

默认情况下，CRA 构建将假定您的应用程序是从根目录提供的。这就是您看到空白页面的原因 - 提供了 HTML，但对 js 和 css 的请求失败。（实际上，在您的情况下它成功了 - index.html 已返回，因为您的 server.js 文件底部有一个全部内容）

现在可以在package.json 中对其进行参数化

如果您的应用将在/app2 提供服务，您需要添加

//package.json
{
  //...
  "homepage":"app2"
}

然后您的输出文件将具有适当的参考。你可以去看看

我正在附加链接到CRA docs - 主页属性

【讨论】：