准备条件

1. 安装好node并且可以正常启动node

创建app

新建一个空文件夹之后并添加下列文件

• package.json

{
  "name": "react-ssr",
  "version": "1.0.0",
  "description": "",
  "main": "index.js",
  "scripts": {
    "dev": "ts-node-dev src/server.tsx",
    "start": "node -r ts-node/register src/server.tsx",
    "build": "tsc"
  },
  "keywords": [],
  "author": "SystemLight",
  "license": "MIT",
  "devDependencies": {
    "@types/node": "^14.14.19",
    "@types/react": "^17.0.0",
    "@types/react-dom": "^17.0.0",
    "@types/react-router": "^5.1.9",
    "typescript": "^4.1.3",
    "ts-node-dev": "^1.1.1"
  },
  "dependencies": {
    "react": "^17.0.1",
    "react-dom": "^17.0.1",
    "react-router": "^5.2.0"
  }
}

• tsconfig.json

{
  "include": [
    "src/**/*"
  ],
  "exclude": [
    "node_modules",
    "**/*.spec.ts"
  ],
  "compilerOptions": {
    /* Basic Options */

    /* Enable incremental compilation */
    // "incremental": true,

    /* Specify ECMAScript target version: 'ES3' (default), 'ES5', 'ES2015', 'ES2016', 'ES2017', 'ES2018', 'ES2019' or 'ESNEXT'. */
    "target": "esNext",
    /* Specify module code generation: 'none', 'commonjs', 'amd', 'system', 'umd', 'es2015', or 'ESNext'. */
    "module": "commonjs",
    /* Specify library files to be included in the compilation. */
    // "lib": [],

    /* Allow javascript files to be compiled. */
    "allowJs": false,
    /* Report errors in .js files. */
    // "checkJs": true,

    /* Specify JSX code generation: 'preserve', 'react-native', or 'react'. */
    "jsx": "react",
    /* Generates corresponding '.d.ts' file. */
    // "declaration": true,

    /* Generates a sourcemap for each corresponding '.d.ts' file. */
    // "declarationMap": true,

    /* Generates corresponding '.map' file. */
    "sourceMap": true,
    /* Concatenate and emit output to single file. */
    // "outFile": "./",

    /* Redirect output structure to the directory. */
    "outDir": "build/",
    /* Specify the root directory of input files. Use to control the output directory structure with --outDir. */
    // "rootDir": "./",

    /* Enable project compilation */
    // "composite": true,

    /* Specify file to store incremental compilation information */
    // "tsBuildInfoFile": "./",

    /* Do not emit comments to output. */
    "removeComments": false,
    /* Do not emit outputs. */
    "noEmit": false,
    /* Import emit helpers from 'tslib'. */
    // "importHelpers": true,

    /* Provide full support for iterables in 'for-of', spread, and destructuring when targeting 'ES5' or 'ES3'. */
    // "downlevelIteration": true,

    /* Transpile each file as a separate module (similar to 'ts.transpileModule'). */
    "isolatedModules": false,
    /* Strict Type-Checking Options */
    /* Enable all strict type-checking options. */
    "strict": true,
    /* Raise error on expressions and declarations with an implied 'any' type. */
    // "noImplicitAny": true,

    /* Enable strict null checks. */
    // "strictNullChecks": true,

    /* Enable strict checking of function types. */
    // "strictFunctionTypes": true,

    /* Enable strict 'bind', 'call', and 'apply' methods on functions. */
    // "strictBindCallApply": true,

    /* Enable strict checking of property initialization in classes. */
    // "strictPropertyInitialization": true,

    /* Raise error on 'this' expressions with an implied 'any' type. */
    // "noImplicitThis": true,

    /* Parse in strict mode and emit "use strict" for each source file. */
    // "alwaysStrict": true,

    /* Additional Checks */
    /* Report errors on unused locals. */
    // "noUnusedLocals": true,

    /* Report errors on unused parameters. */
    // "noUnusedParameters": true,

    /* Report error when not all code paths in function return a value. */
    // "noImplicitReturns": true,

    /* Report errors for fallthrough cases in switch statement. */
    // "noFallthroughCasesInSwitch": true,

    /* Module Resolution Options */
    /* Specify module resolution strategy: 'node' (Node.js) or 'classic' (TypeScript pre-1.6). */
    "moduleResolution": "node",
    /* Base directory to resolve non-absolute module names. */
    "baseUrl": "./",
    /* A series of entries which re-map imports to lookup locations relative to the 'baseUrl'. */
    "paths": {},
    /* List of root folders whose combined content represents the structure of the project at runtime. */
    // "rootDirs": [],

    /* List of folders to include type definitions from. */
    // "typeRoots": [],

    /* Type declaration files to be included in compilation. */
    // "types": [],

    /* Allow default imports from modules with no default export. This does not affect code emit, just typechecking. */
    "allowSyntheticDefaultImports": true,
    /* Enables emit interoperability between CommonJS and ES Modules via creation of namespace objects for all imports. Implies 'allowSyntheticDefaultImports'. */
    "esModuleInterop": true,
    /* Do not resolve the real path of symlinks. */
    // "preserveSymlinks": true,

    /* Allow accessing UMD globals from modules. */
    // "allowUmdGlobalAccess": true,

    /* Source Map Options */
    /* Specify the location where debugger should locate TypeScript files instead of source locations. */
    // "sourceRoot": "",

    /* Specify the location where debugger should locate map files instead of generated locations. */
    // "mapRoot": "",

    /* Emit a single file with source maps instead of having a separate file. */
    // "inlineSourceMap": true,

    /* Emit the source alongside the sourcemaps within a single file; requires '--inlineSourceMap' or '--sourceMap' to be set. */
    // "inlineSources": true,

    /* Experimental Options */
    /* Enables experimental support for ES7 decorators. */
    "experimentalDecorators": true,
    /* Enables experimental support for emitting type metadata for decorators. */
    // "emitDecoratorMetadata": true,

    /* Advanced Options */
    /* Disallow inconsistently-cased references to the same file. */
    "forceConsistentCasingInFileNames": true,
    "resolveJsonModule": false,
    "skipLibCheck": true
  }
}

src/server.tsx

import React from "react";
import ReactDOMServer from "react-dom/server";
import {StaticRouter, Redirect} from "react-router";

import * as http from "http";

http.createServer((req, res) => {
    res.write(ReactDOMServer.renderToString(
        <StaticRouter location={req.url}>
            <div>hello React SSR</div>
        </StaticRouter>
    ));
    res.end();
}).listen(3000);

启动应用程序

npm i & npm run start

成功启动后访问：http://localhost:3000