Json-server 模拟后端接口

json-server，模拟rest接口，自动生成增删改查接口。(官网地址：json-server - npm)

使用方法：

1. 安装json-server，npm i json-server -g

2. 创建json文件，文件中存储list数据，db.json

objectivec 复制代码

{
  "posts": [
    { "id": "1", "title": "a title", "views": 100 },
    { "id": "2", "title": "another title", "views": 200 }
  ],
  "comments": [
    { "id": "1", "text": "a comment about post 1", "postId": "1" },
    { "id": "2", "text": "another comment about post 1", "postId": "1" }
  ],
  "profile": {
    "name": "typicode"
  }
}

3. 启动 json-server

终端进入到db.json所在目录，执行 npx json-server db.json 命令启动服务

注意：如果遇到下面报错，需要升级node版本

bash 复制代码

PS D:\workspace\learnui\vuex-demo\db> npx json-server index.json
npm WARN config global `--global`, `--local` are deprecated. Use `--location=global` instead.
file:///C:/Users/nantian/AppData/Roaming/npm/node_modules/json-server/lib/bin.js:4
import { parseArgs } from 'node:util';
         ^^^^^^^^^
SyntaxError: The requested module 'node:util' does not provide an export named 'parseArgs'
    at ModuleJob._instantiate (node:internal/modules/esm/module_job:128:21)
    at async ModuleJob.run (node:internal/modules/esm/module_job:194:5)
    at async Promise.all (index 0)
    at async ESMLoader.import (node:internal/modules/esm/loader:385:24)
    at async loadESM (node:internal/process/esm_loader:88:5)
    at async handleMainPromise (node:internal/modules/run_main:61:12)

服务启动成功，默认端口号3000

4. 访问接口

bash 复制代码

GET    http://localhost:3000/posts
GET    http://localhost:3000/posts/:id
POST   http://localhost:3000/posts
PUT    http://localhost:3000/posts/:id
PATCH  http://localhost:3000/posts/:id
DELETE http://localhost:3000/posts/:id


GET   http://localhost:3000/profile
PUT   http://localhost:3000/profile
PATCH http://localhost:3000/profile

5. json-server其他参数说明

PS D:\workspace\learnui\vuex-demo> json-server --help

Usage: json-server [options] <file>

Options:

-p, --port <port> Port (default: 3000)

-h, --host <host> Host (default: localhost)

-s, --static <dir> Static files directory (multiple allowed)

--help Show this message

--version Show version number