Node使用`express`做简易数据测试服务

初始化项目

执行 npm init
添加启动服务命令"start": "node app.js"到scripts节点下,npm start就为配置后的启动命令
添加依赖"express": "^4.16.3"到dependencies节点下
安装依赖 npm i

配置项目

根目录创建app.js,初始化内容

//导入相关模块
const express = require("express");
const path = require("path");
const app = express();

//请根目录创建`public`文件夹,并添加`index.html`为首页面
app.use(express.static(path.resolve(__dirname,"public")));

//================↓=↓=↓=↓=↓=配置接口信息=↓=↓=↓=↓=↓================
app.use("/getUserInfo",require("./router/userInfo"))
//================↑=↑=↑=↑=↑=配置接口信息=↑=↑=↑=↑=↑================

const port = 3000;
//服务监听
app.listen(port,()=>{
    console.log(`server running @http://localhost:${port}`);
});

module.exports = app;

//导入相关模块
const express = require("express");
const path = require("path");
const app = express();

//请根目录创建`public`文件夹,并添加`index.html`为首页面
app.use(express.static(path.resolve(__dirname,"public")));

//================↓=↓=↓=↓=↓=配置接口信息=↓=↓=↓=↓=↓================
app.use("/getUserInfo",require("./router/userInfo"))
//================↑=↑=↑=↑=↑=配置接口信息=↑=↑=↑=↑=↑================

const port = 3000;
//服务监听
app.listen(port,()=>{
    console.log(`server running @http://localhost:${port}`);
});

module.exports = app;

根目录创建router目录,初始化内容

//导入相关依赖
const express = require("express");
const router = express();

//配置路由
router.get("/",(req,res) => {

    //get请求参数读取
    //const shopId = req.query.shopId;
    //console.log(shopId);

    //组装返回数据
    let data = {
        "code":"0",
        "message":"success",
        "data":[
            {
                "name":"张三",
            },
            {
                "name":"李四",
            },
            {
                "name":"王五",
            },
        ]
    };
    //发送需要返回到前端的数据
    res.send(data);
});

module.exports = router;

//导入相关依赖
const express = require("express");
const router = express();

//配置路由
router.get("/",(req,res) => {

    //get请求参数读取
    //const shopId = req.query.shopId;
    //console.log(shopId);

    //组装返回数据
    let data = {
        "code":"0",
        "message":"success",
        "data":[
            {
                "name":"张三",
            },
            {
                "name":"李四",
            },
            {
                "name":"王五",
            },
        ]
    };
    //发送需要返回到前端的数据
    res.send(data);
});

module.exports = router;

复杂版POST请求

//导入相关依赖
const express = require("express");
const router = express();
let bodyParser = require('body-parser');
let urlencoderParser = bodyParser.urlencoded({extended:false});

//拼装返回数据中的部分信息
const base_url = "http://127.0.0.1:3000/images/goods/";

//配置路由
router.post("/",urlencoderParser,(req,res) => {
    //post请求参数读取
    let shopId = req.body.shopId;
    console.log(shopId);

    //组装返回数据
    let goods = {
        "code":"0",
        "message":"success",
        "data":[
            {
                "name": "法国代购新款江疏影同款翻领修身中长裙春夏印花连衣裙",
                "image": base_url + "001/cover.jpg",
                "presentPrice": 98.88,
                "goodsId": "001",
                "oriPrice": 108.88
            }, {
                "name": "柔美而精致~高贵而优雅~圆领金银丝春季毛衣羊毛开衫女短款白外套",
                "image": base_url + "002/cover.jpg",
                "presentPrice": 229.90,
                "goodsId": "002",
                "oriPrice": 320.99
            }
        ]
    };

    res.send(goods);
});

//发送需要返回到前端的数据
module.exports = router;

//导入相关依赖
const express = require("express");
const router = express();
let bodyParser = require('body-parser');
let urlencoderParser = bodyParser.urlencoded({extended:false});

//拼装返回数据中的部分信息
const base_url = "http://127.0.0.1:3000/images/goods/";

//配置路由
router.post("/",urlencoderParser,(req,res) => {
    //post请求参数读取
    let shopId = req.body.shopId;
    console.log(shopId);

    //组装返回数据
    let goods = {
        "code":"0",
        "message":"success",
        "data":[
            {
                "name": "法国代购新款江疏影同款翻领修身中长裙春夏印花连衣裙",
                "image": base_url + "001/cover.jpg",
                "presentPrice": 98.88,
                "goodsId": "001",
                "oriPrice": 108.88
            }, {
                "name": "柔美而精致~高贵而优雅~圆领金银丝春季毛衣羊毛开衫女短款白外套",
                "image": base_url + "002/cover.jpg",
                "presentPrice": 229.90,
                "goodsId": "002",
                "oriPrice": 320.99
            }
        ]
    };

    res.send(goods);
});

//发送需要返回到前端的数据
module.exports = router;

访问图片http://localhost:3000/images/goods/001/1.jpg

在public目录下增加images/goods/001目录并在001目录下添加名称为1.jpg图片

在public目录下增加images/goods/001目录并在001目录下添加名称为1.jpg图片

Node使用express做简易数据测试服务 ​

初始化项目 ​

配置项目 ​

Node使用`express`做简易数据测试服务

初始化项目

配置项目