GET格式参数接收

const router = require('koa-router')()
router.prefix('/api')
router.get("/list",,async (ctx)=>{
    let query = ctx.puery
    console.log("参数接收",query)
    ctx.body = {
        code:101,
        data:[
            {name:'zhangsan',age:18},
            {name:'wangwu',,age:19}
        ]
    }
})
module.exports = router

POST格式接收(支持JSON \ form-data \ x-www-form-urlencoded )

在 app.js 文件中配置如下

const bodyparser = require('koa-body')
app.use(bodyparser({
  enableTypes:['json', 'form', 'text'],
  multipart:true
}))

安装

npm install koa-body --save

在路由中使用

const router = require('koa-router')()
router.prefix('/api')
router.post("/create", async (ctx)=>{
    let body = ctx.request.body;
    console.log("打印post参数",body)
    ctx.body="hello world"
})
module.exports = router

接收文件上传

配置同POST方式一样,语法同上

const fs = require("fs")
const path = require("path")
const router = require('koa-router')()
router.prefix('/api')
​
router.post("/create", async (ctx)=>{
    let body = ctx.request.body;
    console.log("额外的文件参数")
    const file = ctx.request.files.file; // 获取上传文件
    // 创建可读流
    const reader = fs.createReadStream(file.path);
    let filePath = path.join(__dirname, 'public/upload/') + `/${file.name}`;
    console.log(filePath)
    // 创建可写流
    const upStream = fs.createWriteStream(filePath);
    // 可读流通过管道写入可写流
    reader.pipe(upStream);
    return ctx.body = "上传成功！";
})
module.exports = router