1.请求(ctx.request)的信息

    1. {
    2.     method: "GET",
    3.     url: "/",
    4.     header: {
    5.         host: "localhost:3000",
    6.         connection: "keep-alive",
    7.         cache-control: "max-age=0",
    8.         upgrade-insecure-requests: "1",
    9.         user-agent: "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/69.0.3497.100 Safari/537.36",
    10.         accept: "text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,image/apng,*/*;q=0.8",
    11.         accept-encoding: "gzip, deflate, br",
    12.         accept-language: "zh-CN,zh;q=0.9,en;q=0.8"
    13.     }
    14. }

    2.浏览器输入，如图
    ctx.request => ctx.originalUrl和ctx.origin - 图1

    3.域名端口号后面信息(ctx.originalUrl)

    1. /inde.html?username=ziye&pwd=123456

    4.域名端口信息(ctx.origin)

    1. http://localhost:3000

    5.刚刚好，一个完整的请求地址被ctx.origin和ctx.originalUrl拆开.相反可以组合成一条请求地址