全局变量在ts文件中无法获取的问题？

Question

main.ts中设置了两个全局变量，但是在axios/index.ts中显示无法获取是为什么呢

const app = createApp(App)
const redirectUrl = document.querySelector("html").getAttribute("redirect-url")
const loginUrl = document.querySelector("html").getAttribute("login-url")

app.config.globalProperties.$RedirectUrl = redirectUrl
app.config.globalProperties.$LoginUrl = loginUrl


axios中：

import { getCurrentInstance } from 'vue'
const instance = getCurrentInstance()?.proxy //输出undefined
const redirectUrl = instance?.$RedirectUrl //爆红类型“ComponentPublicInstance<{}, {}, {}, {}, {}, {}, {}, {}, false, ComponentOptionsBase<any, any, any, any, any, any, any, any, any, {}>>”上不存在属性“$RedirectUrl”

Answer 1

getCurrentInstance 只有组件在 setup 运行阶段才会填充组件实例。