版本号

"vue": "^3.2.45",

 "axios": "^1.4.0",

 "axios-miniprogram-adapter": "^0.3.5",

安装axios及axios适配器，适配小程序

yarn add axios axios-miniprogram-adapter

使用axios

在utils创建utils/request.ts文件

import axios from "axios"
import type { AxiosAdapter, AxiosInstance, AxiosPromise, AxiosRequestConfig, AxiosResponse } from "axios";
import mpAdapter from "axios-miniprogram-adapter";
axios.defaults.adapter = mpAdapter as any

interface Result<T = any> {
  code: number | string;
  msg: string;
  data: T;
};

/* declare module 'axios' {
  //如遇到request()方法里的retuen报类型错误，放开这段注释采用这种形式定义返回类型,将上方的Result接口注释
  interface AxiosResponse<T = any> {
    code: number | string;
    msg: string;
    data: T;
  }
  type Result<T = any> = AxiosResponse<T>;
} */

// 导出Request类，可以用来自定义传递配置来创建实例
class HttpRequest {
  baseURL: string;
  timeout: number;

  constructor() {
    this.baseURL = import.meta.env.VITE_BASE_URL;
    this.timeout = 60000
  }

  request<T = any>(options: AxiosRequestConfig): Promise<Result<T>> {
    // axios 实例
    const instance: AxiosInstance = axios.create()
    this.setInterceptors(instance)
    const opts = this.mergeOptions(options)
    return instance(opts)
  }

  get<T = any>(url: string, data?: any, outHeaders = {}): Promise<Result<T>> {
    return this.request<T>({
      method: 'get',
      url,
      params: { ...data }, // get参数可以直接展开
      headers: {}
    })
  }

  post<T = any>(url: string, body = {}, outHeaders = {}): Promise<Result<T>> {
    let data = {
      body,
      header: {}
    }
    return this.request<T>({
      method: 'post',
      url,
      data, // post要求必须传入data属性
    })
  }
  mergeOptions(options: AxiosRequestConfig) {
    //console.log('合并参数', options)
    return {
      baseURL: this.baseURL,
      timeout: this.timeout,
      ...options
    }
  }
  // 设置拦截器
  setInterceptors(instance: AxiosInstance) {
    // 请求拦截器
    instance.interceptors.request.use((config) => {
      uni.showLoading({
        title: '加载中...',
        mask: true
      });

      // 一般会请求拦截里面加token，用于后端的验证
      /*       const token = localStorage.getItem("token")
            config!.headers!.Authorization = token
            config.headers = Object.assign(config.headers, { ...config.headers, token }); */

      return config
    },
      (err: any) => {
        console.log(err, '请求拦截报错');
        uni.hideLoading();
        return Promise.reject(err);
      })

    // 响应拦截器
    instance.interceptors.response.use(
      (res: AxiosResponse) => {
        //res为AxiosResponse类型，含有config\data\headers\request\status\statusText属性
        console.log(res);
        uni.hideLoading();
        let { status, data } = res
        if (status === 200) {
          // return Promise.resolve(data)
          return data
        } else {

        }

      },
      err => {
        console.log('axios报错', err)
        uni.hideLoading(); // 立即关闭加载框
        return Promise.reject(err)
      }
    )
  }
}
// 默认导出Request实例
export default new HttpRequest()

在src目录下创建src/api/config文件夹

config文件夹中创建home.ts文件，首页的接口都放在里面统一管理

export default {
  getHomeData: "/frontpage",
}

 和config文件夹同级创建home.ts文件，统一管理请求接口的方法

import axios from '@/utils/request'
import home from './config/home'

export const getHomeData = () => axios.get(home.getHomeData) //无参使用方式
export const getHomeData = options:any => axios.get(home.getHomeData, options) //有参使用方式 options参数可以自行统一定义

在页面中使用，home.vue文件

<template>
	<view class="content">
	</view>
</template>

<script setup lang="ts">
import { onMounted, ref } from 'vue'
import { getHomeData } from '@/api/home'


onMounted(() => {
	homeData()
})

const homeData = async () => {
	const { data } = await getHomeData()
	console.log(data, '首页数据+++++++++')
}
</script>

<style lang="scss"></style>