ybxf-security-uniapp/utils/request.js

import store from '@/store'
import config from '@/config'
import {
	getAccessToken,
	getRefreshToken,
	setToken,
	getExpiresTime
} from '@/utils/auth'
import {
	refreshToken
} from '@/api/login'
import errorCode from '@/utils/errorCode'
import {
	toast,
	showConfirm,
	tansParams
} from '@/utils/common'

let timeout = 10000
const baseUrl = config.baseUrl + config.baseApi;
// 请求队列
let requests = []
// 是否正在刷新中
let isRefreshing = false
const request = async (config) => {
	// 是否需要设置 token
	const isToken = (config.headers || {}).isToken === false
	config.header = config.header || {}
	var hastoken = getAccessToken()
	if (hastoken != null && !isToken) {
		config.header['Authorization'] = 'Bearer ' + hastoken
	}
	// 设置租户 TODO 芋艿：强制 1 先
	config.header['tenant-id'] = '1';
	// get请求映射params参数
	if (config.params) {
		let url = config.url + '?' + tansParams(config.params)
		url = url.slice(0, -1)
		config.url = url
	}
	return new Promise((resolve, reject) => {
		uni.request({
				method: config.method || 'get',
				timeout: config.timeout || timeout,
				url: config.baseUrl || baseUrl + config.url,
				data: config.data,
				// header: config.header,
				header: config.header,
				dataType: 'json'
			}).then(async response => {
				let [error, res] = response
				if (error) {
					toast('后端接口连接异常')
					reject('后端接口连接异常')
					return
				}
				const code = res.data.code || 200
				const msg = errorCode[code] || res.data.msg || errorCode['default']
				if (code === 401) {
					//token无效或已过期
					if (!isRefreshing) {
						// 是否已经执行刷新
						isRefreshing = true
						let token = getAccessToken(); // 获取到过期的token
						try {
							refreshToken({
								refreshToken: getRefreshToken() // 刷新token的令牌存在token的对象里面，需要传给后端
							}).then(reshRespore=>{
								console.log(reshRespore, 'reshResporereshResporereshRespore');
								// 请求成功把新的token存到本地
								setToken(reshRespore.data);
								// 已经刷新了token，将所有队列中的请求进行重试
								requests.forEach((item) => item(reshRespore.data.accessToken))
								requests = []
								// 每个接口请求都要存入队列，等刷新完以后都需要执行
								return new Promise((resolve) => {
									// 将resolve放进队列，用一个函数形式来保存，等token刷新后直接执行
									requests.push((token) => {
										//这一步一定要有，刷新token，因为存入的信息是旧的token
										response.config.header['Authorization'] =
											'Bearer ' +
											token;
										resolve(uni.$u.http.request(response
											.config)) //执行请求
									})
								})
							})
							
						} catch {
							uni.$u.toast('未知错误')
							showConfirm('登录状态已过期，您可以继续留在该页面，或者重新登录?').then(res => {
								if (res.confirm) {
									uni.navigateTo({
										url: '/pages/login'
									})
								}
							});
						} finally {
							// 请求成功，开启刷新标识
							isRefreshing = false
						}
					} else {
					
					}
				} else if (code === 500) {
					toast(msg)
					reject('500')
				} else if (code !== 200) {
					toast(msg)
					reject(code)
				}
				resolve(res.data)
			})
			.catch(error => {
				let {
					message
				} = error
				if (message === 'Network Error') {
					message = '后端接口连接异常'
				} else if (message.includes('timeout')) {
					message = '系统接口请求超时'
				} else if (message.includes('Request failed with status code')) {
					message = '系统接口' + message.substr(message.length - 3) + '异常'
				}
				toast(message)
				reject(error)
			})
	})
}

export default request