request.js
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// 统一请求层:封装 baseUrl、自动带 token、解析后端 RESTful 响应、401 处理
import { BASE_URL, REQUEST_TIMEOUT, TOKEN_KEY, MEMBER_KEY, LOGIN_PAGE } from '@/utils/config'
// token 失效对应的业务码(沿用管理端约定)
const TOKEN_INVALID_CODES = [401, 600, 601, 602]
let redirecting = false
function clearAuthStorage() {
uni.removeStorageSync(TOKEN_KEY)
uni.removeStorageSync(MEMBER_KEY)
}
function redirectToLogin() {
clearAuthStorage()
if (redirecting) return
redirecting = true
uni.reLaunch({
url: LOGIN_PAGE,
complete: () => {
setTimeout(() => {
redirecting = false
}, 800)
}
})
}
function toast(message) {
uni.showToast({
title: message || '请求出错,请重试',
icon: 'none'
})
}
/**
* 发起请求
* @param {Object} options
* @param {String} options.url 接口路径(含 api/ 前缀)
* @param {String} options.method GET/POST/PUT/DELETE
* @param {Object} options.data 参数(GET 也放 data,会作为 query)
* @param {Object} options.header 自定义请求头
* @param {Boolean} options.auth 是否需要携带 token(默认 true)
* @param {Boolean} options.loading 是否显示 loading(默认 false)
* @param {Boolean} options.silent 出错时是否静默(不弹 toast,默认 false)
* @returns {Promise<any>} resolve 后端 data 字段
*/
export default function request(options = {}) {
const {
url,
method = 'GET',
data = {},
header = {},
auth = true,
loading = false,
silent = false
} = options
return new Promise((resolve, reject) => {
if (loading) {
uni.showLoading({ title: '加载中', mask: true })
}
const finalHeader = { 'content-type': 'application/json', ...header }
const token = uni.getStorageSync(TOKEN_KEY)
if (auth && token) {
// token 存储时已含 "Bearer ",做一次兜底
finalHeader['Authorization'] = String(token).indexOf('Bearer') === 0 ? token : ('Bearer ' + token)
}
uni.request({
url: BASE_URL + url,
method: String(method).toUpperCase(),
data,
header: finalHeader,
timeout: REQUEST_TIMEOUT,
success: (res) => {
const statusCode = res.statusCode
const body = res.data || {}
// HTTP 401 未授权
if (statusCode === 401) {
redirectToLogin()
reject(new Error('未登录或登录已过期'))
return
}
// 非 2xx
if (statusCode < 200 || statusCode >= 300) {
const msg = body && body.msg ? body.msg : `请求失败(${statusCode})`
if (!silent) toast(msg)
reject(new Error(msg))
return
}
// 后端 RESTful 响应:{ code, msg, data }
const code = body.code
if (code === undefined || code === null) {
// 无标准包裹(极少数接口),直接返回原始 body
resolve(body)
return
}
if (code === 200) {
resolve(body.data !== undefined ? body.data : null)
return
}
if (TOKEN_INVALID_CODES.indexOf(code) > -1) {
redirectToLogin()
reject(new Error(body.msg || '登录已过期'))
return
}
if (!silent) toast(body.msg)
reject(new Error(body.msg || '请求出错'))
},
fail: (err) => {
if (!silent) toast('网络异常,请稍后重试')
reject(err)
},
complete: () => {
if (loading) uni.hideLoading()
}
})
})
}