// 封装一个http 办法let temp_request = [], is_freshing = false;/** * @param {string} url * @param {string} method * @param {Object} data * @param {Boolean} loading */const http = function(url, method, data, loading) { let params_ = arguments return new Promise((resolve, reject) => { if(loading) { uni.showToast({ title: '加载中', icon: 'loading', duration: 10000, // mask: true }) } data.token = uni.getStorageSync('api_token') uni.request({ url: url, method, data, success(res) { if(loading){ uni.hideToast({ title: '加载中', icon: 'loading', duration: 10000, }) } let code = res.data.code switch (code) { case 0: resolve(res.data.data);break; case 200: // other handlers break case 401: // token 过期 if(!is_freshing) { refresh() } // 关键步骤~~~~ resolve(new Promise(reslove => { temp_request.push(() => { reslove(request(...params_)) }) })) break; default: reject(res.data.data) } }, fail(error) { reject(error.data.data) }, complete(res) { } }) })}function refresh() { is_freshing = true // 这里用的uni-app 获取微信code， 原生微信小程序 wx.login() uni.login({ provider: 'weixin', success: function (loginRes) { http('/mob/auth/login/miniProgram', 'post', {code}, true) .then((res) => { uni.setStorageSync('api_token', res.token) is_freshing = false temp_request.map(cb => cb()) // 清空temp_request temp_request = [] }) .catch((res) => { uni.hideLoading(); }) } }); }, 1500)}export default http// 测试onShow() { // 在token过期的状况下，派发三个须要token的申请 http({url1, 'get'}) .then((res) => { console.log(res) }) http({url1, 'get'}) .then((res) => { console.log(res) }) http({url1, 'get'}) .then((res) => { console.log(res) })}