import axios from 'axios' import { Notification, MessageBox, Message, Loading } from 'element-ui' import store from '@/store' import { getToken } from '@/utils/auth' import errorCode from '@/utils/errorCode' import { tansParams, blobValidate } from '@/utils/tools' import cache from '@/plugins/cache' import { saveAs } from 'file-saver' let downloadLoadingInstance // 是否显示重新登录 export const isRelogin = { show: false } axios.defaults.headers['Content-Type'] = 'application/json;charset=utf-8' // 对应国际化资源文件后缀 axios.defaults.headers['Content-Language'] = 'zh_CN' // 创建axios实例 const service = axios.create({ // axios中请求配置有baseURL选项,表示请求URL公共部分 baseURL: process.env.VUE_APP_BASE_API, // 超时 timeout: 500000 }) // request拦截器 service.interceptors.request.use( (config) => { // 是否需要设置 token const isToken = (config.headers || {}).isToken === false // 是否需要防止数据重复提交 const isRepeatSubmit = (config.headers || {}).repeatSubmit === false if (getToken() && !isToken) { config.headers['Authorization'] = 'Bearer ' + getToken() // 让每个请求携带自定义token 请根据实际情况自行修改 } // get请求映射params参数 if (config.method === 'get' && config.params) { let url = config.url + '?' + tansParams(config.params) url = url.slice(0, -1) config.params = {} config.url = url if (config.url.indexOf('login') == -1) { store.dispatch('getMessage') } } if ( !isRepeatSubmit && (config.method === 'post' || config.method === 'put') ) { const requestObj = { url: config.url, data: typeof config.data === 'object' ? JSON.stringify(config.data) : config.data, time: new Date().getTime() } const sessionObj = cache.session.getJSON('sessionObj') if ( sessionObj === undefined || sessionObj === null || sessionObj === '' ) { cache.session.setJSON('sessionObj', requestObj) } else { const s_url = sessionObj.url // 请求地址 const s_data = sessionObj.data // 请求数据 const s_time = sessionObj.time // 请求时间 const interval = 1000 // 间隔时间(ms),小于此时间视为重复提交 if ( s_data === requestObj.data && requestObj.time - s_time < interval && s_url === requestObj.url ) { const message = '数据正在处理,请勿重复提交' console.warn(`[${s_url}]: ` + message) return Promise.reject(new Error(message)) } else { if (config.url.indexOf('login') == -1) { store.dispatch('getMessage') } cache.session.setJSON('sessionObj', requestObj) } } } return config }, (error) => { console.log(error) Promise.reject(error) } ) // 响应拦截器 service.interceptors.response.use( (res) => { // 未设置状态码则默认成功状态 const code = res.data.code || 200 // 获取错误信息 const msg = errorCode[code] || res.data.msg || errorCode['default'] // 二进制数据则直接返回 if ( res.request.responseType === 'blob' || res.request.responseType === 'arraybuffer' ) { return res.data } if (code === 401) { if (!isRelogin.show) { isRelogin.show = true MessageBox.confirm( '登录状态已过期,您可以继续留在该页面,或者重新登录', '系统提示', { confirmButtonText: '重新登录', cancelButtonText: '取消', type: 'warning' } ) .then(() => { isRelogin.show = false store.dispatch('LogOut').then(() => { location.href = process.env.VUE_APP_CONTEXT_PATH + 'index' }) }) .catch(() => { isRelogin.show = false }) } return Promise.reject('无效的会话,或者会话已过期,请重新登录。') } else if (code === 500) { Message({ message: msg, type: 'error' }) return Promise.reject(new Error(msg)) } else if (code === 601) { Message({ message: msg, type: 'warning' }) return Promise.reject('error') } else if (code !== 200) { Notification.error({ title: msg }) return Promise.reject('error') } else { return res.data } }, (error) => { console.log('err' + 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' } Message({ message: message, type: 'error', duration: 5 * 1000 }) return Promise.reject(error) } ) // 通用下载方法 export function download(url, params, filename, config) { downloadLoadingInstance = Loading.service({ text: '正在下载数据,请稍候', spinner: 'el-icon-loading', background: 'rgba(0, 0, 0, 0.7)' }) return service .post(url, params, { transformRequest: [ (params) => { return tansParams(params) } ], headers: { 'Content-Type': 'application/x-www-form-urlencoded' }, responseType: 'blob', ...config }) .then(async(data) => { const isBlob = blobValidate(data) if (isBlob) { const blob = new Blob([data]) saveAs(blob, filename) } else { const resText = await data.text() const rspObj = JSON.parse(resText) const errMsg = errorCode[rspObj.code] || rspObj.msg || errorCode['default'] Message.error(errMsg) } downloadLoadingInstance.close() }) .catch((r) => { console.error(r) Message.error('下载文件出现错误,请联系管理员!') downloadLoadingInstance.close() }) } export default service