nw-cqdevicemgt-ui/src/utils/request.js

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/ruoyi'
import cache from '@/plugins/cache'
import { saveAs } from 'file-saver'

let downloadLoadingInstance
// 是否显示重新登录
export let isRelogin = { show: false }

axios.defaults.headers['Content-Type'] = 'application/json;charset=utf-8'
// 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: 10000,
})

// 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 (
            !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 requestSize = Object.keys(JSON.stringify(requestObj)).length // 请求数据大小
            const limitSize = 5 * 1024 * 1024 // 限制存放数据5M
            if (requestSize >= limitSize) {
                console.warn(
                    `[${config.url}]: ` +
                        '请求数据大小超出允许的5M限制，无法进行防重复提交验证。',
                )
                return config
            }
            const sessionObj = cache.session.getJSON('sessionObj')
            if (
                sessionObj === undefined ||
                sessionObj === null ||
                sessionObj === ''
            ) {
                cache.session.setJSON('sessionObj', requestObj)
            } else {
                const s_url = sessionObj.url // 请求地址
                const s_data = sessionObj.data // 请求数据
                const s_time = sessionObj.time // 请求时间
                const interval = 1000 // 间隔时间(ms)，小于此时间视为重复提交
                if (
                    s_data === requestObj.data &&
                    requestObj.time - s_time < interval &&
                    s_url === requestObj.url
                ) {
                    const message = '数据正在处理，请勿重复提交'
                    console.warn(`[${s_url}]: ` + message)
                    return Promise.reject(new Error(message))
                } else {
                    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 = '/login';
                            // location.href = '/gl/login';

                            location.href =
                                process.env.VUE_APP_ENV === 'production-nw'
                                    ? '/gl/login'
                                    : '/login'
                        })
                    })
                    .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.closeAll()
            Message({ message: msg, type: 'error' })
            return Promise.reject(new Error(msg))
        } else if (code === 601) {
            Message.closeAll()
            Message({ message: msg, type: 'warning' })
            return Promise.reject('error')
        } else if (code !== 200) {
            Notification.closeAll()
            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.closeAll()
        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()
        })
}

// 通用下载方法
export function downloadJson(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 params
                },
            ],
            headers: { 'Content-Type': 'application/json' },
            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