eln_web/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'
import i18n from '@/lang'

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: 90000
})

// 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) {
      store.dispatch('LogOut').then(() => {
        // location.href = '/user/work'
      })
      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 = '/user/work'
        //     })
        //   })
        //   .catch(() => {
        //     isRelogin.show = false
        //   })

        MessageBox.prompt(
          i18n.t('system.timeOutContent'),
          i18n.t('system.tip'),
          {
            confirmButtonText: i18n.t('system.timeOutEnter'),
            cancelButtonText: i18n.t('form.cancel'),
            inputPattern: /^\S+$/,
            inputType: 'password',
            inputPlaceholder: i18n.t('login.password'),
            inputErrorMessage: i18n.t('login.password'),
            showClose: false,
            closeOnPressEscape: false,
            closeOnClickModal: false,
            beforeClose: (action, instance, done) => {
              if (action === 'confirm') {
                let password = instance.inputValue
                store
                  .dispatch('Login', {
                    username: store.getters.name,
                    password: password,
                    force: false
                  })
                  .then(() => {
                    console.log('重新登录成功')
                    isRelogin.show = false
                    done()
                  })
                  .catch((err) => {
                    if (err && err.message === 'exists') {
                      isRelogin.show = false
                      done()
                      setTimeout(() => {
                        MessageBox.confirm(
                          i18n.t('system.crowdOut'),
                          i18n.t('system.tip'),
                          {
                            confirmButtonText: i18n.t('form.confirm'),
                            cancelButtonText: i18n.t('form.cancel'),
                            type: 'warning',
                            showClose: false,
                            closeOnPressEscape: false,
                            closeOnClickModal: false
                          }
                        )
                          .then(() => {
                            store
                              .dispatch('Login', {
                                username: store.getters.name,
                                password: password,
                                force: true
                              })
                              .then(() => {
                                console.log('重新登录成功')
                              })
                              .catch((err) => {
                                console.log(
                                  '重新登录失败' + JSON.stringify(err)
                                )
                                return false
                              })
                          })
                          .catch(() => {
                            // if (this.captchaEnabled) {
                            //   this.getCode()
                            // }
                            location.href = '/user/work'
                          })
                      }, 0)
                    } else {
                      // if (this.captchaEnabled) {
                      //   this.getCode()
                      // }
                      return false
                    }
                  })
              } else {
                done()
                isRelogin.show = false
                location.href = '/user/work'
              }
            }
          }
        )
          .then(({ value }) => {
            isRelogin.show = false
          })
          .catch(() => {
            isRelogin.show = false
            location.href = '/user/work'
          })
      }
      return Promise.reject(i18n.t('system.timeOutTip'))
    } else if (code === 500) {
      if (msg !== 'exists') {
        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)
  }
)

export function login(username, password, force) {
  store
    .dispatch('Login', { username: username, password: password, force: force })
    .then(() => {
      console.log('重新登录成功')
    })
    .catch((err) => {
      if (err && err.message === 'exists') {
        MessageBox.confirm(i18n.t('system.crowdOut'), i18n.t('system.tip'), {
          confirmButtonText: i18n.t('form.confirm'),
          cancelButtonText: i18n.t('form.cancel'),
          type: 'warning'
        })
          .then(() => {
            login(username, password, true)
          })
          .catch(() => {
            // if (this.captchaEnabled) {
            //   this.getCode()
            // }
          })
      } else {
        // if (this.captchaEnabled) {
        //   this.getCode()
        // }
      }
    })
}

// 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