第一个版本和第二个版本,感觉还行啊

第一个版本 

vue+vant 

import axios from 'axios'
import { Toast } from 'vant';

import store from '@/store/index.js'
import router from '@/router'
import {
  getToken
} from '@/libs/util'

const instance = axios.create({
  timeout: 105000,
  headers: {
    'Content-Type': 'application/json; charset=utf-8'
  }
})

/**
 * 请求拦截
 */
instance.interceptors.request.use(async config => {
  if (getToken()) {
    // 如果是CAS平台
    // 在请求头部增加 切换的租户 字段(User-Information)发给后台
    config.headers.Authorization = getToken()
    // request.headers['Tenant_id'] = getCurrentTenantId()
    config.headers['Tenant-ID'] = localStorage.getItem('tenantId')
    if (config.url.indexOf('login') === -1 && config.url.indexOf('refreshToken') === -1 && config.url.indexOf('selectUnReadMessage') === -1) {
      await store.dispatch('refreshToken')
    }
  }
  return config
}, error => {
  return Promise.reject(error)
})

/**
 * 响应拦截
 */
instance.interceptors.response.use(response => {
  if ((response.data.code === 'E0B00001' && response.data.data === 'E0B00002') || response.data.code == 401) {
    //Toast(response.data.msg);
    return router.replace({
      name: 'transfer',
    })
  }
  return Promise.resolve(response)
}, error => {
  if (error.response.status === 500 || error.response.status === 502) {
    Toast(error.response.data.msg);
  } else if (error.response.status == 401) {
    //token失效
    Toast(error.response.data.msg);
    router.replace({
      name: 'transfer',
    })
  } else if (error.response.status === 404) {
    Toast('请求接口不存在' + error.response.status);
  } else {
    Toast(error.response.status);
  }
  return Promise.reject(error)

})
const http = {
  get: (path, data, config) =>
    instance.get(path, {
      params: data,
      ...config
    }),
  post: (path, data, config) => instance.post(path, data, config),
  put: (path, data, config) => instance.put(path, data, config),
  delete: (path, data, config) =>
    instance.delete(path, {
      data,
      ...config
    })
}
export default http

第二个版本 

vue+element-ui 

/*
 * @Author: 梁观晖
 * @Date: 2019-07-12 13:39:15
 * @LastEditors: MoMaek 杨兴
 * @LastEditTime: 2021-01-15 16:14:40
 * @Description: no description
 */
import axios from 'axios'
import router from '@/router'

import {
  getToken
} from '@/libs/util'
// 2021年6月22日:统一ui框架为elementUI
import {
  Message,
  Loading
} from 'element-ui';

import store from '@/store/index.js'
// import { mapActions, mapState } from 'vuex'
const instance = axios.create({
  // baseURL: baseUrl,
  timeout: 105000,
  // withCredentials: true,
  headers: {
    'Content-Type': 'application/json; charset=utf-8'
  }
})

let loadingInstance = null; // 记录页面中存在的loading
let loadingCount = 0; // 记录当前正在请求的数量

function showLoading(data) {
  if (loadingCount === 0) {
    loadingInstance = Loading.service({
      lock: true,
      text: data || '加载中……'
    });
  }
  loadingCount++
};

function hideLoading() {
  loadingCount--
  if (loadingInstance && loadingCount === 0) {
    loadingInstance.close()
    loadingInstance = null
  }
}

// 这里的response包含每次请求的内容
instance.interceptors.request.use(
  async request => {
    if (!request.loadingHide) {
      showLoading(request.loadingText)
    }
    // 全局给header添加token
    if (getToken()) {
      // 如果是CAS平台
      // 在请求头部增加 切换的租户 字段(User-Information)发给后台
      request.headers.Authorization = getToken()
      // request.headers['Tenant_id'] = getCurrentTenantId()
      request.headers['Tenant-ID'] = localStorage.getItem('tenantId')
      if (request.url.indexOf('login') === -1 && request.url.indexOf('refreshToken') === -1 && request.url.indexOf('selectUnReadMessage') === -1) {
        await store.dispatch('refreshToken')
      }
    }
    return request
  },
  error => {
    return Promise.reject(error)
  }
)

// 拦截器
instance.interceptors.response.use(
  (response) => {
    if (!response.config.loadingHide) {
      hideLoading()
    }

    // paas token失效
    // || response.data.code == 401
    if (response.data.code === 'E0B00001' && response.data.data === 'E0B00002') {
      Message({
        message: response.data.msg,
        type: 'warning'
      });
      let timer = setTimeout(() => {
        router.replace({
          name: 'login',
          params: {
            clear: true
          }
        })
        clearTimeout(timer)
      }, 1000)
      return
    }
    return response
  },
  (error) => {
    if (!error.config.loadingHide) {
      hideLoading()
    }
    if (error.response.status === 500 || error.response.status === 502) {
      Message({
        message: error.response.data.msg,
        type: 'warning'
      });
    } else if (error.response.status === 404) {
      Message({
        message: '请求接口不存在' + error.response.status,
        type: 'error'
      });
    } else if (error.response.status === 401) {
      Message({
        message: 'token失效,请重新登陆',
        type: 'warning'
      });
      router.replace({
        name: 'login',
        params: {
          clear: true
        }

      })
    } else {
      Message({
        message: error.response.status,
        type: 'warning'
      });
    }

    return Promise.reject(error)
  }
)

const http = {
  get: (path, data, config) =>
    instance.get(path, {
      params: data,
      ...config
    }),
  post: (path, data, config) => instance.post(path, data, config),
  put: (path, data, config) => instance.put(path, data, config),
  delete: (path, data, config) =>
    instance.delete(path, {
      data,
      ...config
    })
}
export default http

第一个版本和第二个版本的使用,都是一样的,如下: 

 使用

①main.js中引用

//main.js
import http from "@/libs/request";

Vue.prototype.$http = http;

②vue文件中使用

<template>
  <div id="app">
    <router-view></router-view>
  </div>
</template>

<script>
export default {
  name: 'app',
  components: {

  },
  created() {
    this.$http.post("/cmdb-base/instanceAsst/findAllInstanceAsstListApp", this.dataForm).then(({ data: res }) => {
      if (res.code != "S1A00000") {
        this.groupList = []
        return this.$toast.fail(res.msg)
      }
      this.groupList = res.data || []
    }).finally(() => {
      this.dataLoading = false
    })
  }

}
</script>

<style>

</style>

 ③ 其他js中的使用,比如vuex的store.js

import Vue from 'vue'
import Vuex from 'vuex'
import HTTP from '@/libs/request'
import sysConfig from './module/sysConfig'
import {
  setToken
} from '@/libs/util'
Vue.use(Vuex)

export default new Vuex.Store({
  state: {

  },
  getters: {

  },
  mutations: {

  },
  actions: {
    
    handleNewLogin({
      state,
      commit
    }, {
      type,
      appSessionKey,
      account,
      pwd,
      userType

    }) {
      return new Promise((resolve) => {
        let url = ""
        let method = ""
        let params = null
        if (type === 'local') {
          url = '/cmdb-rbac/v1/sysLogin/login'
          method = 'post'
          params = {
            account: account.trim(),
            pwd: pwd,
            userType
          }
        } else {
          url = '/base-auth/oauth/login'
          method = 'get'
          params = {
            [state.sysConfig.sso.appSessionKey]: appSessionKey,
            // [state.sysConfig.sso.redirectKey]: state.sysConfig.sso.redirectValue
          }
        }
       
        HTTP[method](url, params).then(({ data: res }) => {
          if (res.code !== 'S1A00000') {
            resolve(res)
            return
          }
          setToken(res.data.token)
          localStorage.setItem('tenantId', res.data.userInfo.user.tenantId)
          localStorage.setItem('expireTime', res.data.expireTime)
          resolve(res)
        })
          .catch((err) => {
            resolve({
              code: 'E0B00001',
              'msg': err.message
            })
          }).finally(() => {
          })
      })
    },
  
  },
  modules: {
    sysConfig
  }
  // plugins: [persistedState()]
})

第三个版本


import axios from 'axios'
import { message } from 'ant-design-vue'
import Cookie from 'js-cookie'

let isFormData = (v) => {
  return Object.prototype.toString.call(v) === '[object FormData]';
}
axios.defaults.timeout = 10000
// axios.defaults.withCredentials = true
axios.defaults.crossDomain = true
let sessions = {}
//http request 拦截器
axios.interceptors.request.use(
  config => {
    if (!isFormData(config.data)) {
      config.data = JSON.stringify(config.data)
    }
    const jwt = Cookie.get('jwt');
    const sessions = Cookie.get('sessions') ? JSON.parse(Cookie.get('sessions')) : {}
    // 判断是否是登录请求
    // true
    if (config.url.indexOf('admin-user/login') > -1) {
      config.headers = {
        'Content-Type': 'application/json;charset=UTF-8',
      }
    } else {
      // false
      // 判断是否有登录token
      if (jwt) {
        if (isFormData(config.data)) {
          config.headers = {
            "Content-Type": "multipart/form-data",
            'Authorization': jwt,
            ...sessions
          }
        } else {
          config.headers = {
            'Content-Type': 'application/json;charset=UTF-8',
            'Authorization': jwt,
            ...sessions
          }
        }

      } else {
        if (isFormData(config.data)) {
          config.headers = {
            "Content-Type": "multipart/form-data",
            ...sessions
          }
        } else {
          config.headers = {
            'Content-Type': 'application/json;charset=UTF-8',
            ...sessions
          }
        }

      }
    }
    return config;
  },
  error => {
    return Promise.reject(error);
  }
)
//http response 拦截器
axios.interceptors.response.use(
  response => {
    // console.log('success',response)
    response.headers.Authorization && Cookie.set('jwt', 'Bearer ' + response.headers.Authorization, { expires: 7 })
    return response;
  },
  err => {
    console.log('fail', err.response)
    console.log('fail', err)
    if (err && err.response) {
      switch (err.response.status) {
        case 400:
          err.message = '请求错误'
          break

        case 401:
          break
        case 403:
          err.message = '登录过期,请重新登录'
          break
        case 404:
          err.message = '网络请求不存在'
          break
        case 408:
          break
        case 500:
          err.message = '请求错误'
          break
        case 501:
          err.message = '服务未实现'
          break

        case 502:
          err.message = '网关错误'
          break

        case 503:
          err.message = '服务不可用'
          break

        case 504:
          err.message = '网关超时'
          break

        case 505:
          err.message = 'HTTP版本不受支持'
          break

        default:
      }
    } else {
      err.message = '网络出现问题,请稍后再试'
    }
    message.error(err.message);
    return Promise.reject(err)
  }
)



/**
 * get请求
 * @param url
 * @param params
 * @returns {Promise}
 */

export function get(url, params = {}) {
  sessions = Cookie.get('sessions') ? JSON.parse(Cookie.get('sessions')) : {}
  return new Promise((resolve, reject) => {
    axios.get(Util.baseUrl + url, {
      params: params
    })
      .then(response => {
        // 请求成功
        resolve(response.data)
      })
      .catch(err => {
        reject(err)
      })
  })
}

/**
 * post请求
 * @param url
 * @param data
 * @returns {Promise}
 */

export function post(url, data = {}) {
  return new Promise((resolve, reject) => {
    axios.post(Util.baseUrl + url, data)
      .then(response => {
        // 请求成功
        resolve(response.data)
      })
      .catch(err => {
        reject(err)
      })
  })
}
/**
 * post请求 params
 * @param url
 * @param data
 * @returns {Promise}
 */

export function postParams(url, params = {}, data = {}) {
  return new Promise((resolve, reject) => {
    axios({
      method: 'post',
      url: Util.baseUrl + url,
      params: params,
      body: data
    })
      .then(response => {
        console.log(response)
        // 请求成功
        resolve(response.data)
      })
      .catch(err => {
        reject(err)
      })
  })
}
/**
 * 文件上传 uploadFile(使用post请求)
 * @param url
 * @param data
 * @returns {Promise}
 * @param 不需要传passportId
 *
 *$$$$$$参数module取值参考如下$$$$$$$$$

 *运营中心服务【租户、秘钥】  【20010】
  'spm-operation'

 *统一组织机构服务[组织、部门等] 【20020】
  'spm-org-structure'

 *权限管理服务[资源菜单、角色、用户等] 【20030】
  'spm-admin'

 *账号信息服务[统一账号、账户管理] 【20040】
 'spm-passport'

 *统一鉴权中心服务[Token管理、认证、刷新] 【20050】
 'spm-auth-server'

 *应用中心服务[应用注册] 【20060】
 'spm-app-center'

 *第三方服务【提供短信、消息推送】 【20070】
  'spm-third-party'

 *系统服务(基础数据、版本、服务等) 【20080】
  'spm-system'

 *文件服务[文件/图片上传下载/处理等功能] 【20090】
  'spm-file-upload'

 *即时通讯信息服务[im管理] 【20100】
  'spm-im'

 *日志监控服务logstash  【20110】
  'spm-logstash'
 */
export function uploadFile(data = {}) {
  return new Promise((resolve, reject) => {
    //固定参数
    const fixedParams = {
      appId: 'spm',
      appName: 'spm',
    }
    //合并参数
    let params = { ...fixedParams, ...data }
    //创建formData 并赋值
    let formData = new FormData();
    for (let key in params) {
      formData.append(key, params[key])
    }
    //请求后台
    axios({
      method: 'post',
      url: 'http://39.105.163.75:20090/V1.0.0/api/file/upload',
      data: formData,
    })
      .then(response => {
        // 请求成功
        resolve(response.data)
      })
      .catch(err => {
        reject(err)
      })
  })
}

export function uploadImg(data = {}) {
  return new Promise((resolve, reject) => {

    //请求后台
    axios({
      method: 'post',
      url: 'http://39.105.163.75:20090/V1.0.0/api/file/upload',
      data: data,
    })
      .then(response => {
        // 请求成功
        resolve(response.data)
      })
      .catch(err => {
        reject(err)
      })
  })
}
export function exportFile(url, data = {}) {
  return new Promise((resolve, reject) => {
    axios({
      method: "post",
      url: Util.baseUrl + url,
      data: data,
      responseType: 'arraybuffer'
    })
      .then(response => {
        // 请求成功
        resolve(response.data)
      })
      .catch(err => {
        reject(err)
      })
  })
}

/**
 * 并发请求
 * @param requestLists
 * @returns {Promise<any>}
 */
export function getAll(requestLists = []) {
  let counter = 1 // 请求次数
  let maxRequestTimes = 5 // 最大请求次数,因为有可能别个页面就是访问不了,请求多少次也没用- -
  let result = [] // 最后的结果
  let failedList = []
  return new Promise((resolve, reject) => {
    axios.all(requestLists)
      .then(response => {
        result = result.concat(response.filter(i => i)) // filter返回true的时候保留该数组项,因为getDataById的catch里没有给返回值(这里也不需要),这里的resolve里就会有undefined,需要过滤掉
        let failedLength = failedList.length
        if (failedLength > 0 && counter < maxRequestTimes) { // 如果失败列表里有请求,并且请求次数不超过设定的值,就进行下一次请求,并且打出log
          console.log(`第${counter}次请求完成,其中成功${requestLists.length - failedLength}个,失败${failedLength}个,正在进行第${++counter}次请求...`)
          getAll(failedList)
          failedList = [] // 这里要清空failedList,不然会一直调用。不用担心,下一次请求失败的会在getAll填充到failedList里。
        } else { // 表示所有请求都成功了,或者达到了最大请求次数。到这里就可以对result做进一步处理了。
          console.log(`请求完成,共请求${counter}次, 其中成功${requestLists.length - failedLength}个,失败${failedLength}个\n`, result)
          counter = 1
          resolve(response)
        }
      })
      .catch(err => {
        reject(err)
      })
  })
}

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