erp_ehsd/src/utils/request.js

import axios from 'axios'
import {
  ElNotification,
  ElMessageBox,
  ElMessage,
  ElLoading
} from 'element-plus'
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 useUserStore from '@/store/modules/user'

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: import.meta.env.VITE_APP_BASE_API,
  // 超时
  timeout: 100000
})

// 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 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 = 500; // 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)
        console.log(s_url, '重复提交的url');
        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;
        ElMessageBox.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;
          useUserStore().logOut().then(() => {
            location.href = '/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) {
      ElMessage({
        message: msg,
        type: 'error'
      })
      return Promise.reject(new Error(msg))
    } else if (code === 601) {
      ElMessage({
        message: msg,
        type: 'warning'
      })
      return Promise.reject(new Error(msg))
    } else if (code !== 200) {
      ElNotification.error({
        title: msg
      })
      return Promise.reject('error')
    } else {

      return Promise.resolve(res.data)
    }
  },
  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";
    } else if (message.includes("java.lang.NoClassDefFoundError")) {
      message = '服务器部署中，请稍后再试'
    }

    ElMessage({
      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 = ElLoading.service({
    text: "正在下载数据，请稍候",
    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 isLogin = await blobValidate(data);
    if (isLogin) {
      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']
      ElMessage.error(errMsg);
    }
    downloadLoadingInstance.close();
  }).catch((r) => {
    console.error(r)
    ElMessage.error('下载文件出现错误，请联系管理员！')
    downloadLoadingInstance.close();
  })
}


export function get(url, params = {}) {
  return new Promise((resolve, reject) => {
    service.get(url, {
        params: params
      })
      .then(response => {
        setTimeout(() => {}, 500)
        resolve(response);
      }, err => {
        reject(err)
      })
  })
}


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

export function post(url, data = {}, method) {
  return new Promise((resolve, reject) => {
    service({
      method: method || 'post',
      url: url,
      data: data,
    }).then(res => {
      resolve(res.data);
    }).catch(err => {
      reject(err)
    })
  })
}

export function postTwo(url, data = {}, method) {
  return new Promise((resolve, reject) => {
    service({
        method: method || "post",
        url: url,
        data: data,
        responseType: "blob",
      })
      .then((res) => {
        resolve(res);
      })
      .catch((err) => {
        reject(err);
      });
  });
}

export default service