iep-ui/es/toolkits/download.js

An enterprise-class UI design language and Vue-based implementation

import _slicedToArray from 'babel-runtime/helpers/slicedToArray';
import moment from 'moment';
var createObjectURL = function createObjectURL(object) {
  return window.URL ? window.URL.createObjectURL(object) : window.webkitURL.createObjectURL(object);
};

var formatParams = function formatParams(baseUrl, url, params, fileName, headerKey, headerValue, suffix) {
  if (!params) {
    return '';
  }
  var temp = '';
  var _iteratorNormalCompletion = true;
  var _didIteratorError = false;
  var _iteratorError = undefined;

  try {
    for (var _iterator = Object.entries(params)[Symbol.iterator](), _step; !(_iteratorNormalCompletion = (_step = _iterator.next()).done); _iteratorNormalCompletion = true) {
      var _ref = _step.value;

      var _ref2 = _slicedToArray(_ref, 2);

      var k = _ref2[0];
      var v = _ref2[1];

      temp += '&' + k + '=' + v;
    }
  } catch (err) {
    _didIteratorError = true;
    _iteratorError = err;
  } finally {
    try {
      if (!_iteratorNormalCompletion && _iterator['return']) {
        _iterator['return']();
      }
    } finally {
      if (_didIteratorError) {
        throw _iteratorError;
      }
    }
  }

  var serviceUrl = '' + baseUrl + url + '?' + temp.substr(1, temp.length);
  var xhr = new XMLHttpRequest();
  var formData = new FormData();
  xhr.open('get', serviceUrl); // url填写后台的接口地址，如果是post，在formData append参数（参考原文地址）
  xhr.setRequestHeader(headerKey, headerValue);
  xhr.responseType = 'blob';
  xhr.onload = function (e) {
    if (this.status === 200) {
      var blob = this.response;
      // xls文件名称
      var filename = (fileName ? fileName : moment().format('YYYY年MM月DD日 hh:mm:ss')) + '.' + (suffix ? suffix : 'xlsx');
      if (window.navigator.msSaveOrOpenBlob) {
        navigator.msSaveBlob(blob, filename);
      } else {
        var a = document.createElement('a');
        var _url = createObjectURL(blob);
        a.href = _url;
        a.download = filename;
        document.body.appendChild(a);
        a.click();
        window.URL.revokeObjectURL(_url);
      }
    }
  };
  xhr.send(formData);
};

export default formatParams;