js 文件下载

 1 ????exportClick() { 2 ????????var 3 ????????????profile = { 4 ????????????????content: this.state.profile, 5 ????????????????type: MappingTypeForSevice.DomainMapping 6 ????????????}; 7 ????????if (this.props.viewType == ViewType.Edit) 8 ????????????profile = this.assembleProfileDto(); 9 ????????else10 ????????????profile.content.id = this.props.mappingId != ‘‘ ? this.props.mappingId : this.id;11 ????????CommonFunction.exportClick(profile, this.state.mappingName);12 ????};

 1 export const exportClick = (profile, mappingName) => { 2 ????MappingService.Downloadmapping(profile).then( 3 ????????result => { 4 ????????????if (!result) 5 ????????????????throw ("error"); 6 ????????????export_raw(mappingName, result) 7 ????????} 8 ????).catch(e => { 9 ????????$$.error(`error: ${e}`);10 ????});11 };

 1 var 2 ????export_raw = (name = ‘‘, data) => { 3 ????????let 4 ????????????eleLink = document.createElement(‘a‘); 5 ????????data = new Blob([data], { type: "text/xml" }); 6 ????????eleLink.style.display = ‘none‘; 7 ????????eleLink.download = name + ‘.xml‘; 8 ????????if (window.navigator.msSaveOrOpenBlob) { 9 ????????????var10 ????????????????xml = name + ‘.xml‘;11 ????????????navigator.msSaveOrOpenBlob(data, xml);12 ????????} else {13 ????????????//let14 ????????????// ???dataUrl = "data:;base64," + data;15 ????????????//eleLink.href = dataUrl;16 ????????????eleLink.href = URL.createObjectURL(data);17 ????????????document.body.appendChild(eleLink);18 ????????????eleLink.click();19 ????????????document.body.removeChild(eleLink);20 ????????};21 ????};

 1 export_raw(name = ‘‘, data) { 2 ????let 3 ????????eleLink = document.createElement(‘a‘); 4 ????eleLink.style.display = ‘none‘; 5 ????eleLink.download = name + ‘.xls‘; 6 ????data = "data:;base64," + data; 7 ????if (window.navigator.msSaveOrOpenBlob) { 8 ????????// if browser is IE ?9 ????????let blob = this.dataURLtoBlob(data);10 ????????navigator.msSaveOrOpenBlob(blob, name + ‘.xls‘);11 ????} else {12 ????????eleLink.href = data;13 ????????document.body.appendChild(eleLink);14 ????????eleLink.click();15 ????????document.body.removeChild(eleLink);16 ????};17 };

 1 ????dataURLtoBlob = (dataurl) => { 2 ????????var 3 ????????????arr = dataurl.split(‘,‘), 4 ????????????mime = arr[0].match(/:(.*?);/)[1], 5 ????????????bstr = atob(arr[1]), n = bstr.length, 6 ????????????u8arr = new Uint8Array(n); 7 ????????while (n--) { 8 ????????????u8arr[n] = bstr.charCodeAt(n); 9 ????????}10 ????????return new Blob([u8arr], { type: mime });11 ????};