需求:接收后端返回的文件流導出Excel
自己項目中遇到過,親測有效
情況二使用過程中解決的問題:
1.直接接受的文件流下載格式為txt且亂碼。需要通過 下面這句代碼來轉成Excel:
let url = new Blob([xmlHttp.response], { type: 'application/vnd.ms-excel' });
2.文件名亂碼,顯示數字單詞組成的隨機字符串。需要后端在header中返回文件名,轉義獲取
//文件名 link.download = decodeURIComponent(xmlHttp.getResponseHeader("content-disposition").split(";")[1].split("filename=")[1]);
3.IE或者360兼容模式下,無法下載
//兼容IE if (window.navigator && window.navigator.msSaveOrOpenBlob) { let url = new Blob([xmlHttp.response], { type: 'application/vnd.ms-excel' }); window.navigator.msSaveOrOpenBlob(url, decodeURIComponent(xmlHttp.getResponseHeader("content-disposition").split(";")[1].split("filename=")[1])); }
情況一:無需傳token
href:接口地址
queryValues:傳參
export function batchExport(href, queryValues) { const link = document.createElement('a'); link.href = `${href}?${qs.stringify(queryValues)}`; link.download = '導出.xls'; link.click(); }
情況二:header中傳token,兼容IE,360兼容模式,文件名不會亂碼
decodeURIComponent(xmlHttp.getResponseHeader("content-disposition").split(";")[1].split("filename=")[1] //從header中獲取文件名,需后端提供,如果是前端定義的文件名,可直接 link.download = '文件名XXX'
href:接口地址
queryValues:傳參
export function batchExport(href, queryValues) { let xmlHttp = null; if (window.ActiveXObject) { xmlHttp = new window.ActiveXObject('Microsoft.XMLHTTP'); } else if (window.XMLHttpRequest) { xmlHttp = new XMLHttpRequest(); } if (xmlHttp != null) { xmlHttp.ContentType = 'application/vnd.ms-excel'; xmlHttp.open('get', `${href}?${qs.stringify(queryValues)}`, true); xmlHttp.setRequestHeader('token', getUserInfo().token); xmlHttp.responseType = 'blob'; xmlHttp.send(); xmlHttp.onreadystatechange = doResult; } function doResult() { let link = document.createElement('a'); link.style.display = 'none'; if (xmlHttp.readyState === 4) { if (xmlHttp.status === 200) { //兼容IE if (window.navigator && window.navigator.msSaveOrOpenBlob) { let url = new Blob([xmlHttp.response], { type: 'application/vnd.ms-excel' }); window.navigator.msSaveOrOpenBlob(url, decodeURIComponent(xmlHttp.getResponseHeader("content-disposition").split(";")[1].split("filename=")[1])); }else{ //其他瀏覽器 let url = createObjectURL((new Blob([xmlHttp.response], { type: 'application/vnd.ms-excel' }))); //文件名 link.download = decodeURIComponent(xmlHttp.getResponseHeader("content-disposition").split(";")[1].split("filename=")[1]); link.href = url; link.click(); } } else { message.error('下載失敗'); } } } }
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