使用Java / javascript和apache POI导出.xls文件时获取损坏的文件

如果有人遇到相同的问题，则发布此解决方案，我通过base64将字节数组编码为字符串来解决此问题，如下所示。

ByteArrayOutputStream outputStream = new ByteArrayOutputStream(); workbook.write(outputStream); String res = base64.getEnprer().enpreToString(outputStream.toByteArray());

在Javascript中，我从下面的链接使用base64ToBlob方法解码了该字符串

http://codingdict.com/questions/8184

function base64toBlob(base64Data, contentType) {    contentType = contentType || '';    var sliceSize = 1024;    var byteCharacters = atob(base64Data);    var bytesLength = byteCharacters.length;    var slicesCount = Math.ceil(bytesLength / sliceSize);    var byteArrays = new Array(slicesCount);    for (var sliceIndex = 0; sliceIndex < slicesCount; ++sliceIndex) {        var begin = sliceIndex * sliceSize;        var end = Math.min(begin + sliceSize, bytesLength);        var bytes = new Array(end - begin);        for (var offset = begin, i = 0; offset < end; ++i, ++offset) { bytes[i] = byteCharacters[offset].charCodeAt(0);        }        byteArrays[sliceIndex] = new Uint8Array(bytes);    }    return new Blob(byteArrays, { type: contentType });}