后台

 public MemoryStream GetLavPrintMS(InvPrintDTO dto){using var ms = new MemoryStream();string sqlStr = @"";var table = GetDataTable(sqlStr);var list = DataTableHelper.DataTableToList<DTO>(table);var doc = CreateWordData(list);doc.Write(ms);byte[] buffer = ms.ToArray();return new MemoryStream(buffer);}

 private XWPFDocument CreateWordData(List<DTO> list){var doc = new XWPFDocument();foreach (var item in list){var row = doc.CreateParagraph().CreateRun();row.SetText(item.BatchNo);row.IsBold = true;row.FontSize = 12;//创建tablevar table = doc.CreateTable(3, 2);table.Width = 5000;doc.CreateParagraph();//创建空白行}return doc;}

控制器：

public FileResult PrintLabel([FromBody] DTO dto){var stream = _service.GetLavPrintMS(dto);return File(stream, "text/plain", "test.docx");}

前端：

HTML

       <button type="button" onclick="Print()"><span><i class="la la-print"></i><span>Print</span></span></button>

js:

function Print(){var oReq = new XMLHttpRequest();oReq.open("POST", '/Print', true);oReq.setRequestHeader('Content-type', 'application/json;');oReq.responseType = "blob";oReq.onload = function(oEvent) {QISLoading.Hide();var content = oReq.response;var blob = new Blob([content]);var elink = document.createElement('a');elink.download = fileName;elink.style.display = 'none';elink.href = URL.createObjectURL(blob);document.body.appendChild(elink);elink.click();document.body.removeChild(elink);};oReq.send(JSON.stringify(DTO));
}