从客户端(ExportContent="...ontinuous <br />Pass Count":13...")中检测到有潜在危险的 Request.Form 值。
mvc中，用chrome浏览器导出excel提示如题错误的解决办法。
<system.web>
<httpRuntime requestValidationMode="2.0" targetFramework="4.5" />
<pages validateRequest="false" >
[ValidateInput(false)] public ActionResult GridToExcel() { if (Request["ExportContent"] != "") { string listname = Request["listname"]; string sheetname = Request["sheetname"]; string tmpContent = Request["ExportContent"];//获取传递上来的文件内容 DataTable dt = Utility.ToDataTable(tmpContent);////rptSource.Tables[0]; //ExcelHelper.DataTable3Excel(dt, RptName); Workbook b = FileExportExcel.OutFileToDisk(dt, listname, sheetname); string filename = listname + "_" + DateTime.Now.ToString("yyyyMMddHHiiss"); return File(b.SaveToStream().ToArray(), "application/octet-stream", filename + ".xls"); } else { return null; } //test(); //return null; }
public static DataTable ToDataTable(string json) { DataTable dataTable = new DataTable(); //实例化 DataTable result; try { JavaScriptSerializer javaScriptSerializer = new JavaScriptSerializer(); javaScriptSerializer.MaxJsonLength = Int32.MaxValue; //取得最大数值 ArrayList arrayList = javaScriptSerializer.Deserialize<ArrayList>(json); if (arrayList.Count > 0) { foreach (Dictionary<string, object> dictionary in arrayList) { if (dictionary.Keys.Count<string>() == 0) { result = dataTable; return result; } if (dataTable.Columns.Count == 0) { string s = ""; Type aa = s.GetType(); double f = 0.001d; Type bb = f.GetType(); int i = 1; Type cc = i.GetType(); foreach (string current in dictionary.Keys) { if (object.Equals(dictionary[current], null)) dataTable.Columns.Add(current, aa); else dataTable.Columns.Add(current, dictionary[current].GetType() == cc ? bb : dictionary[current].GetType()); } } DataRow dataRow = dataTable.NewRow(); foreach (string current in dictionary.Keys) { dataRow[current] = dictionary[current]; } dataTable.Rows.Add(dataRow); //循环添加行到DataTable中 } } } catch (Exception e) { } result = dataTable; return result; }
using Aspose.Cells;
public static Workbook OutFileToDisk(DataTable dt, string tableName, string sheetname = "", string path = "") { Workbook workbook = new Workbook(); //工作簿 Worksheet sheet = workbook.Worksheets[0]; //工作表\ if (!string.IsNullOrEmpty(sheetname)) { sheet.Name = sheetname; } Cells cells = sheet.Cells;//单元格 //为标题设置样式 Style styleTitle = workbook.Styles[workbook.Styles.Add()];//新增样式 styleTitle.HorizontalAlignment = TextAlignmentType.Center;//文字居中 styleTitle.Font.Name = "宋体";//文字字体 styleTitle.Font.Size = 18;//文字大小 styleTitle.Font.IsBold = true;//粗体 //样式2 Style style2 = workbook.Styles[workbook.Styles.Add()];//新增样式 style2.HorizontalAlignment = TextAlignmentType.Center;//文字居中 //style2.Font.Name = "宋体";//文字字体 //style2.Font.Size = 14;//文字大小 style2.Font.IsBold = true;//粗体 style2.IsTextWrapped = true;//单元格内容自动换行 style2.Borders[BorderType.LeftBorder].LineStyle = CellBorderType.Thin; style2.Borders[BorderType.RightBorder].LineStyle = CellBorderType.Thin; style2.Borders[BorderType.TopBorder].LineStyle = CellBorderType.Thin; style2.Borders[BorderType.BottomBorder].LineStyle = CellBorderType.Thin; //样式3 Style style3 = workbook.Styles[workbook.Styles.Add()];//新增样式 //style3.HorizontalAlignment = TextAlignmentType.Center;//文字居中 style3.Font.Name = "宋体";//文字字体 //style3.Font.Size = 12;//文字大小 style3.Borders[BorderType.LeftBorder].LineStyle = CellBorderType.Thin; style3.Borders[BorderType.RightBorder].LineStyle = CellBorderType.Thin; style3.Borders[BorderType.TopBorder].LineStyle = CellBorderType.Thin; style3.Borders[BorderType.BottomBorder].LineStyle = CellBorderType.Thin; int Colnum = dt.Columns.Count;//表格列数 int Rownum = dt.Rows.Count;//表格行数 //插入图片 //FileStream fs = new FileStream(HttpContext.Current.Server.MapPath("~/Scripts/Image") + "/excelImage.png", FileMode.Open); //byte[] byteData = new byte[fs.Length]; //fs.Read(byteData, 0, byteData.Length); //fs.Close(); //cells.Merge(0, 0, 1, Colnum);//合并单元格 //cells[0, 0].PutValue(byteData);//填写内容 //cells.SetRowHeight(0, 38); sheet.Pictures.Add(0, 0, HttpContext.Current.Server.MapPath("~/Scripts/Image") + "/excelImage.png", 165, 43); //生成行1 标题行 cells.Merge(1, 0, 1, Colnum);//合并单元格 cells[1, 0].PutValue(tableName);//填写内容 cells[1, 0].SetStyle(styleTitle); cells.SetRowHeight(0, 38); //生成行2 列名行 for (int i = 0; i < Colnum; i++) { cells[2, i].PutValue(dt.Columns[i].ColumnName); cells[2, i].SetStyle(style2); //cells.SetRowHeight(1, 25); } //生成数据行 for (int i = 0; i < Rownum; i++) { for (int k = 0; k < Colnum; k++) { cells[3 + i, k].PutValue(dt.Rows[i][k]);//.ToString() cells[3 + i, k].SetStyle(style3); } //cells.SetRowHeight(2 + i, 24); } return workbook; //workbook.Save(path); }
function GridtoExcel(grid, listname, sheetname) { var records = []; var colu = []; for (var i = 1; i < grid.columns.length; i++) { if ((grid.columns[i].text === "") || (grid.columns[i].getId() === "")) { } else { var dic = new Object(); dic.text = grid.columns[i].text; dic.value = grid.columns[i].dataIndex; colu.push(dic); } } if (grid.getStore().data.items.length > 0) { for (var i = 0; i < grid.getStore().data.items.length; i++) { var object = new Object; var item = grid.getStore().data.items[i].data; for (var j = 0; j < colu.length; j++) { var daIndex = eval([colu[j].value]); object[colu[j].text] = item[daIndex[0]]; } records.push(object); } } else { var object = new Object; for (var j = 0; j < colu.length; j++) { object[colu[j].text] = null; } records.push(object); } if (records.length > 0) { var tempForm = document.createElement("form"); tempForm.action = '/Home/GridToExcel'; tempForm.method = "POST"; tempForm.target = "_blank"; var hideInput = document.createElement("input"); hideInput.type = "hidden"; hideInput.name = "ExportContent" hideInput.value = Ext.JSON.encode(records); tempForm.appendChild(hideInput); var hideInput1 = document.createElement("input"); hideInput1.type = "hidden"; hideInput1.name = "listname" hideInput1.value = listname; tempForm.appendChild(hideInput1); var hideInput2 = document.createElement("input"); hideInput2.type = "hidden"; hideInput2.name = "sheetname" hideInput2.value = sheetname; tempForm.appendChild(hideInput2); tempForm.style.display = 'none'; // tempForm.get(0).encoding = 'application/json'; document.body.appendChild(tempForm); tempForm.submit(); document.body.removeChild(tempForm); } else { // } }
