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       
(Showing Draft Content)

在客户端导入和导出Excel文件

你可以通过客户端的导入和导出方法将 Excel 转为 JSON 或者将 JSON 对象转换为 Excel。

导出的 Excel 文件由于是从浏览器上下载的,将会被锁定。Excel 导出是通过客户端导出的,不用和服务器交互。当你首次打开 Excel 文件的时候,会显示一个警告信息。

<!DOCTYPE html>是必须的。 另外,为了导入和导出excel文件,用户需要参考该文件: gc.spread.excelio...*.min.js

你可以下载 Excel 文件到本地,或者直接获取 Excel 文件的内容(blob)并将其发送到服务器中。

Excel导入和导出提供以下方法:

  • open
  • save

下表列出了从Excel文件导入或导出的功能。

种类 描述 导入 (excel 到 json) 导出 (json 到 excel)
workbook

(spread)


标签栏:

tabStripVisible, startSheetIndex, tabStripRatio, tabColor

滚动条:

showHorizontalScrollbar, showVerticalScrollbar

表单:

表单是否可见,表单名称

引用类型: R1C1 or A1
自定义名称
sharedStrings 用于 sheet 数据的字符串(普通字符串,带空格的字符串)
theme 颜色方案(Color Scheme)
字体方案 (Spread.Sheets 没有具体的字体)
格式化方案 (Spread.Sheets 没有格式化方案) X
style cellStyles: 所有 Spread.Sheets 支持的 cellStyle
不同的格式 (在 表格,条件格式和筛选中使用的格式)
tableStyles
worksheet rowRangeGroup, colRangeGroup
rowCount and columnCount
gridline visible, gridline color
row header and column header visible
缩放
选择
activeRow, activeColumn
冻结 (frozenRowCount, frozenColumnCount)
默认 rowHeight, 默认 columnWidth
列信息: 列宽,列是否可见,列样式
合并的单元格(merge)
被保护的表单
行信息: 行高, 行是否可见, 行样式
单元格信息: 单元格的值,单元格内的公式,单元格格式
自定义名称
条件格式
批注
图片
切片器
迷你图
表格
筛选
数据验证器
大纲
打印设置

示例代码

下列代码打开并保存了一个 Excel 文件。第一部分的代码是所依赖的 JavaScript 文件:

<script src="https://cdnjs.cloudflare.com/ajax/libs/FileSaver.js/2014-11-29/FileSaver.min.js"></script>
    <link href="./css/gc.spread.sheets.excel2013white.x.xx.xxxx.x.css" rel="stylesheet"/>
    <script src="./scripts/gc.spread.sheets.all.x.xx.xxxx.x.min.js" type="application/javascript"></script>
    <!--For client-side excel i/o-->
    <script src="./scripts/interop/gc.spread.excelio.x.xx.xxxxx.x.min.js"></script>
<!DOCTYPE html>
<html lang="en">
<head>
<title>SpreadJS V11 Client Side ExcelIO</title>
    <script src="https://cdnjs.cloudflare.com/ajax/libs/FileSaver.js/2014-11-29/FileSaver.min.js"></script>
    <link href="./css/gc.spread.sheets.excel2013white.13.0.0.css" rel="stylesheet"/>
    <script src="./scripts/gc.spread.sheets.all.13.0.0.min.js" type="application/javascript"></script>
    <!--For client-side excel i/o-->
    <script src="./scripts/interop/gc.spread.excelio.13.0.0.min.js"></script>
</head>
<body>
<div>
<input type="file" name="files[]" id="fileDemo" accept=".xlsx,.xls"/>
    <input type="button" id="loadExcel" value="Import" onclick="ImportFile()"/>   
    <input type="button" class="btn btn-default" id="saveExcel" value="Export" onclick="ExportFile()"/>
<input type="text" id="exportFileName" placeholder="Export file name" class="form-control" value="export.xlsx"/>
    <div id="ss" style="width:100%;height:500px"></div>
</div>
</div>
</body>
<script>
var workbook, excelIO;
window.onload = function () {
workbook = new GC.Spread.Sheets.Workbook(document.getElementById("ss"));
excelIO = new GC.Spread.Excel.IO();
}
function ImportFile() {
    var excelFile = document.getElementById("fileDemo").files[0];
    excelIO.open(excelFile, function (json) {
        var workbookObj = json;
       workbook.fromJSON(workbookObj);
    }, function (e) {
        console.log(e);
    });
}
function ExportFile() {
    var fileName = document.getElementById("exportFileName").value;
    if (fileName.substr(-5, 5) !== '.xlsx') {
        fileName += '.xlsx';
    }
    var json = JSON.stringify(workbook.toJSON());
    excelIO.save(json, function (blob) {
        saveAs(blob, fileName);
    }, function (e) {
        console.log(e);
    });
}
</script>
</html>