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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:
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 | √ | √ |
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>