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クライアント側でインポートおよびエクスポートメソッドを使用すると、Excelファイル(.xlsx)をJSONにインポートしたり、JSONオブジェクトをExcelにエクスポートしたりできます。
type=warning
saveメソッドで生成したExcel形式ファイルの状態は、ダウンロードによって読み取り専用となります。これはインターネットを経由してダウンロードされるファイルに対してウェブブラウザがZone.Identifier情報を自動的に付与した影響です。Microsoft ExcelはZone.Identifier情報を検知し、Excel形式ファイルの初回オープン時に警告メッセージを表示します。また、エクセルファイルをインポートおよびエクスポートするには、gc.spread.excelio.xx.x.x.min.jsを参照する必要があります。
Excelファイルをローカルにダウンロードすることも、返されたExcelファイル(BLOB型)を取得し、サーバーに送信することもできます。
Excelのインポートおよびエクスポートに使用できるメソッドは、次のとおりです。
次の表は、Excelファイルにインポートまたはエクスポートできる機能を示します。
機能 | 説明 | インポート(excelをjsonに) | エクスポート (jsonをexcelに) |
---|---|---|---|
ワークブック(spread) | tabstrip: tabStripVisible, startSheetIndex, tabStripRatio, tabColor | √ | √ |
スクロールバー: showHorizontalScrollbar, showVerticalScrollbar | √ | √ | |
シート: シートの名前、シートの表示/非表示設定 | √ | √ | |
参考スタイル:R1C1またはA1 | √ | √ | |
カスタム名 | √ | √ | |
共有の文字列 | データシートに使用された文字列(共通の文字列、空白文字列) | √ | √ |
テーマ | カラースキーム | √ | √ |
フォントスキーム( Spread.Sheetsには詳細なフォントがありません) | √ | √ | |
フォーマットスキーム(Spread.Sheetsにはフォーマットスキームがありません) | X | √ | |
スタイル | cellStyles:Spread.Sheetsがサポートされているすべてのスタイル | √ | √ |
さまざまな形式(テーブルに使用される形式、条件付き形式またはフィルタ) | √ | √ | |
tableStyles | √ | √ | |
ワークシート | rowRangeGroup、colRangeGroup | √ | √ |
rowCount と columnCount | √ | √ | |
グリッドライン表示/非表示設定、グリッドラインの色 | √ | √ | |
列ヘッダ/行ヘッダの表示/非表示設定 | √ | √ | |
ズーム | √ | √ | |
選択 | √ | √ | |
activeRow、 activeColumn | √ | √ | |
行・列の固定 (frozenRowCount, frozenColumnCount) | √ | √ | |
デフォルトのrowHeightまたはcolumnWidth | √ | √ | |
columnInfo:列の幅、表示/非表示、スタイル設定 | √ | √ | |
セル結合 | √ | √ | |
シートの保護の状態 | √ | √ | |
rowInfo: 行の高さ、表示/非表示、スタイル設定 | √ | √ | |
cellInfo:セルの値、数式、スタイル、結合設定 | √ | √ | |
カスタム名 | √ | √ | |
条件付き形式 | √ | √ | |
コメント | √ | √ | |
画像 | √ | √ | |
スライサー | √ | √ | |
スパークライン | √ | √ | |
テーブル | √ | √ | |
フィルタ | √ | √ | |
検証 | √ | √ | |
アウトライン | √ | √ | |
印刷 | √ | √ |
次のサンプルコードは、Excelファイルを開き、保存します。コードの最初の部分は、クライアント側のインポートおよびエクスポートの依存関係のファイルを示します。
<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.xx.x.x.min.js"></script>
<!DOCTYPE html>
<html lang="en">
<head>
<title>SpreadJS 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.xx.x.x.css" rel="stylesheet"/>
<script src="./scripts/gc.spread.sheets.all.xx.x.x.min.js" type="application/javascript"></script>
<!--For client-side excel i/o-->
<script src="./scripts/interop/gc.spread.excelio.xx.x.x.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>
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.parse(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>