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您可以将报表插件导出和导入各种格式,例如 JSON、SJS和Excel。
为了支持报表插件 IO 功能,需要根据 IO 操作添加特定的脚本文件以供引用。例如:
<script src="scripts/gc.spread.sheets.print.0.0.0.min.js"></script>
<script src="scripts/gc.spread.sheets.io.0.0.0.min.js"></script>
对于报表插件 JSON 序列化,您需要使用Workbook
类的toJSON
方法。
下面的代码展示了如何从 SpreadJS 导出 JSON 文件。
// Export the JSON file.
let json = spread.toJSON();
let content = JSON.stringify(json);
let blob = new Blob([content], { type: "application/json;charset=utf-8" });
let fileNameNode = document.getElementById('json-name');
saveAs(blob, (fileNameNode.value || 'report') + ".json");
使用 spread.save
方法将报表数据导出到 SJS。
下面的代码展示了如何导出 SJS 文件。
// Export the .sjs file.
let fileNameNode = document.getElementById('sjs-name');
spread.save(function (blob) {
// save blob to a file
saveAs(blob, (fileNameNode.value || 'report') + ".sjs");
}, function (e) {
console.log(e);
}, {});
使用 spread.export
方法将报表数据导出到 Excel。
下面的代码展示了如何导出 Excel 文件。
// Export the Excel file.
let fileNameNode = document.getElementById('excel-name');
spread.export(
(blob) => {
saveAs(blob, (fileNameNode.value || 'report') + ".xlsx");
},
null,
{
fileType: GC.Spread.Sheets.FileType.excel,
}
);
对于报表 JSON 反序列化,需要使用 Workbook 类 fromJSON
的方法。。
下面的代码展示了如何导入 JSON 文件。
// Import the JSON file.
const file = ei.target.files[0];
if (file) {
if (!file.type || file.type === 'application/json') {
const reader = new FileReader();
reader.readAsText(file, "UTF-8");
reader.onload = function (evt) {
const fileString = evt.target.result;
const jsonObj = JSON.parse(fileString);
spread.fromJSON(jsonObj);
};
}
}
使用该 spread.open()
方法打开 SJS 格式的报告。
下面的代码展示了如何导入 SJS 文件。
// Import the SJS file.
const file = ei.target.files[0];
if (file) {
spread.open(file, function () { }, function () { }, {});
}
使用该 spread.import
方法导入 Excel 格式的报表。
下面的代码展示了如何导入 Excel 文件。
// Import the Excel file.
const file = ei.target.files[0];
if (file) {
spread.import(file, function () {
}, function () { }, {
fileType: GC.Spread.Sheets.FileType.excel
})
}