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SpreadJS是一个纯前端的控件,用户可以在前端页面上进行数据的上传、填报等操作,但是最终还是需要将处理的数据进行持久化,SpreadJS是提供下载当前工作簿的功能的,但是将数据持久化在本地会有很多问题,可能造成数据汇报缓慢,数据的汇报遗漏等。而将数据持久化在服务端往往是更优的选择,这样持久化就完美解决了数据汇报缓慢遗漏等问题
在这篇文章中提到了如何SpreadJS + Vue + Axios 实现服务端加载、上传Excel 。
在此基础上,本文将介绍如何实现SpreadJS + Vue + Axios 服务端加载、上传sjs、ssjson以及xlsx文件 。
1、在前端页面上,添加一个sjs文件,然后通过以下代码进行加载。
spread.open(file, function () {
// success callback to do something
}, function (e) {
console.log(e); // error callback
});
通过以下代码进行导出
spread.save(function (blob) {
// save blob to a file
saveAs(blob, fileName);
}, function (e) {
console.log(e);
});
同时,在v16版本中,对于导入导出ssjson与xlsx文件,有一个新的api接口:spread.import,spread.export
spread.import(file, function () {
// success callback to do something
}, function (e) {
console.log(e); // error callback
}, {
fileType: GC.Spread.Sheets.FileType.excel
});
spread.export(function (blob) {
// save blob to a file
saveAs(blob, fileName);
}, function (e) {
console.log(e);
}, {
fileType: GC.Spread.Sheets.FileType.excel,
includeBindingSource: true
});
以上两种导入接口,第一个参数均为file文件,如果此时不想要前端去上传文件,想从后端获取文件流,然后进行加载,那么可以如下操作
二、本示例用axios获取接口数据:
axios({
method: "post",
url: "spread/importFile",
data: fd,
responseType: "blob",
headers: {
cache: false,
"Access-Control-Allow-Origin": "*",
'X-Requested-With': 'XMLHttpRequest',
crossDomain: true
}
}).then(
response => {},err=>{console.log(err)
});
sjs:
var blob = new Blob([response.data], {type:'application/zip'});
console.time('渲染时间')
this.spread.open(blob,
function () {
console.timeEnd('渲染时间')
},
function (e) {
console.log(e)
},
{openMode:GC.Spread.Sheets.OpenMode.incremental}
);
ssjson:
var blob = new Blob([response.data], {type:'text/plain;charset=utf-8'});
tempFileType = GC.Spread.Sheets.FileType.ssjson;
options = {
incrementalLoad: {
loading: function (progress, args) {
let sheetName = args.sheet.name();
console.log(progress, sheetName);
},
loaded: function () {
console.timeEnd('渲染时间')
}
},
fileType: tempFileType
},
}
console.time('渲染时间')
spread.import(blob, function () {}, function (e) {
console.log(e); // error callback
}, options);
xlsx:
var blob = new Blob([response.data], {type:'application/vnd.openxmlformats-officedocument.spreadsheetml.sheet'});
options = {
openMode:GC.Spread.Sheets.OpenMode.incremental,
fileType: GC.Spread.Sheets.FileType.excel,
progress: (progressArgs) => {
console.log(progressArgs)
},
}
console.time('渲染时间')
spread.import(blob, function () {
console.timeEnd('渲染时间')
}, function (e) {
console.log(e); // error callback
}, options);
其前端代码与后端代码见附件。
关于如何使用,见如下动图:
详细代码可以参考附件:
GCExcelAndSpreadJS_BigWorkbook.zip
作者: Grapecity.China | 审核:Clark.Pan | 更新时间:2023.12.24