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       
(Showing Draft Content)

导入导出CSV文件

问题:如何导入导出CSV文件


解决方案:

我们对于CSV有两个接口提供,一个是getCsv,另一个是setCsv,下面是api,我们的导入导出就是围绕这两个api来实现。

https://demo.grapecity.com.cn/spreadjs/help/api/classes/GC.Spread.Sheets.Worksheet#getcsv

https://demo.grapecity.com.cn/spreadjs/help/api/classes/GC.Spread.Sheets.Worksheet#setcsv

导入CSV,我们就使用set方法,代码层面,主要思路就是读取文件操作,然后文件转成fileString,最后通过setCsv设置。CSV接口的传参可以到上面api中了解,传参也可以通过input获取。

function csvChange() {
    var ssjsonFile = document.getElementById("fileDemoCsv").files[0];
    //获取到文件列表
    var files = $('#fileDemoCsv').prop('files');
    //新建一个FileReader
    var reader = new FileReader();
    //读取文件
    reader.readAsText(files[0], "UTF-8");
    //读取成功触发onload事件
    reader.onload = function (evt) {
        var fileString = evt.target.result;
        sheet.setCsv(0, 0, fileString, "\r\n", ",");
    };
    // 读取失败触发onerror
    reader.onerror = function (e) {
        console.log(e);
    };
}

导出CSV,我们只需使用getCsv获取到csv,在调用导出文件的方法即可。

var testJson = spread.getSheet(0).getCsv(0, 0, spread.getSheet(0).getRowCount(), spread.getSheet(0).getColumnCount(), "\r\n", ",");

下载附件即可查看完整的demo,导出文件的方法里面也有写,这边就不赘述了,直接使用即可。

ImportCSV.html

作者: Grapecity.China | 审核:Clark.Pan | 更新时间:2023.09.27