js-xls - sheet 到 json on Angular returns 只有第一行

Question

我有一个包含此数据的 xlsx 文件：

Totale venduto  |   Differenza  |   Totale incassato
3.354,95        |   16,73       |   3.371,68

此文件作为 BLOB 发送到方法 readBlob，如以下代码所示：

import { utils, write, read, readFile, WorkBook, WorkSheet, } from 'xlsx';

export class ExportXlsService
{
    public readBlob(data: any)
    {
        let reader = new FileReader()
        reader.onload = () =>
        {
            let u8 = new Uint8Array(reader.result);
            let wb: WorkBook = read(u8, { type: 'array' });        
            let wsname: string = wb.SheetNames[0];
            let ws: WorkSheet = wb.Sheets[wsname];        
            console.log(JSON.stringify(ws));
            // Read data                
            let xlsData = utils.sheet_to_json(ws, { header: 1 });    
            console.log(JSON.stringify(xlsData));
        }
        reader.readAsArrayBuffer(data);
    }
}

我不明白为什么当我调用 utils.sheet_to_json 时它 returns 只有第一行数据。

控制台输出如下：

{"!ref":"A1:C1","A1":{"t":"s","v":"Totale venduto","r":"<t>Totale venduto</t>","h":"Totale venduto","w":"Totale venduto"},"B1":{"t":"s","v":"Differenza","r":"<t>Differenza</t>","h":"Differenza","w":"Differenza"},"C1":{"t":"s","v":"Totale incassato","r":"<t>Totale incassato</t>","h":"Totale incassato","w":"Totale incassato"},"A2":{"t":"n","v":3354.95,"w":"3,354.95"},"B2":{"t":"n","v":16.72999945282936,"w":"16.73"},"C2":{"t":"n","v":3371.679999452829,"w":"3,371.68"}}

[["Totale venduto","Differenza","Totale incassato"]]

Answer 1

我发现了问题。在 documantation 中，我看到工作表默认 range 是 (ws['!ref'])。所以查看 console.log(JSON.stringify(ws)) 的内容，我发现范围是 "!ref":"A1:C1".

设置范围为"!ref":"A1:C2":

let xlsData = utils.sheet_to_json(ws, { range: "A1:C2", header: 1 });

输出如下：

[["Totale venduto","Differenza","Totale incassato"],["3,354.95","16.73","3,371.68"]]

js-xls - sheet 到 json on Angular returns 只有第一行

js-xls - sheet to json on Angular returns only the first row

typescript

js-xlsx

angular