Question

我的计算机中有一个简单的Excel文件：＆＃34; D：/Book1.xls"。我想导入它来创建一个表，并将表附加到我的HTML页面中的div标记。

你会在下面修改我的代码吗？

<!DOCTYPE html>
<html>
<head>
<meta charset="EUC-KR">
<title>Insert title here</title>
<style type="text/css">

</style>
<script src='http://alasql.org/console/alasql.min.js'></script>
<script src='http://alasql.org/console/xlsx.core.min.js'></script>
<script src="./libs/jquery-2.1.4.js"></script>
<script type="text/javascript">
    $(document).ready(function() {
        alasql('select * into html("#res",{headers:true}) \
                  from xlsx("d:/Book1.xls",\
                            {headers:true})');
        alert("end of function")
    });
</script>
</head>
<body>
    <div id="res">res</div>
</body>
</html>

Answer 1

问题是您正试图直接从网页访问文件，这是不可能的。您无法访问浏览器之外的任何文件。为此你必须选择html的输入元素，在获取文件数据后，你可以将它存储到javascript变量。

<script src="alasql.min.js"></script>
<script src="xlsx.core.min.js"></script>
<p>Select CSV file to read:</p>
<input id="readfile" type="file" onchange="loadFile(event)"/>
<script>
    function loadFile(event) {
        alasql('SELECT * FROM FILE(?,{headers:true})',[event],function(data){
            console.log(data);
            // You can data to div also.
        });
     }
</script>

Answer 2

脚本

<script src="http://ajax.aspnetcdn.com/ajax/modernizr/modernizr-2.8.3.js"></script>
<script src="http://code.jquery.com/jquery-1.11.3.min.js"></script>
<script src="http://code.jquery.com/ui/1.11.1/jquery-ui.min.js"></script>
<script type="text/javascript" src="http://cdn-na.infragistics.com/igniteui/2018.2/latest/js/infragistics.core.js"></script>
<script type="text/javascript" src="http://cdn-na.infragistics.com/igniteui/2018.2/latest/js/infragistics.lob.js"></script>
<script type="text/javascript" src="http://cdn-na.infragistics.com/igniteui/2018.2/latest/js/modules/infragistics.ext_core.js"></script>
<script type="text/javascript" src="http://cdn-na.infragistics.com/igniteui/2018.2/latest/js/modules/infragistics.ext_collections.js"></script>
<script type="text/javascript" src="http://cdn-na.infragistics.com/igniteui/2018.2/latest/js/modules/infragistics.ext_text.js"></script>
<script type="text/javascript" src="http://cdn-na.infragistics.com/igniteui/2018.2/latest/js/modules/infragistics.ext_io.js"></script>
<script type="text/javascript" src="http://cdn-na.infragistics.com/igniteui/2018.2/latest/js/modules/infragistics.ext_ui.js"></script>
<script type="text/javascript" src="http://cdn-na.infragistics.com/igniteui/2018.2/latest/js/modules/infragistics.documents.core_core.js"></script>
<script type="text/javascript" src="http://cdn-na.infragistics.com/igniteui/2018.2/latest/js/modules/infragistics.ext_collectionsextended.js"></script>
<script type="text/javascript" src="http://cdn-na.infragistics.com/igniteui/2018.2/latest/js/modules/infragistics.excel_core.js"></script>
<script type="text/javascript" src="http://cdn-na.infragistics.com/igniteui/2018.2/latest/js/modules/infragistics.ext_threading.js"></script>
<script type="text/javascript" src="http://cdn-na.infragistics.com/igniteui/2018.2/latest/js/modules/infragistics.ext_web.js"></script>
<script type="text/javascript" src="http://cdn-na.infragistics.com/igniteui/2018.2/latest/js/modules/infragistics.xml.js"></script>
<script type="text/javascript" src="http://cdn-na.infragistics.com/igniteui/2018.2/latest/js/modules/infragistics.documents.core_openxml.js"></script>
<script type="text/javascript" src="http://cdn-na.infragistics.com/igniteui/2018.2/latest/js/modules/infragistics.excel_serialization_openxml.js"></script>

JS

$(function () {
    $("#input").on("change", function () {
        var excelFile,
            fileReader = new FileReader();

        $("#result").hide();

        fileReader.onload = function (e) {
            var buffer = new Uint8Array(fileReader.result);

            $.ig.excel.Workbook.load(buffer, function (workbook) {
                var column, row, newRow, cellValue, columnIndex, i,
                    worksheet = workbook.worksheets(0),
                    columnsNumber = 0,
                    gridColumns = [],
                    data = [],
                    worksheetRowsCount;

                // Both the columns and rows in the worksheet are lazily created and because of this most of the time worksheet.columns().count() will return 0
                // So to get the number of columns we read the values in the first row and count. When value is null we stop counting columns:
                while (worksheet.rows(0).getCellValue(columnsNumber)) {
                    columnsNumber++;
                }

                // Iterating through cells in first row and use the cell text as key and header text for the grid columns
                for (columnIndex = 0; columnIndex < columnsNumber; columnIndex++) {
                    column = worksheet.rows(0).getCellText(columnIndex);
                    gridColumns.push({ headerText: column, key: column });
                }

                // We start iterating from 1, because we already read the first row to build the gridColumns array above
                // We use each cell value and add it to json array, which will be used as dataSource for the grid
                for (i = 1, worksheetRowsCount = worksheet.rows().count(); i < worksheetRowsCount; i++) {
                    newRow = {};
                    row = worksheet.rows(i);

                    for (columnIndex = 0; columnIndex < columnsNumber; columnIndex++) {
                        cellValue = row.getCellText(columnIndex);
                        newRow[gridColumns[columnIndex].key] = cellValue;
                    }


                    data.push(newRow);
                }

                // we can also skip passing the gridColumns use autoGenerateColumns = true, or modify the gridColumns array
                createGrid(data, gridColumns);
            }, function (error) {
                $("#result").text("The excel file is corrupted.");
                $("#result").show(1000);
            });
        }

        if (this.files.length > 0) {
            excelFile = this.files[0];
            if (excelFile.type === "application/vnd.ms-excel" || excelFile.type === "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet" || (excelFile.type === "" && (excelFile.name.endsWith("xls") || excelFile.name.endsWith("xlsx")))) {
                fileReader.readAsArrayBuffer(excelFile);
            } else {
                $("#result").text("The format of the file you have selected is not supported. Please select a valid Excel file ('.xls, *.xlsx').");
                $("#result").show(1000);
            }
        }

    })
});

function createGrid(data, gridColumns) {
    if ($("#grid1").data("igGrid") !== undefined) {
        $("#grid1").igGrid("destroy");
    }

    $("#grid1").igGrid({
        columns: gridColumns,
        autoGenerateColumns: true,
        dataSource: data,
        width: "100%",

    });


}

HTML

<input type="file" id="input" accept="application/vnd.ms-excel, application/vnd.openxmlformats-officedocument.spreadsheetml.sheet" />

<div id="result"></div>
<table id="grid1"></table>

将Excel文件导入HTML页面表

2 个答案: