正在做一个小项目, 从数据库中查询数据放在 HTML Table 中. 现在想要从这个 table 中导出数据来. 另外用户需要选择导出的列. 使用 JQuery 的导出插件可以完成这个需求. 

 jQuery Plugin to Export HTML Tables

例子: 

导入插件: 

<script src=http://www.mamicode.com/"jquery-tableexport/tableExport.js"></script>>html: 
<a href="#" onClick ="$(‘#table-name‘).tableExport({type:‘excel‘, separator:‘;‘, escape:‘false‘});" id="buttonExportData" class="ui-btn ui-btn-inline ui-mini ui-shadow ui-corner-all">Export XLS</a>
插件还有以下这些参数选项: 
separator: ‘,‘
ignoreColumn: [2,3],
tableName:‘yourTableName‘
type:‘csv‘
pdfFontSize:14
pdfLeftMargin:20
escape:‘true‘
htmlContent:‘false‘
consoleLog:‘false‘
通过 ignoreColumn 可以指定哪几列不被导出. 

JS-XLSX
导入 excel 2007 以上版本, 可以使用 JS-XLSX 插件. 首先导入 js 包:
<!-- https://github.com/SheetJS/js-xlsx/blob/master/jszip.js -->
<script src=http://www.mamicode.com/"/path/to/jszip.js"></script>>
Node.js 安装:
$ npminstall xlsx
$ node
> require(‘xlsx‘).readFile(‘excel_file.xlsx‘);
然后可以使用这个插件把 XLSX 文件转为 JSON, CSV, Formula 输出. 
function get_radio_value( radioName ) {
    var radios = document.getElementsByName( radioName );
    for( var i = 0; i < radios.length; i++ ) {
        if( radios[i].checked ) {
            return radios[i].value;
        }
    }
}
 
function to_json(workbook) {
    var result = {};
    workbook.SheetNames.forEach(function(sheetName) {
        var roa = XLSX.utils.sheet_to_row_object_array(workbook.Sheets[sheetName]);
        if(roa.length > 0){
            result[sheetName] = roa;
        }
    });
    return result;
}
 
function to_csv(workbook) {
    var result = [];
    workbook.SheetNames.forEach(function(sheetName) {
        var csv = XLSX.utils.sheet_to_csv(workbook.Sheets[sheetName]);
        if(csv.length > 0){
            result.push("SHEET: " + sheetName);
            result.push("");
            result.push(csv);
        }
    });
    return result.join("\n");
}
 
function to_formulae(workbook) {
    var result = [];
    workbook.SheetNames.forEach(function(sheetName) {
        var formulae = XLSX.utils.get_formulae(workbook.Sheets[sheetName]);
        if(formulae.length > 0){
            result.push("SHEET: " + sheetName);
            result.push("");
            result.push(formulae.join("\n"));
        }
    });
    return result.join("\n");
}
 
var tarea = document.getElementById('b64data');
function b64it() {
    var wb = XLSX.read(tarea.value, {type: 'base64'});
    process_wb(wb);
}
 
function process_wb(wb) {
    var output = "";
    switch(get_radio_value("format")) {
        case "json":
        output = JSON.stringify(to_json(wb), 2, 2);
            break;
        case "form":
            output = to_formulae(wb);
            break; 
        default:
        output = to_csv(wb);
    }
    if(out.innerText === undefined) out.textContent = output;
    else out.innerText = output;
}
 
var drop = document.getElementById('drop');
function handleDrop(e) {
    e.stopPropagation();
    e.preventDefault();
    var files = e.dataTransfer.files;
    var i,f;
    for (i = 0, f = files[i]; i != files.length; ++i) {
        var reader = new FileReader();
        var name = f.name;
        reader.onload = function(e) {
            var data = http://www.mamicode.com/e.target.result;>插件作者地址: author

JQuery 导入导出 Excel