HTML表格到Excel的Javascript
我试图用这个脚本来保存一个HTML表格到一个Excel文件，它工作正常，但是它不会出现在正确的名称，而是一个随机的string。 而我不明白为什么。
我打电话给：
<input type="button" onclick="tableToExcel('tablename', 'name')" value="Export to Excel"> 码
var tableToExcel = (function() { var uri = 'data:application/vnd.ms-excel;base64,' , template = '<html xmlns:o="urn:schemas-microsoft-com:office:office" xmlns:x="urn:schemas-microsoft-com:office:excel" xmlns="http://www.w3.org/TR/REC-html40"><head><!--[if gte mso 9]><xml><x:ExcelWorkbook><x:ExcelWorksheets><x:ExcelWorksheet><x:Name>{worksheet}</x:Name><x:WorksheetOptions><x:DisplayGridlines/></x:WorksheetOptions></x:ExcelWorksheet></x:ExcelWorksheets></x:ExcelWorkbook></xml><![endif]--></head><body><table>{table}</table></body></html>' , base64 = function(s) { return window.btoa(unescape(encodeURIComponent(s))) } , format = function(s, c) { return s.replace(/{(\w+)}/g, function(m, p) { return c[p]; }) } return function(table, name) { if (!table.nodeType) table = document.getElementById(table) var ctx = {worksheet: name || 'Worksheet', table: table.innerHTML} window.location.href = uri + base64(format(template, ctx)) } })()
您可以使用现代browsera支持的download属性a锚点元素。 首先通过添加一个不可见的锚来修改你的HTML：
<a id="dlink" style="display:none;"></a> <input type="button" onclick="tableToExcel('tablename', 'name', 'myfile.xls')" value="Export to Excel">
还要注意，函数tableToExcel的调用现在有第三个参数 – 指定文件名的地方。
现在使用原始函数的这个修改过的代码：
var tableToExcel = (function () { var uri = 'data:application/vnd.ms-excel;base64,' , template = '<html xmlns:o="urn:schemas-microsoft-com:office:office" xmlns:x="urn:schemas-microsoft-com:office:excel" xmlns="http://www.w3.org/TR/REC-html40"><head><!--[if gte mso 9]><xml><x:ExcelWorkbook><x:ExcelWorksheets><x:ExcelWorksheet><x:Name>{worksheet}</x:Name><x:WorksheetOptions><x:DisplayGridlines/></x:WorksheetOptions></x:ExcelWorksheet></x:ExcelWorksheets></x:ExcelWorkbook></xml><![endif]--></head><body><table>{table}</table></body></html>' , base64 = function (s) { return window.btoa(unescape(encodeURIComponent(s))) } , format = function (s, c) { return s.replace(/{(\w+)}/g, function (m, p) { return c[p]; }) } return function (table, name, filename) { if (!table.nodeType) table = document.getElementById(table) var ctx = { worksheet: name || 'Worksheet', table: table.innerHTML } document.getElementById("dlink").href = uri + base64(format(template, ctx)); document.getElementById("dlink").download = filename; document.getElementById("dlink").click(); } })()
注意最后3个代码行：将URL分配给窗口，而不是将它分配给新的锚点，然后使用新的download属性强制下载为给定的文件名称，然后简单地调用锚点的click()方法。
试一试。
上面的3个代码行在我的情况下不起作用，但在这里我发现，我希望它可以帮助。
function tableToExcel(table, name, filename) { let uri = 'data:application/vnd.ms-excel;base64,', template = '<html xmlns:o="urn:schemas-microsoft-com:office:office" xmlns:x="urn:schemas-microsoft-com:office:excel" xmlns="http://www.w3.org/TR/REC-html40"><title></title><head><!--[if gte mso 9]><xml><x:ExcelWorkbook><x:ExcelWorksheets><x:ExcelWorksheet><x:Name>{worksheet}</x:Name><x:WorksheetOptions><x:DisplayGridlines/></x:WorksheetOptions></x:ExcelWorksheet></x:ExcelWorksheets></x:ExcelWorkbook></xml><![endif]--><meta http-equiv="content-type" content="text/plain; charset=UTF-8"/></head><body><table>{table}</table></body></html>', base64 = function(s) { return window.btoa(decodeURIComponent(encodeURIComponent(s))) }, format = function(s, c) { return s.replace(/{(\w+)}/g, function(m, p) { return c[p]; })} if (!table.nodeType) table = document.getElementById(table) var ctx = {worksheet: name || 'Worksheet', table: table.innerHTML} var link = document.createElement('a'); link.download = filename; link.href = uri + base64(format(template, ctx)); link.click(); }
<!DOCTYPE html> <html> <head> <style> table { font-family: arial, sans-serif; border-collapse: collapse; width: 100%; } td, th { border: 1px solid #dddddd; text-align: left; padding: 8px; } tr:nth-child(even) { background-color: #dddddd; } </style> </head> <body> <input type="button" onclick="tableToExcel('myTable', 'name', 'myfile.xls')" value="Export to Excel" > <table id="myTable"> <tr> <th>Company</th> <th>Contact</th> <th>Country</th> </tr> <tr> <td>Alfreds Futterkiste</td> <td>Maria Anders</td> <td>Germany</td> </tr> <tr> <td>Centro comercial Moctezuma</td> <td>Francisco Chang</td> <td>Mexico</td> </tr> <tr> <td>Ernst Handel</td> <td>Roland Mendel</td> <td>Austria</td> </tr> <tr> <td>Island Trading</td> <td>Helen Bennett</td> <td>UK</td> </tr> <tr> <td>Laughing Bacchus Winecellars</td> <td>Yoshi Tannamuri</td> <td>Canada</td> </tr> <tr> <td>Magazzini Alimentari Riuniti</td> <td>Giovanni Rovelli</td> <td>Italy</td> </tr> </table> </body> </html>