ajax模拟form表单同步方式下载文件

    // 模拟表单提交同步方式下载文件
    // 能够弹出保存文件对话框
    function jumpDownload() {
        var url = "http://localhost:8080/ajaxDownloadServlet.do";
        var fileName = "testAjaxDownload.txt";
        var form = $("<form></form>").attr("action", url).attr("method", "post");
        form.append($("<input></input>").attr("type", "hidden").attr("name", "fileName").attr("value", fileName));
        form.appendTo('body').submit().remove();
    }