js模拟用户多次点击下载文件

/** * Javascript 多文件下载 * 动态创建a标签，模拟用户多次点击 */function download_files(files) {    function download_next(i) {        if(i>=files.length) {            return;        }        var a = document.createElement('a');        a.href = files[i];        a.target = '_parent';        // Use a.download if available, it prevents plugins from opening.        if ('download' in a) {            a.download = files[i].filename;        }        // Add a to the doc for click to work.        (document.body || document.documentElement).appendChild(a);        if (a.click) {            a.click(); // The click method is supported by most browsers.        } else {            $(a).click(); // Backup using jquery        }        // Delete the temporary link.        a.parentNode.removeChild(a);        // Download the next file with a small timeout. The timeout is necessary        // for IE, which will otherwise only download the first file.        setTimeout(function () { download_next(i + 1); }, 500);    }    // Initiate the first download.    download_next(0);}

//调用时传入file文件名数组

function multiDown(){var contentsId = $("#contentsId").val();if(contentsId == "" || contentsId == null){return ;}//E07007if($("input[type='checkbox'][name='fileNameCk']:checked").length  == 0){warningShow("E07007",getErrorMessage("0","E07007",""));return;}//E07006confirmationShow("E07006",getErrorMessage("0","E07006",""),function(){var fName = new Array();$("input[type='checkbox'][name='fileNameCk']:checked").each(function(){fName.push($(this).val());})//E00008var files = new Array();for(var i = 0;i<fName.length;i++){files.push("ContentsDetail!download2.action?status=multi&" + "fileAttachFileName="+encodeURIComponent(fName[i])+"&contentsDto.contentsId="+$("#contentsId").val());}download_files(files);});}