JS如何submit

var downloadForm=$("#downloadForm");
	downloadForm.append("<input type='hidden' id='isQuery' name='isQuery' value='"+true+"' />");
	downloadForm.append("<input type='hidden' id='numlist' name='numlist' value='"+JSON.stringify(numlist)+"' />");
	downloadForm.attr("action","../../statisticsSearch/exportExcel");
	downloadForm.submit();

js 下載

function downloadFile(id) {

    var url =  "<%=request.getContextPath()%>/cer/downloadFile";
    var form = $("<form></form>").attr("action", url).attr("method", "post");
    form.append($("<input></input>").attr("type", "hidden").attr("name", "fileId").attr("value", id));
    form.appendTo('body').submit().remove();
   
}