关键词：confirm、function入参、window.location.href
<td>
<u style="cursor:pointer" onclick="doDelete('<%=folder.getFolderId()%>')">删除</u>
</td>
//删除操作函数，js函数入参无须指定参数类型
function doDelete(folderId) {
if(confirm("确认删除吗？删除后，数据将无法恢复！")){
window.location.href="folder.cmd.FolderCommand.do?method=deleteByFolderId&folderId="+folderId;
}
}