做大站，或者做站群的进修都可能需要用到DEDECMS的多站点功能，但是DEDE的这个功能还有一些问题，比如说图片路径问题，默认图片上传是用的相对路径，启用多站点后，图片路径就不对了，这时我今天搞了半天找到一个临时解决办法，还不能确定是否带来新的问题，仅供大家参考，也希望大家提出宝贵意见。

1、打开/include/dialog/select_images_post.php 把

$inquery = "INSERT INTO `idea_uploads`(arcid,title,url,mediatype,width,height,playtime,filesize,uptime,mid)
  VALUES ('0','$filename','".$activepath."/".$filename."','1','$imgwidthValue','$imgheightValue','0','{$imgsize}','{$nowtme}','".$cuserLogin->getUserID()."'); ";
$dsql->ExecuteNoneQuery($inquery);
$fid = $dsql->GetLastID();
AddMyAddon($fid, $activepath.'/'.$filename);
$CKUpload = isset($CKUpload)? $CKUpload : FALSE;
if ($GLOBALS['cfg_html_editor']=='ckeditor' && $CKUpload)
{
    $fileurl = $activepath.'/'.$filename;
    $message = '';
    
    $str='<script type="text/javascript">window.parent.CKEDITOR.tools.callFunction('.$CKEditorFuncNum.', \''.$fileurl.'\', \''.$message.'\');</script>';
    exit($str);
}

修改成

if($cfg_multi_site=='Y')
{	
	if(empty($cfg_basehost)) $cfg_basehost = 'http://'.$_SERVER["HTTP_HOST"];
	$activepath2 = $cfg_basehost.$activepath;
} else {
	$activepath2 = $activepath;
}

$inquery = "INSERT INTO `idea_uploads`(arcid,title,url,mediatype,width,height,playtime,filesize,uptime,mid)
  VALUES ('0','$filename','".$activepath2."/".$filename."','1','$imgwidthValue','$imgheightValue','0','{$imgsize}','{$nowtme}','".$cuserLogin->getUserID()."'); ";
$dsql->ExecuteNoneQuery($inquery);
$fid = $dsql->GetLastID();
AddMyAddon($fid, $activepath2.'/'.$filename);
$CKUpload = isset($CKUpload)? $CKUpload : FALSE;
if ($GLOBALS['cfg_html_editor']=='ckeditor' && $CKUpload)
{
    $fileurl = $activepath2.'/'.$filename;
    $message = '';
    
    $str='<script type="text/javascript">window.parent.CKEDITOR.tools.callFunction('.$CKEditorFuncNum.', \''.$fileurl.'\', \''.$message.'\');</script>';
    exit($str);
}

这是为了解决CKEditor 上传图片的时候返回绝对路径

2、打开/include/dialog/select_images.php 把

$activeurl = '..'.$activepath;

改成

$activeurl = $activepath;

把两处的 

$reurl = "$activeurl/$file";

改成

		if($cfg_multi_site=='Y')
		{	
			if(empty($cfg_basehost)) $cfg_basehost = 'http://'.$_SERVER["HTTP_HOST"];
			$reurl = $cfg_basehost."$activeurl/$file";
		} else {
			$reurl = "$activeurl/$file";
		}

这是为了解决图片浏览器 上传图片的时候返回绝对路径

3、打开/dede/media_add.pp 找到最下面的这段代码

$inquery = "INSERT INTO `idea_uploads`(title,url,mediatype,width,height,playtime,filesize,uptime,mid)
       VALUES ('$ntitle','$filename','$mediatype','$width','$height','$playtime','$filesize','$uptime','$adminid'); ";

在其上方添加

			if($cfg_multi_site=='Y')
			{	
				if(empty($cfg_basehost)) $cfg_basehost = 'http://'.$_SERVER["HTTP_HOST"];
				$filename = $cfg_basehost.$filename;
			}