python django 实现上传文件到服务器

下面贴出事例代码

#----图片上传
def otherimgupload(request):
    timepath=time.strftime('%Y/%m/%d/',time.localtime(time.time()))
    nowtime=int(time.time())
    hostname = socket.gethostname()
    if request.FILES:
        file = request.FILES.getlist('file')#拿到上传文件
        if not file:
            return None
        listall=[]
        for f in file:
            filetype=f.name.split(".")[-1]#获取文件类型
            #视频上传
            if (filetype.lower() in ["mp4","mov","avi","3gp","3gp2","wav","rm","mpg","asf","mid"]):
                mediatype="video"
                tmp = random.randint(100, 999)#产生随机数
                newpath="/mnt/data/resources/other/"+timepath
                imgpath=newpath+str(nowtime)+str(tmp)+"."+filetype
                databasepath="other/"+timepath+str(nowtime)+str(tmp)+"."+filetype
                if not os.path.isdir(newpath):
                    os.makedirs(newpath)
        
                des_origin_f = open(imgpath,"w")#拿到打开文件对象
                for chunk in f.chunks():
                    des_origin_f.write(chunk)#将文件写入磁盘
                des_origin_f.close()#关闭

                picurl="http://"+hostname+"img.zz91.com/other/"+timepath+str(nowtime)+str(tmp)+"."+filetype
            else:
                mediatype="pic"
                suportFormat = ['BMP', 'GIF', 'JPG','JPGE', 'PNG','JPEG','jpg','mp4']
                tempim = StringIO.StringIO()
                mstream = StringIO.StringIO(f.read())
                im = Image.open(mstream)
                
                
                rheight=800
                rwidth=800
                pwidth=im.size[0]
                pheight=im.size[1]
                rate = int(pwidth/pheight)
                if rate==0:
                    rate=1
                nwidth=800
                nheight=800
                if (pwidth>rwidth):
                    nwidth=rwidth
                    nheight=nwidth /rate
                else:
                    nwidth=pwidth
                    nheight=pheight
                if (pheight>rheight):
                    nheight=rheight
                    nwidth=rheight*rate
                else:
                    nwidth=pwidth
                    nheight=pheight
                kzname=im.format
                
                if kzname not in ["mp4","mov","avi","3gp","3gp2","wav","rm","mpg","asf","mid"]:
                    im.thumbnail((nwidth,nheight),Image.ANTIALIAS)
                    #logo水印
                    
                    if nwidth/2>130:
                        wm = Image.open(nowpath+"/media/logo.png")
                        layer = Image.new('RGBA', im.size, (0,0,0,0))
                        layer.paste(wm, (im.size[0] - 120, im.size[1] - 50))
                        im = Image.composite(layer, im, layer)
                    #加字体水印
                    fontPath=nowpath+'/media/SIMHEI.TTF'
                    fontSize=18
                    font = ImageFont.truetype(fontPath,fontSize)
                    draw = ImageDraw.Draw(im)
                    if nwidth/2>130:
                        draw.text((nwidth/2-60,nheight/2-25),u'www.zz91.com',(0,0,0),font=font)
                        draw.text((nwidth/2-70,nheight/2),unicode('ZZ91再生网专用','utf-8'),(0,0,0),font=font) 
                    del draw
                
                tmp = random.randint(100, 999)
                newpath="/mnt/data/resources/other/"+timepath
                imgpath=newpath+str(nowtime)+str(tmp)+"."+kzname
                databasepath="other/"+timepath+str(nowtime)+str(tmp)+"."+kzname
                if not os.path.isdir(newpath):
                    os.makedirs(newpath)
                im.save(imgpath,kzname,quality = 80)
                mstream.closed
                tempim.closed
                #picurl="http://img4.zz91.com/300x15000/other/"+timepath+str(nowtime)+str(tmp)+"."+kzname
                picurl="http://"+hostname+"img.zz91.com/other/"+timepath+str(nowtime)+str(tmp)+"."+kzname
                #picurl="http://images.zz91.com/images.php?width=300&height=15000&picurl=http://img1.zz91.com/other/"+timepath+str(nowtime)+str(tmp)+"."+kzname
            picid=0
            if source=="products":
                sql="insert into products_pic(product_id,pic_address,gmt_created) values(0,%s,%s)"
                result=dbc.updatetodb(sql,[databasepath,gmt_created])
                if result:
                    picid=result[0]
                # 发布与修改产品时,存入产品图片到产品相册
                if company_id:
                    sql = "insert into photo_abum(company_id,album_id,is_mark,pic_address,gmt_created," \
                          "gmt_modified) values(%s,%s,%s,%s,%s,%s)"
                    dbc.updatetodb(sql, [company_id, 5, 1, databasepath, gmt_created, gmt_created])
            else:
                sql="insert into other_piclist(path,source,gmt_created) values(%s,%s,%s)"
                result=dbc.updatetodb(sql,[databasepath,source,gmt_created])
                if result:
                    picid=result[0]
                # 手机端发布话题与修改头像,存入互助图片到产品相册
                if company_id:
                    sql = "insert into photo_abum(company_id,album_id,is_mark,pic_address,gmt_created," \
                          "gmt_modified) values(%s,%s,%s,%s,%s,%s)"
                    dbc.updatetodb(sql, [company_id, 6, 1, databasepath, gmt_created, gmt_created])

            list={'path':picurl,'id':picid,'databasepath':databasepath,'mediatype':mediatype}
            listall.append(list)
        return listall
    return None