/// <summary>
/// 加载用户图片数据返回
/// </summary>
/// <param name="context"></param>
/// <param name="loadCount"></param>
/// <param name="loadSize"></param>
/// <param name="user"></param>
private void LoadUserPicture(HttpContext context, int loadCount, int loadSize, User user)
{
//取数据
Picture.BLL.PictureInfoBLL bllPicture = new Picture.BLL.PictureInfoBLL();
var list = bllPicture.QueryList(loadCount + 1, loadSize, new { UId = user.UId }, "UploadDate").Select(p => new { imgUrl = CommonHelper.GetSmallImgPath(p.LargeImgPath), uploadDate = p.UploadDate, collectCount = p.CollectCount, pId = p.PId, width = p.Width, height = p.Height });
//返回数据
System.Web.Script.Serialization.JavaScriptSerializer jss = new System.Web.Script.Serialization.JavaScriptSerializer();
context.Response.Write(jss.Serialize(list));
}
public void ProcessRequest(HttpContext context)
{
/*
* 与前端的规定
* 1 未登入
* 2 该用户没有这张图片
* 3 数据库问题,图片未删除
*
*/
context.Response.ContentType = "text/plain";
int pId = int.Parse(context.Request["pId"]);
User user = context.Session["current_user"] as User;
//校验是否登入
if (user == null)
{
DeletePictureError(context, 1);
return;
}
Picture.BLL.PictureInfoBLL picturebll = new Picture.BLL.PictureInfoBLL();
//校验该用户是否有这张图片
Picture.Model.PictureInfoModel picture=picturebll.QuerySingle(new { PId = pId, __o = "and", UId = user.UId });
if ( picture==null)
{
DeletePictureError(context, 2);
return;
}
//删除图片表图片
if (picturebll.Delete(pId) <= 0)
{
DeletePictureError(context, 3);
return;
}
else
{
//大图路径
string picPath = context.Request.MapPath(picture.LargeImgPath);
//小图路径
string smallPath = context.Request.MapPath(CommonHelper.GetSmallImgPath(picture.LargeImgPath));
if (File.Exists(picPath))
{
File.Delete(picPath);
}
if (File.Exists(smallPath))
{
File.Delete(smallPath);
}
}
context.Response.Write(JSONHelper.ToJSONString(new { isDelete = true }));
}
public void ProcessRequest(HttpContext context)
{
/*
* 约定
* 1 用户未登入
* 2 图片不存在
* 3 在点击收藏情况下,图片已收藏
* 4 在删除收藏的情况下,图片已删除收藏
* 5 未知错误: 图片更新后返回的影响条数不为1
*
*/
context.Response.ContentType = "text/plain";
int pId = int.Parse(context.Request["pId"]);
bool isCollect = bool.Parse(context.Request["isCollect"]);
//用户登入校验
User user = context.Session["current_user"] as User;
if (user == null)
{
CollectError(context, 1);
return;
}
Picture.BLL.PictureCollectBLL collectBll = new Picture.BLL.PictureCollectBLL();
Picture.BLL.PictureInfoBLL pictureBll = new Picture.BLL.PictureInfoBLL();
if (!isCollect)
{
//收藏
//先看图片是否存在
var pic = pictureBll.QuerySingle(new { PId = pId });
if (pic==null)
{
CollectError(context, 2);
return;
}
//是否已经收藏了
int cCount = collectBll.QueryCount(new
{
PId = pId,
__o = "and",
CuId = user.UId
});
if (cCount > 0)
{
CollectError(context, 3);
return;
}
//用户已登入,图片存在,图片未收藏
//添加收藏
collectBll.Insert(new Picture.Model.PictureCollectModel()
{
CollectDate = DateTime.Now,
CuId = user.UId,
PId = pId
});
pic.CollectCount++;
//修改图片数据
if (pictureBll.Update(pic)!=1)
{
CollectError(context, 5);
return;
}
}
else
{
//取消收藏
//图片是否存在
var pic = pictureBll.QuerySingle(new { PId = pId });
if (pic == null)
{
CollectError(context, 2);
return;
}
//是否已经收藏了
var collect = collectBll.QuerySingle(new
{
PId=pId,
__o="and",
CuId=user.UId
});
//如果已经取消收藏了
if (collect==null)
{
CollectError(context, 4);
return;
}
//用户已登入,图片存在,图片已收藏
//删除收藏
collectBll.Delete(collect.CId);
//修改图片数据
pic.CollectCount--;
if (pictureBll.Update(pic) != 1)
{
CollectError(context, 5);
return;
}
}
//添加/删除收藏成功
context.Response.Write(JSONHelper.ToJSONString(new
{
isCollect = true
}));
}
public void ProcessRequest(HttpContext context)
{
//并不知道如何用参数获得文件只能用索引的方式，反正就一张图
context.Response.ContentType = "text/plain";
var file = context.Request.Files[0];
string tags = context.Request["tags"];
string pictreSummary = context.Server.HtmlEncode(context.Request["summary"]);
List<String> Tags = new List<String>();
foreach (var item in tags.Split(new char[] { ',' }))
{
Tags.Add(item.Trim());
}
//去除重复的标签
HashSet<string> hsTag = new HashSet<string>(Tags);
#region 用户登入校验
if (context.Session["current_user"] == null)
{
PictureUploadError(context, 1);
return;
}
User user = context.Session["current_user"] as User;
#endregion
#region 用户是否被禁止上传图片
if (user.UserStatus == 1)
{
PictureUploadError(context, 4);
return;
}
#endregion
#region 文件类型校验
string fileName = file.FileName;
string extName = Path.GetExtension(fileName);
if (!(extName == ".jpeg" || extName == ".jpg" || extName == ".bmp" || extName == ".png" || extName == ".gif"))
{
PictureUploadError(context, 2);
return;
}
#endregion
#region 文件大小校验
if (file.ContentLength > IMAGE_SIZE_LIMIT)
{
PictureUploadError(context, 3);
return;
}
#endregion
#region 保存文件
#region 保存到磁盘
//大小图所在的文件夹的相对路径
string bigRelativePathDir = BIG_IMAGE_SAVE_PATH + DateTime.Now.ToString("yyyyMMdd");
string smallRelativePathDir = BIG_IMAGE_SAVE_PATH + "SmallImg_" + DateTime.Now.ToString("yyyyMMdd");
//大,小图所在的文件夹绝对路径
string bigPathDir = context.Request.MapPath("../" + bigRelativePathDir);
string smallPathDir = context.Request.MapPath("../" + smallRelativePathDir);
//创建文件夹
if (!Directory.Exists(bigPathDir))
{
Directory.CreateDirectory(bigPathDir);
Directory.CreateDirectory(smallPathDir);
}
//算出文件的MD5
string fileMD5Name = GetMD5FromFile(file.InputStream);
string fileExt = Path.GetExtension(file.FileName);
//大,小图所在的相对路径
string bigImgRelativePath = bigRelativePathDir + "/" + fileMD5Name + fileExt;
string smallImgRelativePath = smallRelativePathDir + "/" + "small_" + fileMD5Name + ".jpg";
//大,小图所在的绝对路径
string bigImgPath = context.Request.MapPath("../" + bigImgRelativePath);
string smallImgPath = context.Request.MapPath("../" + smallImgRelativePath);
//保存
file.SaveAs(bigImgPath);
PictureProcessHelper.MakeThumbnail(bigImgPath, smallImgPath, 400, 0, "W");
#endregion
#region 保存到数据库
#region 获取标签对象,判断标签是否已经存在了，不存在则创建
Picture.BLL.TagBLL tagBll = new Picture.BLL.TagBLL();
List<Picture.Model.TagModel> tagModelList = new List<Picture.Model.TagModel>();
Picture.Model.TagModel tempModel = null;
foreach (var item in hsTag)
{
tempModel = tagBll.QuerySingle(new { TagName = item });
if (tempModel == null)
{
int tagId = tagBll.Insert(new Picture.Model.TagModel()
{
TagName = item
});
tagModelList.Add(new Picture.Model.TagModel()
{
TagName = item,
TId = tagId
});
}
else
{
tagModelList.Add(tempModel);
}
tempModel = null;
}
#endregion
#region 更新索引
foreach (var item in tagModelList)
{
IndexManager.tagIndex.Add(item);
}
#endregion
#region 保存图片
Picture.BLL.PictureInfoBLL pictureBll = new Picture.BLL.PictureInfoBLL();
int width = 0;
int height = 0;
PictureProcessHelper.GetPictureShap(bigImgPath, out width, out height);
Picture.Model.PictureInfoModel model = new Picture.Model.PictureInfoModel()
{
CollectCount = 0,
Height = height,
Width = width,
ImgSummary = pictreSummary,
LargeImgPath = bigImgRelativePath,
UId = user.UId,
UploadDate = DateTime.Now
};
int pId = pictureBll.Insert(model);
#endregion
#region 保存图片与标签的关系
Picture.BLL.TagImgRelationBLL bllTIR = new Picture.BLL.TagImgRelationBLL();
foreach (var item in tagModelList)
{
bllTIR.Insert(new Picture.Model.TagImgRelationModel()
{
ImgId = pId,
TagId = item.TId
});
}
#endregion
#endregion
#endregion
context.Response.Write(JSONHelper.ToJSONString(new { isUpload = true }));
}
protected void Page_Load(object sender, EventArgs e)
{
CurrentUser = Session["current_user"] as Model.User;
Picture.BLL.PictureInfoBLL bllPictureInfo = new Picture.BLL.PictureInfoBLL();
List = bllPictureInfo.QueryList(-1, 10, new { UId = CurrentUser.UId }, "UploadDate");
}