void DownloadNext()
{
PostInfo pi = this.projects[0].PostList[0];
//存数据库
this.SaveTitle2DB(pi);
while (this.projects[0].ExitsFileUrl.Contains(pi.FileList[0]) && pi.FileList.Count > 0)
{
pi.FileList.Remove(pi.FileList[0]);
}
KFileInfo kfi = new KFileInfo();
kfi.PostId = pi.PostId;
kfi.Url = pi.FileList[0];
Uri fileUri = new Uri(kfi.Url);
string savePath = Path.Combine(
string.Format("{0}_{1}", pi.PostId, pi.Title),
string.Format("{0}_{1}.{2}", fileUri.LocalPath, Guid.NewGuid())
);
string saveName = Path.Combine(
this.saveFolder,
savePath
);
this.wc.DownloadFileAsync(fileUri, saveName, kfi);
}
/// <summary>
/// 方案1:直接保存数据库,以后下载
/// </summary>
internal void SaveData()
{
this.PostFetchInfoChanged("开始整理", "开始整理", "", null);
int postId = -1;
this.fileList = new Dictionary<string, KFileInfo>();
KFileInfo fi;
SQLiteConnection conn = new SQLiteConnection(DbHelper.ConnectionString);
//conn.ConnectionString = Program.configPath;
conn.Open();
using (SQLiteTransaction trans = conn.BeginTransaction())
{
#region 循环所有post及其下面的file,写入数据库
foreach (PostInfo pi in this.projects[0].PostList)
{
//存入当前Post到数据库
//插入Posts表, 返回postId
SaveTitle2DB(pi);
if (pi.PostId < 1)
{
string message = string.Format("插入Post失败:{0},跳过当前Post文件列表!!!" + pi.Url);
this.PostFetchInfoChanged("插入Post失败", message, "", null);
continue;
}
//循环当前Post下的所有文件
foreach (string url in pi.FileList)
{
fi = new KFileInfo();
#region 插入Files表,返回fileId
if (this.fileList.ContainsKey(url))
{
string message = string.Format("存在的Url :{0}", url);
this.PostFetchInfoChanged("已存在的文件", message, "", null);
fi.Id = this.fileList[url].Id;
}
else
{
string sqlFile = "INSERT INTO files(`url`) VALUES(@url);select last_insert_rowid()";
DbParameter[] pramsFile =
{
DbHelper.MakeInParam("@url", DbType.String, 500,url)
};
try
{
fi.Id = Convert.ToInt32(
DbHelper.ExecuteScalar(
trans,
CommandType.Text,
sqlFile,
pramsFile
)
);
this.fileList.Add(url, fi);
}
catch (Exception ex)
{
fi.Id = -1;
}
}
#endregion
#region 插入File2Post表
try
{
if (fi.Id > 0)
{
string sqlFile2Post = string.Format(
"INSERT INTO file2post(`postid`,`fileid`) VALUES({0},{1})",
postId,
fi.Id
);
DbHelper.ExecuteNonQuery(
trans,
CommandType.Text,
sqlFile2Post
);
}
else
{
this.PostFetchInfoChanged("插入文件失败", "插入文件失败:" + url, "", null);
}
}
catch (Exception ex)
{
if (this.SaveDataComplted != null)
{
this.SaveDataComplted(
this,
new FetchPostsAndFilesCompletedEventArgs(this.projects, ex, false, null)
);
}
}
#endregion
}
}
#endregion
trans.Commit();
}
conn.Close();
if (this.SaveDataComplted != null)
{
this.SaveDataComplted(
this,
new FetchPostsAndFilesCompletedEventArgs(this.projects, null, false, null)
);
}
}
