private JObject GetAttachments(string FileID)
{
JObject rv = new JObject();
if (!String.IsNullOrEmpty(FileID))
{
string[] ids = FileID.Split(',', ';');
AttachmentCollection attachments;
using (IDbConnection cn = QueryManager.CurrentProvider.OpenConnection())
{
attachments = YZAttachmentHelper.GetAttachmentsInfo(cn, ids);
}
JArray ja = new JArray();
rv["files"] = ja;
foreach (Attachment item in attachments)
{
JObject jo = new JObject();
ja.Add(jo);
jo["name"] = item.Name;
string requestUrl = HttpContext.Current.Request.Url.ToString();
string RedirectURLBase = requestUrl.Substring(0, requestUrl.IndexOf("YZSoft", StringComparison.OrdinalIgnoreCase)) + "YZSoft.Services.REST/Attachment/download.ashx?" + item.FileID;
jo["DownloadUrl"] = RedirectURLBase;
}
}
return(rv);
}
public static Attachment GetAttachmentInfo(IDbConnection cn, string fileId)
{
if (String.IsNullOrEmpty(fileId))
{
throw new Exception(Resources.YZStrings.Aspx_Upload_EmptyFileID);
}
AttachmentCollection attachments = YZAttachmentHelper.GetAttachmentsInfo(cn, new string[] { fileId });
if (attachments.Count == 0)
{
throw new Exception(String.Format(Resources.YZStrings.Aspx_Upload_FileIDNotFount, fileId));
}
return(attachments[0]);
}
public void ProcessRequest(HttpContext context)
{
try
{
string idstr = context.Request.Params["fileids"];
JsonItem rv = new JsonItem();
rv.Attributes.Add("success", true);
JsonItemCollection files = new JsonItemCollection();
rv.Attributes["files"] = files;
if (String.IsNullOrEmpty(idstr))
{
context.Response.Write(rv.ToString());
return;
}
string[] ids = idstr.Split(',', ';');
AttachmentCollection attachments;
using (IDbConnection cn = QueryManager.CurrentProvider.OpenConnection())
{
attachments = YZAttachmentHelper.GetAttachmentsInfo(cn, ids);
}
foreach (Attachment attachment in attachments)
{
JsonItem file = new JsonItem();
files.Add(file);
file.Attributes["attachment"] = attachment.FileID;
file.Attributes["name"] = attachment.Name;
file.Attributes["type"] = attachment.Ext;
file.Attributes["size"] = attachment.Size;
string requestUrl = HttpContext.Current.Request.Url.ToString();
string RedirectURLBase = requestUrl.Substring(0, requestUrl.IndexOf("Attachment", StringComparison.OrdinalIgnoreCase))
+ "Attachment/download.ashx?FileID=" + attachment.FileID;
file.Attributes["DownloadUrl"] = RedirectURLBase;
}
context.Response.AppendHeader("Access-Control-Allow-Origin", "*"); // 响应类型
context.Response.AppendHeader("Access-Control-Allow-Methods", "POST"); // 响应头设置
context.Response.AppendHeader("Access-Control-Allow-Headers", "x-requested-with,content-type");
context.Response.Charset = "gb2312"; //设置字符集类型
context.Response.ContentEncoding = System.Text.Encoding.GetEncoding("gb2312");
context.Response.ContentType = "application/json;charset=gb2312";
// if (attachments.Count > 0)
context.Response.Write(rv.ToString());
}
catch (Exception ex)
{
JsonItem rv = new JsonItem();
rv.Attributes.Add("success", false);
rv.Attributes.Add("errorMessage", JosonMobile.Msg_ALL_FileNoExist + ex.Message);
context.Response.Write(rv.ToString());
}
}
