public void DownLoadSoundingImg()
{
DateTime dt = DateTime.Now.Hour - 12 > 0 ? DateTime.Now : DateTime.Now.AddDays(-1);;
string year = dt.Year.ToString();
string month = dt.Month.ToString();
string date = dt.Day.ToString();
string state = dt.Hour - 12 > 0 ? "00" : "12";
string targetUrl = "http://weather.uwyo.edu/cgi-bin/sounding?region=seasia&TYPE=GIF%3ASKEWT&YEAR=" + year
+ "&MONTH=" + month + "&FROM=" + date + state + "&TO=" + date + state + "&STNM=53772";
string html = GetPage(targetUrl);
string strdate = dt.ToString("yyyyMMdd") + state;
//网页路径
string webpath = "http://weather.uwyo.edu/upperair/bimages/" + strdate + ".53772.skewt.parc.gif";
string fileName = dt.ToString("yyyyMMddHHmm") + ".GIF";
string locationUrl = ConfigurationManager.AppSettings["fullpath"] + "SoundingImg\\" + fileName; //保存到本地路径
DateTime CurrTime = Convert.ToDateTime(dt.ToString("yyyy-MM-dd") + " " + state + ":00"); //文件时间
string relativePath = "SoundingImg\\" + fileName; //文件相对路径
T_Moni_ImgFiles img = new T_Moni_ImgFiles();
img.FileName = fileName;
img.FullFileName = relativePath;
img.Cate = 7;
img.CreatedTime = DateTime.Now;
img.FileDate = CurrTime;
ImgAcp(webpath, locationUrl, img);
}
/// <summary>
/// 图片采集
/// </summary>
private void ImgAcp(string imgUrl, string localpath, T_Moni_ImgFiles imgfile)
{
if (GetUrlError(imgUrl) != 200)
{
writelog("图片未找到：" + imgUrl);
return;
}
WebRequest request = WebRequest.Create(imgUrl);
WebResponse response = null;
try
{
response = request.GetResponse();
request.Timeout = 5 * 60 * 1000;
ImageFormat f = ImageFormat.Gif;
string fileext = imgUrl.Substring(imgUrl.LastIndexOf('.'));
if (fileext.ToUpper() == ".JPG")
{
f = ImageFormat.Jpeg;
}
else if (fileext.ToUpper() == ".PNG")
{
f = f = ImageFormat.Png;
}
else if (fileext.ToUpper() == ".BMP")
{
f = ImageFormat.Bmp;
}
Stream resStream = response.GetResponseStream();
FileInfo fi = new FileInfo(localpath);
//如果存在文件则先干掉
if (!fi.Exists)
{
System.Drawing.Image img;
img = System.Drawing.Image.FromStream(resStream);
img.Save(localpath, f);
resStream.Close();
string ConnectionString = ConfigurationManager.ConnectionStrings["DB"].ConnectionString;
SqlConnection conn = new SqlConnection(ConnectionString);
conn.Open();
string sql = "insert into T_Mid_ImgFiles(FileName,Cate,FileDate,FullFileName,CreatedTime) values('" + imgfile.FileName + "'," + imgfile.Cate + ",'" + imgfile.FileDate + "','" + imgfile.FullFileName + "','" + imgfile.CreatedTime + "')";
SqlCommand cmd = new SqlCommand(sql, conn);
cmd.ExecuteNonQuery();
conn.Close();
//EntityHelper.Add<T_Moni_ImgFiles>(imgfile);
}
writelog("图片同步成功：" + localpath);
}
catch (Exception ex)
{
writelog("图片同步出错：" + ex.Message.ToString() + ">>" + imgUrl);
}
finally
{
response.Close();
response.Dispose();
}
}