核心代码(获取HTML):
#region 根据URL地址获取信息GET public static String GetResult(string url) { return GetResult(url, Encoding.Default); } #endregion #region 根据URL地址获取对应编码信息 public static String GetResult(string url, Encoding encoding) { try { var webRequest = (HttpWebRequest)WebRequest.Create(url); //获取响应结果 var webResponse = (HttpWebResponse)webRequest.GetResponse(); //获取响应流 Stream stream = webResponse.GetResponseStream(); using (StreamReader streamReader = new StreamReader(stream, encoding)) { string result = String.Empty; result = streamReader.ReadToEnd(); streamReader.Close(); webResponse.Close(); webRequest.Abort(); return result; } } catch (Exception ex) { return "-1"; //return ex.Message.Length > 100 ? ex.Message.Substring(0, 100) : ex.Message; } } #endregion
方法调用:
string strUrl = @"http://192.168.0.155:8181/"; //获取HTML的地址
string strTemp = GetResult(strUrl, System.Text.Encoding.GetEncoding("utf-8"));
if (!strTemp.Equals("-1"))
{
strTemp = strTemp.Substring(strTemp.IndexOf("<!--begin-->"));
strTemp = strTemp.Substring(0, strTemp.IndexOf("<!--end-->"));
}
return strTemp;
核心代码(下载图片):
public static void getimages(string url) { //创建一个request 同时可以配置requst其余属性 System.Net.WebRequest imgRequst = System.Net.WebRequest.Create(url); //在这里我是以流的方式保存图片 System.Drawing.Image downImage = System.Drawing.Image.FromStream(imgRequst.GetResponse().GetResponseStream()); string dertory = string.Format(@"D:\imgfg.cn\5r\{0}\", DateTime.Now.ToString("yyyy-MM-dd")); string fileName = string.Format("{0}.jpg", DateTime.Now.ToString("HHmmssffff")); if (!System.IO.Directory.Exists(dertory)) { System.IO.Directory.CreateDirectory(dertory); } downImage.Save(dertory + fileName); downImage.Dispose(); //用完一定要释放 }
方法调用:
string strUrl = @"https://www.baidu.com/img/bd_logo1.png?qua=high&where=super"; //网络图片或者本地图片地址
getimages(strUrl);
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