【1】手机端和服务器端简单的数据同步
/// <summary> /// 首先传参数（strImei,strCode）到服务器然后，下载LocalAllCategory.Xml到手机端-------方法 /// </summary> /// <param name="URL">服务器URL地址</param> /// <param name="Filename">存放到本地的路径</param> /// <param name="strSortName">类别名称</param> /// <param name="strRightMark">权限码</param> public static void DownAllCategory(string URL, string Filename, string strImei, string strCode) { //向服务器传参数 string postData = strImei+"&"+strCode; byte[] bytes = Encoding.UTF7.GetBytes(postData); //注意中文参数需要UTF7编码方式 HttpWebRequest Myrq = (HttpWebRequest)WebRequest.Create(URL); Myrq.Method = "POST"; Myrq.ContentLength = bytes.Length; Myrq.ContentType = "application/x-www-form-urlencoded"; try { using (Stream requestStream = Myrq.GetRequestStream()) { requestStream.Write(bytes, 0, bytes.Length); requestStream.Close(); } //下载文件开始 HttpWebResponse myrp = (HttpWebResponse)Myrq.GetResponse(); long totalBytes = myrp.ContentLength; //Prog.Maximum = (int)totalBytes; Stream st = myrp.GetResponseStream(); Stream so = new FileStream(Filename, FileMode.Create); long totalDownloadedByte = 0; byte[] by = new byte[1024]; int osize = st.Read(by, 0, (int)by.Length); while (osize > 0) { totalDownloadedByte = osize + totalDownloadedByte; Application.DoEvents(); so.Write(by, 0, osize); //Prog.Value = (int)totalDownloadedByte; osize = st.Read(by, 0, (int)by.Length); } so.Close(); st.Close(); //下载文件结束 }
catch (Exception ex) { MessageBox.Show(ex.Message, "提示", MessageBoxButtons.OK, MessageBoxIcon.Asterisk, MessageBoxDefaultButton.Button1); }
}
【2】下载文件【Http通信】
/// <summary> /// 下载方法(带进度条) /// </summary> /// <param name="URL">服务器URL地址</param> /// <param name="Filename">存放到本地的路径</param> /// <param name="Prog">进度条</param> public string DownCategoryFile(string URL, string Filename, ProgressBar Prog) { try { HttpWebRequest Myrq = (HttpWebRequest)HttpWebRequest.Create(URL);
HttpWebResponse myrp = (HttpWebResponse)Myrq.GetResponse(); long totalBytes = myrp.ContentLength; Prog.Maximum = (int)totalBytes; Stream st = myrp.GetResponseStream(); Stream so = new FileStream(Filename, FileMode.Create); long totalDownloadedByte = 0; byte[] by = new byte[1024]; int osize = st.Read(by, 0, (int)by.Length); while (osize > 0) { totalDownloadedByte = osize + totalDownloadedByte; Application.DoEvents(); so.Write(by, 0, osize); Prog.Value = (int)totalDownloadedByte; osize = st.Read(by, 0, (int)by.Length); } so.Close(); st.Close(); return "下载成功"; //MessageBox.Show("更新完毕!", "提示：", MessageBoxButtons.OK, MessageBoxIcon.Asterisk, MessageBoxDefaultButton.Button1); } catch { return "下载失败"; }
}
【3】发送数据到服务器端的方法
/// <summary> /// 发送数据到服务器端的方法 /// </summary> /// <param name="url">服务器路径</param> /// <param name="xml">参数的值</param> public string PostXml(string url, string strImei,string strCode) { string postData =strImei+"&"+strCode; byte[] bytes = Encoding.UTF8.GetBytes(postData); HttpWebRequest request = (HttpWebRequest)WebRequest.Create(url); request.Method = "POST"; request.ContentLength = bytes.Length; request.ContentType = "application/x-www-form-urlencoded"; try { using (Stream requestStream = request.GetRequestStream()) { requestStream.Write(bytes, 0, bytes.Length); requestStream.Close();
//响应请求 HttpWebResponse response =(HttpWebResponse)request.GetResponse(); StreamReader reader = new StreamReader(response.GetResponseStream(), Encoding.UTF8); content = reader.ReadLine(); return content; //MessageBox.Show(content,"提示：",MessageBoxButtons.OK,MessageBoxIcon.Asterisk,MessageBoxDefaultButton.Button1); } } catch { return "失败"; //MessageBox.Show(ex.Message,"提示",MessageBoxButtons.OK,MessageBoxIcon.Asterisk,MessageBoxDefaultButton.Button1); } }
转载于:https://www.cnblogs.com/hxycn/archive/2009/11/02/1594336.html
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