#region 調(diào)用本地文件使用返回pdfbyte數(shù)組/// <summary>/// 調(diào)用本地文件使用返回pdfbyte數(shù)組/// </summary>/// <param name="srcPdfFile">‘D:\in2434341555551.pdf’</param>/// <returns></returns>public static Byte[] GetSignaturePDFByte(string srcPdfFile){using (FileStream fsRead = new FileStream(srcPdfFile, FileMode.Open, FileAccess.Read, FileShare.Read)){int fsLen = (int)fsRead.Length;byte[] hebyte = new byte[fsLen];fsRead.Read(hebyte, 0, hebyte.Length);return hebyte;}}#endregion 調(diào)用本地文件使用返回pdfbyte數(shù)組#region 從網(wǎng)站上下載pdf，轉(zhuǎn)化為字節(jié)流/// <summary>/// 從網(wǎng)站上下載pdf，轉(zhuǎn)化為字節(jié)流/// </summary>/// <param name="srcPdfFile">文件地址：'https://******/group2/M00/00/04/wKj-mlpcoZ2IUbK5AACrpaV6k98AAAB6gAAAAAAAKu9562.pdf'</param>/// <returns></returns>public static Byte[] GetByteByRemoteURL(string srcPdfFile){byte[] arraryByte;HttpWebRequest req = (HttpWebRequest)HttpWebRequest.Create(srcPdfFile);req.Method = "GET";using (WebResponse wr = req.GetResponse()){StreamReader responseStream = new StreamReader(wr.GetResponseStream(), Encoding.UTF8);int length = (int)wr.ContentLength;byte[] bs = new byte[length];HttpWebResponse response = wr as HttpWebResponse;Stream stream = response.GetResponseStream();//讀取到內(nèi)存MemoryStream stmMemory = new MemoryStream();byte[] buffer1 = new byte[length];int i;//將字節(jié)逐個(gè)放入到Byte 中while ((i = stream.Read(buffer1, 0, buffer1.Length)) > 0){stmMemory.Write(buffer1, 0, i);}arraryByte = stmMemory.ToArray();stmMemory.Close();}return arraryByte;}#endregion 從網(wǎng)站上下載pdf，轉(zhuǎn)化為字節(jié)流#region 從網(wǎng)站上下載文件，保存到其他路徑/// <summary>/// 從網(wǎng)站上下載文件，保存到其他路徑/// </summary>/// <param name="pdfFile">文件地址</param>/// <param name="saveLoadFile">保存文件路徑：D:\12221.pdf</param>/// <returns></returns>public static bool SaveRemoteFile(string pdfFile, string saveLoadFile){bool flag = false;Uri downUri = new Uri(pdfFile);//建立一個(gè)ＷＥＢ請(qǐng)求，返回HttpWebRequest對(duì)象HttpWebRequest hwr = (HttpWebRequest)WebRequest.Create(downUri);//流對(duì)象使用完后自動(dòng)關(guān)閉using (Stream stream = hwr.GetResponse().GetResponseStream()){//文件流，流信息讀到文件流中，讀完關(guān)閉using (FileStream fs = File.Create(saveLoadFile)){//建立字節(jié)組，并設(shè)置它的大小是多少字節(jié)byte[] bytes = new byte[102400];int n = 1;while (n > 0){//一次從流中讀多少字節(jié)，并把值賦給Ｎ，當(dāng)讀完后，Ｎ為０,并退出循環(huán)n = stream.Read(bytes, 0, 10240);fs.Write(bytes, 0, n);　//將指定字節(jié)的流信息寫入文件流中}}}return flag;}#endregion 從網(wǎng)站上下載文件，保存到其他路徑

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