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      成功.NET將SQL SERVER二進(jìn)制轉(zhuǎn)換為文件

       北方天空A 2021-04-02

      public Boolean SaveFile( string AddMan)
              {
                  string strSQLconn = "Server=172.16.21.213;initial catalog=SRR_LZ;user id=sa;password=szzttz;Connect Timeout=500";//數(shù)據(jù)庫連接字符串
                  SqlConnection conn = new SqlConnection(strSQLconn);//聲明連接            
                  conn.Open();
                  SqlCommand com1 = conn.CreateCommand();
                  SqlTransaction tran1 = conn.BeginTransaction();
                  com1.Transaction = tran1;
                  try
                  {
                      string webRootPath = Directory.GetCurrentDirectory();//根目錄
                      string FileDir = webRootPath + "\\UploadFile\\";//pdf上傳目錄
                      string FilePath = "";//文件路徑
                      string FileName = "";//文件名稱
                      string id_fun = "";//存儲id字段
                      #region 獲取二進(jìn)制數(shù)據(jù)

                      string sqlStr = "select id,data,allcode from ART_data1.dbo.data_SinglegeneReprart where (convert(varchar(128),id) not in (select id from GeneTestResultss))";//數(shù)據(jù)庫的查詢語句
                      com1.CommandText = sqlStr;
                      com1.CommandTimeout = 60000;
                      SqlDataAdapter sda = new SqlDataAdapter(com1);
                      DataSet ds = new DataSet();
                      sda.Fill(ds, "data_SinglegeneReport");
                      DataTable myTable = ds.Tables["data_SinglegeneReport"];
                      for (int i = 0; i < myTable.Rows.Count; i++)
                      {
                          byte[] FileData = (byte[])myTable.Rows[i]["data"];// System.Text.Encoding.Default.GetBytes( myTable.Rows[0]["data"]);
                          id_fun = myTable.Rows[i]["id"] + "";//id字段
                              FileName = id_fun + ".pdf";
                          #endregion
                          #region 保存文件
                          if (!Directory.Exists(FileDir))
                          {
                              Directory.CreateDirectory(FileDir);
                          }
                          FilePath = Path.Combine(FileDir, FileName);
                          FileStream fs = new FileStream(FilePath, FileMode.Create);
                          fs.Write(FileData, 0, FileData.Length);
                          fs.Close();
                          #endregion
                      }
                      sda.Dispose();
                      #region 保存數(shù)據(jù)到基因檢測結(jié)果表
                      sqlStr = "insert into GeneTestResultss(id,EggDevelopementDisorderNumber,AddMan,AddTime,ReportingTime,PdfFilePath) select a.id,b.EggDevelopementDisorderNumber,'" + AddMan + "',a.jlsj,a.bgrq,'/UploadFile/' + convert(varchar,a.id) as PdfFilePath from ART_data1.dbo.data_SinglegeneReprart  a,SR_LZ.dbo.LZBase b where a.kh=b.CardNumber and (convert(varchar(128),a.id) not in (select id from SR_LZ.dbo.GeneTestResults))";
                      com1.CommandText = sqlStr;
                      com1.ExecuteNonQuery();
                      #endregion
                      tran1.Commit();
                      return true;
                  }
                  catch (Exception r)
                  {
                      tran1.Rollback();
                      return false;
                  }
                  finally
                  {
                      conn.Close();
                      conn.Dispose();
                  }
              }

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