c#，ArcEngine，将csv转为shp，程序会泄露内存

qq_22260953 2016-01-05 06:33:49

小弟接触AE不久，程序有什么不专业的地方还请赐教!

目前想将csv文件转成shp文件，首先我在arccatalog里面创建了一个空的shp文件，在每次csv转shp的时候就复制这个空的shp文件到另一个地方，然后用featureclass.createfeature()方法创建点要素，在此之前先将csv中的数据读到一个泛型List<CPoint>里面，CPoint是我自己创建的结构体，用来存gps数据的每个字段的内容。

但是问题是，随着程序的运行，内存占用越来越大，最后就崩了，很苦恼，求各位赐教！谢谢

主体运算程序（button28_Click()），用到的函数的程序（GetPoints()），结构体创建程序（CPoint）如下：



private void button28_Click(object sender, EventArgs e)

{

      string Inputfilepath = @"";

      string Outputfilepath = @"";

      string fielName_NoExt = "";

      string filename1 = "", filename2 = "", filename3 = "", filename4 = "", newFilename = "", temp = "";

      int count_NoData = 0;



      IWorkspaceFactory pWSF_In = new ShapefileWorkspaceFactory();

      IFeatureWorkspace pFWS_In = (IFeatureWorkspace)pWSF_In.OpenFromFile(Inputfilepath, 0);

      IWorkspaceFactory pWSF_Out = new ShapefileWorkspaceFactory();

      IWorkspaceFactoryLockControl ipWsFactoryLock = (IWorkspaceFactoryLockControl)pWSF_Out; 

      if (ipWsFactoryLock.SchemaLockingEnabled)

      {      

          ipWsFactoryLock.DisableSchemaLocking();  

      }

      IFeatureWorkspace pFWS_Out = (IFeatureWorkspace)pWSF_Out.OpenFromFile(Outputfilepath, 0);

      IWorkspaceEdit iWorkSpaEdit = pFWS_Out as IWorkspaceEdit;



      List<CPoint> CSVList = new List<CPoint>();

      //遍历根文件夹下的每个子文件夹

      DirectoryInfo RootFolder = new DirectoryInfo(Inputfilepath);

      DirectoryInfo[] allDir = RootFolder.GetDirectories();

      foreach (DirectoryInfo EachDirectory in allDir)

      {

          //获取并设置我想要的文件名

          filename1 = EachDirectory.Name.Substring(0, EachDirectory.Name.IndexOf("_"));

          filename2 = EachDirectory.Name.Substring(EachDirectory.Name.IndexOf("_") + 1);

          filename3 = filename2.Substring(0, filename2.IndexOf("~"));

          filename4 = filename2.Substring(filename2.IndexOf("~") + 1);

          newFilename = "";

          if ((int.Parse(filename4.Substring(10, 2)) + 1) < 10)

          {

              temp = "0" + (int.Parse(filename4.Substring(10, 2)) + 1).ToString();

              newFilename = filename1 + "_" + filename3.Substring(0, 8) + "_" + filename3.Substring(8, 4) + "_" +

              filename4.Substring(8, 2) + temp;        //  BaoAnDaDaoS_20150505_0605_0610

          }

          else

          {

              temp = (int.Parse(filename4.Substring(10, 2)) + 1).ToString();

          }

          newFilename = filename1 + "_" + filename3.Substring(0, 8) + "_" + filename3.Substring(8, 4) + "_" +

              filename4.Substring(8, 2) + temp;        //  BaoAnDaDaoS_20150505_0605_0610

         //遍历每个子文件夹下面的每个csv文件

         FileInfo[] Files = EachDirectory.GetFiles("*.csv");

         foreach (FileInfo EachCSV in Files)

         {

              fielName_NoExt = EachCSV.Name.Substring(0, EachCSV.Name.IndexOf("."));

              //获取该csv文件中所有点信息

              CSVList.Clear();

              CSVList = GetPoints(Inputfilepath + @"\" + EachDirectory.Name + @"\" + newFilename + ".csv");

              //如果是空文件，则进行下一个csv文件

              if (CSVList.Count == 0 || CSVList.Count == -1)

              {

                  count_NoData++;

                  GC.Collect();

                  continue;

              }

              //复制模板shp文件

              File.Copy(@"E:\templet_SHP" + @"\Model_Shapefile.shp", Outputfilepath + @"\" + fielName_NoExt + ".shp", true);

              File.Copy(@"E:\templet_SHP" + @"\Model_Shapefile.dbf", Outputfilepath + @"\" + fielName_NoExt + ".dbf", true);

              File.Copy(@"E:\templet_SHP" + @"\Model_Shapefile.prj", Outputfilepath + @"\" + fielName_NoExt + ".prj", true);

              File.Copy(@"E:\templet_SHP" + @"\Model_Shapefile.shx", Outputfilepath + @"\" + fielName_NoExt + ".shx", true);

              //获取要素类

              IFeatureClass pFeatureClass = pFWS_Out.OpenFeatureClass(fielName_NoExt + ".shp");

              ESRI.ArcGIS.Geometry.IPoint pPoint = new ESRI.ArcGIS.Geometry.PointClass();

              iWorkSpaEdit.StartEditing(false);

              iWorkSpaEdit.StartEditOperation();

              for (int j = 0; j < CSVList.Count; j++)

              {

                  pPoint.X = double.Parse(CSVList[j].lon);

                  pPoint.Y = double.Parse(CSVList[j].lat);

                  //创建新要素pFeature 

                  IFeature pFeature = pFeatureClass.CreateFeature();

                  pFeature.Shape = pPoint;



                 //给pFeature赋值，每个字段赋值一次

                 pFeature.set_Value(2, CSVList[j].GPSseq);

                 pFeature.set_Value(3, CSVList[j].dist);

                 pFeature.set_Value(4, CSVList[j].timespan);

                 pFeature.set_Value(5, CSVList[j].spe);

                 pFeature.set_Value(6, CSVList[j].control);

                 pFeature.set_Value(7, CSVList[j].device_ID);

                 pFeature.set_Value(8, CSVList[j].bus_ID);

                 pFeature.set_Value(9, CSVList[j].line_ID);

                 pFeature.set_Value(10, CSVList[j].subline_ID);

                 pFeature.set_Value(11, CSVList[j].corp);

                 pFeature.set_Value(12, CSVList[j].status);

                 pFeature.set_Value(13, CSVList[j].lon);

                 pFeature.set_Value(14, CSVList[j].lat);

                 pFeature.set_Value(15, CSVList[j].height);

                 pFeature.set_Value(16, CSVList[j].time);

                 pFeature.set_Value(17, CSVList[j].speed);

                 pFeature.set_Value(18, CSVList[j].direction);

                 pFeature.set_Value(19, CSVList[j].record_spe);

                 pFeature.set_Value(20, CSVList[j].record_km);

                 pFeature.set_Value(21, CSVList[j].stop_ID);

                 pFeature.set_Value(22, CSVList[j].arrivetime);

                 pFeature.set_Value(23, CSVList[j].departtime);

                 pFeature.set_Value(24, CSVList[j].nextstop_ID);



                 pFeature.Store();

                 Marshal.ReleaseComObject(pFeature);

             }

             iWorkSpaEdit.StopEditOperation();

             iWorkSpaEdit.StopEditing(true);

             GC.Collect();

         }

     }

     MessageBox.Show("csv2shp完成" + @"\n" + "总共有：" + count_NoData.ToString() + "个空文件");

}



            public struct CPoint

            {

                public string GPSseq;

                public string dist;

                public string timespan;

                public string spe;

                public string control;

                public string device_ID;

                public string bus_ID;

                public string line_ID;

                public string subline_ID;

                public string corp;

                public string status;

                public string lon;

                public string lat;

                public string height;

                public string time;

                public string speed;

                public string direction;

                public string record_spe;

                public string record_km;

                public string stop_ID;

                public string arrivetime;

                public string departtime;

                public string nextstop_ID;

            }



            private List<CPoint> GetPoints(string surveyDataFullName)

            {

                bool IsFirst = true;

                List<CPoint> pList = new List<CPoint>();

                char[] charArray = new char[] { ',' };

                System.IO.FileStream FS = new System.IO.FileStream(surveyDataFullName, FileMode.Open, FileAccess.Read);

                StreamReader sr = new StreamReader(FS, Encoding.Default);

                string strLine = sr.ReadLine();

                while (strLine != null)

             {

                //判断是不是第一行，字段名称行，是的话跳过

                if (IsFirst == true)

                {

                    IsFirst = false;

                    strLine = sr.ReadLine();

                    continue;

                }

                string[] strArray = strLine.Split(charArray);

                //点信息的获取

                strArray = strLine.Split(charArray);

                CPoint pCPoint = new CPoint();

                pCPoint.GPSseq = strArray[0];

                pCPoint.dist = strArray[1];

                pCPoint.timespan = strArray[2];

                pCPoint.spe = strArray[3];

                pCPoint.control = strArray[4];

                pCPoint.device_ID = strArray[5];

                pCPoint.bus_ID = strArray[6];

                pCPoint.line_ID = strArray[7];

                pCPoint.subline_ID = strArray[8];

                pCPoint.corp = strArray[9];

                pCPoint.status = strArray[10];

                pCPoint.lon = strArray[11];

                pCPoint.lat = strArray[12];

                pCPoint.height = strArray[13];

                pCPoint.time = strArray[14];

                pCPoint.speed = strArray[15];

                pCPoint.direction = strArray[16];

                pCPoint.record_spe = strArray[17];

                pCPoint.record_km = strArray[18];

                pCPoint.stop_ID = strArray[19];

                pCPoint.arrivetime = strArray[20];

                pCPoint.departtime = strArray[21];

                pCPoint.nextstop_ID = strArray[22];

                pList.Add(pCPoint);

                strLine = sr.ReadLine();

            }

            sr.Close();

            return pList;

        }