private void MergeFileBtn_Click_1(object sender, EventArgs e)
{
// 首先判断，文件是否已经存在
if (!(File.Exists(SourceFileName1) && File.Exists(SourceFileName2)))
{
// 如果文件不存在，那么提示无法读取！
MessageBox.Show(SourceFileName1 + "或者" + SourceFileName2 + "文件不存在！");
return;
}
try
{
if (File.Exists(SaveFileName))
{
File.Delete(SaveFileName);
}
ShapeFileFunction.MergeTwoShpFile(SourceFileName1, SourceFileName2, SaveFileName);
}
catch (Exception ex)
{
Console.WriteLine("在合并文件的过程中，发生了异常！");
Console.WriteLine(ex.Message);
Console.WriteLine(ex.StackTrace);
}
MessageBox.Show("合并完成！");
}
private void MergeFolderBtn_Click(object sender, EventArgs e)
{
string sourceDerectiony = OpenFolderName.Text.Trim();
string TargetFile = SaveFileName2.Text.Trim();
if (sourceDerectiony.Length <= 0 || TargetFile.Length <= 0)
{
MessageBox.Show("SourceFolder or TargetFile is null.", "Information", MessageBoxButtons.OK, MessageBoxIcon.Exclamation);
return;
}
else if (!Directory.Exists(sourceDerectiony))
{
MessageBox.Show("SourceFolder isn't exist.", "Information", MessageBoxButtons.OK, MessageBoxIcon.Exclamation);
return;
}
if (File.Exists(TargetFile))
{
File.Delete(TargetFile);
}
string[] files = Directory.GetFiles(sourceDerectiony, "*.shp");
if (files.Length <= 1)
{
MessageBox.Show("Merge file less 1.", "Information", MessageBoxButtons.OK, MessageBoxIcon.Exclamation);
return;
}
TimeSpan ts1 = new TimeSpan(DateTime.Now.Ticks); //获取当前时间的刻度数
ShapeFileFunction.MergeManyShpFile(files, TargetFile);
TimeSpan ts2 = new TimeSpan(DateTime.Now.Ticks);
TimeSpan ts = ts2.Subtract(ts1).Duration(); //时间差的绝对值
String spanTime = ts.Hours.ToString() + "小时" + ts.Minutes.ToString() + "分" + ts.Seconds.ToString() + "秒" + ts.Milliseconds.ToString() + "毫秒"; //以X小时X分X秒的格式现实执行时间
MessageBox.Show("合并结束，耗时" + spanTime);
}
public static void MergeManyShpFile(string[] sourceFiles, String saveFileName, BackgroundWorker worker, DoWorkEventArgs e)
{
BinaryReader binaryReader1 = null;
FileStream fileStreamRead = null;
FileStream fileStreamWrite = null;
fileStreamWrite = new FileStream(saveFileName, FileMode.Create, FileAccess.Write);
BinaryWriter binaryWriter = new BinaryWriter(fileStreamWrite);
Record record = new Record();
int recordLastNum = 0;
ShpFileHeader shpFileHeaderTatal = new ShpFileHeader();
ShpFileHeader shpFileHeaderRead = new ShpFileHeader();
for (int i = 0; i < sourceFiles.Length; i++)
{
fileStreamRead = new FileStream(sourceFiles[i], FileMode.Open, FileAccess.Read, FileShare.None);
binaryReader1 = new BinaryReader(fileStreamRead);
shpFileHeaderRead = ShapeFileFunction.ReadShpFileHeader(binaryReader1);
if (i == 0)
{
ShapeFileFunction.WriteShpFileHeader(shpFileHeaderRead, binaryWriter);
shpFileHeaderTatal = shpFileHeaderRead;
}
else
{
shpFileHeaderTatal = ShapeFileFunction.MergeShpHeader(shpFileHeaderTatal, shpFileHeaderRead);
}
while (binaryReader1.BaseStream.Position < binaryReader1.BaseStream.Length)
{
record = ShapeFileFunction.ReadRecord(binaryReader1);
record.recordNum = recordLastNum++;
ShapeFileFunction.WriteRecord(record, binaryWriter);
}
binaryReader1.Close();
fileStreamRead.Close();
worker.ReportProgress(i * 100 / (sourceFiles.Length - 1));
// Thread.Sleep(200);
if (worker.CancellationPending)
{
fileStreamWrite.Seek(0, SeekOrigin.Begin);
WriteShpFileHeader(shpFileHeaderTatal, binaryWriter);
binaryWriter.Close();
fileStreamWrite.Close();
e.Cancel = true;
return;
}
}
fileStreamWrite.Seek(0, SeekOrigin.Begin);
WriteShpFileHeader(shpFileHeaderTatal, binaryWriter);
binaryWriter.Close();
fileStreamWrite.Close();
}
private void backgroundWorker1_DoWork(object sender, DoWorkEventArgs e)
{
BackgroundWorker worker = sender as BackgroundWorker;
try
{
ShapeFileFunction.MergeManyShpFile(files, TargetFile, worker, e);
}
catch (Exception ex)
{
MessageBox.Show("Merge error,error code:" + ex.ToString(), "Information", MessageBoxButtons.OK, MessageBoxIcon.Stop);
}
}
public static void MergeShpRecord(BinaryReader binaryReader1, BinaryReader binaryReader2, BinaryWriter binaryWriter)
{
Record record = new Record();
while (binaryReader1.BaseStream.Position < binaryReader1.BaseStream.Length)
{
record = ShapeFileFunction.ReadRecord(binaryReader1);
ShapeFileFunction.WriteRecord(record, binaryWriter);
}
int recordLastNum = record.recordNum;
while (binaryReader2.BaseStream.Position < binaryReader2.BaseStream.Length)
{
record = ShapeFileFunction.ReadRecord(binaryReader2);
record.recordNum = recordLastNum + record.recordNum;
ShapeFileFunction.WriteRecord(record, binaryWriter);
}
}
public static void MergeManyShpFile(string[] sourceFiles, String saveFileName, ContorlMinAndMaxValue contorlMinAndMaxValue, RefreshValue refreshValue)
{
BinaryReader binaryReader1 = null;
FileStream fileStreamRead = null;
FileStream fileStreamWrite = null;
fileStreamWrite = new FileStream(saveFileName, FileMode.Create, FileAccess.Write);
BinaryWriter binaryWriter = new BinaryWriter(fileStreamWrite);
Record record = new Record();
int recordLastNum = 0;
ShpFileHeader shpFileHeaderTatal = new ShpFileHeader();
ShpFileHeader shpFileHeaderRead = new ShpFileHeader();
contorlMinAndMaxValue(0, sourceFiles.Length - 1);
for (int i = 0; i < sourceFiles.Length; i++)
{
fileStreamRead = new FileStream(sourceFiles[i], FileMode.Open, FileAccess.Read, FileShare.None);
binaryReader1 = new BinaryReader(fileStreamRead);
shpFileHeaderRead = ShapeFileFunction.ReadShpFileHeader(binaryReader1);
if (i == 0)
{
ShapeFileFunction.WriteShpFileHeader(shpFileHeaderRead, binaryWriter);
shpFileHeaderTatal = shpFileHeaderRead;
}
else
{
shpFileHeaderTatal = ShapeFileFunction.MergeShpHeader(shpFileHeaderTatal, shpFileHeaderRead);
}
while (binaryReader1.BaseStream.Position < binaryReader1.BaseStream.Length)
{
record = ShapeFileFunction.ReadRecord(binaryReader1);
record.recordNum = recordLastNum++;
ShapeFileFunction.WriteRecord(record, binaryWriter);
}
binaryReader1.Close();
fileStreamRead.Close();
Thread.Sleep(500);
refreshValue(i);
}
fileStreamWrite.Seek(0, SeekOrigin.Begin);
WriteShpFileHeader(shpFileHeaderTatal, binaryWriter);
binaryWriter.Close();
fileStreamWrite.Close();
}
public static void MergeTwoShpFile(string sourceFileName1, string sourceFileName2, String saveFileName)
{
BinaryReader binaryReader1 = null;
BinaryReader binaryReader2 = null;
FileStream fileStream1 = null;
FileStream fileStream2 = null;
FileStream fileStream3 = null;
try
{
fileStream1 = new FileStream(sourceFileName1, FileMode.Open, FileAccess.Read, FileShare.None);
binaryReader1 = new BinaryReader(fileStream1);
fileStream2 = new FileStream(sourceFileName2, FileMode.Open, FileAccess.Read, FileShare.None);
binaryReader2 = new BinaryReader(fileStream2);
fileStream3 = new FileStream(saveFileName, FileMode.Create, FileAccess.Write);
BinaryWriter binaryWriter = new BinaryWriter(fileStream3);
ShpFileHeader shpFileHeader1 = new ShpFileHeader();
shpFileHeader1 = ShapeFileFunction.ReadShpFileHeader(binaryReader1);
ShpFileHeader shpFileHeader2 = new ShpFileHeader();
shpFileHeader2 = ShapeFileFunction.ReadShpFileHeader(binaryReader2);
ShpFileHeader shpFileHeader3 = ShapeFileFunction.MergeShpHeader(shpFileHeader1, shpFileHeader2);
ShapeFileFunction.WriteShpFileHeader(shpFileHeader3, binaryWriter);
MergeShpRecord(binaryReader1, binaryReader2, binaryWriter);
binaryReader1.Close();
fileStream1.Close();
binaryReader2.Close();
fileStream2.Close();
binaryReader1 = null;
binaryReader2 = null;
fileStream1 = null;
fileStream2 = null;
fileStream3 = null;
binaryWriter.Close();
fileStream2.Close();
}
catch (Exception ex)
{
Console.WriteLine("在合并文件的过程中，发生了异常！");
Console.WriteLine(ex.Message);
Console.WriteLine(ex.StackTrace);
}
finally
{
if (fileStream1 != null || fileStream2 != null || fileStream3 != null)
{
try
{
fileStream1.Close();
fileStream2.Close();
fileStream3.Close();
}
catch
{
// 最后关闭文件，无视关闭是否会发生错误了.
}
}
}
}
