public static void FeaturesToJSON(string shpName) { int ShapeType;//shp文件类型，点1 线3 面5 double[] fileBox = new double[4]; List<int> partsArr = new List<int>();//多部分的 List<double> coorsArr = new List<double>();//坐标 fileBox[0] = double.MaxValue; fileBox[1] = double.MaxValue; fileBox[2] = double.MinValue; fileBox[3] = double.MinValue; FileStream fs = new FileStream(shpPath, FileMode.Open, FileAccess.Read); BinaryReader br = new BinaryReader(fs); //Console.WriteLine("开始读取面文件..."); //读取文件过程 br.ReadBytes(24); int FileLength = br.ReadInt32(); //Console.WriteLine("文件长度:" + ChangeByteOrder(FileLength)); int FileBanben = br.ReadInt32(); //Console.WriteLine("版本号:" + FileBanben); ShapeType = br.ReadInt32(); //Console.WriteLine("几何类型:" + ShapeType); fileBox[0] = br.ReadDouble(); //Console.WriteLine("空间数据所占空间范围的X方向最小值:" + fileBox[0]); fileBox[1] = br.ReadDouble(); //Console.WriteLine("空间数据所占空间范围的Y方向最小值:" + fileBox[1]); fileBox[2] = br.ReadDouble(); //Console.WriteLine("空间数据所占空间范围的X方向最大值:" + fileBox[2]); fileBox[3] = br.ReadDouble(); //Console.WriteLine("空间数据所占空间范围的Y方向最大值:" + fileBox[3]); br.ReadBytes(32); StringBuilder sb = new StringBuilder("{"); sb.Append("\"displayFieldName\":\"\",\r\n"); sb.Append("\"fieldAliases\":{\"FID\":\"FID\",\"Id\" : \"Id\"},\r\n"); sb.Append("\"geometryType\" : \"esriGeometryPolygon\",\r\n"); sb.Append(" \"spatialReference\" : {\"wkid\" : 4326,\"latestWkid\" : 4326},\r\n"); sb.Append("\"fields\" : [{\"name\" : \"FID\",\"type\" : \"esriFieldTypeOID\",\"alias\" : \"FID\"}],\r\n"); sb.Append("\"features\" : [\r\n"); switch (ShapeType) { case 5: while (br.PeekChar() != -1) { uint RecordNum = br.ReadUInt32(); int index = ChangeByteOrder((int)RecordNum) - 1; //Console.WriteLine("文件记录号为:" + index); int DataLength = br.ReadInt32(); //Console.WriteLine("坐标长度为:" + ChangeByteOrder(DataLength)); //读取第i个记录 int m = br.ReadInt32(); //Console.WriteLine("几何类型:" + m); for (int i = 0; i < 4; i++) { br.ReadDouble(); //Console.WriteLine("Box[" + i + "]:" + br.ReadDouble()); } int numParts = br.ReadInt32(); //Console.WriteLine("子面个数:" + numParts); int numPoints = br.ReadInt32(); //Console.WriteLine("坐标点个数:" + numPoints); //Console.WriteLine("每个子环在坐标点内的起始位置:"); for (int j = 0; j < numParts; j++) { int parts = new int(); parts = br.ReadInt32(); partsArr.Add(parts); //Console.WriteLine("parts[" + j + "]:" + parts); } //Console.WriteLine("Points数组:"); for (int j = 0; j < numPoints; j++) { double X = br.ReadDouble(); double Y = br.ReadDouble(); coorsArr.Add(X); coorsArr.Add(Y); } for (int i = 0; i < partsArr.Count; i++) { sb.Append("{\"attributes\" : {\"FID\":" + index + "},\r\n\"geometry\" : {\r\n\"rings\" : [[\r\n"); //sb.Append("\r\n["); //sb.Append("\"Name\":\"" + nameArr[index - 1] + "\",\r\n"); //sb.Append("\"Value\":0,\r\n"); //sb.Append("\"PointCollection\":\r\n["); int startIndex = partsArr[i]; startIndex = startIndex * 2; int endIndex = partsArr[partsArr.Count - 1]; string coorJson = ""; if (i == partsArr.Count - 1)//最后一个走这里 { while (startIndex < coorsArr.Count) { coorJson += "[" + coorsArr[startIndex++] + "," + coorsArr[startIndex++] + "],"; //sb.Append(); } } else { while (startIndex < partsArr[i + 1] * 2) { coorJson += "[" + coorsArr[startIndex++] + "," + coorsArr[startIndex++] + "],"; //sb.Append(); } } coorJson = coorJson.Substring(0, coorJson.Length - 1); sb.Append(coorJson); //sb.Append("]\r\n],\r\n"); sb.Append("]]}},\r\n"); //string jstring = ""; //jstring += "\r\n{"; //jstring += "\"Name\":\"" + nameArr[index] + "\",\r\n"; //jstring += "\"Value\":0,\r\n"; //jstring += "\"PointCollection\":\r\n["; } partsArr.Clear(); coorsArr.Clear(); //Console.WriteLine(); //Console.WriteLine("--------------------------"); } break; default: Console.WriteLine("shp文件必须为面类型，且不带Z、M值"); break; } int start = sb.Length - 3; sb.Remove(start, 1); sb.Append("]}"); WriteTxt(sb.ToString(), shpName); fs.Flush(); fs.Close(); } //转换位字节 大小位转换 private static int ChangeByteOrder(int indata) { byte[] src = new byte[4]; src[0] = (byte)((indata >> 24) & 0xFF); src[1] = (byte)((indata >> 16) & 0xFF); src[2] = (byte)((indata >> 8) & 0xFF); src[3] = (byte)(indata & 0xFF); int value; value = (int)((src[0] & 0xFF) | ((src[1] & 0xFF) << 8) | ((src[2] & 0xFF) << 16) | ((src[3] & 0xFF) << 24)); return value; } private static bool WriteTxt(string s, string shpName) { try { FileStream fs = new FileStream("E:\\HJProject\\ShangDong\\Json\\" + shpName + ".json", FileMode.Create); //FileStream fs = new FileStream("C:\\json.txt", FileMode.Create); byte[] data = System.Text.Encoding.Default.GetBytes(s); fs.Write(data, 0, data.Length); fs.Flush(); fs.Close(); return true; } catch { return false; } }