GDAL读取属性乱码的终极解决方案（C#）

osgeo.gdal.gdal.setconfigoption("gdal_filename_is_utf8", "yes");

osgeo.gdal.gdal.setconfigoption("shape_encoding", "");

osgeo.gdal.gdal.allregister();

osgeo.ogr.ogr.registerall();

[dllimport("gdal300.dll", entrypoint = "ogr_f_getfieldasstring", callingconvention = callingconvention.cdecl)]

public extern static system.intptr ogr_f_getfieldasstring(handleref handle, int index);

[dllimport("gdal300.dll", entrypoint = "ogr_f_getfieldasbinary", callingconvention = callingconvention.cdecl)]

public extern static system.intptr ogr_f_getfieldasbinary(handleref handle, int index, out int bytecount);

string fieldname = pfielddefn.getname();

int fieldindex = pfeaturedefn.getfieldindex(fieldname);

//intptr pintptr = ogr_f_getfieldasstring(osgeo.ogr.feature.getcptr(pfeature), fieldindex);

int bytecount =0;

//intptr a = count;

intptr pintptr = ogr_f_getfieldasbinary(osgeo.ogr.feature.getcptr(pfeature), fieldindex, out bytecount);

byte[] bytearray = new byte[bytecount];

marshal.copy(pintptr,bytearray, 0, bytecount);

console.writeline(bytecount); // marshal.ptrtostringansi(pintptr)

// console.writeline(pfeature.getfieldasstring(i));

string str = system.text.encoding.default.getstring(bytearray);
// utf8encoding utf8 = new utf8encoding();

// string str = utf8.getstring(bytearray);
console.writeline(str);

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