C#中将double值变成二进制然后写入文件，Java中载入该文件读取此二进制double值时不正确

Question

目前已定位到是因为C#中的byte范围是0到255，而java中byte值为-128到127导致的错误。 尝试过使用C#的sbyte来解决： bw1 = new BinaryWriter(new FileStream("C:\\Users\\DELL\\Desktop\\SpatialIndex\\ctest1.bin", FileMode.Create)); bw2 = new BinaryWriter(new FileStream("C:\\Users\\DELL\\Desktop\\SpatialIndex\\ctest2.bin", FileMode.Create));                 byte[] bits=BitConverter.GetBytes(501751.060001268);//测试数据                sbyte[] bitsb = new sbyte[8];                for (int i = 0; i < bits.Length; i++)                {                    byte abyte = bits[i];                    if (abyte > 127)                    {                        bitsb[i] = (sbyte)(abyte - 256);                    }                    else                    {                        bitsb[i] = (sbyte)abyte;                    }                    bw1.Write(bitsb[i]);                    bw2.Write(bits[i]);                }    但是写入后对比，两个文件中的内容还是一样，并没有生成为java二进制格式。   不知道有哪位高人也遇到并解决过类似问题。           

Answer 1

public static sbyte[] ToJavaBytes(byte[] bytes)
        {
            int len = bytes.Length;
            sbyte[] sbs = new sbyte[len];
            for (int i = 0; i < len; i++)
            {
                var b = bytes[i];
                if (b > 127)
                {
                    sbs[len - 1 - i] = (sbyte)(b - 256);
                }
                else
                {
                    sbs[len - 1 - i] = (sbyte)b;
                }
            }
            return sbs;
        }