Common data conversion method for Android and MCU Communication (summary)

The following code is directly affixed

1. Convert GB2312 to Chinese, such as bafac2dcb2b7→ Carrot, two bytes to synthesize one text

     Public StaticString STRINGTOGBK (String string)throwsException {byte[] bytes =New byte[String.Length ()/2];  for(intj = 0; J < Bytes.length; J + +) {            byteHigh = Byte.parsebyte (String.substring (J * 2, J * 2 + 1), 16); byteLow = Byte.parsebyte (String.substring (J * 2 + 1, J * 2 + 2),                    16); BYTES[J]= (byte) (High << 4 |Low ); The String result=NewString (Bytes, "GBK"); returnresult; }

2. Convert Chinese to GB2312, and results returned in byte[] form, such as Carrot →new byte[]{ba FA C2 DC B2 B7}, a word is divided into two bytes

     Public Static byte throws Exception {        returnnew String (str.getbytes ("GBK"), "gb2312"). GetBytes ("gb2312" );    }

3. Convert the hexadecimal byte[] intact to a string, such as byte[]{0x7e,0x80,0x11,0x20}→7e801120, for log printing

     Public StaticString bytestohexstring (byte[] src) {StringBuilder StringBuilder=NewStringBuilder (""); if(src = =NULL|| Src.length <= 0) {            return NULL; }         for(inti = 0; i < src.length; i++) {            intv = src[i] & 0xFF; String HV=integer.tohexstring (v); if(Hv.length () < 2) {stringbuilder.append (0);        } stringbuilder.append (HV); }        returnstringbuilder.tostring (); }

4. Convert the hexadecimal byte[] intact to a string and separate each byte with a space, such as byte[]{0x7e,0x80,0x11,0x20}→7e 80 11 20, which can be used for log printing

     Public StaticStringBuilder Byte2hexstr (byte[] data) {        if(Data! =NULL&& data.length > 0) {StringBuilder StringBuilder=NewStringBuilder (data.length);  for(bytebytechar:data) {Stringbuilder.append (String.Format ("%02x", Bytechar)); }            returnStringBuilder; }        return NULL; }

5. Convert the byte[] array to 8, 10, 16, etc., such as byte[0x11,0x20]→4384, approximately equal to 1120 (16-binary) →4384,radix represents the binary

     Public Static String Bytestoallhex (byteint  radix) {        returnnew BigInteger (1, bytes). toString (radix); // The 1 here represents a positive number    }

6. Convert the hexadecimal of a string to hexadecimal of byte, for example 7e20→new byte[]{0x7e,x20}

 Public Static byte [] hexstring2bytes (String src) {        bytenewbyte[Src.length ()/2];         byte [] tmp = src.getbytes ();          for (int i = 0; i < TMP.LENGTH/2; i++) {            = unitebytes (Tmp[i * 2], Tmp[i * 2 + 1]);        }        return  ret;    }

Common data conversion method for Android and MCU Communication (summary)