$key = "WANGBAOCHEN9@wHhs0000000000000000";
$data = '{"Place":"车间1","Weight":68.98}';
//转换为GB2312
$data = iconv('UTF-8','GB2312',$data);
//加密
$data=mcrypt_encrypt(MCRYPT_RIJNDAEL_128,$key, $data, 'ecb');
//转HEX
$data = strtoupper(bin2hex($data));
//解密
//转string
$data = hex2bin(strtolower($data))
