@Override
public void channelRead0(final ChannelHandlerContext ctx, Object msg) throws Exception {
ByteBuf in = (ByteBuf) msg;
byte[] bytes = in.array();
String sInfo = Hex.encodeHexStr(bytes);
logger.info(String.format("primary received:%s", sInfo));
// 接收到包的长度
int length = in.readableBytes();
// 终端设备上报到服务器位始 $$
String head = in.readBytes(2).toString(Charset.defaultCharset());
if ("$$".equals(head)) {
// 从包的字段得到包的长度
short l = in.readShort();
System.out.println(l);
if (length == l) {
// 得到产品id 序列号
final String serialNumber = byteToArray(in.readBytes(7).array());
// 得到协议号
final String agreement = byteToArray(in.readBytes(2).array());
// 得到数据
final String content = operation(serialNumber, head, length, l, agreement, in, ctx);
// 得到校验位 checksum
String checksum = byteToArray(in.readBytes(2).array());
// 得到结束符\r\n
final String end = byteToArray(in.readBytes(2).array());
executorService.execute(
new Runnable() {
public void run() {
try {
serviceHandler(ctx, serialNumber, agreement, content, end);
} catch (Exception e) {
e.printStackTrace();
}
}
});
}
}
}
protected void serviceHandler(
ChannelHandlerContext ctx, String serialNumber, String agreement, String content, String end)
throws Exception {
/*
* 子服务器的ip和端口(根据子服务器的ip和端口,可以做随机下发子服务器，然后设备根据你下发的信息,去连接子服务器)
*/
String ip = "120.24.176.185";
int port = 8075;
if ("0002".equals(agreement)) {
String info =
"40400023" + serialNumber + agreement + Hex.encodeHexStr((ip + ":" + port).getBytes());
// 返回消息给终端
returnMessage(info, ctx, end);
Info in = infoDao.findBySerialNumber(serialNumber);
if (in != null) {
in.setIp(ip);
in.setPort(port);
infoDao.updateInfo(in);
} else {
Info i = new Info();
i.setIp(ip);
i.setPort(port);
i.setSerialNumber(serialNumber);
infoDao.addInfo(i);
}
if (sndao.findBySerialNumber(serialNumber) != null) {
logger.info("SerialNumber has registered");
} else {
SerialNumber serialNum = new SerialNumber();
serialNum.setSerialNumber(serialNumber);
serialNum.setEf("3");
sndao.addSerialNumber(serialNum);
logger.info("new SerialNumber, SerialNumber added");
}
}
}