@Override
public void channelDisconnected(ChannelHandlerContext ctx, ChannelStateEvent e) throws Exception {
Channel channel = ctx.getChannel();
if (!sessions.removeSession(channel.getId())) {
Log.error("删除Session失败！ sockId: " + channel.getId());
}
}
private String getUtf(ChannelBuffer buffer) {
// UTF = short + data;
int readableBytes = buffer.readableBytes();
if (readableBytes < 2) {
throw new IllegalArgumentException("buffer doesn't contains utf data!");
}
// 只有长度 没有内容
if (readableBytes == 2) {
return "";
}
int dataLen = buffer.readUnsignedShort();
byte[] data = new byte[dataLen];
buffer.readBytes(data);
try {
return new String(data, "UTF-8");
} catch (UnsupportedEncodingException e) {
Log.error("解码UTF错误", e);
}
return null;
}