优化

‘liusuyi’

2023-08-08 4920f3a1290f2061f7b81db78ce0dab7b6ae8fc2

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
package com.ard.utils.udp;
 
import com.ard.alarm.tube.service.TubeAlarmService;
import com.ard.utils.other.SpringTool;
import io.netty.buffer.ByteBuf;
import io.netty.buffer.Unpooled;
import io.netty.channel.ChannelHandlerContext;
import io.netty.channel.SimpleChannelInboundHandler;
import io.netty.channel.socket.DatagramPacket;
import lombok.extern.slf4j.Slf4j;
 
import java.nio.charset.Charset;
 
@Slf4j(topic = "tube")
public class NettyUdpHandler extends SimpleChannelInboundHandler<DatagramPacket> {
 
    @Override
    protected void channelRead0(ChannelHandlerContext ctx, DatagramPacket packet) {
        try {
            ByteBuf byteBuf = packet.content();
            String str = byteBuf.toString(Charset.forName("GBK"));
            log.info("udp收到数据: " + str);
            TubeAlarmService tubeAlarmService = (TubeAlarmService) SpringTool.getApplicationContext().getBean("tubeAlarmService");
            tubeAlarmService.alarmHandler(str);
            String resStr = "ok";
            byte[] resBytes = resStr.getBytes(Charset.forName("GBK"));
            DatagramPacket resData = new DatagramPacket(Unpooled.copiedBuffer(resBytes), packet.sender());
            ctx.writeAndFlush(resData);
        } catch (Exception e) {
            log.error("udp接收数据异常:" + e.getMessage());
        }
    }
}