管道，流程，数据源切换，大屏，测量点位

src/main/java/com/sipai/netty/NettyServerHandler.java

@@ -15,6 +15,7 @@ import io.netty.channel.ChannelHandlerContext;
 import io.netty.channel.ChannelInboundHandlerAdapter;
 import io.netty.util.CharsetUtil;
 
+import java.io.IOException;
 import java.math.BigDecimal;
 import java.util.Map.Entry;
 
@@ -107,13 +108,36 @@ public class NettyServerHandler extends ChannelInboundHandlerAdapter  {
 
     @Override
     public void exceptionCaught(ChannelHandlerContext ctx, Throwable cause) throws Exception {
-        super.exceptionCaught(ctx, cause);
+        // 处理远程主机强制关闭连接的异常
+        if (cause instanceof IOException) {
+            String message = cause.getMessage();
+            if (message != null && (message.contains("远程主机强迫关闭了一个现有的连接") 
+                    || message.contains("Connection reset")
+                    || message.contains("远程主机强迫关闭") 
+                    || message.contains("An existing connection was forcibly closed"))) {
+                System.out.println("[" + java.time.LocalDateTime.now() + "] 客户端 [" + ctx.channel().remoteAddress() + "] 已断开连接");
+                ctx.close();
+                return;
+            }
+        }
         /**
-         * 异常捕获
+         * 异常捕获 - 只打印简要信息
          */
+        System.err.println("[" + java.time.LocalDateTime.now() + "] 服务器处理异常：" + cause.getClass().getSimpleName() + " - " + cause.getMessage());
         cause.printStackTrace();
         ctx.close();
     }
+    
+    /**
+     * 当连接断开时调用
+     * @param ctx
+     * @throws Exception
+     */
+    @Override
+    public void channelInactive(ChannelHandlerContext ctx) throws Exception {
+        System.out.println("[" + java.time.LocalDateTime.now() + "] 客户端 [" + ctx.channel().remoteAddress() + "] 连接断开");
+        super.channelInactive(ctx);
+    }
     public static boolean isNumber(String str){
         String reg = "^[0-9]+(.[0-9]+)?$";
         return str.matches(reg);