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

@@ -5,10 +5,18 @@ import io.netty.buffer.Unpooled;
 import io.netty.channel.ChannelHandlerContext;
 import io.netty.channel.ChannelInboundHandlerAdapter;
 
+import java.io.IOException;
 import java.nio.charset.Charset;
 import java.util.Date;
 
 public class NettyClientHandler extends ChannelInboundHandlerAdapter  {
+    
+    private NettyClient nettyClient;
+    
+    public NettyClientHandler(NettyClient nettyClient) {
+        this.nettyClient = nettyClient;
+    }
+    
     /**
      * 通道信息读取处理
      * @param ctx
@@ -25,6 +33,8 @@ public class NettyClientHandler extends ChannelInboundHandlerAdapter  {
              * 给服务端回复消息
              */
             ctx.writeAndFlush("客户端收到! 消息为: " + m.toString(Charset.defaultCharset()));
+        } catch (Exception e) {
+            System.err.println("读取消息异常: " + e.getMessage());
         } finally {
             m.release();
         }
@@ -42,15 +52,56 @@ public class NettyClientHandler extends ChannelInboundHandlerAdapter  {
          * 消息格式必须是ByteBuf才行!!!!!
          * 如果是其他格式服务端是接收不到的!!!!
          */
+        System.out.println("首次连接完成!");
         String helo = "你好呀!";
         ByteBuf byteBuf = Unpooled.wrappedBuffer(helo.getBytes());
         ctx.channel().writeAndFlush(byteBuf);
-        System.out.println("首次连接完成!");
     }
 
+    /**
+     * 当连接断开时调用
+     * @param ctx
+     * @throws Exception
+     */
+    @Override
+    public void channelInactive(ChannelHandlerContext ctx) throws Exception {
+        System.out.println("连接已断开，准备重连...");
+        if (nettyClient != null) {
+            nettyClient.reconnect();
+        }
+    }
+
+    /**
+     * 异常处理
+     * @param ctx
+     * @param cause
+     */
     @Override
     public void exceptionCaught(ChannelHandlerContext ctx, Throwable cause) {
-        cause.printStackTrace();
+        // 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() + "] 远程主机已关闭连接，等待重连...");
+                ctx.close();
+                // 触发重连
+                if (nettyClient != null) {
+                    nettyClient.reconnect();
+                }
+                return;
+            }
+        }
+        
+        // 其他异常只打印简要信息，不打印完整堆栈
+        System.err.println("[" + java.time.LocalDateTime.now() + "] 客户端异常：" + cause.getClass().getSimpleName() + " - " + cause.getMessage());
         ctx.close();
+        
+        // 触发重连
+        if (nettyClient != null) {
+            nettyClient.reconnect();
+        }
     }
 }