fix code

hutool-socket/src/main/java/cn/hutool/socket/SocketUtil.java

@@ -23,8 +23,9 @@ public class SocketUtil {
 	 *
 	 * @param channel {@link AsynchronousSocketChannel}
 	 * @return 远程端的地址信息，包括host和端口，null表示channel为null或者远程主机未连接
+	 * @throws IORuntimeException IO异常
 	 */
-	public static SocketAddress getRemoteAddress(final AsynchronousSocketChannel channel) {
+	public static SocketAddress getRemoteAddress(final AsynchronousSocketChannel channel) throws IORuntimeException {
 		try {
 			return (null == channel) ? null : channel.getRemoteAddress();
 		} catch (final ClosedChannelException e) {
@@ -41,8 +42,9 @@ public class SocketUtil {
 	 *
 	 * @param channel {@link AsynchronousSocketChannel}
 	 * @return 远程主机是否处于连接状态
+	 * @throws IORuntimeException IO异常
 	 */
-	public static boolean isConnected(final AsynchronousSocketChannel channel) {
+	public static boolean isConnected(final AsynchronousSocketChannel channel) throws IORuntimeException{
 		return null != getRemoteAddress(channel);
 	}
 

hutool-socket/src/main/java/cn/hutool/socket/nio/NioClient.java

@@ -3,6 +3,7 @@ package cn.hutool.socket.nio;
 import cn.hutool.core.io.IORuntimeException;
 import cn.hutool.core.io.IoUtil;
 import cn.hutool.core.thread.ThreadUtil;
+import cn.hutool.log.Log;
 import cn.hutool.socket.SocketRuntimeException;
 
 import java.io.Closeable;
@@ -21,6 +22,7 @@ import java.util.Iterator;
  * @since 4.4.5
  */
 public class NioClient implements Closeable {
+	private static final Log log = Log.get();
 
 	private Selector selector;
 	private SocketChannel channel;
@@ -32,6 +34,7 @@ public class NioClient implements Closeable {
 	 * @param host 服务器地址
 	 * @param port 端口
 	 */
+	@SuppressWarnings("resource")
 	public NioClient(final String host, final int port) {
 		init(new InetSocketAddress(host, port));
 	}
@@ -41,6 +44,7 @@ public class NioClient implements Closeable {
 	 *
 	 * @param address 服务器地址
 	 */
+	@SuppressWarnings("resource")
 	public NioClient(final InetSocketAddress address) {
 		init(address);
 	}
@@ -91,7 +95,7 @@ public class NioClient implements Closeable {
 			try {
 				doListen();
 			} catch (final IOException e) {
-				e.printStackTrace();
+				log.error("Listen failed", e);
 			}
 		});
 	}

hutool-socket/src/main/java/cn/hutool/socket/nio/NioServer.java

@@ -3,7 +3,6 @@ package cn.hutool.socket.nio;
 import cn.hutool.core.io.IORuntimeException;
 import cn.hutool.core.io.IoUtil;
 import cn.hutool.log.Log;
-import cn.hutool.log.StaticLog;
 
 import java.io.Closeable;
 import java.io.IOException;
@@ -34,6 +33,7 @@ public class NioServer implements Closeable {
 	 *
 	 * @param port 端口
 	 */
+	@SuppressWarnings("resource")
 	public NioServer(final int port) {
 		init(new InetSocketAddress(port));
 	}
@@ -58,6 +58,7 @@ public class NioServer implements Closeable {
 			// 服务器套接字注册到Selector中 并指定Selector监控连接事件
 			this.serverSocketChannel.register(selector, SelectionKey.OP_ACCEPT);
 		} catch (final IOException e) {
+			close();
 			throw new IORuntimeException(e);
 		}
 
@@ -140,7 +141,7 @@ public class NioServer implements Closeable {
 				handler.handle(socketChannel);
 			} catch (final Exception e){
 				IoUtil.close(socketChannel);
-				StaticLog.error(e);
+				log.error(e);
 			}
 		}
 	}