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  • Java 使用 Socket 判断某服务能否连通

    业务场景:判断socket server在否在线,在线返回true,不在线返回false

    package com.thinkgem.wlw.modules.test.socketdemo;
    
    import java.io.IOException;
    import java.net.InetSocketAddress;
    import java.net.Socket;
    import java.net.SocketAddress;
    import java.net.SocketTimeoutException;
    import java.net.UnknownHostException;
    /**
     * @Author zhouhe
     * @Date 2019/10/18 14:24
     */
    public class SocketUtils {
        /**
         * 判断某服务能否连通
         *
         * @param host host
         * @param port port
         * @return boolean
         */
        public static boolean isRunning(String host, int port) {
            Socket sClient = null;
            try {
                SocketAddress saAdd = new InetSocketAddress(host.trim(), port);
                sClient = new Socket();
                sClient.connect(saAdd, 3000);   //设置超时 3s
            }
            catch (UnknownHostException e) {
                return false;
            }
            catch (SocketTimeoutException e) {
                return false;
            }
            catch (IOException e) {
                return false;
            }
            catch (Exception e) {
                return false;
            }
            finally {
                try {
                    if (sClient != null) {
                        sClient.close();
                    }
                }
                catch (Exception e) {
                }
            }
            return true;
        }
    }
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  • 原文地址:https://www.cnblogs.com/zhouheblog/p/11698166.html
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