同一个线程中的多次for循环去连接并关闭代理，都是第3次循环就异常，请问是怎么回事呀？

[a74559774]

我的main方法代码：

> public static void main(String[] args) {
>         String proxyIp = "proxyIp";
>         Integer proxyPort = 823;
>         String proxyUsername = "proxyUsername";
>         String proxyPassword = "proxyPassword";
>         HttpProxyServer httpProxyServer = null;
>         for (int i = 0; i < 6; i++) {
>             try {
>                 httpProxyServer = new HttpProxyServer();
>                 httpProxyServer.proxyConfig(new ProxyConfig(ProxyType.HTTP, proxyIp, proxyPort, proxyUsername, proxyPassword)).startAsync(9999);
>                 HttpRequest httpRequest = HttpRequest.get("https://api.ipapi.is").timeout(30000);
>                 httpRequest.setProxy(new Proxy(Proxy.Type.HTTP,new InetSocketAddress("127.0.0.1",9999)));
>                 String ipInfo = httpRequest.execute().body();
>                 JSONObject ipJSONObject = JSONObject.parseObject(ipInfo);
>                 System.out.println(DateUtil.format(new Date(), "yyyy-MM-dd HH:mm:ss") +" timezone:"+ipJSONObject.getJSONObject("location").getString("timezone") + " ip:"+ipJSONObject.getString("ip"));
>             } catch (Exception e) {
>                 e.printStackTrace();
>             } finally {
>                 httpProxyServer.close();
>                 System.out.println(" ");
>                 try {
>                     Thread.sleep(3000l);
>                 } catch (InterruptedException e) {
>                     throw new RuntimeException(e);
>                 }
>             }
>         }
>     }

执行日志：

> 2024-09-12 10:04:03 timezone:America/New_York ip:24.186.122.183
> 10:04:03.349 [nioEventLoopGroup-3-1] DEBUG io.netty.handler.logging.LoggingHandler - [id: 0xd1d1d081, L:/0:0:0:0:0:0:0:0:9999] INACTIVE
> 10:04:03.349 [nioEventLoopGroup-3-1] DEBUG io.netty.handler.logging.LoggingHandler - [id: 0xd1d1d081, L:/0:0:0:0:0:0:0:0:9999] UNREGISTERED
>  
> 10:04:05.375 [nioEventLoopGroup-4-1] DEBUG io.netty.buffer.PoolThreadCache - Freed 4 thread-local buffer(s) from thread: nioEventLoopGroup-4-1
> 10:04:05.462 [nioEventLoopGroup-2-1] DEBUG io.netty.buffer.PoolThreadCache - Freed 4 thread-local buffer(s) from thread: nioEventLoopGroup-2-1
> 10:04:06.467 [nioEventLoopGroup-6-1] DEBUG io.netty.handler.logging.LoggingHandler - [id: 0xdea628af] REGISTERED
> 10:04:06.468 [nioEventLoopGroup-6-1] DEBUG io.netty.handler.logging.LoggingHandler - [id: 0xdea628af] BIND: 0.0.0.0/0.0.0.0:9999
> 10:04:06.472 [nioEventLoopGroup-6-1] DEBUG io.netty.handler.logging.LoggingHandler - [id: 0xdea628af, L:/0:0:0:0:0:0:0:0:9999] ACTIVE
> 10:04:06.475 [nioEventLoopGroup-6-1] DEBUG io.netty.handler.logging.LoggingHandler - [id: 0xdea628af, L:/0:0:0:0:0:0:0:0:9999] READ: [id: 0xcfc84d9e, L:/127.0.0.1:9999 - R:/127.0.0.1:65272]
> 10:04:06.476 [nioEventLoopGroup-6-1] DEBUG io.netty.handler.logging.LoggingHandler - [id: 0xdea628af, L:/0:0:0:0:0:0:0:0:9999] READ COMPLETE
> 2024-09-12 10:04:10 timezone:America/New_York ip:98.14.211.198
> 10:04:10.318 [nioEventLoopGroup-6-1] DEBUG io.netty.handler.logging.LoggingHandler - [id: 0xdea628af, L:/0:0:0:0:0:0:0:0:9999] INACTIVE
> 10:04:10.318 [nioEventLoopGroup-6-1] DEBUG io.netty.handler.logging.LoggingHandler - [id: 0xdea628af, L:/0:0:0:0:0:0:0:0:9999] UNREGISTERED
>  
> 10:04:12.335 [nioEventLoopGroup-7-1] DEBUG io.netty.buffer.PoolThreadCache - Freed 4 thread-local buffer(s) from thread: nioEventLoopGroup-7-1
> 10:04:12.432 [nioEventLoopGroup-5-1] DEBUG io.netty.buffer.PoolThreadCache - Freed 4 thread-local buffer(s) from thread: nioEventLoopGroup-5-1
> 10:04:13.413 [nioEventLoopGroup-9-1] DEBUG io.netty.handler.logging.LoggingHandler - [id: 0x1b01ccbc] REGISTERED
> 10:04:13.414 [nioEventLoopGroup-9-1] DEBUG io.netty.handler.logging.LoggingHandler - [id: 0x1b01ccbc] BIND: 0.0.0.0/0.0.0.0:9999
> 10:04:13.420 [nioEventLoopGroup-9-1] DEBUG io.netty.handler.logging.LoggingHandler - [id: 0x1b01ccbc, L:/0:0:0:0:0:0:0:0:9999] ACTIVE
> 10:04:13.430 [nioEventLoopGroup-9-1] DEBUG io.netty.handler.logging.LoggingHandler - [id: 0x1b01ccbc, L:/0:0:0:0:0:0:0:0:9999] INACTIVE
> 10:04:13.430 [nioEventLoopGroup-9-1] DEBUG io.netty.handler.logging.LoggingHandler - [id: 0x1b01ccbc, L:/0:0:0:0:0:0:0:0:9999] UNREGISTERED
> cn.hutool.http.HttpException: Connection refused: connect
> 	at cn.hutool.http.HttpResponse.init(HttpResponse.java:568)
> 	at cn.hutool.http.HttpResponse.initWithDisconnect(HttpResponse.java:541)
> 	at cn.hutool.http.HttpResponse.<init>(HttpResponse.java:83)
> 	at cn.hutool.http.HttpRequest.doExecute(HttpRequest.java:1195)
> 	at cn.hutool.http.HttpRequest.execute(HttpRequest.java:1051)
> 	at cn.hutool.http.HttpRequest.execute(HttpRequest.java:1027)
> 	at com.overseas.utils.ProxyUtil.getIp(ProxyUtil.java:60)
> 	at com.overseas.utils.ProxyUtil.main(ProxyUtil.java:33)
> Caused by: java.net.ConnectException: Connection refused: connect
> 	at java.base/java.net.PlainSocketImpl.waitForConnect(Native Method)
> 	at java.base/java.net.PlainSocketImpl.socketConnect(PlainSocketImpl.java:107)
> 	at java.base/java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:412)
> 	at java.base/java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:255)
> 	at java.base/java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:237)
> 	at java.base/java.net.Socket.connect(Socket.java:608)
> 	at java.base/sun.net.NetworkClient.doConnect(NetworkClient.java:177)
> 	at java.base/sun.net.www.http.HttpClient.openServer(HttpClient.java:510)
> 	at java.base/sun.net.www.http.HttpClient$1.run(HttpClient.java:562)
> 	at java.base/sun.net.www.http.HttpClient$1.run(HttpClient.java:560)
> 	at java.base/java.security.AccessController.doPrivileged(Native Method)
> 	at java.base/sun.net.www.http.HttpClient.privilegedOpenServer(HttpClient.java:559)
> 	at java.base/sun.net.www.http.HttpClient.openServer(HttpClient.java:600)
> 	at java.base/sun.net.www.http.HttpClient.parseHTTP(HttpClient.java:745)
> 	at java.base/sun.net.www.protocol.http.HttpURLConnection.getInputStream0(HttpURLConnection.java:1637)
> 	at java.base/sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLConnection.java:1542)
> 	at java.base/java.net.HttpURLConnection.getResponseCode(HttpURLConnection.java:527)
> 	at java.base/sun.net.www.protocol.https.HttpsURLConnectionImpl.getResponseCode(HttpsURLConnectionImpl.java:334)
> 	at cn.hutool.http.HttpConnection.responseCode(HttpConnection.java:482)
> 	at cn.hutool.http.HttpResponse.init(HttpResponse.java:565)
> 	... 7 more
>  
> 10:04:16.528 [nioEventLoopGroup-12-1] DEBUG io.netty.handler.logging.LoggingHandler - [id: 0xe5da100c] REGISTERED
> 10:04:16.528 [nioEventLoopGroup-12-1] DEBUG io.netty.handler.logging.LoggingHandler - [id: 0xe5da100c] BIND: 0.0.0.0/0.0.0.0:9999
> 10:04:16.533 [nioEventLoopGroup-12-1] DEBUG io.netty.handler.logging.LoggingHandler - [id: 0xe5da100c, L:/0:0:0:0:0:0:0:0:9999] ACTIVE
> 10:04:16.542 [nioEventLoopGroup-12-1] DEBUG io.netty.handler.logging.LoggingHandler - [id: 0xe5da100c, L:/0:0:0:0:0:0:0:0:9999] INACTIVE
> 10:04:16.542 [nioEventLoopGroup-12-1] DEBUG io.netty.handler.logging.LoggingHandler - [id: 0xe5da100c, L:/0:0:0:0:0:0:0:0:9999] UNREGISTERED
>  
> cn.hutool.core.io.IORuntimeException: ConnectException: Connection refused: connect
> 	at cn.hutool.http.HttpRequest.send(HttpRequest.java:1350)
> 	at cn.hutool.http.HttpRequest.doExecute(HttpRequest.java:1188)
> 	at cn.hutool.http.HttpRequest.execute(HttpRequest.java:1051)
> 	at cn.hutool.http.HttpRequest.execute(HttpRequest.java:1027)
> 	at com.overseas.utils.ProxyUtil.getIp(ProxyUtil.java:60)
> 	at com.overseas.utils.ProxyUtil.main(ProxyUtil.java:33)
> Caused by: java.net.ConnectException: Connection refused: connect
> 	at java.base/java.net.PlainSocketImpl.waitForConnect(Native Method)
> 	at java.base/java.net.PlainSocketImpl.socketConnect(PlainSocketImpl.java:107)
> 	at java.base/java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:412)
> 	at java.base/java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:255)
> 	at java.base/java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:237)
> 	at java.base/java.net.Socket.connect(Socket.java:608)
> 	at java.base/sun.net.NetworkClient.doConnect(NetworkClient.java:177)
> 	at java.base/sun.net.www.http.HttpClient.openServer(HttpClient.java:510)
> 	at java.base/sun.net.www.http.HttpClient$1.run(HttpClient.java:562)
> 	at java.base/sun.net.www.http.HttpClient$1.run(HttpClient.java:560)
> 	at java.base/java.security.AccessController.doPrivileged(Native Method)
> 	at java.base/sun.net.www.http.HttpClient.privilegedOpenServer(HttpClient.java:559)
> 	at java.base/sun.net.www.http.HttpClient.openServer(HttpClient.java:600)
> 	at java.base/sun.net.www.protocol.https.HttpsClient.<init>(HttpsClient.java:265)
> 	at java.base/sun.net.www.protocol.https.HttpsClient.New(HttpsClient.java:372)
> 	at java.base/sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.getNewHttpClient(AbstractDelegateHttpsURLConnection.java:207)
> 	at java.base/sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1232)
> 	at java.base/sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1081)
> 	at java.base/sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(AbstractDelegateHttpsURLConnection.java:193)
> 	at java.base/sun.net.www.protocol.https.HttpsURLConnectionImpl.connect(HttpsURLConnectionImpl.java:168)
> 	at cn.hutool.http.HttpConnection.connect(HttpConnection.java:387)
> 	at cn.hutool.http.HttpRequest.send(HttpRequest.java:1345)
> 	... 5 more