java.net.ConnectException: Connection refused: connect

最新推荐文章于 2024-04-26 17:01:24 发布

原创最新推荐文章于 2024-04-26 17:01:24 发布 · 198 阅读

0 ·

CC 4.0 BY-SA版权

文章标签：

#Java #.net #Swing #Socket #编程

activeMQ 专栏收录该内容

1 篇文章

订阅专栏

本文探讨了Java网络编程中常见的java.net.ConnectException错误：Connection refused，并提供了实用的解决思路，强调了启动客户端前必须先运行服务器的重要性。

摘要生成于 C知道，由 DeepSeek-R1 满血版支持，前往体验 >

转载自：http://niceday17.blogbus.com/logs/31179053.html

相信一定有朋友和我一样在进行JAVA网络编程的时候，遇到过以下问题：

java.net.ConnectException: Connection refused: connect
at java.net.PlainSocketImpl.socketConnect(Native Method)
at java.net.PlainSocketImpl.doConnect(PlainSocketImpl.java:333)
at java.net.PlainSocketImpl.connectToAddress(PlainSocketImpl.java:195)
at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:182)
at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:364)
at java.net.Socket.connect(Socket.java:507)
at java.net.Socket.connect(Socket.java:457)
at java.net.Socket.<init>(Socket.java:365)
at java.net.Socket.<init>(Socket.java:178)
at niceday17.Client.MessageOperate(Client.java:58)
at niceday17.Client$1.actionPerformed(Client.java:44)
at javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:1849)
at javax.swing.AbstractButton$Handler.actionPerformed(AbstractButton.java:2169)
at javax.swing.DefaultButtonModel.fireActionPerformed(DefaultButtonModel.java:420)
at javax.swing.DefaultButtonModel.setPressed(DefaultButtonModel.java:258)
at javax.swing.plaf.basic.BasicButtonListener.mouseReleased(BasicButtonListener.java:234)
at java.awt.Component.processMouseEvent(Component.java:5488)
at javax.swing.JComponent.processMouseEvent(JComponent.java:3126)
at java.awt.Component.processEvent(Component.java:5253)
at java.awt.Container.processEvent(Container.java:1966)
at java.awt.Component.dispatchEventImpl(Component.java:3955)
at java.awt.Container.dispatchEventImpl(Container.java:2024)
at java.awt.Component.dispatchEvent(Component.java:3803)
at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4212)
at java.awt.LightweightDispatcher.processMouseEvent(Container.java:3892)
at java.awt.LightweightDispatcher.dispatchEvent(Container.java:3822)
at java.awt.Container.dispatchEventImpl(Container.java:2010)
at java.awt.Window.dispatchEventImpl(Window.java:1774)
at java.awt.Component.dispatchEvent(Component.java:3803)
at java.awt.EventQueue.dispatchEvent(EventQueue.java:463)
at java.awt.EventDispatchThread.pumpOneEventForHierarchy(EventDispatchThread.java:242)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:163)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:157)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:149)
at java.awt.EventDispatchThread.run(EventDispatchThread.java:110)

说是解决方案，也谈不上，不过有一点可以提醒一下：必须先运行服务器再运行客户端，次序不能颠倒，也就是必须先有接收的，在有发送的，不然发送的地方没有接收的，肯定会出Connection refused: connect 之类的错误