20230627 java.net.Socket

介绍

• java.net.Socket
• public class Socket implements java.io.Closeable
• 套接字（ Socket ）是网络软件中的一个抽象概念，负责启动该程序内部和外部之间的通信

API

构造器

• Socket()
• Socket(Proxy proxy)
• Socket(String host, int port) throws UnknownHostException, IOException
• Socket(InetAddress address, int port) throws IOException
• Socket(String host, int port, InetAddress localAddr, int localPort) throws IOException
• Socket(InetAddress address, int port, InetAddress localAddr, int localPort) throws IOException
  • 创建一个还未被连接的套接字
  • UnknownHostException 是 IOException 的子类

public

• connect

  • void connect(SocketAddress endpoint) throws IOException
  • void connect(SocketAddress endpoint, int timeout) throws IOException
  • 将套接字连接到远程主机

• bind

  • void bind(SocketAddress bindpoint) throws IOException
  • 将套接字绑定到本地地址
  • 可选，如果没有显式调用，Java会自动为Socket分配一个未使用的端口，并使用该端口和localhost地址进行绑定

• close

• isConnected

• isBound

• isClosed

• setSoTimeout, getSoTimeout

  • 设置该套接字上读请求的阻塞时间

• getInetAddress

• getLocalAddress

• getPort

• getLocalPort

• getRemoteSocketAddress

• getLocalSocketAddress

• getChannel

• setTcpNoDelay, getTcpNoDelay

• setSoLinger, getSoLinger

• sendUrgentData

• setOOBInline, getOOBInline

• setSendBufferSize, getSendBufferSize

• setReceiveBufferSize, getReceiveBufferSize

• setKeepAlive, getKeepAlive

• setTrafficClass, getTrafficClass

• setReuseAddress, getReuseAddress

• setSocketImplFactory

• setPerformancePreferences

• setOption, getOption

• supportedOptions

输入输出流

• getInputStream

• getOutputStream

• shutdownInput

  • 将输出流设为 “流结束”

• shutdownOutput

  • 将输入流设为 “流结束”

• isInputShutdown

• isOutputShutdown