Java Socket shutdownOutput() 方法

2025 年 3 月 25 日 | 阅读 2 分钟

Java Socket 类的 shutdownOutput() 方法用于禁用指定套接字的输出流。如果在套接字上调用 shutdownOutput() 方法后尝试向输出流写入数据，则会抛出 IOException。

语法

参数

不适用

抛出

IOException - 如果在关闭给定套接字时发生 I/O 错误

示例 1

import java.io.IOException;
import java.net.*;
public class JavaSocketShutdownOutputExample1  {
    public static void main(String[] args) throws IOException {
        //calling the constructor of the socket class
        Socket socket = new Socket();
        InetAddress inetAddress=InetAddress.getByName("localhost");
        //the port should be greater or equal to 0, else it will throw an error
        int port=1085;
        //calling the constructor of the SocketAddress class
        SocketAddress socketAddress=new InetSocketAddress(inetAddress, port);
        //binding the socket with inetAddress and port
        socket.bind(socketAddress);
        //the connection will not establish without binding the socket with bind() method
        socket.connect(socketAddress);
        //shutdownOutput() method disables the output stream for the specified socket.
        socket.shutdownOutput();
        //isConnected() method returns the connected state of the socket
        System.out.println("The socket is connected: "+socket.isConnected());
        //isBound() method returns the binding state of the socket
        System.out.println("The socket is bounded: "+socket.isBound());
        //isOutputShutdown() returns a boolean value ?true? if the write-half of the socket connection has been closed
        System.out.println("The socket is shutdown: "+socket.isOutputShutdown());
    }
}

输出

The socket is connected: true 
The socket is bounded: true
The socket is shutdown: true

示例 2

import java.io.IOException;
import java.net.*;
public class JavaSocketShutdownOutputExample2  {
    public static void main(String[] args) throws IOException {
        //calling the constructor of the socket class
        Socket socket = new Socket();
        //shutdownOutput() method disables the output stream for the specified socket.
        //the socket should be connected else it will throw an SocketException
        socket.shutdownOutput();
        //isOutputShutdown() returns if the write-half of the socket connection is closed.
        System.out.println("output is shutdown: "+socket.isOutputShutdown());
    }
 }

输出

Exception in thread "main" java.net.SocketException: Socket is not connected
	at java.net.Socket.shutdownOutput(Socket.java:1553)
	at com.tpointtech.JavaSocketShutdownOutputExample2.main(JavaSocketShutdownOutputExample2.java:10)

下一主题Java Socket 类

Java Socket shutdownOutput() 方法

语法

参数

返回

抛出

示例 1

示例 2

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Java Socket shutdownOutput() 方法

语法

参数

返回

抛出

示例 1

示例 2

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