Java Socket setSoLinger() 方法

2025 年 3 月 25 日 | 阅读 2 分钟

Java Socket 类的 setSoLinger() 方法使用给定的延迟时间（以秒为单位）来启用或禁用 SO_LINGER 选项。它用于指定 close() 方法如何影响使用面向连接协议的套接字。超时值是平台特定的，此设置仅影响套接字关闭。

语法

参数

on - 是否启用 'linger'。M

linger - 如果参数 'on' 为 true，则延迟的时间。

不适用

抛出

SocketException - 如果底层协议（如 TCP 错误）存在错误。

IllegalArgumentException - 如果 linger 值小于 0。

示例 1

import java.io.IOException;
import java.net.*;
public class JavaSocketSetSoLingerExample1  {
    public static void main(String[] args) throws IOException {
        //calling the constructor of the socket class
        Socket socket = new Socket();
        //enabling the SO_LINGER option
        boolean on=true;
        //setting the integer value for timeout
        int timeout=90;
        //setSoLinger() method enables or disables the SO_LINGER  option with the given linger time in seconds.
        socket.setSoLinger(on,timeout);
        //getSoLinger() method returns the setting if the SO_Linger option is set
        System.out.println("Timeout value: "+socket.getSoLinger());
    }
}

输出

Timeout value: 90

示例 2

import java.io.IOException;
import java.net.*;
public class JavaSocketSetSoLingerExample2  {
    public static void main(String[] args) throws IOException {
        //calling the constructor of the socket class
        Socket socket = new Socket();
        //disabling the SO_LINGER option
        boolean on=false;
        //setting the integer value for timeout
        int timeout=90;
        //setSoLinger() method enables or disables the SO_LINGER  option with the given linger time in seconds.
        //if the SO_LINGER option is disabled, it returns -1
        socket.setSoLinger(on,timeout);
        //getSoLinger() method returns the setting if the SO_Linger option is set
        System.out.println("Timeout value: "+socket.getSoLinger());
    }
}

输出

Timeout value: -1

示例 3

import java.io.IOException;
import java.net.*;
public class JavaSocketSetSoLingerExample3  {
    public static void main(String[] args) throws IOException {
        //calling the constructor of the socket class
        Socket socket = new Socket();
        //disabling the SO_LINGER option
        boolean on=true;
        //setting the integer value for timeout
        //the timeout value should be greater or equal to 0
        int timeout=-10;
        socket.setSoLinger(on,timeout);
        //getSoLinger() method returns the setting if the SO_Linger option is set
        System.out.println("Send Buffer size: "+socket.getSoLinger());
    }
}

输出

Exception in thread "main" java.lang.IllegalArgumentException: invalid value for SO_LINGER
	at java.net.Socket.setSoLinger(Socket.java:1021)
	at com.tpointtech.JavaSocketSetSoLingerExample3.main(JavaSocketSetSoLingerExample3.java:14)

示例 4

import java.io.IOException;
import java.net.*;
public class JavaSocketSetSoLingerExample4  {
    public static void main(String[] args) throws IOException {
        //calling the constructor of the socket class
        Socket socket = new Socket();
        //closing the socket
        socket.close();
        //disabling the SO_LINGER option
        boolean on=true;
        //setting the integer value for timeout
        //the timeout value should be greater or equal to 0
        int timeout=10;
        //setSoLinger() method enables or disables the SO_LINGER  option with the given linger time in seconds.
        //it will throw an error, as the socket is already closed
        socket.setSoLinger(on,timeout);
        //getSoLinger() method returns the setting if the SO_Linger option is set
        System.out.println("Send Buffer size: "+socket.getSoLinger());
    }
}

输出

Exception in thread "main" java.net.SocketException: Socket is closed
	at java.net.Socket.setSoLinger(Socket.java:1016)
	at com.tpointtech.JavaSocketSetSoLingerExample4.main(JavaSocketSetSoLingerExample4.java:18)

下一主题Java Socket 类

Java Socket setSoLinger() 方法

语法

参数

返回

抛出

示例 1

示例 2

示例 3

示例 4

联系信息

关注我们

教程

面试题

在线编译器

Python

Java

.Net Framework

AI, ML and Data Science

Cloud Technology

B.Tech and MCA

Web Technology

PHP

Software Testing

Technical Interview

Java Interview

Python

Web Interview

Database Interview

B.Tech / MCA

Important Interview

Software Testing Interview

Company Interviews

Online Compilers

Multiple Choice Questions

Java String 方法

Java 数组类

Java Math 方法

ArrayList 方法

Java List 方法

Java 线程方法

Java Date 类

Java Collection 方法

Java ListIterator 类

Java NIO 教程

HttpURLConnection

Java Deque

Java HttpCookie 类

Java URL 类

Java Vector 类

Java Socket 类

Java Executors

Java Integer 类

Java IdentityHashMap

Java ArrayBlockingQueue

Java Timestamp

Java Spliterator

Java Bitset

Java Instant

Java Compiler 类

Java AtomicInteger 类

Java AtomicLong 方法

Java Authenticator

Java BigDecimal 类

Big Integer 类

Java Boolean 类

Java Byte Class

Java Class

Java Collections 类

CopyOnWriteArrayList

LinkedBlockingDeque

Java Long 类

LinkedTransferQueue

Java List

Java MulticastSocket

Java Number 类

Java Phaser 类

Java Socket setSoLinger() 方法

语法

参数

返回

抛出

示例 1

示例 2

示例 3

示例 4

相关帖子

Socket getReuseAddress()

Socket getChannel()

Socket getRemoteSocketAddress()

Socket toString()

Socket isBound()

Socket getTcpNoDelay()

Socket 类

Socket connect()