Java HttpURLConnection disconnect() 方法

2025 年 3 月 22 日 | 阅读需 2 分钟

disconnect() 是 HttpURLConnection 类的方法。此方法用于断开与服务器的连接。此方法不能用于实现复用其他 HttpURLConnection 请求。

语法

示例 1

import java.io.IOException; 
import java.net.HttpURLConnection; 
import java.net.URL; 
public class JavaHttpURLConnectionDisconnectMethodExample1 {
    //Starting the main method...
    public static void main(String h[]) throws IOException 
	{ 
        //starting the try block
        try 
        {
        String link_url1 ;
        link_url1="https://tpointtech.cn";
        URL obj1 = new URL(link_url1); //URL Connection Created...
        HttpURLConnection con1 = (HttpURLConnection) obj1.openConnection(); //Http URL Connection Created...
        int r_code = con1.getResponseCode(); // it is use to get the status code from HTTP response message
        System.out.println("status code from HTTP response message : "+r_code);
        con1.disconnect(); // disconnecting the connection
        System.out.println("connection disconnected");
        }
        catch (Exception e) 
        {
            System.out.println( e);
        }
    }
}

输出

status code from HTTP response message : 200
connection disconnected

示例 2

import java.io.IOException; 
import java.io.InputStream;
import java.net.HttpURLConnection; 
import java.net.URL; 
public class JavaHttpURLConnectionDisconnectMethodExample2{
    //Starting the main method...
    public static void main(String h[]) throws IOException 
	{ 
        //starting the try block
        try 
        {
        String link_url1 ;
        link_url1="https://tpointtech.cn";
        URL obj1 = new URL(link_url1); //URL Connection Created...
        HttpURLConnection con1 = (HttpURLConnection) obj1.openConnection(); //Http URL Connection Created...
        con1.connect();
        for(int a=1;a<=8;a++)
        {  
            System.out.println(con1.getHeaderFieldKey(a)+" = "+con1.getHeaderField(a));  
            con1.disconnect();
            System.out.println("Connection disconnected"); // disconnecting the connection
        } 
        }
        catch (Exception e) 
        {
            System.out.println( e);
        }
}
}

输出

Date = Tue, 27 Nov 2018 04:06:28 GMT
Connection disconnected
Server = Apache
Connection disconnected
Set-Cookie = JSESSIONID=615EA0EEF0B0C58FFE5D6FB233FCA458; Path=/; Secure; HttpOnly
Connection disconnected
Content-Type = text/html;charset=ISO-8859-1
Connection disconnected
Cache-Control = max-age=2592000
Connection disconnected
Expires = Thu, 27 Dec 2018 04:06:28 GMT
Connection disconnected
Vary = Accept-Encoding,User-Agent
Connection disconnected
Keep-Alive = timeout=5, max=4000
Connection disconnected

下一个主题Java HttpURLConnection 类

Java HttpURLConnection disconnect() 方法

语法

示例 1

示例 2

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Java HttpURLConnection disconnect() 方法

语法

示例 1

示例 2

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