Java HttpURLConnection setFollowRedirects

2025 年 3 月 22 日 | 阅读需 2 分钟

setFollowRedirects 是 Java HttpURLConnection 类的一个方法。该方法用于设置是否遵循 HTTP 重定向（响应码为 3xx 的请求）。默认情况下返回 true。

语法

参数

set - 它是一个布尔值。检查是否进行 HTTP 重定向。

抛出

SecurityException - 如果存在安全管理器并且其 checkSetFactory 方法不允许此操作，则会发生此异常。

示例 1

import java.io.IOException; 
import java.io.InputStream;
import java.net.HttpURLConnection; 
import java.net.URL; 
public class JavaHttpURLConnectiongetFollowRedirectsExample1 {
    //Starting the main method...
    public static void main(String h[]) throws IOException 
    { 
        //starting the try block
        try {
        String link_url ;
        link_url="https://tpointtech.cn";
        URL obj1 = new URL(link_url); //URL Connection Created...
        HttpURLConnection con1 = (HttpURLConnection) obj1.openConnection(); //Http URL Connection Created...
        con1.connect();
         HttpURLConnection.setFollowRedirects(true);
            System.out.println("getFollowRedirects : "+con1.getFollowRedirects());
        con1.setConnectTimeout(1000);
        con1.disconnect();
        System.out.println("connecion disconnected");
        }
        catch (Exception e) {
            System.out.println( e);
        }
}
}

输出

getFollowRedirects : true
connecion disconnected

示例 2

import java.io.IOException; 
import java.io.InputStream;
import java.net.HttpURLConnection; 
import java.net.URL; 
public class JavaHttpURLConnectiongetFollowRedirectsExample2 {
    //Starting the main method...
    public static void main(String h[]) throws IOException 
    { 
        //starting the try block
        try {
         String link_url1, link_url2;
        link_url1="https://mysqlserver.cn";
        link_url2="https://www.oracle.com";
        URL obj1 = new URL(link_url1); //URL Connection Created...
        URL obj2 = new URL(link_url2);
        HttpURLConnection con1 = (HttpURLConnection) obj1.openConnection(); //Http URL Connection Created...
        HttpURLConnection con2 = (HttpURLConnection) obj2.openConnection();
        con1.connect();
         HttpURLConnection.setFollowRedirects(true);
        System.out.println("www.mysql.com");
        System.out.println("getFollowRedirects :" + con1.getFollowRedirects());
        System.out.println("www.oracle.com");
        System.out.println("getFollowRedirects :" + con2.getFollowRedirects());
        con1.setConnectTimeout(1000);
        con1.disconnect();
        System.out.println("connection disconnected");
        }
        catch (Exception e) {
            System.out.println( e);
        }
}
}

输出

getFollowRedirects :true
www.oracle.com
getFollowRedirects :true
connection disconnected

下一个主题Java HttpURLConnection 类

Java HttpURLConnection setFollowRedirects

语法

参数

抛出

示例 1

示例 2

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Java HttpURLConnection setFollowRedirects

语法

参数

抛出

示例 1

示例 2

相关帖子

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Java HttpURLConnection

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