Java HttpURLConnection setAuthenticator

2025 年 3 月 22 日 | 阅读需 2 分钟

setAuthenticator(Authenticator auth) 是 Java HttpURLConnection 类的一个方法。此方法用于通过 HTTP 协议设置身份验证请求。如果未发送身份验证，则使用默认身份验证。

语法

参数

Auth - 此 HttpURLConnection 使用的验证器。

Throw

UnsupportedOperationException - 当不支持身份验证的实现时，会发生此异常。

IllegalStateException - 当 URLConnection 已经连接时，会发生此异常。

NullPointerException - 当提供的 auth 为 null 时，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; 
import java.net.URLConnection;
import java.util.Base64;
public class JavaHttpURLConnectionsetAuthenticatorExample1 {
    //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 url = new URL(link_url);
        URLConnection uc = url.openConnection();
        String password = "123";
        String username = "Tpointtech";
        String userpass = username + ":" + password;
        System.out.println("https://tpointtech.cn");
        String basicAuth = "Basic :" + new String(Base64.getEncoder().encode(userpass.getBytes()));
        System.out.println(basicAuth);
        uc.setRequestProperty ("Authorization", basicAuth);
        }
        catch (Exception e) 
        {
            System.out.println(e);
        }
    }
}

输出

https://tpointtech.cn
Basic :SmF2YXRwb2ludDoxMjM=

示例 2

import java.io.IOException; 
import java.io.InputStream;
import java.net.HttpURLConnection; 
import java.net.URL; 
import java.net.URLConnection;
import java.util.Base64;
public class JavaHttpURLConnectionsetAuthenticatorExample2 {
    //Starting the main method...
    public static void main(String h[]) throws IOException 
    { 
        //starting the try block
        try 
        {
        String link_url ;
        link_url="https://#";
        URL url = new URL(link_url);
        URLConnection uc = url.openConnection();
        String password = "563";
        String username = "facebook";
        String userpass = username + ":" + password;
        System.out.println("https://#");
        String basicAuth = "Basic : " + new String(Base64.getEncoder().encode(userpass.getBytes()));
        System.out.println(basicAuth);
        uc.setRequestProperty ("Authorization", basicAuth);
        }
        catch (Exception e) 
        {
            System.out.println(e);
        }
    }
}

输出

https://#
Basic : ZmFjZWJvb2s6NTYz

下一个主题Java HttpURLConnection 类

Java HttpURLConnection setAuthenticator

语法

参数

Throw

示例 1

示例 2

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 HttpURLConnection setAuthenticator

语法

参数

Throw

示例 1

示例 2

相关帖子

setFollowRedirects()

getFollowRedirects()

getResponseCode()

getHeaderField()

getResponseMessage()

disconnect()

getErrorStream()

Java HttpURLConnection

订阅 Tpoint Tech

联系信息

关注我们