Java Authenticator getRequestorType() 方法

2025 年 3 月 20 日 | 阅读 2 分钟

Authenticator 类的 getRequestorType() 方法返回请求者是代理（Proxy）还是服务器（Server）。

语法

参数

不传递任何参数。

请求者的身份验证类型

Throw

不抛出异常。

示例 1

import java.io.BufferedReader; 
import java.io.IOException; 
import java.io.InputStreamReader; 
import java.net.Authenticator; 
import java.net.InetAddress; 
import java.net.MalformedURLException; 
import java.net.PasswordAuthentication; 
import java.net.URL; 
  
public class AuthenticatorgetRequestorTypeExample1 
{ 
    public static void main(String[] args)  
    { 
        try { 
            ClassAuthenticator obj1 =new ClassAuthenticator();
            Authenticator.setDefault(new ClassAuthenticator());      
            URL url = new URL("TpointTech"); 
            System.out.println("Port info ::"+url.getPort()); 
            BufferedReader in = new BufferedReader(new InputStreamReader(url.openStream())); 
            String line; 
            System.out.println("Port info ::"+url.getPort()); 
           obj1.getPasswordAuthentication() ;
            while ((line = in.readLine()) != null) { 
                System.out.println(line); 
            } 
            in.close(); 
        } catch (MalformedURLException e) { 
            System.out.println("Malformed URL: " + e.getMessage()); 
        } catch (IOException e) { 
           System.out.println("I/O Error: " + e.getMessage()); 
        } 
    } 
    public static class ClassAuthenticator extends Authenticator  
    { 
        protected PasswordAuthentication getPasswordAuthentication()  
        { 
            this.show();
            String username = "TpointTech"; 
            String password = "java"; 
            
            return new PasswordAuthentication(username, password.toCharArray()); 
        } 
        void show()
        {       
            System.out.println("RequestorType :" +this.getRequestorType());  
        }
    } 
}

输出

Port info ::-1
Port info ::-1
RequestorType :null
// Source code of TpointTech is printed.

示例 2

import java.io.BufferedReader; 
import java.io.IOException; 
import java.io.InputStreamReader; 
import java.net.Authenticator; 
import java.net.InetAddress; 
import java.net.MalformedURLException; 
import java.net.PasswordAuthentication; 
import java.net.URL; 
  
public class AuthenticatorgetRequestorTypeExample2    
{ 
    public static void main(String[] args)  
    {  
        try { 
             ClassAuthenticator obj1 =new ClassAuthenticator();
            Authenticator.setDefault(new ClassAuthenticator()); 
            obj1.getPasswordAuthentication() ;
            URL url = new URL("TpointTech"); 
            BufferedReader in = new BufferedReader(new InputStreamReader(url.openStream())); 
            System.out.println("Protocol:" + url.getProtocol());  
            String line; 
            while ((line = in.readLine()) != null) { 
                System.out.println(line); 
            } 
            in.close(); 
        } catch (MalformedURLException e) { 
            System.out.println("Malformed URL: " + e.getMessage()); 
        } catch (IOException e) { 
            System.out.println("I/O Error: " + e.getMessage()); 
        } 
    } 
 
    public static class ClassAuthenticator extends Authenticator  
    {
        protected PasswordAuthentication getPasswordAuthentication()  
        { 
            System.out.println("RequestorType :" +getRequestorType()); 
            String username = "TpointTech"; 
            String password = "java"; 
            return new PasswordAuthentication(username, password.toCharArray()); 
        } 
    } 
}

输出

RequestorType : null
Protocol:https
//source code of TpointTech is printed.

下一个主题setDefault() 方法

Java Authenticator getRequestorType() 方法

语法

参数

返回

Throw

示例 1

示例 2

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Java Authenticator getRequestorType() 方法

语法

参数

返回

Throw

示例 1

示例 2

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