Java中的 URI getRawAuthority() 方法及示例

getRawAuthority()函数是 URI 类的一部分。函数getRawAuthority() 返回指定 URI 的原始权限。此函数返回主机名和 post 的确切值，而不解码转义八位位组的序列（如果有）。

函数签名：

public String getRawAuthority()

语法：

url.getRawAuthority()

参数此函数不需要任何参数

返回类型该函数返回字符串类型，即主机名的确切值

下面的程序说明了 getRawAuthority()函数的使用：

示例 1：

// Java program to show the
// use of the function getRawAuthority()
  
import java.net.*;
  
class GFG {
  
public static void main(String args[])
    {
        // URI  object
        URI uri = null;
  
        try {
            // create a URI
            uri = new URI(
                "https://www.geeksforgeeks.org");
  
            // get the raw Authority
            String raw_authority
                = uri.getRawAuthority();
  
            // display the URI
            System.out.println("URI = " + uri);
  
            // display the Raw Authority
            System.out.println("Raw Authority = "
                               + raw_authority);
        }
  
        // if any error occurs
        catch (Exception e) {
  
            // display the error
            System.out.println(e);
        }
    }
}

输出：

URI = https://www.geeksforgeeks.org
Raw Authority = www.geeksforgeeks.org

示例 2： getRawAuthority() 和 getHost()函数的区别在于 getRawAuthority() 将主机连同端口一起返回，而 getHost() 仅返回主机名。

// Java program to show the
// use of the function getRawAuthority()
  
import java.net.*;
  
class GFG {
    public static void main(String args[])
    {
        // url  object
        URI uri = null;
  
        try {
            // create a URI
            uri
                = new URI(
                    "https://www.geeksforgeeks.org:80");
  
            // get the Raw Authority
            String authority
                = uri.getRawAuthority();
  
            // get the Host
            String host = uri.getHost();
  
            // display the URI
            System.out.println("URI = " + uri);
  
            // display the raw Authority
            System.out.println("Raw Authority = "
                               + authority);
  
            // display the Host
            System.out.println("Host = " + host);
        }
  
        // if any error occurs
        catch (Exception e) {
  
            // display the error
            System.out.println(e);
        }
    }
}

输出：

URI = https://www.geeksforgeeks.org:80
Raw Authority = www.geeksforgeeks.org:80
Host = www.geeksforgeeks.org

示例 3： getAuthority() 和 getRawAuthority() 返回的值是相同的，只是所有转义的八位字节序列都被解码。 getRawAuthority() 返回用户提供的字符串的确切值，但 getAuthority()函数解码转义的八位字节序列（如果有）。

// Java program to show the
// use of the function getAuthority()
  
import java.net.*;
  
class GFG {
    public static void main(String args[])
    {
        // url  object
        URI uri = null;
  
        try {
            // create a URI
            uri
                = new URI(
                    "https://www.geeksforgeeks%E2%82%AC.org:80");
  
            // get the Authority
            String authority = uri.getAuthority();
  
            // get the Raw Authority
            String Raw_authority
                = uri.getRawAuthority();
  
            // display the URI
            System.out.println("URI = " + uri);
  
            // display the Authority
            System.out.println("Authority = "
                               + authority);
  
            // display the Raw Authority
            System.out.println("Raw Authority = "
                               + Raw_authority);
        }
  
        // if any error occurs
        catch (Exception e) {
  
            // display the error
            System.out.println(e);
        }
    }
}

输出：

URI = https://www.geeksforgeeks%E2%82%AC.org:80
Authority = www.geeksforgeeks?.org:80
Raw Authority = www.geeksforgeeks%E2%82%AC.org:80