Java URI getAuthority()方法及示例

getAuthority() 函数是URL类的一部分。getAuthority()函数返回一个指定的URL的权限。URL的授权部分是该URL的主机名和端口。

函数签名

public String getAuthority()

语法

url.getAuthority()

参数 ：该函数不需要任何参数。

返回类型 ：该函数返回 字符串 类型

下面的程序说明了getHost()函数的使用。

例1 :

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

输出:

URL = https:// www.geeksforgeeks.orgAuthority =  www.geeksforgeeks.org

例2： getAuthority()和getHost()函数的区别在于，getAuthority()返回主机和端口，而getHost()只返回主机名。

// Java program to show the// use of the function getAuthority()  import java.net.*;  class Solution {    public static void main(String args[])    {        // url  object        URL url = null;          try {            // create a URL            url                = new URL(                    "https:// www.geeksforgeeks.org:80/url-samefile-method-in-java-with-examples/");              // get the Authority            String authority                = url.getAuthority();              // get the Host            String host = url.getHost();              // display the URL            System.out.println("URL = " + url);              // display the Authority            System.out.println("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:

URL = https:// www.geeksforgeeks.org:80/url-samefile-method-in-java-with-examples/Authority =  www.geeksforgeeks.org:80Host =  www.geeksforgeeks.org