📜  Java中的 URL toExternalForm() 方法和示例

📅  最后修改于: 2022-05-13 01:55:30.428000             🧑  作者: Mango

Java中的 URL toExternalForm() 方法和示例

toExternalForm()函数是 URL 类的一部分。 toExternalForm()函数返回指定 URL 的字符串表示形式。该字符串是通过为此对象调用流协议处理程序的 toExternalForm()函数来创建的。

函数签名:

public String toExternalForm()

句法:

url.toExternalForm()

参数:此函数不需要任何参数
返回类型:函数返回字符串类型

下面的程序说明了 toExternalForm()函数的使用:

示例 1 :给定一个 URL,我们将使用该 URL 的字符串表示

// Java program to show the
// use of the function toExternalForm()
  
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  ExternalForm
            String _ExternalForm = url.toExternalForm();
  
            // display the URL
            System.out.println("URL = " + url);
  
            // display the  ExternalForm
            System.out.println(" String representation= "
                               + _ExternalForm);
        }
        // if any error occurs
        catch (Exception e) {
  
            // display the error
            System.out.println(e);
        }
    }
}
输出:
URL = https:// www.geeksforgeeks.org
 String representation= https:// www.geeksforgeeks.org

示例 2:

// Java program to show the
// use of the function toExternalForm()
  
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#Arnab_Kundu");
              
            // get the  ExternalForm
            String _ExternalForm = url.toExternalForm();
  
            // display the URL
            System.out.println("URL = " + url);
  
            // display the  ExternalForm
            System.out.println(" String representation= "
                               + _ExternalForm);
        }
  
        // if any error occurs
        catch (Exception e) {
  
            // display the error
            System.out.println(e);
        }
    }
}
输出:
URL = https:// www.geeksforgeeks.org#Arnab_Kundu
 String representation= https:// www.geeksforgeeks.org#Arnab_Kundu