ClassLoader类的getResources()方法 (ClassLoader Class getResources() method)

• getResources() method is available in java.lang package.

  getResources()方法在java.lang包中可用。

• getResources() method is used to identify all the resources with the given resource name.

  getResources()方法用于标识具有给定资源名称的所有资源。

• getResources() method is a non-static method, it is accessible with the class object only and if we try to access the method with the class name then we will get an error.

  getResources()方法是一个非静态方法，只能通过类对象访问，如果尝试使用类名称访问该方法，则会收到错误消息。

• getResources() method may throw an exception at the time of returning resource.

  getResources()方法在返回资源时可能会引发异常。

  IOException: This exception may throw during I/O operations.

  IOException ：在I / O操作期间可能会引发此异常。

Syntax:

句法：

    Enumeration getResources(String resource_name);

Parameter(s):

参数：

• String resource_name – represents the name of the resource.

  字符串resource_name –表示资源的名称。

Return value:

返回值：

The return type of this method is Enumeration, it returns Enumeration of URL object for scanning the resource otherwise it returns null when the given resource does not exist.

此方法的返回类型为Enumeration ，它返回用于扫描资源的URL对象的Enumeration，否则在给定资源不存在时返回null。

Example:

例：

// Java program to demonstrate the example
// of Enumeration getResources(String resource_name)
// method of ClassLoader
import java.net.*;
import java.util.*;
public class GetResourcesOfClassLoader {public static void main(String args[]) throws Exception {// It loads the class
Class cl = Class.forName("GetResourcesOfClassLoader");
// It returns the class loader associated with
// the given class
ClassLoader loader = cl.getClassLoader();
// Display Loader Class
System.out.println("Loader Class : ");
System.out.println(loader.getClass());
System.out.println();
// It returns the resources associated with this Class
// GetResourcesOfClassLoader
Enumeration en = loader.getResources("getProperties().doc");
// Display Resources
System.out.println("Class Resources : ");
while (en.hasMoreElements())
System.out.println(en.nextElement());
}
}

Output

输出量

Loader Class :
class jdk.internal.loader.ClassLoaders$AppClassLoaderClass Resources :

翻译自: https://www.includehelp.com/java/classloader-getresources-method-with-example.aspx