ClassLoader類(lèi)findResources()方法 (ClassLoader Class findResources() method)

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

  findResources()方法在java.lang包中可用。

• findResources() method is used to find all the resources with the given resource name in the enumeration of URL objects.

  findResources()方法用于在URL對(duì)象的枚舉中查找具有給定資源名稱(chēng)的所有資源。

• findResources() 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.

  findResources()方法是一個(gè)非靜態(tài)方法，只能通過(guò)類(lèi)對(duì)象訪(fǎng)問(wèn)，如果嘗試使用類(lèi)名稱(chēng)訪(fǎng)問(wèn)該方法，則會(huì)收到錯(cuò)誤消息。

• findResources() method may throw an exception at the time of finding the resources.

  findResources()方法在查找資源時(shí)可能會(huì)引發(fā)異常。

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

  IOException ：在I / O錯(cuò)誤期間可能引發(fā)此異常。

Syntax:

句法：

protected Enumeration findResources(String resource_name);

Parameter(s):

參數(shù)：

• String resource_name – represents the name of the resource.

  字符串resource_name –表示資源的名稱(chēng)。

Return value:

返回值：

The return type of this method is Enumeration, it returns an enumeration of URL object for the given resources.

此方法的返回類(lèi)型為Enumeration ，它返回給定資源的URL對(duì)象的枚舉。

Example:

例：

// Java program to demonstrate the example // of Enumeration findResources(String resource_name) // method of ClassLoader import java.util.*; import java.io.*;class FindResources extends ClassLoader {void findResources() {try {// It checks whether the given resources is found// or not by using the findResources()Enumeration en = super.findResources("getProperties().doc");// If en not null that means en found// then don't need to load againif (en != null)System.out.println("Resources Found: " + en.toString());elseSystem.out.println("Resources Not Found!!!");} catch (IOException ex) {System.out.println(ex.toString());}} }public class Main {public static void main(String[] args) throws Exception {// Creating an instance of FindResourcesFindResources fr = new FindResources();fr.findResources();} }

Output

輸出量

Resources Found: [email?protected]

翻譯自: https://www.includehelp.com/java/classloader-findresources-method-with-example.aspx

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