java獲取resource文件

• war包

Thread.currentThread().getContextClassLoader()。  
URL l1 =   
Thread.currentThread().getContextClassLoader().getResource("readFile/test1.xml");  
System.out.println(l1);  
  
URL l2 =   
Thread.currentThread().getContextClassLoader().getResource("collection/test2.xml");  
System.out.println(l2);  
  
URL l3 = Thread.currentThread().getContextClassLoader().getResource("test3.xml");  
String l4=l3.getPath();//加上getPath()則去掉前面的file:  

• jar包

InputStream is = Thread.currentThread().getContextClassLoader().getResourceAsStream("conf/job_two_one_mapping.txt");  
try(Scanner scanner = new Scanner(is)) {  
    while (scanner.hasNextLine()) {  
        System.out.println(scanner.nextLine());  
    }  
} catch (Exception e) {  
    log.error("讀取文件數(shù)據(jù)異常" ,e);  
}