Java Executors defaultThreadFactory()用法及代码示例

Executors 类的 defaultThreadFactory() 方法返回一个用于创建新线程的默认线程工厂。这个工厂在同一个 ThreadGroup 中创建一个 Executor 使用的所有新线程。如果有一个 SecurityManager，它使用 System 组。

用法

public static ThreadFactory defaultThreadFactory()

参数

没有传递参数

一个线程工厂

抛出

不适用。

例子1

import java.util.concurrent.Executors;  
    import java.util.concurrent.ThreadFactory;  
      
    public class ExecutordefaultThreadFactoryExample1 {  
       
        public static void main(String[] args) {  
            ThreadFactory thrdfctry = Executors.defaultThreadFactory();  
            Thread t = thrdfctry.newThread(new Mythrd());  
            t.start();        
        }   
    }  
      
    class Mythrd implements Runnable {  
       
        @Override  
        public void run() {  
            System.out.println("Running thread concurrently");  
        }  
    }

输出：

Running thread concurrently

例子2

import java.util.Date;
    import java.util.concurrent.Executors;  
    import java.util.concurrent.ThreadFactory;  
      
    public class ExecutordefaultThreadFactoryExample2 {  
       
        public static void main(String[] args) {  
            ThreadFactory thrdfctry = Executors.defaultThreadFactory(); 
            for(int i=0 ; i<=5 ; i++){
            Thread t = thrdfctry.newThread(new Mythrd2());  
             t.start();        
        }   
    }  
    }
    class Mythrd2 implements Runnable {  
       
        @Override  
        public void run() {  
            System.out.println("Running thread concurrently ::" +  new Date());  
        }  
    }

输出：

Running thread concurrently ::Sun Mar 17 02:34:38 IST 2019
Running thread concurrently ::Sun Mar 17 02:34:38 IST 2019
Running thread concurrently ::Sun Mar 17 02:34:38 IST 2019
Running thread concurrently ::Sun Mar 17 02:34:38 IST 2019
Running thread concurrently ::Sun Mar 17 02:34:38 IST 2019
Running thread concurrently ::Sun Mar 17 02:34:38 IST 2019

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注：本文由纯净天空筛选整理自 Java Executors defaultThreadFactory() Method。非经特殊声明，原始代码版权归原作者所有，本译文未经允许或授权，请勿转载或复制。