借助线程池同步查找文件内容

package multiplethread;
 
import java.io.File;
import java.io.FileReader;
import java.io.IOException;
 
public class SearchFileTask implements Runnable{
 
    private File file;
    private String search;
    public SearchFileTask(File file,String search) {
        this.file = file;
        this.search= search;
    }
     
    public void run(){
         
        String fileContent = readFileConent(file);
        if(fileContent.contains(search)){
            System.out.printf( "线程: %s 找到子目标字符串%s,在文件:%s%n",Thread.currentThread().getName(), search,file);
             
        }
    }
     
    public String readFileConent(File file){
        try (FileReader fr = new FileReader(file)) {
            char[] all = new char[(int) file.length()];
            fr.read(all);
            return new String(all);
        } catch (IOException e) {
            e.printStackTrace();
            return null;
        }
  
    }  
 
}
 
 
 
 
package multiplethread;
  
import java.util.LinkedList;
  
public class ThreadPool {
    // 线程池大小
    int threadPoolSize;
  
    // 任务容器
    LinkedList<Runnable> tasks = new LinkedList<Runnable>();
  
    // 试图消费任务的线程
  
    public ThreadPool() {
        threadPoolSize = 10;
  
        // 启动10个任务消费者线程
        synchronized (tasks) {
            for (int i = 0; i < threadPoolSize; i++) {
                new TaskConsumeThread("任务消费者线程 " + i).start();
            }
        }
    }
  
    public void add(Runnable r) {
        synchronized (tasks) {
            tasks.add(r);
            // 唤醒等待的任务消费者线程
            tasks.notifyAll();
        }
    }
  
    class TaskConsumeThread extends Thread {
        public TaskConsumeThread(String name) {
            super(name);
        }
  
        Runnable task;
  
        public void run() {
            while (true) {
                synchronized (tasks) {
                    while (tasks.isEmpty()) {
                        try {
                            tasks.wait();
                        } catch (InterruptedException e) {
                            // TODO Auto-generated catch block
                            e.printStackTrace();
                        }
                    }
                    task = tasks.removeLast();
                    // 允许添加任务的线程可以继续添加任务
                    tasks.notifyAll();
  
                }
                task.run();
            }
        }
    }
  
}
 
 
package multiplethread;
   
import java.io.File;
   
public class TestThread {
   
    static ThreadPool pool= new ThreadPool();
    public static void search(File file, String search) {
         
        if (file.isFile()) {
            if(file.getName().toLowerCase().endsWith(".java")){
                SearchFileTask task = new SearchFileTask(file, search);
                pool.add(task);
            }
        }
        if (file.isDirectory()) {
            File[] fs = file.listFiles();
            for (File f : fs) {
                search(f, search);
            }
        }
    }
       
    public static void main(String[] args) {
        File folder =new File("e:\project");
        search(folder,"Magic");
    }
}