java多线程实例

import java.util.HashMap;
import java.util.Map;
import java.util.Map.Entry;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;

/**
 * java 线程池实例
 * @author lixin
 */
public class Test {
    public static void main(String[] args) {
        //采用固定大小线程池
        ExecutorService exe = Executors.newFixedThreadPool(2);
        //要处理的数据
        Map<String, String> map = new HashMap<String, String>();
        map.put("a", "aaaa");
        map.put("b", "bbbb");
        map.put("c", "cc");
        map.put("d", "d");
        map.put("e", "e");

        String m;
        int i = 0;
        for(Entry<String, String> entry: map.entrySet()) {
            m=entry.getValue();
            //调用线程池
            exe.execute(new MyThread(i,exe,m));
            i++;
        }
    }
}

class MyThread implements Runnable
{
    int id;
    ExecutorService exe;
    //m即实例对象
    String m = "";
    MyThread(int id, ExecutorService exe,String m) {
        this.exe = exe;
        this.id = id;
        this.m = m;
    }
    public void run() {
        //业务处理
        System.out.println("exe info:" + exe.toString()+"start");
        try {
            Thread.sleep(5000L);
        } catch (Exception e) {
            System.out.println(e);
        }
        System.out.println(id + "end");
    }
}