Java多线程多请求方法

Question

我想向"test.com"发送一个从0到100的请求,我的代码将每秒发送一个请求......这样程序将需要100秒才能完成.

我想要做的是设置10个线程同时运行,使线程1从(0,10); 线程2从(10,20)开始...依此类推,这样程序只需要10秒左右才能完成,这可能吗？怎么能成功呢？

import java.io.InputStreamReader;
import org.apache.commons.httpclient.HttpClient;
import org.apache.commons.httpclient.methods.PostMethod;

public class Palomo implements Runnable {
    String url = "http://test.com";
    HttpClient client = null;
    PostMethod method = null;
    BufferedReader br = null;
    String contents = null;

    public void run() {
        for (int i = 0; i <= 100; i++) {
            synchronized (this) {
                doPost(i);
            }
                      try {
        Thread.sleep(1000);
        } catch (InterruptedException e) {
        e.printStackTrace();
        }
        }
    }

    public void doPost(int i) {
        try {
            client = new HttpClient();
            method = new PostMethod(url);

            this.method.addParameter("myPostRequest", Integer.toString(i));

            client.executeMethod(method);

        } catch (Exception e) {
            e.printStackTrace();
        } finally {
            method.releaseConnection();
        }
    }

    public static void main(String[] args) {
        new Thread(new Palomo()).start();
    }
}

非常感谢 !

编辑

阅读你给我的指示,我创造了这个可怕的怪物......

import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;

public class SimpExec {
    public static void main(String args[]) {

        ExecutorService es = Executors.newFixedThreadPool(4);

        es.execute(new MyThread("A"));
        es.execute(new MyThread("B"));
        es.execute(new MyThread("C"));
        es.execute(new MyThread("D"));

        es.shutdown();
    }
}

class MyThread implements Runnable {
    String name;

    MyThread(String n) {
        name = n;
        new Thread(this);
    }

    public void run() {
        if (name=="A"){
            for (int i=1;i<=10;i++){
                System.out.println(i);
                try {
                    Thread.sleep(1000);
                } catch (InterruptedException e) {
                    // TODO Auto-generated catch block
                    e.printStackTrace();
                }
            }
        }
        if (name=="B"){
            for (int i=10;i<=20;i++){
                System.out.println(i);
                try {
                    Thread.sleep(1000);
                } catch (InterruptedException e) {
                    // TODO Auto-generated catch block
                    e.printStackTrace();
                }
            }
        }
        if (name=="C"){
            for (int i=20;i<=30;i++){
                System.out.println(i);
                try {
                    Thread.sleep(1000);
                } catch (InterruptedException e) {
                    // TODO Auto-generated catch block
                    e.printStackTrace();
                }
            }
        }
        if (name=="D"){
            for (int i=30;i<=40;i++){
                System.out.println(i);
                try {
                    Thread.sleep(1000);
                } catch (InterruptedException e) {
                    // TODO Auto-generated catch block
                    e.printStackTrace();
                }
            }
        }
    }
}

我知道这可能是你看过的最糟糕的代码片段,但是正在制作我想要的代码,如果你能给我一些关于如何以正确的方式实现这一目标的指示,这将是非常好的.

感谢您的所有伟大建议

Answer 1

您应该查看为实现此类事情而创建的ExecutorService.

您可以使用创建10个线程的池,Executors.newFixedThreadPool(10);然后提交Runnable要执行的任务().池负责在线程之间调度任务.