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如何查看网站是哪家公司做的营销模式100个经典案例

news 2025/7/20 14:21:49

如何查看网站是哪家公司做的,营销模式100个经典案例,怎么自己做淘宝客网站,整合营销传播方法包括1、定义即 Guarded Suspension，用在一个线程等待另一个线程的执行结果要点有一个结果需要从一个线程传递到另一个线程，让他们关联同一个 GuardedObject 如果有结果不断从一个线程到另一个线程那么可以使用消息队列 JDK 中，join 的实现…

1、定义

即 Guarded Suspension，用在一个线程等待另一个线程的执行结果

要点

有一个结果需要从一个线程传递到另一个线程，让他们关联同一个 GuardedObject
如果有结果不断从一个线程到另一个线程那么可以使用消息队列
JDK 中，join 的实现、Future 的实现，采用的就是此模式
因为要等待另一方的结果，因此归类到同步模式

2、实现

class GuardedObject {
// 结果private Object response;private final Object lock = new Object();
// 获取结果public Object get() {synchronized (lock) {// 条件不满足则等待while (response == null) {try {lock.wait();} catch (InterruptedException e) {e.printStackTrace();}}return response;}}
// 产生结果public void complete(Object response) {synchronized (lock) {// 条件满足，通知等待线程this.response = response;lock.notifyAll();}}
}

3、应用

一个线程等待另一个线程的执行结果

public static void main(String[] args) {GuardedObject guardedObject = new GuardedObject();new Thread(() -> {try {// 子线程执行下载List<String> response = download(); // 模拟下载操作log.debug("download complete...");guardedObject.complete(response);} catch (IOException e) {e.printStackTrace();}}).start();
log.debug("waiting...");// 主线程阻塞等待Object response = guardedObject.get();log.debug("get response: [{}] lines", ((List<String>) response).size());

}

执行结果

08:42:18.568 [main] c.TestGuardedObject - waiting...
08:42:23.312 [Thread-0] c.TestGuardedObject - download complete...
08:42:23.312 [main] c.TestGuardedObject - get response: [3] lines

4、带超时版 GuardedObject

如果要控制超时时间呢

class GuardedObjectV2 {
private Object response;private final Object lock = new Object();
public Object get(long millis) {synchronized (lock) {// 1) 记录最初时间long begin = System.currentTimeMillis();// 2) 已经经历的时间long timePassed = 0;while (response == null) {// 4) 假设 millis 是 1000，结果在 400 时唤醒了，那么还有 600 要等long waitTime = millis - timePassed;log.debug("waitTime: {}", waitTime);if (waitTime <= 0) {log.debug("break...");break;}try {lock.wait(waitTime);  // 注意这里并不是 mills，防止虚假唤醒} catch (InterruptedException e) {e.printStackTrace();}// 3) 如果提前被唤醒，这时已经经历的时间假设为 400timePassed = System.currentTimeMillis() - begin;log.debug("timePassed: {}, object is null {}", timePassed, response == null);}return response;}}
public void complete(Object response) {synchronized (lock) {// 条件满足，通知等待线程this.response = response;log.debug("notify...");lock.notifyAll();}}
}

测试，没有超时

public static void main(String[] args) {GuardedObjectV2 v2 = new GuardedObjectV2();new Thread(() -> {sleep(1); // 睡眠1秒v2.complete(null);sleep(1);v2.complete(Arrays.asList("a", "b", "c"));}).start();
Object response = v2.get(2500);if (response != null) {log.debug("get response: [{}] lines", ((List<String>) response).size());} else {log.debug("can't get response");}
}

输出

08:49:39.917 [main] c.GuardedObjectV2 - waitTime: 2500
08:49:40.917 [Thread-0] c.GuardedObjectV2 - notify...
08:49:40.917 [main] c.GuardedObjectV2 - timePassed: 1003, object is null true
08:49:40.917 [main] c.GuardedObjectV2 - waitTime: 1497
08:49:41.918 [Thread-0] c.GuardedObjectV2 - notify...
08:49:41.918 [main] c.GuardedObjectV2 - timePassed: 2004, object is null false
08:49:41.918 [main] c.TestGuardedObjectV2 - get response: [3] lines

测试，超时

// 等待时间不足
List<String> lines = v2.get(1500);

输出

08:47:54.963 [main] c.GuardedObjectV2 - waitTime: 1500
08:47:55.963 [Thread-0] c.GuardedObjectV2 - notify...
08:47:55.963 [main] c.GuardedObjectV2 - timePassed: 1002, object is null true
08:47:55.963 [main] c.GuardedObjectV2 - waitTime: 498
08:47:56.461 [main] c.GuardedObjectV2 - timePassed: 1500, object is null true
08:47:56.461 [main] c.GuardedObjectV2 - waitTime: 0
08:47:56.461 [main] c.GuardedObjectV2 - break...
08:47:56.461 [main] c.TestGuardedObjectV2 - can't get response
08:47:56.963 [Thread-0] c.GuardedObjectV2 - notify...

5、多任务版 GuardedObject

图中 Futures 就好比居民楼一层的信箱（每个信箱有房间编号），左侧的 t0，t2，t4 就好比等待邮件的居民，右侧的 t1，t3，t5 就好比邮递员

如果需要在多个类之间使用 GuardedObject 对象，作为参数传递不是很方便，因此设计一个用来解耦的中间类，这样不仅能够解耦【结果等待者】和【结果生产者】，还能够同时支持多个任务的管理

新增 id 用来标识 Guarded Object

class GuardedObject {
// 标识 Guarded Objectprivate int id;
public GuardedObject(int id) {this.id = id;}
public int getId() {return id;}
// 结果private Object response;
// 获取结果// timeout 表示要等待多久 2000public Object get(long timeout) {synchronized (this) {// 开始时间 15:00:00long begin = System.currentTimeMillis();// 经历的时间long passedTime = 0;while (response == null) {// 这一轮循环应该等待的时间long waitTime = timeout - passedTime;// 经历的时间超过了最大等待时间时，退出循环if (timeout - passedTime <= 0) {break;}try {this.wait(waitTime); // 虚假唤醒 15:00:01} catch (InterruptedException e) {e.printStackTrace();}// 求得经历时间passedTime = System.currentTimeMillis() - begin; // 15:00:02  1s}return response;}}
// 产生结果public void complete(Object response) {synchronized (this) {// 给结果成员变量赋值this.response = response;this.notifyAll();}}
}

中间解耦类

class Mailboxes {private static Map<Integer, GuardedObject> boxes = new Hashtable<>();
private static int id = 1;// 产生唯一 idprivate static synchronized int generateId() {return id++;}
public static GuardedObject getGuardedObject(int id) {return boxes.remove(id);  // 注意这里的remove，防止堆溢出}
public static GuardedObject createGuardedObject() {GuardedObject go = new GuardedObject(generateId());boxes.put(go.getId(), go);return go;}
public static Set<Integer> getIds() {return boxes.keySet();}
}

业务相关类

class People extends Thread{@Overridepublic void run() {// 收信GuardedObject guardedObject = Mailboxes.createGuardedObject();log.debug("开始收信 id:{}", guardedObject.getId());Object mail = guardedObject.get(5000);log.debug("收到信 id:{}, 内容:{}", guardedObject.getId(), mail);}
}

class Postman extends Thread {private int id;private String mail;
public Postman(int id, String mail) {this.id = id;this.mail = mail;}
@Overridepublic void run() {GuardedObject guardedObject = Mailboxes.getGuardedObject(id);log.debug("送信 id:{}, 内容:{}", id, mail);guardedObject.complete(mail);}
}

测试

public static void main(String[] args) throws InterruptedException {for (int i = 0; i < 3; i++) {new People().start();}Sleeper.sleep(1);// 睡眠1秒for (Integer id : Mailboxes.getIds()) {new Postman(id, "内容" + id).start();}
}

某次运行结果

10:35:05.689 c.People [Thread-1] - 开始收信 id:3
10:35:05.689 c.People [Thread-2] - 开始收信 id:1
10:35:05.689 c.People [Thread-0] - 开始收信 id:2
10:35:06.688 c.Postman [Thread-4] - 送信 id:2, 内容:内容2
10:35:06.688 c.Postman [Thread-5] - 送信 id:1, 内容:内容1
10:35:06.688 c.People [Thread-0] - 收到信 id:2, 内容:内容2
10:35:06.688 c.People [Thread-2] - 收到信 id:1, 内容:内容1
10:35:06.688 c.Postman [Thread-3] - 送信 id:3, 内容:内容3
10:35:06.689 c.People [Thread-1] - 收到信 id:3, 内容:内容3

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