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Commit f72f232

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更新线程状态,终止
1 parent 7f35a7b commit f72f232

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19 files changed

+178
-14
lines changed

19 files changed

+178
-14
lines changed

‎.idea/inspectionProfiles/Project_Default.xml

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‎concurrency/src/main/java/com/javaedge/concurrency/ConcurrencyApplication.java

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import org.springframework.web.servlet.config.annotation.WebMvcConfigurerAdapter;
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/**
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* @author sss
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* @author JavaEdge
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*/
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@SpringBootApplication
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public class ConcurrencyApplication extends WebMvcConfigurerAdapter{

‎concurrency/src/main/java/com/javaedge/concurrency/ConcurrencyTest.java

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import java.util.concurrent.Semaphore;
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/**
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* @author sss
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* @author JavaEdge
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*/
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@Slf4j
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@NotThreadSafe
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package com.javaedge.concurrency.common.state;
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/**
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* 多线程运行状态切换示例
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*
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* @author JavaEdge
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* @date 2019年8月26日
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*/
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public class ThreadState {
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public static Thread thread1;
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public static ThreadState obj;
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public static void main(String[] args) throws Exception {
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// 第一种状态切换 - 新建 -> 运行 -> 终止
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System.out.println("======= 第一种状态切换 - 新建 -> 运行 -> 终止 =======");
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Thread thread1 = new Thread(() -> {
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System.out.println("thread1当前状态:" + Thread.currentThread().getState().toString());
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System.out.println("thread1 执行");
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});
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System.out.println("未调用start方法,thread1当前状态:" + thread1.getState().toString());
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thread1.start();
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// 等待thread1执行结束,再看状态
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Thread.sleep(2000L);
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System.out.println("等待2s,再看thread1当前状态:" + thread1.getState().toString());
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// thread1.start(); 线程终止之后,再调用start方法,会抛IllegalThreadStateException
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System.out.println("-------------------------------------");
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System.out.println("======= 第二种:新建 -> 运行 -> 等待 -> 运行 -> 终止(sleep方式) =======");
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Thread thread2 = new Thread(() -> {
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try {
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// 将线程2移动到等待状态,1500ms后自动唤醒
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Thread.sleep(1500);
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} catch (InterruptedException e) {
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e.printStackTrace();
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}
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System.out.println("thread2当前状态:" + Thread.currentThread().getState().toString());
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System.out.println("thread2 执行");
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});
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System.out.println("未调用start方法,thread2当前状态:" + thread2.getState().toString());
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thread2.start();
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System.out.println("调用start方法,thread2当前状态:" + thread2.getState().toString());
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// 等待200毫秒,再看状态
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Thread.sleep(200L);
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System.out.println("等待200毫秒,再看thread2当前状态:" + thread2.getState().toString());
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// 再等待3秒,让thread2执行完毕,再看状态
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Thread.sleep(3000L);
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System.out.println("等待3秒,再看thread2当前状态:" + thread2.getState().toString());
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System.out.println("-------------------------------------");
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System.out.println("======= 第三种:新建 -> 运行 -> 阻塞 -> 运行 -> 终止 =======");
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Thread thread3 = new Thread(() -> {
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synchronized (ThreadState.class) {
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System.out.println("thread3当前状态:" + Thread.currentThread().getState().toString());
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System.out.println("thread3 执行了");
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}
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});
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synchronized (ThreadState.class) {
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System.out.println("未调用start方法,thread3当前状态:" + thread3.getState().toString());
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thread3.start();
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System.out.println("调用start方法,thread3当前状态:" + thread3.getState().toString());
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// 等待200毫秒,再看状态
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Thread.sleep(200L);
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System.out.println("等待200毫秒,再看thread3当前状态:" + thread3.getState().toString());
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}
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// 再等待3秒,让thread3执行完毕,再看状态
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Thread.sleep(3000L);
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System.out.println("等待3秒,让thread3抢到锁,再看thread3当前状态:" + thread2.getState().toString());
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}
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}
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package com.javaedge.concurrency.common.stop;
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/**
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* 通过状态位来判断
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*
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* @author JavaEdge
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* @date 2019年8月29日
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*/
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public class FlagStopThread extends Thread {
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public volatile static boolean flag = true;
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public static void main(String[] args) throws InterruptedException {
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new Thread(() -> {
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try {
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while (flag) { // 判断是否运行
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System.out.println("运行中");
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Thread.sleep(1000L);
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}
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} catch (InterruptedException e) {
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e.printStackTrace();
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}
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}).start();
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// 3秒之后,将状态标志改为False,代表不继续运行
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Thread.sleep(3000L);
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flag = false;
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System.out.println("程序运行结束");
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}
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}
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package com.javaedge.concurrency.common.stop;
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/**
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* 线程stop强制性中止,破坏线程安全的示例
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*
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* @author JavaEdge
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* @date 2019年8月26日
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*/
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public class StopThread extends Thread {
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private int i = 0, j = 0;
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@Override
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public void run() {
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synchronized (this) {
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// 增加同步锁,确保线程安全
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++i;
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try {
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// 休眠10秒,模拟耗时操作
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Thread.sleep(10000);
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} catch (InterruptedException e) {
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e.printStackTrace();
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}
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++j;
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}
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}
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/**
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* 打印i和j
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*/
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public void print() {
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System.out.println("i=" + i + " j=" + j);
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}
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}
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package com.javaedge.concurrency.common.stop;
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/**
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* 线程stop强制性中止,破坏线程安全的示例
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*
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* @author JavaEdge
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* @date 2019年8月26日
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*/
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public class ThreadStop {
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public static void main(String[] args) throws InterruptedException {
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StopThread thread = new StopThread();
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thread.start();
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// 休眠1秒,确保i变量自增成功
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Thread.sleep(1000);
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// 暂停线程
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// thread.stop(); // 错误的终止
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thread.interrupt(); // 正确的终止
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while (thread.isAlive()) {
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// 确保线程已经终止
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} // 输出结果
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thread.print();
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}
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}
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‎concurrency/src/main/java/com/javaedge/concurrency/example/cache/CacheController.java

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import org.springframework.web.bind.annotation.ResponseBody;
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/**
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* @author JavaEdge
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*/
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@Controller
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@RequestMapping("/cache")

‎concurrency/src/main/java/com/javaedge/concurrency/example/cache/RedisClient.java

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import javax.annotation.Resource;
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/**
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* @author JavaEdge
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*/
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@Component
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public class RedisClient {

‎concurrency/src/main/java/com/javaedge/concurrency/example/cache/RedisConfig.java

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import redis.clients.jedis.JedisPool;
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/**
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* @author JavaEdge
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*/
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@Configuration
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public class RedisConfig {

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