├── .gitignore ├── LICENSE ├── README.md ├── images ├── add.png ├── img.png ├── img_1.png ├── img_2.png ├── img_3.png ├── img_4.png └── timeout.png ├── pom.xml └── src ├── .DS_Store ├── main ├── .DS_Store ├── java │ └── com │ │ └── taozhugongboy │ │ └── concurrentprogramming │ │ ├── ConcurrentProgrammingApplication.java │ │ ├── Processor.java │ │ ├── ProcessorImpl.java │ │ └── componet │ │ ├── ComponetConfiguration.java │ │ ├── ConfigProperties.java │ │ └── ProducerAndConsumerComponet.java └── resources │ ├── application.properties │ └── logback.xml └── test └── java └── com └── taozhugongboy └── concurrentprogramming └── ConcurrentProgrammingApplicationTests.java /.gitignore: -------------------------------------------------------------------------------- 1 | # Compiled class file 2 | *.class 3 | *.idea 4 | *.mvn 5 | *.cmd 6 | mvnw 7 | # Log file 8 | *.log 9 | 10 | # BlueJ files 11 | *.ctxt 12 | 13 | # Mobile Tools for Java (J2ME) 14 | .mtj.tmp/ 15 | 16 | # Package Files # 17 | *.jar 18 | *.war 19 | *.nar 20 | *.ear 21 | *.zip 22 | *.tar.gz 23 | *.rar 24 | 25 | # virtual machine crash logs, see http://www.java.com/en/download/help/error_hotspot.xml 26 | hs_err_pid* 27 | 28 | *.o 29 | *.lo 30 | *.la 31 | *.al 32 | .libs 33 | *.so 34 | *.so.[0-9]* 35 | *.a 36 | *.pyc 37 | *.pyo 38 | *.rej 39 | *~ 40 | #*# 41 | .#* 42 | .*.swp 43 | *.classpath 44 | *.project 45 | .settings 46 | *.prefs 47 | 48 | *.cache 49 | *.mule 50 | antx.properties 51 | *.metadata 52 | target/ 53 | *.pmd 54 | bin 55 | logs 56 | classes/ 57 | 58 | # idea ignore 59 | .idea/ 60 | *.ipr 61 | *.iml 62 | *.iws 63 | 64 | # system ignore 65 | .DS_Store 66 | Thumbs.db 67 | 68 | .dubbo/ 69 | dubbo-cache/ 70 | -------------------------------------------------------------------------------- /LICENSE: -------------------------------------------------------------------------------- 1 | Apache License 2 | Version 2.0, January 2004 3 | http://www.apache.org/licenses/ 4 | 5 | TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION 6 | 7 | 1. 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-------------------------------------------------------------------------------- 1 | # 架构说明 2 | ### 公众号：【陶朱公Boy】 3 | ![img_4.png](images/img_4.png) 4 | 5 | 此篇文章已经发表在作者个人公众号，有兴趣的小伙伴可以自行查阅。 6 | 7 | https://mp.weixin.qq.com/s/wTMyEUKej_RCaiIw0CPuIw 8 | 9 | 10 | 11 | -------------------------------------------------------------------------------- /images/add.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/TaoZhuGongBoy/ProducerAndConsumerComponet/26a199b71ad6c4b75d7ad9a902acf67cc0fab3c1/images/add.png -------------------------------------------------------------------------------- /images/img.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/TaoZhuGongBoy/ProducerAndConsumerComponet/26a199b71ad6c4b75d7ad9a902acf67cc0fab3c1/images/img.png -------------------------------------------------------------------------------- /images/img_1.png: 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-------------------------------------------------------------------------------- https://raw.githubusercontent.com/TaoZhuGongBoy/ProducerAndConsumerComponet/26a199b71ad6c4b75d7ad9a902acf67cc0fab3c1/images/img_4.png -------------------------------------------------------------------------------- /images/timeout.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/TaoZhuGongBoy/ProducerAndConsumerComponet/26a199b71ad6c4b75d7ad9a902acf67cc0fab3c1/images/timeout.png -------------------------------------------------------------------------------- /pom.xml: -------------------------------------------------------------------------------- 1 | 2 | 4 | 4.0.0 5 | 6 | org.springframework.boot 7 | spring-boot-starter-parent 8 | 2.2.2.RELEASE 9 | 10 | 11 | com.taozhugongboy 12 | concurrent-programming 13 | 1.0.0-SNAPSHOT 14 | 15 | 16 | TaoZhuGongBoy 17 | timzhang1987@gmail.com 18 | 19 | 20 | concurrent-programming 21 | concurrent-programming-demo 22 | 23 | 1.8 24 | 25 | 26 | 27 | org.springframework.boot 28 | spring-boot-starter 29 | 30 | 31 | 32 | org.springframework.boot 33 | spring-boot-starter-test 34 | test 35 | 36 | 37 | 38 | 39 | concurrent-programming 40 | 41 | 42 | src/main/resources 43 | true 44 | 45 | 46 | 47 | 48 | org.springframework.boot 49 | spring-boot-maven-plugin 50 | 51 | 52 | maven-compiler-plugin 53 | 54 | ${java.version} 55 | ${java.version} 56 | 57 | 58 | 59 | 60 | 61 | 62 | spring-milestones 63 | Spring Milestones 64 | https://repo.spring.io/milestone 65 | 66 | false 67 | 68 | 69 | 70 | 71 | 72 | spring-milestones 73 | Spring Milestones 74 | https://repo.spring.io/milestone 75 | 76 | false 77 | 78 | 79 | 80 | 81 | 82 | -------------------------------------------------------------------------------- /src/.DS_Store: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/TaoZhuGongBoy/ProducerAndConsumerComponet/26a199b71ad6c4b75d7ad9a902acf67cc0fab3c1/src/.DS_Store -------------------------------------------------------------------------------- /src/main/.DS_Store: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/TaoZhuGongBoy/ProducerAndConsumerComponet/26a199b71ad6c4b75d7ad9a902acf67cc0fab3c1/src/main/.DS_Store -------------------------------------------------------------------------------- /src/main/java/com/taozhugongboy/concurrentprogramming/ConcurrentProgrammingApplication.java: -------------------------------------------------------------------------------- 1 | package com.taozhugongboy.concurrentprogramming; 2 | 3 | import org.springframework.boot.SpringApplication; 4 | import org.springframework.boot.autoconfigure.SpringBootApplication; 5 | 6 | @SpringBootApplication 7 | public class ConcurrentProgrammingApplication { 8 | 9 | public static void main(String[] args) { 10 | SpringApplication.run(ConcurrentProgrammingApplication.class, args); 11 | } 12 | 13 | } 14 | -------------------------------------------------------------------------------- /src/main/java/com/taozhugongboy/concurrentprogramming/Processor.java: -------------------------------------------------------------------------------- 1 | package com.taozhugongboy.concurrentprogramming; 2 | 3 | import java.util.List; 4 | 5 | /** 6 | * 回调接口 7 | * @author taozhugongBoy 8 | */ 9 | public interface Processor { 10 | void process(List list); 11 | } 12 | -------------------------------------------------------------------------------- /src/main/java/com/taozhugongboy/concurrentprogramming/ProcessorImpl.java: -------------------------------------------------------------------------------- 1 | package com.taozhugongboy.concurrentprogramming; 2 | 3 | import java.util.List; 4 | 5 | /** 6 | * @ClassName ProcessorImpl 7 | * @Description TODO 8 | * @Author zhangfengshi 9 | * @Date 2022/10/27 10 | * @Version 1.0.0 11 | */ 12 | public class ProcessorImpl implements Processor{ 13 | @Override 14 | public void process(List list) { 15 | 16 | } 17 | } 18 | -------------------------------------------------------------------------------- /src/main/java/com/taozhugongboy/concurrentprogramming/componet/ComponetConfiguration.java: -------------------------------------------------------------------------------- 1 | package com.taozhugongboy.concurrentprogramming.componet; 2 | 3 | 4 | import com.taozhugongboy.concurrentprogramming.ProcessorImpl; 5 | import org.springframework.beans.factory.annotation.Autowired; 6 | import org.springframework.boot.context.properties.EnableConfigurationProperties; 7 | import org.springframework.context.annotation.Bean; 8 | import org.springframework.context.annotation.Configuration; 9 | 10 | 11 | @Configuration 12 | @EnableConfigurationProperties(ConfigProperties.class) 13 | public class ComponetConfiguration { 14 | 15 | @Autowired 16 | private ConfigProperties configProperties; 17 | 18 | @Bean 19 | public ProducerAndConsumerComponet registBean() { 20 | return new ProducerAndConsumerComponet(configProperties.getThreadNum(), configProperties.getQueueSizeLimit(), configProperties.getPeriod(), configProperties.getCapacity(), new ProcessorImpl()); 21 | } 22 | 23 | 24 | } 25 | -------------------------------------------------------------------------------- /src/main/java/com/taozhugongboy/concurrentprogramming/componet/ConfigProperties.java: -------------------------------------------------------------------------------- 1 | package com.taozhugongboy.concurrentprogramming.componet; 2 | 3 | import org.springframework.boot.context.properties.ConfigurationProperties; 4 | 5 | 6 | @ConfigurationProperties(prefix = "config") 7 | public class ConfigProperties { 8 | private Integer threadNum; 9 | private Integer period; 10 | private Integer queueSizeLimit; 11 | 12 | private Integer capacity; 13 | 14 | 15 | public Integer getThreadNum() { 16 | return threadNum; 17 | } 18 | 19 | public void setThreadNum(Integer threadNum) { 20 | this.threadNum = threadNum; 21 | } 22 | 23 | public Integer getPeriod() { 24 | return period; 25 | } 26 | 27 | public void setPeriod(Integer period) { 28 | this.period = period; 29 | } 30 | 31 | public Integer getQueueSizeLimit() { 32 | return queueSizeLimit; 33 | } 34 | 35 | public void setQueueSizeLimit(Integer queueSizeLimit) { 36 | this.queueSizeLimit = queueSizeLimit; 37 | } 38 | 39 | public Integer getCapacity() { 40 | return capacity; 41 | } 42 | 43 | public void setCapacity(Integer capacity) { 44 | this.capacity = capacity; 45 | } 46 | } 47 | -------------------------------------------------------------------------------- /src/main/java/com/taozhugongboy/concurrentprogramming/componet/ProducerAndConsumerComponet.java: -------------------------------------------------------------------------------- 1 | package com.taozhugongboy.concurrentprogramming.componet; 2 | 3 | import com.taozhugongboy.concurrentprogramming.Processor; 4 | import org.slf4j.Logger; 5 | import org.slf4j.LoggerFactory; 6 | 7 | import java.util.ArrayList; 8 | import java.util.List; 9 | import java.util.Random; 10 | import java.util.concurrent.*; 11 | import java.util.concurrent.atomic.AtomicInteger; 12 | import java.util.concurrent.locks.LockSupport; 13 | 14 | /** 15 | * 生产者消费者组件 16 | * @author taozhugongBoy 17 | */ 18 | public class ProducerAndConsumerComponet { 19 | private final static Logger log = LoggerFactory.getLogger(ProducerAndConsumerComponet.class); 20 | 21 | //组件持有一个工作线程对象数组 22 | private final WorkThread[] workThreads; 23 | private AtomicInteger index; 24 | private static final Random r = new Random(); 25 | //任务定时器 26 | private static ScheduledExecutorService scheduleThreadPool = new ScheduledThreadPoolExecutor(1); 27 | //组件初始化完成工作线程的新建 28 | private static ExecutorService executorService = Executors.newCachedThreadPool(); 29 | 30 | /** 31 | * 构造器 32 | * @param threadNum 默认新建的消费者线程个数 33 | * @param limitSize 队列长度阈值;超过将唤醒阻塞的线程 34 | * @param period 工作线程对象的timeout方法前后两次执行的时间间隔周期 35 | * @param capacity 工作线程内部的有界阻塞队列的初始容量大小 36 | * @param processor 回调接口(初始化组价实例的时候需要传递) 37 | */ 38 | public ProducerAndConsumerComponet(int threadNum,int limitSize, int period, int capacity, Processor processor) { 39 | this.workThreads = new WorkThread[threadNum]; 40 | if (threadNum > 1) { 41 | this.index = new AtomicInteger(); 42 | } 43 | for(int i = 0; i < threadNum; ++i) { 44 | WorkThread workThread = new WorkThread("workThread"+ "_" + i, limitSize, period, capacity, processor); 45 | this.workThreads[i] = workThread; 46 | 47 | executorService.submit(workThread); 48 | //开启threadNum个定时任务，每个任务各自检查各个工作线程对象内部的timeout方法，查看前后两次的timeout方法执行周期 49 | scheduleThreadPool.scheduleAtFixedRate(workThread::timeout, r.nextInt(50), period, TimeUnit.MILLISECONDS); 50 | } 51 | } 52 | 53 | /** 54 | * 生产者线程将对象添加到对应消费者线程对象内部的阻塞队列中去
55 | * 内部采用HASH取模算法进行动态路由 56 | * @param item 待添加的对象 57 | * @return true:添加成功 false:添加失败 58 | */ 59 | public boolean add(T item) { 60 | // log.info("add item={}",item); 61 | int len = this.workThreads.length; 62 | //log.info("add len..."+len); 63 | if (len == 1) { 64 | return this.workThreads[0].add(item); 65 | } else { 66 | int mod = this.index.incrementAndGet() % len; 67 | // log.info("路由到this.workThreads[mod]={}",mod); 68 | return this.workThreads[mod].add(item); 69 | } 70 | } 71 | 72 | /** 73 | * 消费者线程 74 | */ 75 | private static class WorkThread implements Runnable { 76 | /** 77 | * 工作线程命名 78 | */ 79 | private final String threadName; 80 | /** 81 | * 队列中允许存放元素个数限制
82 | * 超出将从队列中取出此大小的元素转成List对象 83 | */ 84 | private final int queueSizeLimit; 85 | /** 86 | * 前后两个任务的执行周期 87 | */ 88 | private int period; 89 | /** 90 | * 用来记录任务的即时处理时间 91 | */ 92 | private volatile long lastFlushTime; 93 | 94 | /** 95 | * 当前工作线程对象 96 | */ 97 | private volatile Thread currentThread; 98 | 99 | /** 100 | * 工作线程对象内部的阻塞队列 101 | */ 102 | private final BlockingQueue queue; 103 | /** 104 | * 回调接口 105 | */ 106 | private final Processor processor; 107 | 108 | 109 | /** 110 | * 消费者线程构造器 111 | * @param threadName 线程名 112 | * @param queueSizeLimit 指定队列阈值(可配置) 113 | * @param period 工作线程对象的timeout方法前后两次执行的时间间隔周期(可配置) 114 | * @param capacity 阻塞队列初始容量 115 | * @param processor 回调接口 116 | */ 117 | public WorkThread(String threadName, int queueSizeLimit, int period, int capacity, Processor processor) { 118 | this.threadName = threadName; 119 | this.queueSizeLimit = queueSizeLimit; 120 | this.period = period; 121 | this.lastFlushTime = System.currentTimeMillis(); 122 | this.processor = processor; 123 | this.queue = new ArrayBlockingQueue(capacity); 124 | } 125 | 126 | /** 127 | * 往阻塞队列中添加元素 128 | * @param item 添加的对象 129 | * @return true:添加成功 false:添加失败 130 | */ 131 | public boolean add(T item) { 132 | // log.info("add result:"+item); 133 | boolean result = this.queue.offer(item); 134 | // log.info("resultP{}",result); 135 | this.checkQueueSize(); 136 | return result; 137 | } 138 | 139 | /** 140 | * 当前时间与上次任务处理时间差是否超过指定阈值;如果超过触发start方法 141 | */ 142 | public void timeout() { 143 | log.info("start timeout ...{}",currentThread.getName()); 144 | // log.info("{}====check timeout",currentThread.getName()); 145 | if (System.currentTimeMillis() - this.lastFlushTime >= (long)this.period) { 146 | log.info("当前时间={}距离上次任务处理时间={}周期={}超出指定阈值={}",System.currentTimeMillis(),lastFlushTime,(System.currentTimeMillis() - this.lastFlushTime) ,period); 147 | this.start(); 148 | } 149 | 150 | } 151 | 152 | /** 153 | * 唤醒被阻塞的工作线程 154 | */ 155 | private void start() { 156 | log.info("执行start方法，唤醒被阻塞的线程"+currentThread.getName()); 157 | LockSupport.unpark(this.currentThread); 158 | } 159 | 160 | /** 161 | * 判断队列实际长度是否超过指定阈值;如果超过触发start方法 162 | */ 163 | private void checkQueueSize() { 164 | if (this.queue.size() > this.queueSizeLimit) { 165 | log.info("{}队列大小={}超出指定阈值={}",currentThread.getName(),this.queue.size() ,queueSizeLimit); 166 | this.start(); 167 | } 168 | 169 | } 170 | 171 | /** 172 | * 将队列中的元素添加到指定集合(初始容量限制) 173 | */ 174 | public void flush() { 175 | //记录最新任务处理开始时间 176 | this.lastFlushTime = System.currentTimeMillis(); 177 | if(queue.isEmpty()){ 178 | log.info("阻塞队列中元素为空，不需要处理..."); 179 | return; 180 | } 181 | List temp = new ArrayList(this.queueSizeLimit); 182 | int size = this.queue.drainTo(temp, this.queueSizeLimit); 183 | if (size > 0) { 184 | log.info("{}被唤醒后,开始执行任务:从队列中腾出大小为{}的数据且转成List对象",currentThread.getName(),size); 185 | try { 186 | //执行回调函数 187 | this.processor.process(temp); 188 | } catch (Throwable var4) { 189 | System.out.println("process error"); 190 | } 191 | } 192 | 193 | } 194 | 195 | /** 196 | * 判断队列实际大小是否超过指定阈值亦或距离上次任务处理时间差是否超过指定阈值 197 | * @return true:满足触发条件 false:不满足触发条件 198 | */ 199 | private boolean canFlush() { 200 | return this.queue.size() > this.queueSizeLimit || System.currentTimeMillis() - this.lastFlushTime > (long)this.period; 201 | } 202 | 203 | @Override 204 | public void run() { 205 | this.currentThread = Thread.currentThread(); 206 | this.currentThread.setName(this.threadName); 207 | //当前线程没有被其他线程打断 208 | while(!this.currentThread.isInterrupted()) { 209 | //死循环的判断是否满足触发条件(队列实际大小是否超出指定阈值或距离上次任务时间是否超出指定阈值)，如果未满足将阻塞当前线程，避免死循环给系统带来性能开销 210 | while(!this.canFlush()) { 211 | //当前工作线程被阻塞 212 | log.info("线程被阻塞..."); 213 | LockSupport.park(this); 214 | } 215 | //一旦add方法执行的时候判断存放的阻塞队列元素大小超出自定制阈值亦或距离上次任务处理时间差超出指定阈值，就会调用LockSupport.unpark方法解除阻塞的线程 216 | //一旦线程被解除阻塞，就会触发此方法，将队列元素转成List对象且调用已经注册的回调函数 217 | // log.info("阻塞线程被唤醒"); 218 | this.flush(); 219 | } 220 | 221 | } 222 | } 223 | } 224 | -------------------------------------------------------------------------------- /src/main/resources/application.properties: -------------------------------------------------------------------------------- 1 | 2 | config.threadNum=2 3 | config.period=500 4 | config.queueSizeLimit=1000 5 | config.capacity=10 6 | 7 | 8 | -------------------------------------------------------------------------------- /src/main/resources/logback.xml: -------------------------------------------------------------------------------- 1 | 2 | 3 | concurrent-programming 4 | 5 | 7 | 8 | 9 | 10 | 12 | 13 | %date [%thread]%X{mdcData} %-5level %logger{10} [%file:%line] - %msg%n 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | -------------------------------------------------------------------------------- /src/test/java/com/taozhugongboy/concurrentprogramming/ConcurrentProgrammingApplicationTests.java: -------------------------------------------------------------------------------- 1 | package com.taozhugongboy.concurrentprogramming; 2 | 3 | import com.taozhugongboy.concurrentprogramming.componet.ProducerAndConsumerComponet; 4 | import org.junit.jupiter.api.DisplayName; 5 | import org.junit.jupiter.api.Test; 6 | import org.junit.runner.RunWith; 7 | import org.springframework.beans.factory.annotation.Autowired; 8 | import org.springframework.boot.test.context.SpringBootTest; 9 | import org.springframework.test.context.junit4.SpringRunner; 10 | 11 | import java.util.Random; 12 | import java.util.concurrent.TimeUnit; 13 | 14 | @RunWith(SpringRunner.class) 15 | @SpringBootTest(classes = ConcurrentProgrammingApplication.class) 16 | class ConcurrentProgrammingApplicationTests { 17 | 18 | @Autowired 19 | private ProducerAndConsumerComponet producerAndConsumerComponet; 20 | 21 | 22 | /** 23 | * 前置条件： 24 | * #主件初始化默认新增两个工作线程 25 | * config.threadNum=2 26 | * config.period=12000 27 | * config.queueSizeLimit=3 28 | * config.capacity=10 29 | */ 30 | @DisplayName("用例一:队列大小超出指定阈值") 31 | @Test 32 | void add() { 33 | for (int i = 0; i < 10; i++) { 34 | 35 | producerAndConsumerComponet.add("1"); 36 | } 37 | try { 38 | TimeUnit.SECONDS.sleep(10); 39 | } catch (Exception e) { 40 | e.printStackTrace(); 41 | } 42 | } 43 | 44 | @Test 45 | void timeout() { 46 | try { 47 | for (int i = 0; i < 100; i++) { 48 | 49 | producerAndConsumerComponet.add("1"); 50 | 51 | TimeUnit.MILLISECONDS.sleep( new Random().nextInt(50)); 52 | } 53 | 54 | TimeUnit.SECONDS.sleep(5); 55 | 56 | 57 | } catch (Exception e) { 58 | e.printStackTrace(); 59 | } 60 | } 61 | } 62 | --------------------------------------------------------------------------------