java基础并发测试代码

2024-07-01 00:28:32 +08:00
parent da0e11337c
commit 30d826bb8e
23 changed files with 1258 additions and 25 deletions
@@ -0,0 +1,41 @@
+package concurrent.queue;
+
+import lombok.AllArgsConstructor;
+
+import java.util.concurrent.ArrayBlockingQueue;
+import java.util.concurrent.ConcurrentLinkedQueue;
+
+@AllArgsConstructor
+public class BlockingQueueTest {
+    ArrayBlockingQueue<Integer> arrayBlockingQueue;
+    Integer methodNumber;
+
+    public void offerTest() {
+        ConcurrentLinkedQueue<Integer> concurrentLinkedQueue = new ConcurrentLinkedQueue<>();
+        boolean offer = arrayBlockingQueue.offer(1);
+        if (!offer) {
+            System.out.println("队列满了");
+            return;
+        }
+        System.out.println("添加成功");
+    }
+
+    public void addTest() {
+        boolean offer = arrayBlockingQueue.add(1);
+        if (!offer) {
+            System.out.println("队列满了");
+            return;
+        }
+        System.out.println("添加成功");
+    }
+
+    public void putTest() throws InterruptedException {
+        arrayBlockingQueue.put(1);
+        System.out.println("添加成功");
+    }
+
+    public static void main(String[] args) {
+
+    }
+}
+
@@ -0,0 +1,74 @@
+package concurrent.queue;
+
+import lombok.Data;
+
+import java.time.LocalDateTime;
+import java.time.format.DateTimeFormatter;
+import java.util.concurrent.DelayQueue;
+import java.util.concurrent.Delayed;
+import java.util.concurrent.TimeUnit;
+
+/**
+ * @description: 延迟队列
+ * @author: wangyl
+ * @date: 2024/6/30
+ */
+@Data
+public class DelayedQueue implements Delayed {
+    /**
+     * 延迟时间
+     */
+    private long time;
+    /**
+     * 延迟任务名称
+     */
+    private String name;
+    /**
+     * 延迟任务创建时间
+     */
+    private String timestamp = LocalDateTime.now().format(DateTimeFormatter.ofPattern("yyyy-MM-dd HH:mm:ss"));
+
+
+    public DelayedQueue(String name, long time, TimeUnit unit) {
+        this.name = name;
+        this.time = System.currentTimeMillis() + (time > 0 ? unit.toMillis(time) : 0);
+    }
+
+    @Override
+    public long getDelay(TimeUnit unit) {
+        return time - System.currentTimeMillis();
+    }
+
+    @Override
+    public int compareTo(Delayed o) {
+        DelayedQueue Order = (DelayedQueue) o;
+        long diff = this.time - Order.time;
+        if (diff <= 0) {
+            return -1;
+        } else {
+            return 1;
+        }
+    }
+
+    public static void main(String[] args) throws InterruptedException {
+        DelayedQueue Order1 = new DelayedQueue("Order1", 5, TimeUnit.SECONDS);
+        DelayedQueue Order2 = new DelayedQueue("Order2", 10, TimeUnit.SECONDS);
+        DelayedQueue Order3 = new DelayedQueue("Order3", 15, TimeUnit.SECONDS);
+        DelayQueue<DelayedQueue> delayQueue = new DelayQueue<>();
+        delayQueue.put(Order1);
+        delayQueue.put(Order2);
+        delayQueue.put(Order3);
+
+        System.out.println("订单延迟队列开始时间:" + LocalDateTime.now()
+                .format(DateTimeFormatter.ofPattern("yyyy-MM-dd HH:mm:ss")));
+        while (delayQueue.size() != 0) {
+            /**
+             * 取队列头部元素是否过期
+             */
+            DelayedQueue take = delayQueue.take();
+            System.out.format("订单:{%s}被取消, 放入时间{%s},取消时间:{%s}\n", take.getName(), take.getTimestamp(), LocalDateTime.now()
+                    .format(DateTimeFormatter.ofPattern("yyyy-MM-dd HH:mm:ss")));
+            Thread.sleep(1000);
+        }
+    }
+}