添加限流工具，修改模板onlyIf

src/main/java/com/ycwl/basic/ratelimiter/SlidingWindowRateLimiter.java

@@ -0,0 +1,26 @@
+package com.ycwl.basic.ratelimiter;
+
+import java.util.concurrent.ScheduledExecutorService;
+import java.util.concurrent.ScheduledThreadPoolExecutor;
+import java.util.concurrent.Semaphore;
+import java.util.concurrent.TimeUnit;
+
+
+public class SlidingWindowRateLimiter {
+    private final Semaphore semaphore;
+    private final ScheduledExecutorService scheduler = new ScheduledThreadPoolExecutor(1);
+
+    public SlidingWindowRateLimiter(int maxRequestsPerSecond) {
+        this.semaphore = new Semaphore(maxRequestsPerSecond);
+        // Schedule a task to release all permits every second
+        scheduler.scheduleAtFixedRate(() -> semaphore.release(maxRequestsPerSecond - semaphore.availablePermits()), 1, 1, TimeUnit.SECONDS);
+    }
+
+    public void allowRequest() throws InterruptedException {
+        semaphore.acquire();
+    }
+
+    public void shutdown() {
+        scheduler.shutdown();
+    }
+}