🎨 添加redis微信消息重复检查相关类

weixin-java-common/src/main/java/me/chanjar/weixin/common/api/WxMessageInRedisDuplicateChecker.java

@@ -0,0 +1,47 @@
+package me.chanjar.weixin.common.api;
+
+import lombok.RequiredArgsConstructor;
+import org.redisson.api.RBucket;
+import org.redisson.api.RedissonClient;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import java.util.concurrent.TimeUnit;
+
+/**
+ * 利用redis检查消息是否重复
+ *
+ */
+@RequiredArgsConstructor
+public class WxMessageInRedisDuplicateChecker implements WxMessageDuplicateChecker {
+
+  /**
+   * 过期时间
+   */
+  private int expire = 10;
+
+  private final Logger log = LoggerFactory.getLogger(getClass());
+
+  private final RedissonClient redissonClient;
+
+  /**
+   * messageId是否重复
+   *
+   * @param messageId messageId
+   * @return 是否
+   */
+  @Override
+  public boolean isDuplicate(String messageId) {
+    RBucket<String> r = redissonClient.getBucket("wx:message:duplicate:check:" + messageId);
+    boolean setSuccess = r.trySet("1", expire, TimeUnit.SECONDS);
+    return !setSuccess;
+  }
+
+  public int getExpire() {
+    return expire;
+  }
+
+  public void setExpire(int expire) {
+    this.expire = expire;
+  }
+}

weixin-java-common/src/test/java/me/chanjar/weixin/common/api/WxMessageInRedisDuplicateCheckerTest.java

@@ -0,0 +1,57 @@
+package me.chanjar.weixin.common.api;
+
+import org.redisson.Redisson;
+import org.redisson.api.RedissonClient;
+import org.redisson.config.Config;
+import org.redisson.config.TransportMode;
+import org.testng.annotations.BeforeTest;
+import org.testng.annotations.Test;
+
+import java.util.concurrent.TimeUnit;
+
+import static org.testng.Assert.assertFalse;
+import static org.testng.Assert.assertTrue;
+
+@Test
+public class WxMessageInRedisDuplicateCheckerTest {
+
+  private RedissonClient redissonClient;
+
+  @BeforeTest
+  public void init() {
+    Config config = new Config();
+    config.useSingleServer().setAddress("redis://127.0.0.1:6379");
+    config.setTransportMode(TransportMode.NIO);
+    this.redissonClient = Redisson.create(config);
+    checker = new WxMessageInRedisDuplicateChecker(redissonClient);
+    checker.setExpire(2);
+  }
+
+  private WxMessageInRedisDuplicateChecker checker;
+
+  public void test() throws InterruptedException {
+    Long[] msgIds = new Long[]{1L, 2L, 3L, 4L, 5L, 6L, 7L, 8L};
+
+    // 第一次检查
+    for (Long msgId : msgIds) {
+      boolean result = checker.isDuplicate(String.valueOf(msgId));
+      assertFalse(result);
+    }
+
+    // 过1秒再检查
+    TimeUnit.SECONDS.sleep(1);
+    for (Long msgId : msgIds) {
+      boolean result = checker.isDuplicate(String.valueOf(msgId));
+      assertTrue(result);
+    }
+
+    // 过1.5秒再检查
+    TimeUnit.MILLISECONDS.sleep(1500L);
+    for (Long msgId : msgIds) {
+      boolean result = checker.isDuplicate(String.valueOf(msgId));
+      assertFalse(result);
+    }
+
+  }
+
+}