From a70919b4f7baab856125f36e5bd41f5ee81be680 Mon Sep 17 00:00:00 2001
From: huliguo <2023611923@qq.com>
Date: 星期二, 13 五月 2025 09:41:35 +0800
Subject: [PATCH] 修改年份切换字段不为必填

---
 src/main/java/com/cl/service/impl/TokenBlacklistService.java |   55 +++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 files changed, 55 insertions(+), 0 deletions(-)

diff --git a/src/main/java/com/cl/service/impl/TokenBlacklistService.java b/src/main/java/com/cl/service/impl/TokenBlacklistService.java
new file mode 100644
index 0000000..d077d07
--- /dev/null
+++ b/src/main/java/com/cl/service/impl/TokenBlacklistService.java
@@ -0,0 +1,55 @@
+package com.cl.service.impl;
+
+
+import com.cl.util.JwtUtil;
+import io.jsonwebtoken.Claims;
+import lombok.extern.slf4j.Slf4j;
+import org.springframework.scheduling.annotation.Scheduled;
+import org.springframework.stereotype.Service;
+
+import java.util.Collections;
+
+import java.util.Date;
+import java.util.Set;
+import java.util.concurrent.ConcurrentHashMap;
+import java.util.concurrent.TimeUnit;
+
+
+@Service
+@Slf4j
+public class TokenBlacklistService {
+    // 使用ConcurrentHashMap或Redis存储黑名单
+    private final Set<String> blacklist = Collections.newSetFromMap(new ConcurrentHashMap<>());
+
+    public void addToBlacklist(String token) {
+        blacklist.add(token);
+    }
+
+    public boolean isBlacklisted(String token) {
+        return blacklist.contains(token);
+    }
+
+
+    /**
+     * 定时清理过期令牌(每2小时执行一次)
+     */
+    @Scheduled(fixedRate = 2, timeUnit = TimeUnit.HOURS)
+    public void cleanupExpiredTokens() {
+        log.info("开始清理过期token");
+        blacklist.removeIf(this::isTokenExpired);
+    }
+    /**
+     * 检查JWT Token是否过期
+     * @param token JWT Token字符串
+     * @return true-已过期,false-未过期
+     */
+    public boolean isTokenExpired(String token) {
+        try {
+            Claims claims = JwtUtil.parseJWT(token);
+            return claims.getExpiration().before(new Date());
+        } catch (Exception e) {
+            // 如果解析过程中出现异常(如Token无效、已过期等),视为已过期
+            return true;
+        }
+    }
+}
\ No newline at end of file

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