增加 TenantFrameworkServiceImpl 的缓存，提升性能

yudao-framework/yudao-common/src/main/java/cn/iocoder/yudao/framework/common/util/cache/CacheUtils.java

+package cn.iocoder.yudao.framework.common.util.cache;
+
+import com.google.common.cache.CacheBuilder;
+import com.google.common.cache.CacheLoader;
+import com.google.common.cache.LoadingCache;
+
+import java.time.Duration;
+import java.util.concurrent.Executors;
+
+/**
+ * Cache 工具类
+ *
+ * @author 芋道源码
+ */
+public class CacheUtils {
+
+    public static <K, V> LoadingCache<K, V> buildAsyncReloadingCache(Duration duration, CacheLoader<K, V> loader) {
+        return CacheBuilder.newBuilder()
+                // 只阻塞当前数据加载线程，其他线程返回旧值
+                .refreshAfterWrite(duration)
+                // 通过 asyncReloading 实现全异步加载，包括 refreshAfterWrite 被阻塞的加载线程
+                .build(CacheLoader.asyncReloading(loader, Executors.newSingleThreadExecutor()));
+    }
+
+}

yudao-framework/yudao-spring-boot-starter-biz-tenant/pom.xml

@@ -63,6 +63,13 @@
             <artifactId>spring-boot-starter-test</artifactId>
             <scope>test</scope>
         </dependency>
+
+        <!-- 工具类相关 -->
+        <dependency>
+            <groupId>com.google.guava</groupId>
+            <artifactId>guava</artifactId>
+        </dependency>
+
     </dependencies>
 
 </project>

yudao-framework/yudao-spring-boot-starter-biz-tenant/src/main/java/cn/iocoder/yudao/framework/tenant/core/service/TenantFrameworkServiceImpl.java

 package cn.iocoder.yudao.framework.tenant.core.service;
 
 import cn.iocoder.yudao.framework.common.pojo.CommonResult;
+import cn.iocoder.yudao.framework.common.util.cache.CacheUtils;
 import cn.iocoder.yudao.module.system.api.tenant.TenantApi;
+import com.google.common.cache.CacheLoader;
+import com.google.common.cache.LoadingCache;
 import lombok.RequiredArgsConstructor;
+import lombok.SneakyThrows;
 
+import java.time.Duration;
 import java.util.List;
 
 /**
@@ -16,16 +21,45 @@ public class TenantFrameworkServiceImpl implements TenantFrameworkService {
 
     private final TenantApi tenantApi;
 
+    /**
+     * 针对 {@link #getTenantIds()} 的缓存
+     */
+    private final LoadingCache<Object, List<Long>> getTenantIdsCache = CacheUtils.buildAsyncReloadingCache(
+            Duration.ofMinutes(1L), // 过期时间 1 分钟
+            new CacheLoader<Object, List<Long>>() {
+
+                @Override
+                public List<Long> load(Object key) {
+                    CommonResult<List<Long>> tenantIdsResult = tenantApi.getTenantIds();
+                    tenantIdsResult.checkError();
+                    return tenantIdsResult.getData();
+                }
+
+            });
+
+    /**
+     * 针对 {@link #validTenant(Long)} 的缓存
+     */
+    private final LoadingCache<Long, CommonResult<Boolean>> validTenantCache = CacheUtils.buildAsyncReloadingCache(
+            Duration.ofMinutes(1L), // 过期时间 1 分钟
+            new CacheLoader<Long, CommonResult<Boolean>>() {
+
+                @Override
+                public CommonResult<Boolean> load(Long id) {
+                    return tenantApi.validTenant(id);
+                }
+
+            });
+
     @Override
     public List<Long> getTenantIds() {
-        CommonResult<List<Long>> tenantIdsResult = tenantApi.getTenantIds();
-        tenantIdsResult.checkError();
-        return tenantIdsResult.getData();
+        return getTenantIdsCache.getUnchecked(Boolean.TRUE);
     }
 
     @Override
+    @SneakyThrows
     public void validTenant(Long id) {
-        tenantApi.validTenant(id).checkError();
+        validTenantCache.getUnchecked(id).checkError();
     }
 
 }