diff --git a/GFramework.Core.Tests/resource/ResourceManagerTests.cs b/GFramework.Core.Tests/resource/ResourceManagerTests.cs
index 61a12ea..d5eb90c 100644
--- a/GFramework.Core.Tests/resource/ResourceManagerTests.cs
+++ b/GFramework.Core.Tests/resource/ResourceManagerTests.cs
@@ -200,7 +200,7 @@ public class ResourceManagerTests
         var handle = _resourceManager.GetHandle<TestResource>("test/resource1.txt");
         handle!.Dispose();
 
-        // 资源应该仍然存在，因为还有一个初始引用
+        // 引用计数降为 0，但手动释放策略不会自动卸载
         Assert.That(_resourceManager.IsLoaded("test/resource1.txt"), Is.True);
     }
 
diff --git a/GFramework.Core/configuration/ConfigWatcherUnRegister.cs b/GFramework.Core/configuration/ConfigWatcherUnRegister.cs
index 78b6199..84066bc 100644
--- a/GFramework.Core/configuration/ConfigWatcherUnRegister.cs
+++ b/GFramework.Core/configuration/ConfigWatcherUnRegister.cs
@@ -1,6 +1,6 @@
 using GFramework.Core.Abstractions.events;
 
-namespace GFramework.Core.Abstractions.configuration;
+namespace GFramework.Core.configuration;
 
 /// <summary>
 ///     配置监听取消注册接口
diff --git a/GFramework.Core/configuration/ConfigurationManager.cs b/GFramework.Core/configuration/ConfigurationManager.cs
index bc515de..73e47a0 100644
--- a/GFramework.Core/configuration/ConfigurationManager.cs
+++ b/GFramework.Core/configuration/ConfigurationManager.cs
@@ -92,9 +92,13 @@ public class ConfigurationManager : IConfigurationManager
         if (string.IsNullOrWhiteSpace(key))
             throw new ArgumentException(KeyCannotBeNullOrEmptyMessage, nameof(key));
 
-        var oldValue = _configs.AddOrUpdate(key, value!, (_, _) => value!);
+        // 先获取旧值，以便正确检测变更
+        _configs.TryGetValue(key, out var oldValue);
 
-        // 触发监听器
+        // 更新配置值
+        _configs[key] = value!;
+
+        // 只有在值真正变化时才触发监听器
         if (!EqualityComparer<object>.Default.Equals(oldValue, value))
         {
             NotifyWatchers(key, value);
@@ -293,8 +297,7 @@ public class ConfigurationManager : IConfigurationManager
             catch (Exception ex)
             {
                 // 防止监听器异常影响其他监听器
-                _logger.Error(
-                    $"[ConfigurationManager] Error in config watcher for key '{key}': {ex.Message}");
+                _logger.Error($"Error in config watcher for key '{key}'", ex);
             }
         }
     }
diff --git a/GFramework.Core/resource/ResourceManager.cs b/GFramework.Core/resource/ResourceManager.cs
index 3801a14..8ef383e 100644
--- a/GFramework.Core/resource/ResourceManager.cs
+++ b/GFramework.Core/resource/ResourceManager.cs
@@ -48,7 +48,6 @@ public class ResourceManager : IResourceManager
         var cached = _cache.Get<T>(path);
         if (cached != null)
         {
-            _cache.AddReference(path);
             return cached;
         }
 
@@ -59,7 +58,6 @@ public class ResourceManager : IResourceManager
             cached = _cache.Get<T>(path);
             if (cached != null)
             {
-                _cache.AddReference(path);
                 return cached;
             }
 
@@ -73,12 +71,11 @@ public class ResourceManager : IResourceManager
             {
                 var resource = loader.Load(path);
                 _cache.Add(path, resource);
-                _cache.AddReference(path);
                 return resource;
             }
             catch (Exception ex)
             {
-                _logger.Error($"[ResourceManager] Failed to load resource '{path}': {ex.Message}");
+                _logger.Error($"Failed to load resource '{path}'", ex);
                 return null;
             }
         }
@@ -96,7 +93,6 @@ public class ResourceManager : IResourceManager
         var cached = _cache.Get<T>(path);
         if (cached != null)
         {
-            _cache.AddReference(path);
             return cached;
         }
 
@@ -117,19 +113,17 @@ public class ResourceManager : IResourceManager
                 {
                     // 已经被其他线程加载了，卸载当前加载的资源
                     loader.Unload(resource);
-                    _cache.AddReference(path);
                     return cached;
                 }
 
                 _cache.Add(path, resource);
-                _cache.AddReference(path);
             }
 
             return resource;
         }
         catch (Exception ex)
         {
-            _logger.Error($"[ResourceManager] Failed to load resource '{path}': {ex.Message}");
+            _logger.Error($"Failed to load resource '{path}'", ex);
             return null;
         }
     }
@@ -168,8 +162,7 @@ public class ResourceManager : IResourceManager
             var refCount = _cache.GetReferenceCount(path);
             if (refCount > 0)
             {
-                _logger.Error(
-                    $"[ResourceManager] Cannot unload resource '{path}' with {refCount} active references");
+                _logger.Error($"Cannot unload resource '{path}' with {refCount} active references");
                 return false;
             }
 
@@ -287,7 +280,7 @@ public class ResourceManager : IResourceManager
             }
             catch (Exception ex)
             {
-                _logger.Error($"[ResourceManager] Error unloading resource: {ex.Message}");
+                _logger.Error("Error unloading resource", ex);
             }
         }
 
@@ -300,7 +293,7 @@ public class ResourceManager : IResourceManager
             }
             catch (Exception ex)
             {
-                _logger.Error($"[ResourceManager] Error disposing resource: {ex.Message}");
+                _logger.Error("Error disposing resource", ex);
             }
         }
     }