diff --git a/context.go b/context.go
index 5a8ce2d..6479a69 100644
--- a/context.go
+++ b/context.go
@@ -456,6 +456,12 @@ func (c *Context) GetReqBodyFull() ([]byte, error) {
 		}()
 	} else {
 		limitBytesReader = c.Request.Body
+		defer func() {
+			err := limitBytesReader.Close()
+			if err != nil {
+				c.AddError(fmt.Errorf("failed to close request body: %w", err))
+			}
+		}()
 	}
 
 	data, err := copyb.ReadAll(limitBytesReader)
@@ -484,6 +490,12 @@ func (c *Context) GetReqBodyBuffer() (*bytes.Buffer, error) {
 		}()
 	} else {
 		limitBytesReader = c.Request.Body
+		defer func() {
+			err := limitBytesReader.Close()
+			if err != nil {
+				c.AddError(fmt.Errorf("failed to close request body: %w", err))
+			}
+		}()
 	}
 
 	data, err := copyb.ReadAll(limitBytesReader)
diff --git a/mergectx.go b/mergectx.go
index e6c223d..4c91601 100644
--- a/mergectx.go
+++ b/mergectx.go
@@ -69,15 +69,9 @@ func MergeCtx(parents ...context.Context) (ctx context.Context, cancel context.C
 	return mc, mc.cancel
 }
 
-// Value 实现了 context.Context 的 Value 方法.
-// 它会按顺序遍历所有父 context, 并返回第一个找到的非 nil 值.
+// Value 返回当前Ctx Value
 func (mc *mergedContext) Value(key any) any {
-	for _, p := range mc.parents {
-		if v := p.Value(key); v != nil {
-			return v
-		}
-	}
-	return nil
+	return mc.Context.Value(key)
 }
 
 // Deadline 实现了 context.Context 的 Deadline 方法.