diff --git a/core/src/main/java/thinkinjava/filter/FilterChain.java b/core/src/main/java/thinkinjava/filter/FilterChain.java
index a6f12f9..94bff90 100644
--- a/core/src/main/java/thinkinjava/filter/FilterChain.java
+++ b/core/src/main/java/thinkinjava/filter/FilterChain.java
@@ -31,7 +31,7 @@ public Invoker buildFilterChain() {
         Invoker last = invoker;
 
         for (int i = filters.size() - 1; i >= 0; i--) {
-            last = new FilterWrapper(filters.get(i), invoker);
+            last = new FilterWrapper(filters.get(i), last);
         }
         // 第一个
         return last;
diff --git a/core/src/main/java/thinkinjava/filter/FilterWrapper.java b/core/src/main/java/thinkinjava/filter/FilterWrapper.java
index 86b2238..133163c 100644
--- a/core/src/main/java/thinkinjava/filter/FilterWrapper.java
+++ b/core/src/main/java/thinkinjava/filter/FilterWrapper.java
@@ -11,24 +11,24 @@
  */
 public class FilterWrapper implements Invoker {
 
-    private Filter next;
+    private Filter filter;
 
-    private Invoker invoker;
+    private Invoker next;
 
     private ServiceConfig config;
 
-    public FilterWrapper(Filter next, Invoker invoker) {
+    public FilterWrapper(Filter filter, Invoker next) {
         this.next = next;
-        this.invoker = invoker;
-        this.config = invoker.getConfig();
+        this.filter = filter;
+        this.config = next.getConfig();
     }
 
 
     public Response invoke(Request args) {
-        if (next != null) {
-            return next.filter(invoker, args);
+        if (filter != null) {
+            return filter.filter(next, args);
         } else {
-            return invoker.invoke(args);
+            return next.invoke(args);
         }
     }