diff --git a/pom.xml b/pom.xml
index 726622e..0fb61ca 100644
--- a/pom.xml
+++ b/pom.xml
@@ -6,7 +6,7 @@
 
     <groupId>cn.cloudowr</groupId>
     <artifactId>sdk</artifactId>
-    <version>1.1.0</version>
+    <version>1.1.1</version>
     <build>
         <plugins>
             <plugin>
diff --git a/src/main/java/cn/cloudowr/sdk/JQueryParameterFilter.java b/src/main/java/cn/cloudowr/sdk/JQueryParameterFilter.java
index b87063b..c61f1c4 100644
--- a/src/main/java/cn/cloudowr/sdk/JQueryParameterFilter.java
+++ b/src/main/java/cn/cloudowr/sdk/JQueryParameterFilter.java
@@ -2,7 +2,11 @@ package cn.cloudowr.sdk;
 
 import com.jfinal.aop.Interceptor;
 import com.jfinal.aop.Invocation;
+import com.jfinal.core.Controller;
 
+import javax.servlet.http.HttpServletRequest;
+import javax.servlet.http.HttpServletRequestWrapper;
+import java.util.HashMap;
 import java.util.Map;
 
 /**
@@ -11,8 +15,28 @@ import java.util.Map;
 public class JQueryParameterFilter implements Interceptor{
     @Override
     public void intercept(Invocation inv) {
-        Map<String, String[]> paraMap = inv.getController().getParaMap();
-        paraMap.remove("_");
+        Controller controller = inv.getController();
+        ParameterRequestWrapper wrapper = new ParameterRequestWrapper(controller.getRequest());
+        if (wrapper.getParameterMap().containsKey("_")) {
+            wrapper.getParameterMap().remove("_");
+        }
+        controller.setHttpServletRequest(wrapper);
+
         inv.invoke();
     }
+
+    static class ParameterRequestWrapper extends HttpServletRequestWrapper {
+
+        private Map<String, String[]> params = new HashMap<>();
+
+        public ParameterRequestWrapper(HttpServletRequest request) {
+            super(request);
+            this.params.putAll(request.getParameterMap());
+        }
+
+        @Override
+        public Map<String, String[]> getParameterMap() {
+            return params;
+        }
+    }
 }