diff --git a/src/org/redkale/net/http/HttpResponse.java b/src/org/redkale/net/http/HttpResponse.java
index 06eedf755..526486775 100644
--- a/src/org/redkale/net/http/HttpResponse.java
+++ b/src/org/redkale/net/http/HttpResponse.java
@@ -390,7 +390,9 @@ public class HttpResponse extends Response<HttpContext, HttpRequest> {
             this.header.addValue("retcode", String.valueOf(ret.getRetcode()));
             this.header.addValue("retinfo", ret.getRetinfo());
         }
-        finish(request.getJsonConvert().convertTo(getBodyBufferSupplier(), ret));
+        Convert convert = ret == null ? null : ret.convert();
+        if (convert == null) convert = request.getJsonConvert();
+        finish(convert.convertTo(getBodyBufferSupplier(), ret));
     }
 
     /**
@@ -497,6 +499,8 @@ public class HttpResponse extends Response<HttpContext, HttpRequest> {
                 context.getLogger().log(Level.WARNING, "HttpServlet finish File occur, force to close channel. request = " + getRequest(), e);
                 finish(500, null);
             }
+        } else if (obj instanceof org.redkale.service.RetResult) {
+            finishJson((org.redkale.service.RetResult) obj);
         } else if (obj instanceof HttpResult) {
             HttpResult result = (HttpResult) obj;
             if (result.getContentType() != null) setContentType(result.getContentType());
@@ -506,7 +510,7 @@ public class HttpResponse extends Response<HttpContext, HttpRequest> {
             } else if (result.getResult() instanceof CharSequence) {
                 finish(result.getResult().toString());
             } else {
-                finish(result.getConvert() == null ? convert : result.getConvert(), result.getResult());
+                finish(result.convert() == null ? convert : result.convert(), result.getResult());
             }
         } else {
             if (hasRender) {
diff --git a/src/org/redkale/net/http/HttpResult.java b/src/org/redkale/net/http/HttpResult.java
index 7bb9f8a90..ce00e5e6c 100644
--- a/src/org/redkale/net/http/HttpResult.java
+++ b/src/org/redkale/net/http/HttpResult.java
@@ -90,12 +90,11 @@ public class HttpResult<T> {
         return this;
     }
 
-    @ConvertDisabled
-    public Convert getConvert() {
+    public Convert convert() {
         return convert;
     }
 
-    public void setConvert(Convert convert) {
+    public void convert(Convert convert) {
         this.convert = convert;
     }
 
diff --git a/src/org/redkale/service/RetResult.java b/src/org/redkale/service/RetResult.java
index 8460cd2d6..6cb63f39e 100644
--- a/src/org/redkale/service/RetResult.java
+++ b/src/org/redkale/service/RetResult.java
@@ -7,6 +7,7 @@ package org.redkale.service;
 
 import java.util.*;
 import java.util.concurrent.CompletableFuture;
+import org.redkale.convert.Convert;
 import org.redkale.convert.json.*;
 import org.redkale.util.Utility;
 
@@ -33,6 +34,8 @@ public class RetResult<T> {
 
     protected Map<String, String> attach;
 
+    protected Convert convert;
+
     public RetResult() {
     }
 
@@ -40,6 +43,11 @@ public class RetResult<T> {
         this.result = result;
     }
 
+    public RetResult(Convert convert, T result) {
+        this.convert = convert;
+        this.result = result;
+    }
+
     public RetResult(int retcode) {
         this.retcode = retcode;
     }
@@ -55,6 +63,14 @@ public class RetResult<T> {
         this.result = result;
     }
 
+    public Convert convert() {
+        return convert;
+    }
+
+    public void convert(Convert convert) {
+        this.convert = convert;
+    }
+
     public static RetResult success() {
         return new RetResult();
     }