diff --git a/src/org/redkale/net/http/Rest.java b/src/org/redkale/net/http/Rest.java
index 1b341730e..d24deee50 100644
--- a/src/org/redkale/net/http/Rest.java
+++ b/src/org/redkale/net/http/Rest.java
@@ -175,7 +175,7 @@ public final class Rest {
 
         final List<MappingEntry> entrys = new ArrayList<>();
         final Map<String, org.redkale.util.Attribute> restAttributes = new LinkedHashMap<>();
-
+        //获取所有可以转换成WebMapping的方法
         for (final Method method : serviceType.getMethods()) {
             if (Modifier.isStatic(method.getModifiers())) continue;
             Class[] extypes = method.getExceptionTypes();
@@ -208,6 +208,8 @@ public final class Rest {
             }
         }
         if (entrys.isEmpty()) return null; //没有可WebMapping的方法
+
+        //将每个Service可转换的方法生成HttpServlet对应的WebMapping方法
         for (final MappingEntry entry : entrys) {
             final Method method = entry.mappingMethod;
             final Class returnType = method.getReturnType();
@@ -257,6 +259,7 @@ public final class Rest {
             int argIndex = 0;
 
             List<Object[]> paramlist = new ArrayList<>();
+            //解析方法中的每个参数
             for (final Parameter param : params) {
                 final Class ptype = param.getType();
                 String n = null;
@@ -317,7 +320,7 @@ public final class Rest {
             }
 
             Map<String, Object> mappingMap = new LinkedHashMap<>();
-            {
+            { // 设置 Annotation
                 //设置 WebMapping
                 boolean reqpath = false;
                 for (Object[] ps : paramlist) {
@@ -351,7 +354,7 @@ public final class Rest {
                 mappingMap.put("result", grt == returnType ? returnType.getName() : String.valueOf(grt));
             }
 
-            {
+            { // 设置 Annotation
                 av0 = mv.visitAnnotation(webparamsDesc, true);
                 AnnotationVisitor av1 = av0.visitArray("value");
                 //设置 WebParam
@@ -373,10 +376,12 @@ public final class Rest {
                 av0.visitEnd();
             }
             List<Map<String, Object>> paramMaps = new ArrayList<>();
+            //获取每个参数的值
+            boolean hasAsyncHandler = false;
             for (Object[] ps : paramlist) {
                 Map<String, Object> paramMap = new LinkedHashMap<>();
                 String pname = (String) ps[1]; //参数名
-                Class ptype = (Class) ps[2];
+                Class ptype = (Class) ps[2]; //参数类型
                 int radix = (Integer) ps[3];
                 String comment = (String) ps[4];
                 boolean required = (Boolean) ps[5];
@@ -391,7 +396,13 @@ public final class Rest {
 
                 paramMap.put("name", pname);
                 paramMap.put("type", ptype.getName());
-                if (annsid != null) { //HttpRequest.getSessionid(true|false)
+                if (ptype == AsyncHandler.class) { //HttpResponse.createAsyncHandler()
+                    mv.visitVarInsn(ALOAD, 2);
+                    mv.visitMethodInsn(INVOKEVIRTUAL, respInternalName, "createAsyncHandler", "()Lorg/redkale/util/AsyncHandler;", false);
+                    mv.visitVarInsn(ASTORE, maxLocals);
+                    varInsns.add(new int[]{ALOAD, maxLocals});
+                    hasAsyncHandler = true;
+                } else if (annsid != null) { //HttpRequest.getSessionid(true|false)
                     mv.visitVarInsn(ALOAD, 1);
                     mv.visitInsn(annsid.create() ? ICONST_1 : ICONST_0);
                     mv.visitMethodInsn(INVOKEVIRTUAL, reqInternalName, "getSessionid", "(Z)Ljava/lang/String;", false);
@@ -723,7 +734,9 @@ public final class Rest {
                 mv.visitVarInsn(ins[0], ins[1]);
             }
             mv.visitMethodInsn(INVOKEVIRTUAL, serviceTypeInternalName, method.getName(), methodDesc, false);
-            if (returnType == void.class) {
+            if (hasAsyncHandler) {
+                mv.visitInsn(RETURN);
+            } else if (returnType == void.class) {
                 mv.visitVarInsn(ALOAD, 2);
                 mv.visitMethodInsn(INVOKESTATIC, retInternalName, "success", "()" + retDesc, false);
                 mv.visitMethodInsn(INVOKEVIRTUAL, respInternalName, "finishJson", "(" + retDesc + ")V", false);
diff --git a/test/org/redkale/test/rest/HelloService.java b/test/org/redkale/test/rest/HelloService.java
index daf523fe2..6d810b78e 100644
--- a/test/org/redkale/test/rest/HelloService.java
+++ b/test/org/redkale/test/rest/HelloService.java
@@ -7,7 +7,7 @@ import org.redkale.net.http.*;
 import org.redkale.service.*;
 import org.redkale.source.DataSource;
 import org.redkale.source.Flipper;
-import org.redkale.util.Sheet;
+import org.redkale.util.*;
 
 /**
  * 类说明:
@@ -76,4 +76,13 @@ public class HelloService implements Service {
         return source.find(HelloEntity.class, id);
     }
 
+    //查询单个
+    @RestMapping(name = "findone")
+    public HelloEntity findOneHello(AsyncHandler handler, @RestParam(name = "#") int id) {  //通过 /pipes/hello/find/1234、/pipes/hello/jsfind/1234 查询对象
+        if (source != null) source.find(handler, HelloEntity.class, id);
+        HelloEntity rs = new HelloEntity();
+        rs.setHelloname("Hello名称");
+        if (handler != null) handler.completed(rs, null);
+        return null;
+    }
 }
diff --git a/test/org/redkale/test/rest/_DynHelloRestServlet1.java b/test/org/redkale/test/rest/_DynHelloRestServlet1.java
index 5f25a99de..6aeb5d0fc 100644
--- a/test/org/redkale/test/rest/_DynHelloRestServlet1.java
+++ b/test/org/redkale/test/rest/_DynHelloRestServlet1.java
@@ -38,6 +38,9 @@ public class _DynHelloRestServlet1 extends SimpleRestServlet {
         //headers.put(Rest.REST_HEADER_RESOURCE_NAME, "my-res");
         String url = "http://127.0.0.1:" + port + "/pipes/hello/update?entity={}&bean2={}";
         System.out.println(Utility.postHttpContent(url, headers, null));
+        
+        url = "http://127.0.0.1:" + port + "/pipes/hello/findone/1234";
+        System.out.println(Utility.postHttpContent(url, headers, null));
 
     }