diff --git a/src/org/redkale/net/PrepareServlet.java b/src/org/redkale/net/PrepareServlet.java
index 4f6b5b273..b61a35eb4 100644
--- a/src/org/redkale/net/PrepareServlet.java
+++ b/src/org/redkale/net/PrepareServlet.java
@@ -19,9 +19,11 @@ import org.redkale.util.*;
  * 详情见: http://redkale.org
  *
  * @author zhangjx
+ * @param <K> SessionID的类型
  * @param <C> Context的子类型
  * @param <R> Request的子类型
  * @param <P> Response的子类型
+ * @param <S> Servlet的子类型
  */
 public abstract class PrepareServlet<K extends Serializable, C extends Context, R extends Request<C>, P extends Response<C, R>, S extends Servlet<C, R, P>> extends Servlet<C, R, P> {
 
diff --git a/src/org/redkale/net/http/HttpPrepareServlet.java b/src/org/redkale/net/http/HttpPrepareServlet.java
index 9c931416c..1ef79203d 100644
--- a/src/org/redkale/net/http/HttpPrepareServlet.java
+++ b/src/org/redkale/net/http/HttpPrepareServlet.java
@@ -89,6 +89,10 @@ public final class HttpPrepareServlet extends PrepareServlet<String, HttpContext
     @Override
     public void addServlet(HttpServlet servlet, Object prefix, AnyValue conf, String... mappings) {
         if (prefix == null) prefix = "";
+        if (mappings.length < 1) {
+            WebServlet ws = servlet.getClass().getAnnotation(WebServlet.class);
+            if (ws != null) mappings = ws.value();
+        }
         for (String mapping : mappings) {
             if (!prefix.toString().isEmpty()) mapping = prefix + mapping;
             if (this.mapStrings.containsKey(mapping)) {