diff --git a/src/org/redkale/net/http/HttpRequest.java b/src/org/redkale/net/http/HttpRequest.java
index 6ac86740e..df78ca89c 100644
--- a/src/org/redkale/net/http/HttpRequest.java
+++ b/src/org/redkale/net/http/HttpRequest.java
@@ -352,7 +352,7 @@ public class HttpRequest extends Request<HttpContext> {
     public String getSessionid(boolean create) {
         String sessionid = getCookie(SESSIONID_NAME, null);
         if (create && (sessionid == null || sessionid.isEmpty())) {
-            sessionid = ((HttpContext) context).createSessionid();
+            sessionid = context.createSessionid();
             this.newsessionid = sessionid;
         }
         return sessionid;
@@ -368,6 +368,18 @@ public class HttpRequest extends Request<HttpContext> {
         return newsessionid;
     }
 
+    /**
+     * 指定值更新sessionid
+     *
+     * @param newsessionid 新sessionid值
+     *
+     * @return 新的sessionid值
+     */
+    public String changeSessionid(String newsessionid) {
+        this.newsessionid = newsessionid == null ? context.createSessionid() : newsessionid.trim();
+        return newsessionid;
+    }
+
     /**
      * 使sessionid失效
      */