diff --git a/examples/static_link_example/main.cc b/examples/static_link_example/main.cc
index b31a2896..45e44c70 100755
--- a/examples/static_link_example/main.cc
+++ b/examples/static_link_example/main.cc
@@ -1,7 +1,16 @@
 #include <drogon/HttpAppFramework.h>
+#include <iostream>
+static const char banner[]="     _                             \n"
+                           "  __| |_ __ ___   __ _  ___  _ __  \n"
+                           " / _` | '__/ _ \\ / _` |/ _ \\| '_ \\ \n"
+                           "| (_| | | | (_) | (_| | (_) | | | |\n"
+                           " \\__,_|_|  \\___/ \\__, |\\___/|_| |_|\n"
+                           "                 |___/             \n";
+
 int main()
 {
+    std::cout<<banner<<std::endl;
     drogon::HttpAppFramework framework("0.0.0.0",12345);
     trantor::Logger::setLogLevel(trantor::Logger::TRACE);
     framework.run();
-}
\ No newline at end of file
+}
diff --git a/lib/inc/drogon/CacheMap.h b/lib/inc/drogon/CacheMap.h
index b9626a5f..c116bd28 100755
--- a/lib/inc/drogon/CacheMap.h
+++ b/lib/inc/drogon/CacheMap.h
@@ -50,7 +50,7 @@ public:
             CallbackBucket tmp;
             {
                 std::lock_guard<std::mutex> lock(bucketMutex_);
-                //use tmp to make this critical area as short as possible.
+                //use tmp val to make this critical area as short as possible.
                 event_bucket_queue_.front().swap(tmp);
                 event_bucket_queue_.pop_front();
                 event_bucket_queue_.push_back(CallbackBucket());
@@ -89,7 +89,7 @@ public:
         {
             timeout=map_[key].timeout;
         }
-        if(timeout)
+        if(timeout>0)
             eraseAfter(timeout,key);
 
 
@@ -105,7 +105,7 @@ public:
             timeout=map_[key].timeout;
             flag=true;
         }
-        if(timeout)
+        if(timeout>0)
             eraseAfter(timeout,key);
 
 
diff --git a/lib/inc/drogon/HttpResponse.h b/lib/inc/drogon/HttpResponse.h
index d3e85ed6..fa807fdd 100755
--- a/lib/inc/drogon/HttpResponse.h
+++ b/lib/inc/drogon/HttpResponse.h
@@ -188,6 +188,10 @@ public:
     {
         body_ = body;
     }
+    void setBody(std::string&& body)
+    {
+        body_ = std::move(body);
+    }
     void redirect(const std::string& url)
     {
         headers_["Location"] = url;