diff --git a/taoyao-signal-server/taoyao-signal/src/main/java/com/acgist/taoyao/signal/service/SecurityService.java b/taoyao-signal-server/taoyao-signal/src/main/java/com/acgist/taoyao/signal/service/SecurityService.java
index 0aaf19c..88a0866 100644
--- a/taoyao-signal-server/taoyao-signal/src/main/java/com/acgist/taoyao/signal/service/SecurityService.java
+++ b/taoyao-signal-server/taoyao-signal/src/main/java/com/acgist/taoyao/signal/service/SecurityService.java
@@ -13,7 +13,6 @@ public interface SecurityService {
 
     /**
      * 认证
-     * 优先使用`UsernamePasswordService`其次使用配置帐号密码
      * 
      * @param username 用户名称
      * @param password 用户密码
diff --git a/taoyao-signal-server/taoyao-signal/src/main/java/com/acgist/taoyao/signal/service/impl/SecurityServiceImpl.java b/taoyao-signal-server/taoyao-signal/src/main/java/com/acgist/taoyao/signal/service/impl/SecurityServiceImpl.java
index 7b63b37..4a9682f 100644
--- a/taoyao-signal-server/taoyao-signal/src/main/java/com/acgist/taoyao/signal/service/impl/SecurityServiceImpl.java
+++ b/taoyao-signal-server/taoyao-signal/src/main/java/com/acgist/taoyao/signal/service/impl/SecurityServiceImpl.java
@@ -9,16 +9,14 @@ import com.acgist.taoyao.signal.protocol.Protocol;
 import com.acgist.taoyao.signal.service.SecurityService;
 import com.acgist.taoyao.signal.service.UsernamePasswordService;
 
+import lombok.RequiredArgsConstructor;
+
+@RequiredArgsConstructor
 public class SecurityServiceImpl implements SecurityService {
 
     private final SecurityProperties      securityProperties;
     private final UsernamePasswordService usernamePasswordService;
     
-    public SecurityServiceImpl(SecurityProperties securityProperties, UsernamePasswordService usernamePasswordService) {
-        this.securityProperties      = securityProperties;
-        this.usernamePasswordService = usernamePasswordService;
-    }
-
     @Override
     public boolean authenticate(String username, String password) {
         if(Boolean.FALSE.equals(this.securityProperties.getEnabled())) {