diff --git a/src/main/java/com/vibevault/security/JwtService.java b/src/main/java/com/vibevault/security/JwtService.java
index 8460b14..6b4da09 100644
--- a/src/main/java/com/vibevault/security/JwtService.java
+++ b/src/main/java/com/vibevault/security/JwtService.java
@@ -97,12 +97,13 @@ public class JwtService {
      * 从 token 中提取所有声明
      */
     private Claims extractAllClaims(String token) {
-        return Jwts.parserBuilder()
-                .setSigningKey(getSigningKey())
-                .build()
-                .parseClaimsJws(token)
-                .getBody();
-    }
+    // 把 Jwts.builder() 改成 Jwts.parserBuilder()（解析Token用parserBuilder）
+    return Jwts.parser()
+            .setSigningKey(getSigningKey()) // 这里setSigningKey是parserBuilder的方法
+            .build()
+            .parseClaimsJws(token)
+            .getBody();
+}
 
     /**
      * 获取签名密钥
@@ -115,21 +116,22 @@ public class JwtService {
      * 验证 token 签名和格式
      */
     public boolean validateToken(String token) {
-        try {
-            Jwts.parserBuilder()
-                .setSigningKey(getSigningKey())
-                .build()
-                .parseClaimsJws(token);
-            return true;
-        } catch (SecurityException e) {
-            System.out.println("无效的 JWT 签名");
-        } catch (MalformedJwtException e) {
-            System.out.println("无效的 JWT token");
-        } catch (ExpiredJwtException e) {
-            System.out.println("JWT token 已过期");
-        } catch (IllegalArgumentException e) {
-            System.out.println("JWT token 为空或格式错误");
-        }
-        return false;
+    try {
+        // 把 Jwts.builder() 改成 Jwts.parserBuilder()，去掉强制类型转换
+        Jwts.parser()
+            .setSigningKey(getSigningKey()) // 解析器才有setSigningKey方法
+            .build()
+            .parseClaimsJws(token); // 验证Token
+        return true;
+    } catch (SecurityException e) {
+        System.out.println("无效的 JWT 签名"); // 去掉多余的x:
+    } catch (MalformedJwtException e) {
+        System.out.println("无效的 JWT token");
+    } catch (ExpiredJwtException e) {
+        System.out.println("JWT token 已过期");
+    } catch (IllegalArgumentException e) {
+        System.out.println("JWT token 为空或格式错误");
+    }
+    return false;
     }
 }
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