diff --git a/src/main/java/cn/chjyj/szwh/utils/SignUtils.java b/src/main/java/cn/chjyj/szwh/utils/SignUtils.java
index d7ec129..b8f1133 100644
--- a/src/main/java/cn/chjyj/szwh/utils/SignUtils.java
+++ b/src/main/java/cn/chjyj/szwh/utils/SignUtils.java
@@ -130,7 +130,7 @@ public class SignUtils {
         // 填充
         Map<String,String> payload= new HashMap<>();
         payload.put("iss",(String)xmap.get("pem_token"));
-        //payload.put("exp",expireDate.toString()); //过期
+        payload.put("exp",expireDate.toString()); //过期
         payload.put("iat",cal.getTime().toString());//发行日期
 
         // 如果是用户
@@ -139,9 +139,15 @@ public class SignUtils {
         }
         //私钥存放位置
         String private_key_path = (String) xmap.get("private_key");
+        // 公钥存放位置
+        String pub_key_path = (String) xmap.get("public_key");
+
         try {
             // 私钥
             RSAPrivateKey rsaPrivateKey = getPrivateKey(ChConstant.WORK_DIR + "/" + private_key_path);
+            // 公钥
+            RSAPublicKey rsaPublicKey = getPublicKey(ChConstant.WORK_DIR + "/" +pub_key_path);
+
             JWTCreator.Builder builder = JWT.create();
             // 头部信息
             Map<String,Object> a = new HashMap<>(payload);