fix:

保证token随机性，防止爆破

mallchat-common/src/main/java/com/abin/mallchat/common/common/utils/JwtUtils.java

@@ -30,6 +30,7 @@ public class JwtUtils {
     private String secret;
 
     private static final String UID_CLAIM = "uid";
+    private static final String CREATE_TIME = "createTime";
 
     /**
      * JWT生成Token.<br/>
@@ -40,6 +41,7 @@ public class JwtUtils {
         // build token
         String token = JWT.create()
                 .withClaim(UID_CLAIM, uid) // 只存一个uid信息，其他的自己去redis查
+                .withClaim(CREATE_TIME, new Date())
                 .sign(Algorithm.HMAC256(secret)); // signature
         return token;
     }