无法在PDB中添加新用户的SQLDeveloper中创建连接

Question

首先，我对Oracle DBs和他们如何做事情还不熟悉，所以如果我没有看到一些明显的东西，请原谅。我花了大约5个小时排除以下问题，似乎无法自行解决。会非常感激我能得到的任何帮助。

我在个人电脑上运行SQL Developer for Oracle XE 18c数据库，试图学习APEX，但在添加新用户后，我无法使用新用户创建与数据库的连接。相关信息：

1. 能够使用新连接提示连接到数据库

我找到的所有教程、解释和答案，让登录系统变得如此简单

我将感激我能得到的每一个帮助。如果您需要任何其他配置数据，请告诉我。

lsnrctl服务输出：

LSNRCTL for 64-bit Windows: Version 18.0.0.0.0 - Production on 09-MAY-2021 02:52:21

Copyright (c) 1991, 2018, Oracle.  All rights reserved.

Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=DESKTOP-LU84249)(PORT=1521)))
Services Summary...
Service "33a4c118d1384fc5842519d99267b5b7" has 1 instance(s).
  Instance "xe", status READY, has 1 handler(s) for this service...
    Handler(s):
      "DEDICATED" established:13 refused:0 state:ready
         LOCAL SERVER
Service "CLRExtProc" has 1 instance(s).
  Instance "CLRExtProc", status UNKNOWN, has 1 handler(s) for this service...
    Handler(s):
      "DEDICATED" established:0 refused:0
         LOCAL SERVER
Service "XE" has 1 instance(s).
  Instance "xe", status READY, has 1 handler(s) for this service...
    Handler(s):
      "DEDICATED" established:13 refused:0 state:ready
         LOCAL SERVER
Service "XEXDB" has 1 instance(s).
  Instance "xe", status READY, has 1 handler(s) for this service...
    Handler(s):
      "D000" established:0 refused:0 current:0 max:1022 state:ready
         DISPATCHER <machine: DESKTOP-LU84249, pid: 7788>
         (ADDRESS=(PROTOCOL=tcp)(HOST=DESKTOP-LU84249)(PORT=59728))
Service "xepdb1" has 1 instance(s).
  Instance "xe", status READY, has 1 handler(s) for this service...
    Handler(s):
      "DEDICATED" established:13 refused:0 state:ready
         LOCAL SERVER
The command completed successfully```

Answer 1

通过重新启动电脑解决。数据库是几个小时前安装的，从那以后我就没有重新启动电脑，即使其他一切都配置好了。使用服务名称XEPDB1成功连接（XE DBs应该是默认的）。