一零三一、com.mysql.cj.exceptions.CJCommunicationsException: Communications link failure

mysql> show global variables like 'wait_timeout';
+---------------+-------+
| Variable_name | Value |
+---------------+-------+
| wait_timeout  | 28800 |
+---------------+-------+
1 row in set, 1 warning (0.06 sec)

mysql> set global WAIT_TIMEOUT=1814400;
Query OK, 0 rows affected (0.01 sec)

mysql> show global variables like 'wait_timeout';
+---------------+---------+
| Variable_name | Value   |
+---------------+---------+
| wait_timeout  | 1814400 |
+---------------+---------+
1 row in set, 1 warning (0.00 sec)

驱动配置修改  &useSSL=false

datasource:
    driver-class-name: com.mysql.jdbc.Driver
    url: jdbc:mysql://192.168.211.132:3306/changgou_content?useUnicode=true&useSSL=false&characterEncoding=UTF-8&serverTimezone=UTC
    username: root
    password: 123456

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