IntelliJ IDEA连接PostgreSQL始终失败的问题求助

各位大佬求助！我现在碰到一个特别头疼的问题：用IntelliJ IDEA运行项目时，完全连不上PostgreSQL数据库——不管是本地库还是远程库都失败。但奇怪的是，用DBeaver能轻松连上这些库，项目部署到服务器上也能正常运行，换另一台机器用IDEA也能正常建立连接。试了各种办法都没解决，有没有人知道该怎么修复这个问题啊？

下面是IDEA里抛出的错误栈：

Caused by: org.postgresql.util.PSQLException: ERROR: Auth failed

at org.postgresql.core.v3.ConnectionFactoryImpl.doAuthentication(ConnectionFactoryImpl.java:659) ~[postgresql-42.5.1.jar:42.5.1]
at org.postgresql.core.v3.ConnectionFactoryImpl.tryConnect(ConnectionFactoryImpl.java:180) ~[postgresql-42.5.1.jar:42.5.1]
at org.postgresql.core.v3.ConnectionFactoryImpl.openConnectionImpl(ConnectionFactoryImpl.java:235) ~[postgresql-42.5.1.jar:42.5.1]
at org.postgresql.core.ConnectionFactory.openConnection(ConnectionFactory.java:49) ~[postgresql-42.5.1.jar:42.5.1]
at org.postgresql.jdbc.PgConnection.<init>(PgConnection.java:247) ~[postgresql-42.5.1.jar:42.5.1]
at org.postgresql.Driver.makeConnection(Driver.java:434) ~[postgresql-42.5.1.jar:42.5.1]
at org.postgresql.Driver.connect(Driver.java:291) ~[postgresql-42.5.1.jar:42.5.1]
at com.zaxxer.hikari.util.DriverDataSource.getConnection(DriverDataSource.java:138) ~[HikariCP-4.0.3.jar:na]
at com.zaxxer.hikari.pool.PoolBase.newConnection(PoolBase.java:364) ~[HikariCP-4.0.3.jar:na]
at com.zaxxer.hikari.pool.PoolBase.newPoolEntry(PoolBase.java:206) ~[HikariCP-4.0.3.jar:na]
at com.zaxxer.hikari.pool.HikariPool.createPoolEntry(HikariPool.java:476) ~[HikariCP-4.0.3.jar:na]
at com.zaxxer.hikari.pool.HikariPool.checkFailFast(HikariPool.java:561) ~[HikariCP-4.0.3.jar:na]
at com.zaxxer.hikari.pool.HikariPool.<init>(HikariPool.java:115) ~[HikariCP-4.0.3.jar:na]
at com.zaxxer.hikari.HikariDataSource.getConnection(HikariDataSource.java:112) ~[HikariCP-4.0.3.jar:na]
at liquibase.integration.spring.SpringLiquibase.afterPropertiesSet(SpringLiquibase.java:266) ~[liquibase-core-4.8.0.jar:na]

我已经试过各种能想到的办法了，但都没起效……

备注：内容来源于stack exchange，提问作者cookerfresh