org.postgresql.util.PSQLException：致命：从 Spring Boot 连接到 postgress 时，用户“postgres”的密码验证失败

Question

这是我创建容器和数据库 application.yml 的命令提示符

app:
  datasource:
    jdbc-url: jdbc:postgresql://localhost:5432/postgresDB
    username: postgres
    password: password
    pool-size: 30

我是 docker 的新手。我在 docker 中创建了一个容器，并在该容器中创建了 Postgres DB，但在连接到数据库时出现以下错误：

堆栈跟踪：

org.postgresql.util.PSQLException: FATAL: password authentication failed for user "postgres"
    at org.postgresql.core.v3.ConnectionFactoryImpl.doAuthentication(ConnectionFactoryImpl.java:525) ~[postgresql-42.2.12.jar:42.2.12]
    at org.postgresql.core.v3.ConnectionFactoryImpl.tryConnect(ConnectionFactoryImpl.java:146) ~[postgresql-42.2.12.jar:42.2.12]
    at org.postgresql.core.v3.ConnectionFactoryImpl.openConnectionImpl(ConnectionFactoryImpl.java:197) ~[postgresql-42.2.12.jar:42.2.12]
    at org.postgresql.core.ConnectionFactory.openConnection(ConnectionFactory.java:49) ~[postgresql-42.2.12.jar:42.2.12]
    at org.postgresql.jdbc.PgConnection.<init>(PgConnection.java:211) ~[postgresql-42.2.12.jar:42.2.12]
    at org.postgresql.Driver.makeConnection(Driver.java:459) ~[postgresql-42.2.12.jar:42.2.12]
    at org.postgresql.Driver.connect(Driver.java:261) ~[postgresql-42.2.12.jar:42.2.12]
    at com.zaxxer.hikari.util.DriverDataSource.getConnection(DriverDataSource.java:138) ~[HikariCP-3.4.5.jar:na]
    at com.zaxxer.hikari.pool.PoolBase.newConnection(PoolBase.java:358) ~[HikariCP-3.4.5.jar:na]
    at com.zaxxer.hikari.pool.PoolBase.newPoolEntry(PoolBase.java:206) ~[HikariCP-3.4.5.jar:na]
    at com.zaxxer.hikari.pool.HikariPool.createPoolEntry(HikariPool.java:477) [HikariCP-3.4.5.jar:na]
    at com.zaxxer.hikari.pool.HikariPool.checkFailFast(HikariPool.java:560) [HikariCP-3.4.5.jar:na]
    at com.zaxxer.hikari.pool.HikariPool.<init>(HikariPool.java:115) [HikariCP-3.4.5.jar:na]
    at com.zaxxer.hikari.HikariDataSource.getConnection(HikariDataSource.java:112) [HikariCP-3.4.5.jar:na]
    at org.flywaydb.core.internal.jdbc.JdbcUtils.openConnection(JdbcUtils.java:56) [flyway-core-6.4.1.jar:na]
    at org.flywaydb.core.internal.jdbc.JdbcConnectionFactory.<init>(JdbcConnectionFactory.java:80) [flyway-core-6.4.1.jar:na]
    at org.flywaydb.core.Flyway.execute(Flyway.java:456) [flyway-core-6.4.1.jar:na]
    at org.flywaydb.core.Flyway.migrate(Flyway.java:159) [flyway-core-6.4.1.jar:na]
    at org.springframework.boot.autoconfigure.flyway.FlywayMigrationInitializer.afterPropertiesSet(FlywayMigrationInitializer.java:65) [spring-boot-autoconfigure-2.3.0.RELEASE.jar:2.3.0.RELEASE]
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1855) [spring-beans-5.2.6.RELEASE.jar:5.2.6.RELEASE]
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1792) [spring-beans-5.2.6.RELEASE.jar:5.2.6.RELEASE]
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:595) [spring-beans-5.2.6.RELEASE.jar:5.2.6.RELEASE]
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:517) [spring-beans-5.2.6.RELEASE.jar:5.2.6.RELEASE]
    at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:323) [spring-beans-5.2.6.RELEASE.jar:5.2.6.RELEASE]
    at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:226) ~[spring-beans-5.2.6.RELEASE.jar:5.2.6.RELEASE]
    at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:321) [spring-beans-5.2.6.RELEASE.jar:5.2.6.RELEASE]
    at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:202) [spring-beans-5.2.6.RELEASE.jar:5.2.6.RELEASE]
    at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:310) [spring-beans-5.2.6.RELEASE.jar:5.2.6.RELEASE]
    at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:202) [spring-beans-5.2.6.RELEASE.jar:5.2.6.RELEASE]
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:895) ~[spring-beans-5.2.6.RELEASE.jar:5.2.6.RELEASE]
    at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:878) ~[spring-context-5.2.6.RELEASE.jar:5.2.6.RELEASE]
    at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:550) ~[spring-context-5.2.6.RELEASE.jar:5.2.6.RELEASE]
    at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:143) ~[spring-boot-2.3.0.RELEASE.jar:2.3.0.RELEASE]
    at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:758) ~[spring-boot-2.3.0.RELEASE.jar:2.3.0.RELEASE]
    at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:750) ~[spring-boot-2.3.0.RELEASE.jar:2.3.0.RELEASE]
    at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:397) ~[spring-boot-2.3.0.RELEASE.jar:2.3.0.RELEASE]
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:315) ~[spring-boot-2.3.0.RELEASE.jar:2.3.0.RELEASE]
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:1237) ~[spring-boot-2.3.0.RELEASE.jar:2.3.0.RELEASE]
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:1226) ~[spring-boot-2.3.0.RELEASE.jar:2.3.0.RELEASE]
    at com.freecodecamp.freecodecamp.FreecodecampApplication.main(FreecodecampApplication.java:10) ~[classes/:na]

2020-05-31 15:40:31.124  WARN 18004 --- [           main] ConfigServletWebServerApplicationContext : Exception encountered during context initialization - cancelling refresh attempt: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'flywayInitializer' defined in class path resource [org/springframework/boot/autoconfigure/flyway/FlywayAutoConfiguration$FlywayConfiguration.class]: Invocation of init method failed; nested exception is org.flywaydb.core.internal.exception.FlywaySqlException: 
Unable to obtain connection from database: FATAL: password authentication failed for user "postgres"

Answer 1

正如您在跟踪跟踪中看到的那样，

org.postgresql.util.PSQLException: FATAL: password authentication failed for user "postgres"

您的应用程序无法登录到您的数据库，因为您的凭据不正确。 您确定用户名：postgres 和密码：密码吗？

您可以尝试使用 DBMS 使用这些凭据连接到您的数据库吗？

Answer 2

当您的 Postgres 已经作为服务在您的机器上使用与 docker 相同的端口运行时，您可能会遇到这样的问题。

尝试停止本地运行的 postgres 服务。 在 Windows 上，打开任务管理器切换到“服务”选项卡并搜索postgresql-x64-15或postgresql-x64-xx ，其中xx是您的 postgres 版本。 打开它的上下文菜单（右键单击）和 select stop 。 在其他平台上，您也可以在谷歌上搜索如何定位和停止服务。

如果您仍然希望同时维护两者，请编辑您的 docker 组合以使用不同的端口 map 然后重新创建容器即

从

ports:
  - "5432:5432"

到

ports:
  - "5433:5432"