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问题：

Docker容器中数据库容器和Docker中java容器之间的连接被拒绝

后烨煜
2023-03-14

我使用docker撰写启动一个mysql da和一个springstart应用程序。

这是我的docker-compose.yml

version: '3'
services:
  sql:
    image: mysql
    environment:
      MYSQL_DATABASE: people
      MYSQL_USER: root
      MYSQL_PASSWORD: my-secret-pw
      MYSQL_ROOT_PASSWORD: my-secret-pw
    ports:
      - "3307:3306"
  appointment-service:
    depends_on:
      - sql # This service depends on mysql. Start that first.
    environment: # Pass environment variables to the service
      - DATABASE_HOST=sql
      - DATABASE_USER=root
      - DATABASE_PASSWORD=my-secret-pw
      - DATABASE_NAME=people
      - DATABASE_PORT=3306
    links:
      - "sql:localhost"
    build: .
    ports:
      - "8081:8081"

这是我的application.properties

server.port=8081

spring.datasource.url=jdbc:mysql://localhost:3306/people?useSSL=false&allowPublicKeyRetrieval=true
spring.datasource.username=root
spring.datasource.password=my-secret-pw

url.organizations = https://hr.apografi.gov.gr/api/public/organizations
url.db = jdbc:mysql://localhost:3306/people?serverTimezone=UTC
url.username = root
url.password = my-secret-pw

在这里，我创建了jdbi：

private Jdbi jdbi = Jdbi.create("jdbc:mysql://localhost:3306/people?useSSL=false&allowPublicKeyRetrieval=true", "root", "my-secret-pw");

不管我怎么做，我都无法让集装箱在码头内相互交谈。如果我单独启动sql，我可以在主机中看到连接（在datagrip中）。如果我从容器中运行java程序，它会看到主机中的数据库。即使我运行docker compose文件，也会创建两个容器，并且我可以从主机访问它们。我知道在DockerVM中存在名为sql的数据库/I已尝试使用sql名称和localhost名称（从links属性）。但无论我尝试了什么，我都无法从Docker中的java程序访问它。

这是stackTrace

docker-compose up --build
Building appointment-service
Step 1/4 : FROM openjdk:8-jdk-alpine
 ---> a3562aa0b991
Step 2/4 : ARG JAR_FILE=target/*.jar
 ---> Using cache
 ---> 603b2c59103f
Step 3/4 : COPY ${JAR_FILE} app.jar
 ---> Using cache
 ---> 4783d891166c
Step 4/4 : ENTRYPOINT ["java","-jar","/app.jar"]
 ---> Using cache
 ---> 24deebb3147a
Successfully built 24deebb3147a
Successfully tagged appointments-service_appointment-service:latest
Starting appointments-service_sql_1 ... done
Starting appointments-service_appointment-service_1 ... done
Attaching to appointments-service_sql_1, appointments-service_appointment-service_1
sql_1                  | 2020-09-11 16:47:27+00:00 [Note] [Entrypoint]: Entrypoint script for MySQL Server 8.0.21-1debian10 started.
sql_1                  | 2020-09-11 16:47:27+00:00 [Note] [Entrypoint]: Switching to dedicated user 'mysql'
sql_1                  | 2020-09-11 16:47:27+00:00 [Note] [Entrypoint]: Entrypoint script for MySQL Server 8.0.21-1debian10 started.
sql_1                  | 2020-09-11T16:47:28.258555Z 0 [System] [MY-010116] [Server] /usr/sbin/mysqld (mysqld 8.0.21) starting as process 1
sql_1                  | 2020-09-11T16:47:28.275621Z 1 [System] [MY-013576] [InnoDB] InnoDB initialization has started.
sql_1                  | 2020-09-11T16:47:28.641173Z 1 [System] [MY-013577] [InnoDB] InnoDB initialization has ended.
sql_1                  | 2020-09-11T16:47:28.823110Z 0 [System] [MY-011323] [Server] X Plugin ready for connections. Bind-address: '::' port: 33060, socket: /var/run/mysqld/mysqlx.sock
sql_1                  | 2020-09-11T16:47:28.988711Z 0 [Warning] [MY-010068] [Server] CA certificate ca.pem is self signed.
sql_1                  | 2020-09-11T16:47:28.989000Z 0 [System] [MY-013602] [Server] Channel mysql_main configured to support TLS. Encrypted connections are now supported for this channel.
sql_1                  | 2020-09-11T16:47:28.999907Z 0 [Warning] [MY-011810] [Server] Insecure configuration for --pid-file: Location '/var/run/mysqld' in the path is accessible to all OS users. Consider choosing a different directory.
sql_1                  | 2020-09-11T16:47:29.056993Z 0 [System] [MY-010931] [Server] /usr/sbin/mysqld: ready for connections. Version: '8.0.21'  socket: '/var/run/mysqld/mysqld.sock'  port: 3306  MySQL Community Server - GPL.
appointment-service_1  |
appointment-service_1  |   .   ____          _            __ _ _
appointment-service_1  |  /\\ / ___'_ __ _ _(_)_ __  __ _ \ \ \ \
appointment-service_1  | ( ( )\___ | '_ | '_| | '_ \/ _` | \ \ \ \
appointment-service_1  |  \\/  ___)| |_)| | | | | || (_| |  ) ) ) )
appointment-service_1  |   '  |____| .__|_| |_|_| |_\__, | / / / /
appointment-service_1  |  =========|_|==============|___/=/_/_/_/
appointment-service_1  |  :: Spring Boot ::        (v2.3.2.RELEASE)
appointment-service_1  |
appointment-service_1  | 2020-09-11 16:47:30.628  INFO 1 --- [           main] c.a.service.ServiceApplication           : Starting ServiceApplication v0.0.1-SNAPSHOT on 5bbe74d3ddb0 with PID 1 (/app.jar started by root in /)
appointment-service_1  | 2020-09-11 16:47:30.635  INFO 1 --- [           main] c.a.service.ServiceApplication           : No active profile set, falling back to default profiles: default
appointment-service_1  | 2020-09-11 16:47:32.822  INFO 1 --- [           main] .s.d.r.c.RepositoryConfigurationDelegate : Bootstrapping Spring Data JPA repositories in DEFERRED mode.
appointment-service_1  | 2020-09-11 16:47:32.876  INFO 1 --- [           main] .s.d.r.c.RepositoryConfigurationDelegate : Finished Spring Data repository scanning in 33ms. Found 0 JPA repository interfaces.
appointment-service_1  | 2020-09-11 16:47:34.254  INFO 1 --- [           main] o.s.b.w.embedded.tomcat.TomcatWebServer  : Tomcat initialized with port(s): 8081 (http)
appointment-service_1  | 2020-09-11 16:47:34.300  INFO 1 --- [           main] o.apache.catalina.core.StandardService   : Starting service [Tomcat]
appointment-service_1  | 2020-09-11 16:47:34.302  INFO 1 --- [           main] org.apache.catalina.core.StandardEngine  : Starting Servlet engine: [Apache Tomcat/9.0.37]
appointment-service_1  | 2020-09-11 16:47:34.472  INFO 1 --- [           main] o.a.c.c.C.[Tomcat].[localhost].[/]       : Initializing Spring embedded WebApplicationContext
appointment-service_1  | 2020-09-11 16:47:34.473  INFO 1 --- [           main] w.s.c.ServletWebServerApplicationContext : Root WebApplicationContext: initialization completed in 3697 ms
appointment-service_1  | 2020-09-11 16:47:35.055  INFO 1 --- [           main] o.s.s.concurrent.ThreadPoolTaskExecutor  : Initializing ExecutorService 'applicationTaskExecutor'
appointment-service_1  | 2020-09-11 16:47:35.100  INFO 1 --- [           main] com.zaxxer.hikari.HikariDataSource       : HikariPool-1 - Starting...
appointment-service_1  | 2020-09-11 16:47:36.338 ERROR 1 --- [           main] com.zaxxer.hikari.pool.HikariPool        : HikariPool-1 - Exception during pool initialization.
appointment-service_1  |
appointment-service_1  | com.mysql.cj.jdbc.exceptions.CommunicationsException: Communications link failure
appointment-service_1  |
appointment-service_1  | The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
appointment-service_1  |    at com.mysql.cj.jdbc.exceptions.SQLError.createCommunicationsException(SQLError.java:174) ~[mysql-connector-java-8.0.21.jar!/:8.0.21]
appointment-service_1  |    at com.mysql.cj.jdbc.exceptions.SQLExceptionsMapping.translateException(SQLExceptionsMapping.java:64) ~[mysql-connector-java-8.0.21.jar!/:8.0.21]
appointment-service_1  |    at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:836) ~[mysql-connector-java-8.0.21.jar!/:8.0.21]
appointment-service_1  |    at com.mysql.cj.jdbc.ConnectionImpl.<init>(ConnectionImpl.java:456) ~[mysql-connector-java-8.0.21.jar!/:8.0.21]
appointment-service_1  |    at com.mysql.cj.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:246) ~[mysql-connector-java-8.0.21.jar!/:8.0.21]
appointment-service_1  |    at com.mysql.cj.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:197) ~[mysql-connector-java-8.0.21.jar!/:8.0.21]
appointment-service_1  |    at com.zaxxer.hikari.util.DriverDataSource.getConnection(DriverDataSource.java:138) ~[HikariCP-3.4.5.jar!/:na]
appointment-service_1  |    at com.zaxxer.hikari.pool.PoolBase.newConnection(PoolBase.java:358) ~[HikariCP-3.4.5.jar!/:na]
appointment-service_1  |    at com.zaxxer.hikari.pool.PoolBase.newPoolEntry(PoolBase.java:206) ~[HikariCP-3.4.5.jar!/:na]
appointment-service_1  |    at com.zaxxer.hikari.pool.HikariPool.createPoolEntry(HikariPool.java:477) [HikariCP-3.4.5.jar!/:na]
appointment-service_1  |    at com.zaxxer.hikari.pool.HikariPool.checkFailFast(HikariPool.java:560) [HikariCP-3.4.5.jar!/:na]
appointment-service_1  |    at com.zaxxer.hikari.pool.HikariPool.<init>(HikariPool.java:115) [HikariCP-3.4.5.jar!/:na]
appointment-service_1  |    at com.zaxxer.hikari.HikariDataSource.getConnection(HikariDataSource.java:112) [HikariCP-3.4.5.jar!/:na]
appointment-service_1  |    at org.springframework.jdbc.datasource.DataSourceUtils.fetchConnection(DataSourceUtils.java:158) [spring-jdbc-5.2.8.RELEASE.jar!/:5.2.8.RELEASE]
appointment-service_1  |    at org.springframework.jdbc.datasource.DataSourceUtils.doGetConnection(DataSourceUtils.java:116) [spring-jdbc-5.2.8.RELEASE.jar!/:5.2.8.RELEASE]
appointment-service_1  |    at org.springframework.jdbc.datasource.DataSourceUtils.getConnection(DataSourceUtils.java:79) [spring-jdbc-5.2.8.RELEASE.jar!/:5.2.8.RELEASE]
appointment-service_1  |    at org.springframework.jdbc.core.JdbcTemplate.execute(JdbcTemplate.java:324) [spring-jdbc-5.2.8.RELEASE.jar!/:5.2.8.RELEASE]
appointment-service_1  |    at org.springframework.boot.jdbc.EmbeddedDatabaseConnection.isEmbedded(EmbeddedDatabaseConnection.java:120) [spring-boot-2.3.2.RELEASE.jar!/:2.3.2.RELEASE]
appointment-service_1  |    at org.springframework.boot.autoconfigure.orm.jpa.HibernateDefaultDdlAutoProvider.getDefaultDdlAuto(HibernateDefaultDdlAutoProvider.java:42) [spring-boot-autoconfigure-2.3.2.RELEASE.jar!/:2.3.2.RELEASE]
appointment-service_1  |    at org.springframework.boot.autoconfigure.orm.jpa.HibernateJpaConfiguration.lambda$getVendorProperties$1(HibernateJpaConfiguration.java:130) [spring-boot-autoconfigure-2.3.2.RELEASE.jar!/:2.3.2.RELEASE]
appointment-service_1  |    at org.springframework.boot.autoconfigure.orm.jpa.HibernateSettings.getDdlAuto(HibernateSettings.java:41) ~[spring-boot-autoconfigure-2.3.2.RELEASE.jar!/:2.3.2.RELEASE]
appointment-service_1  |    at org.springframework.boot.autoconfigure.orm.jpa.HibernateProperties.determineDdlAuto(HibernateProperties.java:136) ~[spring-boot-autoconfigure-2.3.2.RELEASE.jar!/:2.3.2.RELEASE]
appointment-service_1  |    at org.springframework.boot.autoconfigure.orm.jpa.HibernateProperties.getAdditionalProperties(HibernateProperties.java:102) ~[spring-boot-autoconfigure-2.3.2.RELEASE.jar!/:2.3.2.RELEASE]
appointment-service_1  |    at org.springframework.boot.autoconfigure.orm.jpa.HibernateProperties.determineHibernateProperties(HibernateProperties.java:94) ~[spring-boot-autoconfigure-2.3.2.RELEASE.jar!/:2.3.2.RELEASE]
appointment-service_1  |    at org.springframework.boot.autoconfigure.orm.jpa.HibernateJpaConfiguration.getVendorProperties(HibernateJpaConfiguration.java:132) [spring-boot-autoconfigure-2.3.2.RELEASE.jar!/:2.3.2.RELEASE]
appointment-service_1  |    at org.springframework.boot.autoconfigure.orm.jpa.JpaBaseConfiguration.entityManagerFactory(JpaBaseConfiguration.java:133) ~[spring-boot-autoconfigure-2.3.2.RELEASE.jar!/:2.3.2.RELEASE]
appointment-service_1  |    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_212]
appointment-service_1  |    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:1.8.0_212]
appointment-service_1  |    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.8.0_212]
appointment-service_1  |    at java.lang.reflect.Method.invoke(Method.java:498) ~[na:1.8.0_212]
appointment-service_1  |    at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:154) ~[spring-beans-5.2.8.RELEASE.jar!/:5.2.8.RELEASE]
appointment-service_1  |    at org.springframework.beans.factory.support.ConstructorResolver.instantiate(ConstructorResolver.java:650) ~[spring-beans-5.2.8.RELEASE.jar!/:5.2.8.RELEASE]
appointment-service_1  |    at org.springframework.beans.factory.support.ConstructorResolver.instantiateUsingFactoryMethod(ConstructorResolver.java:635) ~[spring-beans-5.2.8.RELEASE.jar!/:5.2.8.RELEASE]
appointment-service_1  |    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateUsingFactoryMethod(AbstractAutowireCapableBeanFactory.java:1336) ~[spring-beans-5.2.8.RELEASE.jar!/:5.2.8.RELEASE]
appointment-service_1  |    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1176) ~[spring-beans-5.2.8.RELEASE.jar!/:5.2.8.RELEASE]
appointment-service_1  |    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:556) ~[spring-beans-5.2.8.RELEASE.jar!/:5.2.8.RELEASE]
appointment-service_1  |    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:516) ~[spring-beans-5.2.8.RELEASE.jar!/:5.2.8.RELEASE]
appointment-service_1  |    at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:324) ~[spring-beans-5.2.8.RELEASE.jar!/:5.2.8.RELEASE]
appointment-service_1  |    at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:226) ~[spring-beans-5.2.8.RELEASE.jar!/:5.2.8.RELEASE]
appointment-service_1  |    at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:322) ~[spring-beans-5.2.8.RELEASE.jar!/:5.2.8.RELEASE]
appointment-service_1  |    at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:202) ~[spring-beans-5.2.8.RELEASE.jar!/:5.2.8.RELEASE]
appointment-service_1  |    at org.springframework.context.support.AbstractApplicationContext.getBean(AbstractApplicationContext.java:1109) ~[spring-context-5.2.8.RELEASE.jar!/:5.2.8.RELEASE]
appointment-service_1  |    at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:869) ~[spring-context-5.2.8.RELEASE.jar!/:5.2.8.RELEASE]
appointment-service_1  |    at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:551) ~[spring-context-5.2.8.RELEASE.jar!/:5.2.8.RELEASE]
appointment-service_1  |    at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:143) ~[spring-boot-2.3.2.RELEASE.jar!/:2.3.2.RELEASE]
appointment-service_1  |    at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:758) ~[spring-boot-2.3.2.RELEASE.jar!/:2.3.2.RELEASE]
appointment-service_1  |    at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:750) ~[spring-boot-2.3.2.RELEASE.jar!/:2.3.2.RELEASE]
appointment-service_1  |    at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:397) ~[spring-boot-2.3.2.RELEASE.jar!/:2.3.2.RELEASE]
appointment-service_1  |    at org.springframework.boot.SpringApplication.run(SpringApplication.java:315) ~[spring-boot-2.3.2.RELEASE.jar!/:2.3.2.RELEASE]
appointment-service_1  |    at org.springframework.boot.SpringApplication.run(SpringApplication.java:1237) ~[spring-boot-2.3.2.RELEASE.jar!/:2.3.2.RELEASE]
appointment-service_1  |    at org.springframework.boot.SpringApplication.run(SpringApplication.java:1226) ~[spring-boot-2.3.2.RELEASE.jar!/:2.3.2.RELEASE]
appointment-service_1  |    at com.appointments.service.ServiceApplication.main(ServiceApplication.java:10) ~[classes!/:0.0.1-SNAPSHOT]
appointment-service_1  |    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_212]
appointment-service_1  |    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:1.8.0_212]
appointment-service_1  |    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.8.0_212]
appointment-service_1  |    at java.lang.reflect.Method.invoke(Method.java:498) ~[na:1.8.0_212]
appointment-service_1  |    at org.springframework.boot.loader.MainMethodRunner.run(MainMethodRunner.java:49) ~[app.jar:0.0.1-SNAPSHOT]
appointment-service_1  |    at org.springframework.boot.loader.Launcher.launch(Launcher.java:109) ~[app.jar:0.0.1-SNAPSHOT]
appointment-service_1  |    at org.springframework.boot.loader.Launcher.launch(Launcher.java:58) ~[app.jar:0.0.1-SNAPSHOT]
appointment-service_1  |    at org.springframework.boot.loader.JarLauncher.main(JarLauncher.java:88) ~[app.jar:0.0.1-SNAPSHOT]
appointment-service_1  | Caused by: com.mysql.cj.exceptions.CJCommunicationsException: Communications link failure
appointment-service_1  |
appointment-service_1  | The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
appointment-service_1  |    at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) ~[na:1.8.0_212]
appointment-service_1  |    at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62) ~[na:1.8.0_212]
appointment-service_1  |    at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45) ~[na:1.8.0_212]
appointment-service_1  |    at java.lang.reflect.Constructor.newInstance(Constructor.java:423) ~[na:1.8.0_212]
appointment-service_1  |    at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:61) ~[mysql-connector-java-8.0.21.jar!/:8.0.21]
appointment-service_1  |    at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:105) ~[mysql-connector-java-8.0.21.jar!/:8.0.21]
appointment-service_1  |    at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:151) ~[mysql-connector-java-8.0.21.jar!/:8.0.21]
appointment-service_1  |    at com.mysql.cj.exceptions.ExceptionFactory.createCommunicationsException(ExceptionFactory.java:167) ~[mysql-connector-java-8.0.21.jar!/:8.0.21]
appointment-service_1  |    at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:91) ~[mysql-connector-java-8.0.21.jar!/:8.0.21]
appointment-service_1  |    at com.mysql.cj.NativeSession.connect(NativeSession.java:144) ~[mysql-connector-java-8.0.21.jar!/:8.0.21]
appointment-service_1  |    at com.mysql.cj.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:956) ~[mysql-connector-java-8.0.21.jar!/:8.0.21]
appointment-service_1  |    at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:826) ~[mysql-connector-java-8.0.21.jar!/:8.0.21]
appointment-service_1  |    ... 57 common frames omitted
appointment-service_1  | Caused by: java.net.ConnectException: Connection refused (Connection refused)
appointment-service_1  |    at java.net.PlainSocketImpl.socketConnect(Native Method) ~[na:1.8.0_212]
appointment-service_1  |    at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:350) ~[na:1.8.0_212]
appointment-service_1  |    at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:206) ~[na:1.8.0_212]
appointment-service_1  |    at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:188) ~[na:1.8.0_212]
appointment-service_1  |    at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392) ~[na:1.8.0_212]
appointment-service_1  |    at java.net.Socket.connect(Socket.java:589) ~[na:1.8.0_212]
appointment-service_1  |    at com.mysql.cj.protocol.StandardSocketFactory.connect(StandardSocketFactory.java:155) ~[mysql-connector-java-8.0.21.jar!/:8.0.21]
appointment-service_1  |    at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:65) ~[mysql-connector-java-8.0.21.jar!/:8.0.21]
appointment-service_1  |    ... 60 common frames omitted
appointment-service_1

|

共有2个答案

奚飞星
2023-03-14

localhost始终指向环回接口（要么127.0.0.1要么：：1）。您不能，也不应该试图覆盖此。

使用docker compose时，您可以使用服务名称作为主机名，因此数据库的正确JDBC URL为：

jdbc:mysql://sql:3306/people?useSSL=false&allowPublicKeyRetrieval=true
林弘文
2023-03-14
  • 链接：在这种情况下已被弃用且无用-只需删除该行。
  • localhost在java容器内部使用将指向容器本身。您必须使用为sql容器提供的服务名称（在您的情况下为sql）。服务名称将解析为SQL容器的IP。
  • depends_on：将使java容器等待SQL容器启动，但这并不能保证SQL已经启动并运行，准备接受连接。有几种方法可以解决这个问题（等待，重启：失败，这篇文章等等）
  • 如果您的意图是只使用root用户，则不需要指定MYSQL_USER： root也不需要指定MYSQL_PASSWORD： my-Secret-pw。（
version: '3'
services:
  sql:
    image: mysql
    environment:
      MYSQL_DATABASE: people
      MYSQL_ROOT_PASSWORD: my-secret-pw
    ports:
      - "3307:3306"
  appointment-service:
    depends_on:
      - sql # This service depends on mysql. Start that first.
    restart: on-failure
    environment: # Pass environment variables to the service
      - DATABASE_HOST=sql
      - DATABASE_USER=root
      - DATABASE_PASSWORD=my-secret-pw
      - DATABASE_NAME=people
      - DATABASE_PORT=3306
    build: .
    ports:
      - "8081:8081"

server.port=8081

spring.datasource.url=jdbc:mysql://sql:3306/people?useSSL=false&allowPublicKeyRetrieval=true
spring.datasource.username=root
spring.datasource.password=my-secret-pw

url.organizations = https://hr.apografi.gov.gr/api/public/organizations
url.db = jdbc:mysql://sql:3306/people?serverTimezone=UTC
url.username = root
url.password = my-secret-pw

private Jdbi jdbi = Jdbi.create("jdbc:mysql://sql:3306/people?useSSL=false&allowPublicKeyRetrieval=true", "root", "my-secret-pw");
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连接到Postgres数据库的Docker容器将Spring Boot Docker容器连接到MongoDB Docker容器无法从spring boot docker容器连接mysql docker容器从docker容器中连接到localhostpostgres数据库[副本]在Docker容器中使用JMeter Prometheus插件（连接被拒绝）

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