java - com.mongodb.MongoSocketOpenException : Exception opening socket(MongoDB, docker )

Question

我尝试使用 docker 镜像启动我的应用程序(Spring Boot + Spring Cloud + Eureka + MongoDB)，但我无法连接到 MongoDB。

异常:

exception "com.mongodb.MongoSocketOpenException: Exception opening socket."

我使用执行命令启动我的应用程序:docker-compose up --build

Docker 日志:

com.mongodb. MongoSocket0penException: Exception opening socket at com.mongodb. connection. SocketStream.open(SocketStream.java: 63) ~|mongo-java-driver-3.2.2.jar!/:naj
  at com. monsoob: connection. berettaberverwontortser/ersonito-kunnablearancerainitservertonitolnava:1203-dionso-java-driver*3?2.2.jarl/:nal
  at : java. lang. Thread.run (Thread. java: 745) Lna:1.8.0_111]
Caused by: java.net.ConnectException: Connection refused (Connection refused)
  at java.net.PlainSocketImpl.socketConnect (Native Method) ~ [na: 1.8.0_1111 at java.net.AbstractPlainSocketImp1.doConnect (AbstractplainSocketImpl.java:350) ~ [na: 1.8.0_111]
  at java.net.AbstractPlainSocketImp1.connectToAddress(AbstractPlainSocketImp1.java:206)~[na:1.8.0_1111 
  at java.net .AbstractPlainSocketImp1.connect (AbstractPlain5ocket Imp],java:188) ~[na:1.8.0_111]
  at java.net.SocksSocketImpl.connect (SocksSocketImpl.java:392) ~|na:1.8.0_111] java.net Socket. connect (Socket, java: 589) ~[na:1.8:0-111]
  at com.mongodb.connection. SocketStreamHelper.initialize(SocketStreamHelper. java: 50) ~ [mongo-java-driver-3.2.2.ar!/:na] at com. mongodb. connection. SocketStream.open(SocketStream. java:58) ~ [mongo-java-driver-3.2.2.jar!/:na]
3 common frames omitted

应用程序.yml:

# Spring properties
spring:
  application:
    name: car-service
  data:
    mongodb.host: localhost
    mongodb.port: 32769
    mongodb.uri: mongodb://localhost/test
    mongo.repositories.enabled: true


# Discovery Server Access
eureka:
    client:
      serviceUrl:
        defaultZone: http://localhost:8761/eureka/

# HTTP Server (Tomcat) Port
server: 
  port: 2220

error:
  whitelabel:
    enabled: false

docker-compose.yml:

eureka:
  build: ./eureka-discovery-service
  ports:
    - "8761:8761"

mongodb:
  image: mongo:3.0.4
  ports:
    - "32769:32769"

postgresql:
  image: postgres:9.6.1
  ports:
    - "32770:32770"

gateway-service:
  build: ./gateway-service
  ports:
    - "9090:9090"
  links:
    - eureka
  environment:
    SPRING_APPLICATION_NAME: gateway-service
    SPRING_PROFILES_ACTIVE: enableEureka
    EUREKA_INSTANCE_PREFER_IP_ADDRESS: "true"
    EUREKA_CLIENT_SERVICEURL_DEFAULTZONE: http://eureka:8761/eureka/

airplane-service:
  build: ./airplane-service
  ports:
    - "2222:2222"
  links:
    - eureka
    - postgresql
  environment:
    SPRING_APPLICATION_NAME: airplane-service
    SPRING_PROFILES_ACTIVE: enableEureka
    EUREKA_INSTANCE_PREFER_IP_ADDRESS: "true"
    EUREKA_CLIENT_SERVICEURL_DEFAULTZONE: http://eureka:8761/eureka/
    SPRING_SLEUTH_ENABLED: "true"
    SPRING_DATASOURCE_POSTGRESQL_URL: jdbc:postgresql://localhost:32770/postgres

car-service:
  build: ./car-service
  ports:
    - "2220:2220"
  links:
    - eureka
    - mongodb
  environment:
    SPRING_APPLICATION_NAME: car-service
    SPRING_PROFILES_ACTIVE: enableEureka
    EUREKA_INSTANCE_PREFER_IP_ADDRESS: "true"
    EUREKA_CLIENT_SERVICEURL_DEFAULTZONE: http://eureka:8761/eureka/
    SPRING_SLEUTH_ENABLED: "true"
    SPRING_DATA_MONGODB_URI: mongodb://localhost:32769/test


machine-service:
  build: ./machine-service
  ports:
    - "2224:2224"
  links:
    - eureka
  environment:
    SPRING_APPLICATION_NAME: machine-service
    SPRING_PROFILES_ACTIVE: enableEureka
    EUREKA_INSTANCE_PREFER_IP_ADDRESS: "true"
    EUREKA_CLIENT_SERVICEURL_DEFAULTZONE: http://eureka:8761/eureka/
    SPRING_SLEUTH_ENABLED: "true"

为什么打开套接字时出现异常？如何解决这个问题？

Answer 1

您正在将属性文件中的 mongodb 主机设置为 localhost。在容器本地主机地址自身中，但是您的mongodb 不在汽车服务运行的那个容器(汽车服务)中。当您使用docker compose时，您可以用它的名字寻址一个容器。在您的情况下，它是 mongodb。