“This is my first day to participate in the Gwen Challenge.

Dockerfile

Build an image from a simple Dockerfile (consumer-service-rabbitMQ /v1.0)

FROM openjdk:8-alpine
MAINTAINER maishuren
EXPOSE 8001
ADD target/consumer-rabbit-1.0-SNAPSHOT.jar /
ENTRYPOINT ["java"."-jar"."/ consumer - rabbit - 1.0 - the SNAPSHOT. Jar"]
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Run the container

Docker run - d - name consumer - service - the rabbitmq - v1.0 - p, 8001:8001 - v/etc/timezone: / etc/timezone - v The/etc/localtime: / etc/localtime consumer - service - the rabbitmq/v1.0Copy the code

Yml configuration

Yml configuration for sending emails

spring:
  mail:
    port: 465
    host: smtp.qq.com
    username: Qq email
    password: Authorization code and so on
    from: Qq email
    properties:
      mail:
        smtp:
          auth: true
          socketFactory: 
            port: 25
            class: javax.net.ssl.SSLSocketFactory
            fallback: false
          starttls:
            enable: true
            required: true
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After running, an error is reported when sending an email. Because SMTP uses port 25 by default to send mail, port 25 is not open when the container is run.

Redeploy the container to open port 25

Docker run - d - name consumer - service - the rabbitmq - v1.0 - p, 8001:8001 - p - v/etc/timezone: when the/etc/timezone - v The/etc/localtime: / etc/localtime consumer - service - the rabbitmq/v1.0Copy the code

After the deployment is successful, the above error is reported when invoked again. After some twists and turns, IT was found that the server manufacturer shielded port 25. I heard that the server I deployed used Ali Cloud server can apply for unlocking port 25. But instead of requesting unblocking, I use another port to send emails.

Redeploy using port 465 to send mail

spring:
  mail:
    port: 465
    host: smtp.qq.com
    username: Qq email
    password: Authorization code and so on
    from: Qq email
    properties:
      mail:
        smtp:
          auth: true
          socketFactory: 
            port: 465
            class: javax.net.ssl.SSLSocketFactory
            fallback: false
          starttls:
            enable: true
            required: true
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Redeploying the container

Docker run - d - name consumer - service - the rabbitmq - v1.0 - p, 8001:8001 - p, 465:465 - v/etc/timezone: / etc/timezone - v The/etc/localtime: / etc/localtime consumer - service - the rabbitmq/v1.0Copy the code

Finally, the mail sending interface is invoked, and the mail is successfully sent

conclusion

In fact, the problem is that the server port 25 is blocked, change the port to send mail