Java Spring Boot 1.2.5.RELEASE - 通过 Gmail SMTP 发送电子邮件
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Spring Boot 1.2.5.RELEASE - Sending E-mail via Gmail SMTP
提问by InsFi
Firstly, I need to say that sending email with 1.2.0.RELEASE works fine
首先，我需要说用 1.2.0.RELEASE 发送电子邮件工作正常
application.properties:
应用程序属性：
spring.mail.host = smtp.gmail.com
spring.mail.username = *****@gmail.com
spring.mail.password = ****
spring.mail.properties.mail.smtp.auth = true
spring.mail.properties.mail.smtp.socketFactory.port = 465
spring.mail.properties.mail.smtp.socketFactory.class = javax.net.ssl.SSLSocketFactory
spring.mail.properties.mail.smtp.socketFactory.fallback = false
pox.xml
痘痘.xml
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>1.2.0.RELEASE</version>
<relativePath/>
</parent>
.......
......
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-mail</artifactId>
</dependency>
After changing parent version to 1.2.5.RELEASE email sending hasn't worked
将父版本更改为 1.2.5.RELEASE 后，电子邮件发送无效
Docs says:If spring.mail.host and the relevant libraries (as defined by spring-boot-starter-mail) are available, a default JavaMailSender is created if none exists.
文档说：如果 spring.mail.host 和相关库（由 spring-boot-starter-mail 定义）可用，如果不存在，则会创建默认的 JavaMailSender。
So i've added
所以我添加了
<dependency>
<groupId>javax.mail</groupId>
<artifactId>mail</artifactId>
<version>1.4.7</version>
</dependency>
It hasn't helped and then i've replaced it to
它没有帮助，然后我将其替换为
<dependency>
<groupId>com.sun.mail</groupId>
<artifactId>javax.mail</artifactId>
<version>1.5.4</version>
</dependency>
Also i've tried
我也试过
spring.mail.host = smtp.gmail.com
spring.mail.username = *****@gmail.com
spring.mail.password = ****
spring.mail.port = 465
Result the same.
It's not a problem to create and configure @Bean manually. But I want to use all beauty of Spring Boot.
Please point me to my mistakes.
结果一样。
手动创建和配置@Bean 不是问题。但我想使用 Spring Boot 的所有美。
请指出我的错误。
Thanks in advance
提前致谢
采纳答案by Andy Wilkinson
It looks like there's a regression/behaviour change in Java Mail. The changeis in both 1.5.3 and 1.5.4. Your app works with Boot 1.2.0 as it uses Java Mail 1.5.2. It fails with Boot 1.2.5 as it uses Java Mail 1.5.4.
看起来 Java Mail 中存在回归/行为变化。更改在 1.5.3 和 1.5.4 中都有。您的应用程序使用 Boot 1.2.0，因为它使用 Java Mail 1.5.2。它在 Boot 1.2.5 中失败，因为它使用 Java Mail 1.5.4。
The problem in 1.5.3+ appears to be that the SMTP transport connects on port 465 and GMail expects an SSL handshake. Java Mail incorrectly thinks it's not using SSL so it never initiates the handshake and the connection attempt (eventually) times out. You can convince Java Mail to do the right thing by being explicit about the use of SSL. Add the following to application.properties:
1.5.3+ 中的问题似乎是 SMTP 传输在端口 465 上连接，而 GMail 需要 SSL 握手。Java Mail 错误地认为它没有使用 SSL，因此它永远不会启动握手并且连接尝试（最终）超时。您可以通过明确说明 SSL 的使用来说服 Java Mail 做正确的事情。将以下内容添加到application.properties：
spring.mail.properties.mail.smtp.ssl.enable = true
