springbootmail发送邮件异常解决

问题描述

DEBUG: JavaMail version 1.6.1
DEBUG: successfully loaded resource: /META-INF/javamail.default.providers
DEBUG: Tables of loaded providers
DEBUG: Providers Listed By Class Name: {com.sun.mail.smtp.SMTPSSLTransport&＃61;javax.mail.Provider[TRANSPORT,smtps,com.sun.mail.smtp.SMTPSSLTransport,Oracle], com.sun.mail.smtp.SMTPTransport&＃61;javax.mail.Provider[TRANSPORT,smtp,com.sun.mail.smtp.SMTPTransport,Oracle], com.sun.mail.imap.IMAPSSLStore&＃61;javax.mail.Provider[STORE,imaps,com.sun.mail.imap.IMAPSSLStore,Oracle], com.sun.mail.pop3.POP3SSLStore&＃61;javax.mail.Provider[STORE,pop3s,com.sun.mail.pop3.POP3SSLStore,Oracle], com.sun.mail.imap.IMAPStore&＃61;javax.mail.Provider[STORE,imap,com.sun.mail.imap.IMAPStore,Oracle], com.sun.mail.pop3.POP3Store&＃61;javax.mail.Provider[STORE,pop3,com.sun.mail.pop3.POP3Store,Oracle]}
DEBUG: Providers Listed By Protocol: {imaps&＃61;javax.mail.Provider[STORE,imaps,com.sun.mail.imap.IMAPSSLStore,Oracle], imap&＃61;javax.mail.Provider[STORE,imap,com.sun.mail.imap.IMAPStore,Oracle], smtps&＃61;javax.mail.Provider[TRANSPORT,smtps,com.sun.mail.smtp.SMTPSSLTransport,Oracle], pop3&＃61;javax.mail.Provider[STORE,pop3,com.sun.mail.pop3.POP3Store,Oracle], pop3s&＃61;javax.mail.Provider[STORE,pop3s,com.sun.mail.pop3.POP3SSLStore,Oracle], smtp&＃61;javax.mail.Provider[TRANSPORT,smtp,com.sun.mail.smtp.SMTPTransport,Oracle]}
DEBUG: successfully loaded resource: /META-INF/javamail.default.address.map
DEBUG: getProvider() returning javax.mail.Provider[TRANSPORT,smtp,com.sun.mail.smtp.SMTPTransport,Oracle]
DEBUG SMTP: useEhlo true, useAuth false
DEBUG SMTP: trying to connect to host "smtp.163.com", port 465, isSSL false
DEBUG SMTP: EOF: [EOF]
DEBUG SMTP: could not connect to host "smtp.163.com", port: 465, response: -1
2021-06-02 16:35:42.323 ERROR 11141 --- [nio-8999-exec-1] o.a.c.c.C.[.[.[/].[dispatcherServlet] : Servlet.service() for servlet [dispatcherServlet] in context with path [] threw exception [Request processing failed; nested exception is org.springframework.mail.MailSendException: Mail server connection failed; nested exception is javax.mail.MessagingException: Could not connect to SMTP host: smtp.163.com, port: 465, response: -1. Failed messages: javax.mail.MessagingException: Could not connect to SMTP host: smtp.163.com, port: 465, response: -1; message exceptions (1) are:
Failed message 1: javax.mail.MessagingException: Could not connect to SMTP host: smtp.163.com, port: 465, response: -1] with root causejavax.mail.MessagingException: Could not connect to SMTP host: smtp.163.com, port: 465, response: -1at com.sun.mail.smtp.SMTPTransport.openServer(SMTPTransport.java:2197) ~[javax.mail-1.6.1.jar:1.6.1]at com.sun.mail.smtp.SMTPTransport.protocolConnect(SMTPTransport.java:740) ~[javax.mail-1.6.1.jar:1.6.1]at javax.mail.Service.connect(Service.java:366) ~[javax.mail-1.6.1.jar:1.6.1]at org.springframework.mail.javamail.JavaMailSenderImpl.connectTransport(JavaMailSenderImpl.java:515) ~[spring-context-support-5.0.8.RELEASE.jar:5.0.8.RELEASE]at org.springframework.mail.javamail.JavaMailSenderImpl.doSend(JavaMailSenderImpl.java:435) ~[spring-context-support-5.0.8.RELEASE.jar:5.0.8.RELEASE]at org.springframework.mail.javamail.JavaMailSenderImpl.send(JavaMailSenderImpl.java:321) ~[spring-context-support-5.0.8.RELEASE.jar:5.0.8.RELEASE]

项目配置

spring:mail:# 配置 SMTP 服务器地址host: smtp.163.com# 发送者邮箱username: cocoococ&＃64;163.com# 配置密码&＃xff0c;注意不是真正的密码&＃xff0c;而是刚刚申请到的授权码password: ajhdasdkaklsjdl# 端口号465或587port: 465# 默认的邮件编码为UTF-8default-encoding: UTF-8# 配置SSL 加密工厂properties:mail:smtp:socketFactoryClass: javax.net.ssl.SSLSocketFactory#表示开启 DEBUG 模式&＃xff0c;这样&＃xff0c;邮件发送过程的日志会在控制台打印出来&＃xff0c;方便排查错误debug: true


发送代码

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.mail.SimpleMailMessage;
import org.springframework.mail.javamail.JavaMailSender;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;import java.util.Date;&＃64;RestController
&＃64;RequestMapping("test")
public class TestController {&＃64;AutowiredJavaMailSender javaMailSender;&＃64;GetMapping("sendMail")public void sendMail(){SimpleMailMessage message &＃61; new SimpleMailMessage();// 设置邮件主题message.setSubject("这是一封测试邮件");// 设置邮件发送者&＃xff0c;这个跟application.yml中设置的要一致message.setFrom("cocoococ&＃64;163.com");// 设置邮件接收者&＃xff0c;可以有多个接收者&＃xff0c;中间用逗号隔开&＃xff0c;以下类似// message.setTo("10*****16&＃64;qq.com","12****32*qq.com");message.setTo("222qwioqin&＃64;qq.com");// 设置邮件发送日期message.setSentDate(new Date());// 设置邮件的正文message.setText("这是测试邮件的正文");javaMailSender.send(message);}}


问题调试

可疑点在于上面红线位置

• 我明明设置了账号、授权码登录&＃xff0c;但是useAuth还是false
• isSsl 也是false

从报错堆栈中找到
com.sun.mail.smtp.SMTPTransport#protocolConnect

就是说 useAuth 其实是从属性中解析的&＃xff0c;这里的name代表协议类型&＃xff08;smtp、pop3&＃xff09;
那么完整的属性名应该是 mail.smtp.auth

接着
com.sun.mail.smtp.SMTPTransport#openServer(java.lang.String, int)

这里的isSSL是成员属性

根据调试只有在构造函数中才会赋值
com.sun.mail.smtp.SMTPTransport#SMTPTransport(javax.mail.Session, javax.mail.URLName, java.lang.String, boolean)

那么完整的属性名应该是 mail.smtp.ssl.enable
所以只要修改yml文件即可

解决方案


spring:mail:# 配置 SMTP 服务器地址host: smtp.163.com# 发送者邮箱username: cocoococ&＃64;163.com# 配置密码&＃xff0c;注意不是真正的密码&＃xff0c;而是刚刚申请到的授权码password: ajhdasdkaklsjdl# 端口号465或587port: 465# 默认的邮件编码为UTF-8default-encoding: UTF-8# 配置SSL 加密工厂properties:mail:smtp:starttls:enable: trueauth: truessl:enable: truesocketFactoryClass: javax.net.ssl.SSLSocketFactory#表示开启 DEBUG 模式&＃xff0c;这样&＃xff0c;邮件发送过程的日志会在控制台打印出来&＃xff0c;方便排查错误debug: true
server:port: 8999servlet:path: /mall