Question

我对Java spring很新 - 我在尝试发送测试电子邮件时遇到以下错误。

发送电子邮件时出错：

org.springframework.mail.MailSendException：邮件服务器连接失败;嵌套异常是javax.mail.MessagingException：无法连接到SMTP主机：smtp.gmail.com，port：587; 嵌套异常是： javax.net.ssl.SSLException：无法识别的SSL消息，明文连接？失败的消息：javax.mail.MessagingException：无法连接到SMTP主机：smtp.gmail.com，port：587; 嵌套异常是： javax.net.ssl.SSLException：无法识别的SSL消息，明文连接？消息异常（1）是：消息1失败：javax.mail.MessagingException：无法连接到SMTP主机：smtp.gmail.com，port：587; 嵌套异常是： javax.net.ssl.SSLException：无法识别的SSL消息，明文连接？“

SimepleEmailController.java

package controller;

import javax.mail.internet.MimeMessage;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.mail.javamail.JavaMailSender;
import org.springframework.mail.javamail.MimeMessageHelper;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.ResponseBody;

@Controller
public class SimpleEmailController {

    @Autowired
    private JavaMailSender sender;

    @RequestMapping("/simpleemail")
    @ResponseBody
    String home() {
        try {
            sendEmail();
            return "Email Sent!";
        }catch(Exception ex) {
            return "Error in sending email: "+ex;
        }
    }

    private void sendEmail() throws Exception{
        MimeMessage message = sender.createMimeMessage();
        MimeMessageHelper helper = new MimeMessageHelper(message);

        helper.setTo("set-your-recipient-email-here@gmail.com");
        helper.setText("How are you?");
        helper.setSubject("Hi");

        sender.send(message);
    }
}

application.properties设置如下 - 在测试帐户上进行测试

spring.mail.port=587
spring.mail.host=smtp.gmail.com
spring.mail.username=romanineers@gmail.com
spring.mail.password=romanineers1
spring.mail.protocol=smtp
spring.mail.defaultEncoding=UTF-8

spring.mail.properties.mail.smtp.starttls.enable=true
spring.mail.properties.mail.smtp.auth = true
spring.mail.properties.mail.smtp.socketFactory.port = 25
spring.mail.properties.mail.smtp.socketFactory.class = javax.net.ssl.SSLSocketFactory
spring.mail.properties.mail.smtp.socketFactory.fallback = true
spring.mail.properties.mail.smtp.ssl.enable=true

support.mail.address=romanineers@gmail.com

Answer 1

从application.properties中删除此行： spring.mail.properties.mail.smtp.ssl.enable=true

由于您使用的端口587用于通过TLS发送消息。如果您使用的端口465是SMTP SSL端口，则应使用上述配置。

Answer 2

尝试使用@ as setTo（）参数进行第一次快速测试。然后，你可以让默认配置，你不需要太多。

spring.mail.host=smtp.gmail.com
spring.mail.username=romanineers@gmail.com
spring.mail.password=****** #hope it wasn't your real password :)
spring.mail.properties.mail.smtp.auth = true

Answer 3

根据您收到的错误，只需设置spring.mail.properties.mail.smtp.ssl.enable=true 属性值为false并尝试。

Answer 4

问题已解决--- javax.mail.AuthenticationFailedException is thrown while sending email in java - 必须配置gmail以允许安全性较低的应用 -

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Java spring boot - JavaMailSender错误

4 个答案: