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spring - 如何使用 Spring Batch 发送邮件

问题描述

我想在处理器之后发送邮件。这是我的步骤配置：

public Step remindByMail() {
        return stepBuilderFactory
                .get("remindByMail")
                .<Customer, SimpleMailMessage> chunk(1)
                .reader(getCustomerList())
                .processor(new MailProcessor())
                .writer(new SendMail())
                .build();
    }

public class MailProcessor implements ItemProcessor<Customer, SimpleMailMessage> {

        private String from = "aaa@oku.com";

        @Override
        public SimpleMailMessage process(Customer customer) throws Exception {

            SimpleMailMessage message = new SimpleMailMessage();

            message.setFrom(from);
            message.setTo("duyetpt@oku.com");
            message.setSubject("Welcome " + customer.getUsername());
            message.setText(customer.getInfo());

            return message;
        }
    }

public class SendMail implements ItemWriter<SimpleMailMessage> {

        @Override
        public void write(List<? extends SimpleMailMessage> messages) throws Exception {
            messages.stream().forEach((message)->mailSender.send(message));

        }

}

我已经在application.properties文件中设置了这些属性，

spring.mail.default-encoding=UTF-8
spring.mail.protocol=smtp
spring.mail.host=195.179.79.52
spring.mail.port=25
spring.mail.username=admin
spring.mail.password=admin
spring.mail.properties.mail.smtp.auth=true


我的 pom.xml：

<dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-batch</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-task</artifactId>
            <version>2.1.3.RELEASE</version>
        </dependency>
        <dependency>
            <groupId>org.springframework.batch</groupId>
            <artifactId>spring-batch-test</artifactId>
            <scope>test</scope>
        </dependency>
        <dependency>
            <groupId>com.oracle.ojdbc</groupId>
            <artifactId>ojdbc8</artifactId>
            <version>19.3.0.0</version>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-mail</artifactId>
        </dependency>


但是，我得到了错误：

org.springframework.mail.MailAuthenticationException: Authentication failed; nested exception is javax.mail.AuthenticationFailedException: No authentication mechanisms supported by both server and client
    at org.springframework.mail.javamail.JavaMailSenderImpl.doSend(JavaMailSenderImpl.java:440)
    at org.springframework.mail.javamail.JavaMailSenderImpl.send(JavaMailSenderImpl.java:323)
    at org.springframework.mail.javamail.JavaMailSenderImpl.send(JavaMailSenderImpl.java:312)
.....
Caused by: javax.mail.AuthenticationFailedException: No authentication mechanisms supported by both server and client
    at com.sun.mail.smtp.SMTPTransport.authenticate(SMTPTransport.java:880)
    at com.sun.mail.smtp.SMTPTransport.protocolConnect(SMTPTransport.java:780)
.....

使用 Spring Batch 发送邮件应该怎么做？

标签： springspring-batch

解决方案

这是我对您的错误消息的猜测-服务器和客户端都不支持 需要从您的配置中删除以下属性的身份验证机制。

spring.mail.username=admin
spring.mail.password=admin
spring.mail.properties.mail.smtp.auth=true

在 Spring Boot + Batch 中，我使用我组织的服务器发送电子邮件而没有这些属性，因为不需要用户名和密码，因为程序必须驻留在组织网络中，这是唯一的安全性。

如果有人尝试使用- gmail 、 yahoo 等，那将是完全不同的故事。

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