spring 引导启动器电子邮件空指针异常

Question

我正在使用 spring 引导启动器依赖项来发送一些电子邮件。但它抛出 NullPointerException。我尝试记录电子邮件对象，它们可用。

中的代码

这是电子邮件对象

claudia.prescott@mail.com
SimpleMailMessage: from=Sustainable Educational Foundation - SEF; replyTo=null; to=claudia.prescott@mail.com; cc=; bcc=; sentDate=null; subject=APPROVED; text=MENTEE_SELECTION
dave.walters3@protonmail.com
SimpleMailMessage: from=Sustainable Educational Foundation - SEF; replyTo=null; to=dave.walters3@protonmail.com; cc=; bcc=; sentDate=null; subject=PENDING; text=MENTEE_SELECTION
michele.moore3@protonmail.com

这是错误日志：https://pastebin.com/QFLM9vwi

Answer 1

请从

移除静电

@Autowired
private static JavaMailSender emailSender;

因为静态成员不能自动装配。此外，EmailUtil 不是 spring bean，因此自动装配将不起作用。

已更新：

电子邮件实用工具：

@Component
public class EmailUtil {
    
    @Autowired
    private JavaMailSender emailSender;

程序服务：

@Service
public class ProgramService {

       @Autowired
       private EmailUtil emailUtil

......
public Program updateState(long id) throws ResourceNotFoundException {
      emailUtil.sendSimpleMessage(email);

spring 引导启动器电子邮件空指针异常

spring boot starter email null pointer exception

java

email

spring

nullpointerexception

spring-boot