Spring Boot 构建问题

如何解决Spring Boot 构建问题

    @Configuration
    public class EmailConfig {
        
        private EmailProperties emailProp;
        
        @Autowired
        ConstantRepository constantRepository;
        
        public EmailConfig(EmailProperties emailProp) {
            this.emailProp = emailProp;
        }
        @Bean
        public JavaMailSender getJavaMailSender() {
Constants cons = constantRepository.findByConstantKeyAndStatus("DEFAULT_MAIL_ACCOUNT_CREDENTIAL",true);
        String password = cons.getValue();
}

在这里，我试图从数据库中获取密码，但问题是在构建应用程序时它调用了存储库，这导致失败，因为 IP 白名单问题出现错误：无法获取 JDBC 连接。

如何在构建应用程序时停止这些 repo 调用

解决方法

您可以在配置级别使用@Lazy 注解。以便在首次请求时在运行时创建 bean。

 @Configuration
    @Lazy
    public class EmailConfig {
        
        private EmailProperties emailProp;
        
        @Autowired
        ConstantRepository constantRepository;
        
        public EmailConfig(EmailProperties emailProp) {
            this.emailProp = emailProp;
        }
        @Bean
        public JavaMailSender getJavaMailSender() {
Constants cons = constantRepository.findByConstantKeyAndStatus("DEFAULT_MAIL_ACCOUNT_CREDENTIAL",true);
        String password = cons.getValue();
}

参考：https://www.baeldung.com/spring-lazy-annotation