java - Spring MVC 注册时发送电子邮件

Question

我试图在用户的帐户注册后向其发送电子邮件，我可以让我的代码在单独的项目中工作(简单的表单输入等)，但是当我尝试将相同的代码添加到我的应用程序时，它会出现以下错误

SEVERE: Context initialization failed
org.springframework.beans.factory.BeanCreationException error

Could not autowire method: public void com.finalProject.school.controller.AppController.setMailSender(org.springframework.mail.javamail.JavaMailSender); nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type [org.springframework.mail.javamail.JavaMailSender] found for dependency: expected at least 1 bean which qualifies as autowire candidate for this dependency. Dependency annotations: {}

这是我将新用户添加到数据库的代码(工作正常)以及发送电子邮件的代码，这就是给我带来错误的代码

@RequestMapping(value = { "/newuser" }, method = RequestMethod.POST)
public String saveUser(@Valid User user, BindingResult result, @RequestParam("firstName") String firstName,
        @RequestParam("password") String password, @RequestParam("email") String emailAddress,
        ModelMap model, Model model2) {

    if (result.hasErrors()) {
        return "registration";
    }


    if(!userService.isUserSSOUnique(user.getId(), user.getSsoId())){
        FieldError ssoError =new FieldError("user","ssoId",messageSource.getMessage("non.unique.ssoId", new String[]{user.getSsoId()}, Locale.getDefault()));
        result.addError(ssoError);
        return "registration";
    }



    String status = null;

    try {
        MimeMessage message = mailSender.createMimeMessage();
        MimeMessageHelper helper = new MimeMessageHelper(message,true,"UTF-8");
        helper.setFrom("Administrator");
        helper.setTo(emailAddress);
        helper.setSubject("Registration confirmation");

        Map<String, Object> params = new HashMap<String, Object>();
        params.put("firstName", firstName);
        params.put("password", password);

        String text = VelocityEngineUtils.mergeTemplateIntoString(velocityEngine, "spring/emailRegistration.vm", "UTF-8", params);

        helper.setText(text, true);
        mailSender.send(message);
        status = "Confirmation email is sent to your address (" + emailAddress + ")";
    } catch (MessagingException e) {
        status = "There was an error in email sending. Please check your email address: " + emailAddress;
    }

    model2.addAttribute("message", status);

    userService.saveUser(user);

    model.addAttribute("success", "User " + user.getFirstName() + " "+ user.getLastName() + " registered successfully");
    model.addAttribute("loggedinuser", getPrincipal());
    //return "success";
    return "registrationsuccess";
}

有什么办法可以解决这个问题吗？

应用程序配置类

<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:context="http://www.springframework.org/schema/context"
xsi:schemaLocation="http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans-2.5.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context-2.5.xsd">

<context:component-scan base-package="com.finalProject.school" />

Answer 1

如果您使用的是 Spring Boot，您可能没有在 application.properties 文件中包含以下属性。

spring.mail.host = smtp.gmail.com
spring.mail.username = abc@abc.com
spring.mail.password = xyz
spring.mail.port=587
spring.mail.properties.mail.smtp.starttls.enable = true
spring.mail.protocol=smtp

更新

好的。将以下内容放入您的配置文件中。

<bean id="mailSender" class="org.springframework.mail.javamail.JavaMailSenderImpl">

    <property name="host" value="smtp.gmail.com" />
    <property name="port" value="587" />
    <property name="username" value="myemail1@gmail.com" />
    <property name="password" value="password!" />

    <!-- The name of the property, following JavaBean naming conventions -->
    <property name="javaMailProperties">
        <props>
            <prop key="mail.transport.protocol">smtp</prop>
            <prop key="mail.smtp.auth">true</prop>
            <prop key="mail.smtp.starttls.enable">true</prop>
            <prop key="mail.debug">true</prop>
        </props>
    </property>
</bean>