使用电子邮件服务时发生Grails错误

使用电子邮件服务时发生Grails错误,grails,groovy,controller,service,email,Grails,Groovy,Controller,Service,Email,这是控制器 类JavaMailerController{ JavaMailerService javamailerservice def x = {javamailerservice.serviceMethod()} } 这就是服务 导入javax.mail；；导入 javax.mail.internet；导入 java.util.* 类JavaMailerService{ boolean transactional = false def serviceMethod() { String

JavaMailerService javamailerservice
def x = {javamailerservice.serviceMethod()} }

boolean transactional = false

def serviceMethod() { String  d_email = "thisemail@gmail.com",
        d_password = "thispassword",
        d_host = "smtp.gmail.com",
        d_port  = "587",
        m_to = "thisto@gmail.com",
        m_subject = "Testing",
        m_text = "Hey, this is the testing email.";

    Properties props = new Properties();
    props.put("mail.smtp.user", d_email);
    props.put("mail.smtp.host", d_host);
    props.put("mail.smtp.port", d_port);
    props.put("mail.smtp.starttls.enable","true");

class JavaMailerController {
   JavaMailerService javaMailerService
   def x = {
      javaMailerService.serviceMethod()
   } 
}

class JavaMailerController {
   JavaMailerService javaMailerService
   def x = {
      javaMailerService.serviceMethod()
   } 
}