### Question:
SendMail { public void sendSimpleMail(String subject, String to, String context) { SimpleMailMessage simpleMailMessage = new SimpleMailMessage(); simpleMailMessage.setFrom(from); simpleMailMessage.setTo(to); simpleMailMessage.setSubject(subject); simpleMailMessage.setText(context); try { javaMailSender.send(simpleMailMessage); log.info("sucessss:{}", from); } catch (Exception e) { log.info("error:{}", from); } }  void sendSimpleMail(String subject, String to, String context); void sendFileMail(String subject, String to, String context, String filepath); void sendHtmlMail(String subject, String to, String context); void sendtemplateHtmlMail(String subject, String to, String name); void sendstaticMail(String subject, String to, String context, String filepath, String fileid);  }### Answer:
@Test public void hello() throws Exception { sendMail.sendSimpleMail("aaaa","1193889747@qq.com","sdas"); }