Java的Spring框架中实现发送邮件功能的核心代码示例

前端技术 2023/09/08 Java

Spring中已经封装了邮件操作类，通过spring配置文件可以便捷地注入到controller、action等地方。
下面是配置：

<!-- mail sender --> 
  <bean id=\"mailSender\" class=\"org.springframework.mail.javamail.JavaMailSenderImpl\" 
    p:host=\"${mail.host}\" p:port=\"${mail.port}\"  
    p:username=\"${mail.user}\" p:password=\"${mail.passwd}\"></bean>

       
mail配置

Email Configuration： 
mail.host=smtp.163.com 
mail.port=25 
mail.user=xxxxxx@163.com 
mail.passwd=xxxxxxxx 
mail.from=xxxxxx@163.com

控制器中注入mailSender：

@Controller 
public class EmailController { 
  private MailSender mailSender; 
  @Value(\"${mail.from}\") 
  String emailFrom; 
   
  @Autowired 
  public void setMailSender(MailSender mailSender) { 
    this.mailSender = mailSender; 
  } 
   
  @RequestMapping(value=\"/sendEmail\",method=RequestMethod.POST) 
  public ModelAndView sendEmail(@ModelAttribute(\"newEmail\") ContactEmail newEmail, 
      BindingResult bindResult,SessionStatus status){ 
    SimpleMailMessage message = new SimpleMailMessage(); 
    message.setTo(newEmail.getTo()); 
    message.setFrom(emailFrom); 
    message.setSubject(newEmail.getSubject()); 
    message.setText(newEmail.getContent()); 
    String result = \"\"; 
    try{ 
      mailSender.send(message); 
      result = \"Email was sent!\"; 
    }catch(MailException e){ 
      result = \"Sending email failed!<br/><hr/>\"+e.getMessage(); 
    } 
    ModelAndView view = new ModelAndView(\"emailResult\"); 
    view.addObject(\"result\", result); 
    return view; 
  } 
}

mail form：

<form:form action=\"sendEmail.do\" method=\"post\" commandName=\"newEmail\"> 
  <div> 
    <p>　　 to:<form:input path=\"to\" cssStyle=\"width:260px;\"/> 
      <form:errors path=\"to\" cssStyle=\"color:red;\"/></p> 
    <p>subject:<form:input path=\"subject\" cssStyle=\"width:260px;\"/> 
      <form:errors path=\"subject\" cssStyle=\"color:red;\"/></p> 
    <p>content:<form:textarea path=\"content\" rows=\"5\" cols=\"60\"></form:textarea><br/> 
      <form:errors path=\"content\" cssStyle=\"color:red;\"/></p> 
    <p><input type=\"submit\" value=\"confirm and send\"/></p> 
  </div> 
   
</form:form>

发送带附件的邮件：

try{
  JavaMailSenderImpl senderImpl = new JavaMailSenderImpl();
  
  Properties props = new Properties();
  props.put(\"mail.smtp.auth\", \"true\");
  senderImpl.setHost(\"smtp.163.com\");
  senderImpl.setUsername(\"zhangfl85\");
  senderImpl.setPassword(\"851010\");
  senderImpl.setJavaMailProperties(props);
  MimeMessage mimeMessge = senderImpl.createMimeMessage();
 
  MimeMessageHelper mimeMessageHelper = new MimeMessageHelper(mimeMessge,true);
   
  mimeMessageHelper.setTo(\"zhangfl85@126.com\");
  mimeMessageHelper.setFrom(\"zhangfl85@163.com\");
  mimeMessageHelper.setSubject(\"添加附件测试\");
  mimeMessageHelper.setText(\"test\",true);  FileSystemResource img = new FileSystemResource(new File(\"I:/liang.jpg\"));
   mimeMessageHelper.addAttachment(MimeUtility.encodeWord(\"3M样品仓库标准送货单模板.jpg\"),
,img);   
   senderImpl.send(mimeMessge);
 }catch(Exception e){
  e.printStackTrace();
 }

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