标签：add idt day pen async xxx python ice asio
测试如下
1、不是异步方法的时候：
进行等待三秒再进行应答
@Service public class AsynService { public void hello(){ try { Thread.sleep(3000); } catch (InterruptedException e) { e.printStackTrace(); } System.out.println("处理数据....."); } }
controller类：
@RestController public class AsyncController { @Autowired AsyncService asyncService; @GetMapping("/hello") public String hello(){ asyncService.hello(); return "success"; } }
访问链接服务器3秒之后才给出响应；
2、是异步方法的时候
@Service public class AsynService { //告诉spring这是一个异步的方法 @Async public void hello(){ try { Thread.sleep(3000); } catch (InterruptedException e) { e.printStackTrace(); } System.out.println("处理数据....."); } }
要想@Async注解起效果还需开启允许异步注解
@EnableAsync //开启异步注解 @SpringBootApplication public class Springboot04TaskApplication { public static void main(String[] args) { SpringApplication.run(Springboot04TaskApplication.class, args); } }
定时任务方法（这里的例子是星期一到星期六的每天的每小时的每分钟打印一次定时任务开启）
@Service public class ScheduleService { //定时任务 //cron：second、minute、hour、day of month、day of week @Scheduled(cron = "0 * * * * MON-SAT") public void hello(){ System.out.println("定时任务开启..."); } }
开启允许定时任务的注解
@EnableScheduling //开启基于注解的定时任务 @SpringBootApplication public class Springboot04TaskApplication { public static void main(String[] args) { SpringApplication.run(Springboot04TaskApplication.class, args); } }
启动服务之后没隔一分钟就打印一次
在任意分钟的0-4s进行打印
@Scheduled(cron = "0-4 * * * * 0-7") public void hello(){ System.out.println("定时任务开启..."); }
<dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-mail</artifactId> </dependency>
查看springboot的mail的相关自动配置
注入的邮件操作类
@Bean JavaMailSenderImpl mailSender(Session session) { JavaMailSenderImpl sender = new JavaMailSenderImpl(); sender.setDefaultEncoding(this.properties.getDefaultEncoding().name()); sender.setSession(session); return sender; }
相关的配置属性
@ConfigurationProperties( prefix = "spring.mail" ) public class MailProperties { private static final Charset DEFAULT_CHARSET; private String host; private Integer port; private String username; private String password; private String protocol = "smtp"; private Charset defaultEncoding; private Map<String, String> properties; private String jndiName;
我们是通过中间服务器来发送邮箱的
spring.mail.username=xxxxxxxxx@qq.com //注意是授权密码，非登录密码 spring.mail.password=rmdwtmbkrwpibddd spring.mail.host=smtp.qq.com //配置ssl安全连接 spring.mail.properties.mail.smtp.ssl.enable=true
授权密码的获取：
进入qq邮箱，点击设置
点击账户
先开启smtp服务，然后点击获取授权码（需要发送短信）
@Autowired JavaMailSenderImpl mailSender; @Test void contextLoads() { SimpleMailMessage mailMessage = new SimpleMailMessage(); //邮件设置 //标题 mailMessage.setSubject("通知，下午开会"); //内容 mailMessage.setText("3点钟"); //收件人邮箱 mailMessage.setTo("xxxxxxxxxx@qq.com"); //发件人邮箱 mailMessage.setFrom("xxxxxxxxx@qq.com"); mailSender.send(mailMessage); }
测试成功
@Test public void test02() throws MessagingException { //创建一个复杂的消息邮件 MimeMessage mimeMessage = mailSender.createMimeMessage(); //用mimeMessageHelper对邮箱进行设置 MimeMessageHelper mimeMessageHelper = new MimeMessageHelper(mimeMessage,true); //标题 mimeMessageHelper.setSubject("通知，下午开会"); //内容（可含html代码片段的话在后面添加参数true） mimeMessageHelper.setText("<b style=‘color:red‘>4点钟</b>",true); //收件人邮箱 mimeMessageHelper.setTo("1372365122@qq.com"); //发件人邮箱 mimeMessageHelper.setFrom("973951192@qq.com"); //上传附件 mimeMessageHelper.addAttachment("小黄人",new File("E:\\pythonTest\\alien_invasion\\images\\icon.jpg")); mailSender.send(mimeMessage); }
测试成功
标签：add idt day pen async xxx python ice asio
原文地址：https://www.cnblogs.com/lyh233/p/12702329.html
