spring boot应用内部实现应用自身重启的两种方式

方式一：通过重新创建上下文进行重启

实现：

spring boot启动类

@SpringBootApplication
public class Application {

    public static ConfigurableApplicationContext context;

    public static void main(String[] args) {
        context = SpringApplication.run(Application.class);
    }

}

@Slf4j
@RestController
@RequestMapping("/restart")
public class RestartController {

    private static void restart() {
        ApplicationArguments args = Application.context.getBean(ApplicationArguments.class);
        Thread thread = new Thread(() -> {
            log.info("springboot restart...");
            Application.context.close();
            Application.context = SpringApplication.run(Application.class, args.getSourceArgs());
        });
        // 设置为用户线程，不是守护线程
        thread.setDaemon(false);
        thread.start();
    }
}

<!--重启-->
<dependency>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-actuator</artifactId>
    <version>2.2.2.RELEASE</version>
</dependency>
<dependency>
    <groupId>org.springframework.cloud</groupId>
    <artifactId>spring-cloud-starter</artifactId>
    <version>2.2.2.RELEASE</version>
</dependency>

# 重启management:
  endpoint:
    restart:
      enabled: true # 启用内置重启端点

@Resource
RestartEndpoint restartEndpoint;
/**
 * 调用该方法即可完成应用重启
 */
public void restartApplication() {
    restartEndpoint.restart();
}