SpringBoot自动重启

方法一：使用SpringCloud RestartEndpoint

• 使用的jar

    implementation 'org.springframework.boot:spring-boot-starter-actuator'
    implementation 'org.springframework.cloud:spring-cloud-starter-config:3.0.7'

• 在application.properties添加配置

management.endpoint.restart.enabled=true
spring.cloud.config.enabled=false

• 重启方法的Controller

import javax.annotation.Resource;

import org.springframework.cloud.context.restart.RestartEndpoint;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

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

    @Resource
    private RestartEndpoint restartEndpoint;

    @GetMapping("/restartApplication")
    public void restartApplication() {
        restartEndpoint.restart();
    }

}

方法二：重新创建ApplicationContext上下文

• 启动类

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.context.ConfigurableApplicationContext;

@SpringBootApplication
public class Application {

    public static ConfigurableApplicationContext context;

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

}

• 重启方法的Controller

import org.springframework.boot.ApplicationArguments;
import org.springframework.boot.SpringApplication;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

import lombok.extern.slf4j.Slf4j;

@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();
    }
}