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 {@Resourceprivate 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();}
}