以编程方式关闭 Spring Boot 应用程序

问题描述

如何以编程方式关闭Spring Boot应用程序而不终止虚拟机?

在其他作品中，与

new SpringApplication(Main.class).run(args);

推荐答案

关闭一个 SpringApplication 基本上意味着关闭底层的ApplicationContext.SpringApplication#run(String...) 方法为您提供 ApplicationContext 作为 ConfigurableApplicationContext.然后你可以 close() 自己动手.

Closing a SpringApplication basically means closing the underlying ApplicationContext. The SpringApplication#run(String...) method gives you that ApplicationContext as a ConfigurableApplicationContext. You can then close() it yourself.

例如

@SpringBootApplication
public class Example {
    public static void main(String[] args) {
        ConfigurableApplicationContext ctx = SpringApplication.run(Example.class, args);
        // ...determine it's time to shut down...
        ctx.close();
    }
}

或者，您可以使用 static SpringApplication.exit(ApplicationContext, ExitCodeGenerator...)a> helper 方法来为你做这件事.例如，

Alternatively, you can use the static SpringApplication.exit(ApplicationContext, ExitCodeGenerator...) helper method to do it for you. For example,

@SpringBootApplication
public class Example {
    public static void main(String[] args) {
        ConfigurableApplicationContext ctx = SpringApplication.run(Example.class, args);
        // ...determine it's time to stop...
        int exitCode = SpringApplication.exit(ctx, new ExitCodeGenerator() {
            @Override
            public int getExitCode() {
                // no errors
                return 0;
            }
        });

        // or shortened to
        // int exitCode = SpringApplication.exit(ctx, () -> 0);

        System.exit(exitCode);
    }
}

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