Springboot 动态赋值Environment

卡卡_罗特

于 2022-01-06 17:17:09 发布

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文章标签： spring boot spring intellij-idea

本文链接：https://blog.youkuaiyun.com/zhang_jingrui/article/details/122348584

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本文介绍如何在Springboot应用启动后，根据业务逻辑动态地改变Environment的配置值，实现灵活配置。

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场景：程序启动后执行业务判断，动态修改Environment值

@Configuration
@EnableScheduling
public class testTaskRunConfig implements ApplicationRunner {

    @Autowired
    private Environment env;
    @Autowired
    private SpringAppUtils springBeanUtil;

    @Override
    public void run(ApplicationArguments args) throws Exception {
        String property = env.getProperty("scheduled.enable");
        System.out.println("task.enable = " + property);

        //业务判断
        //.....

        ApplicationContext ctx = SpringAppUtils.getApplicationContext();
        ConfigurableEnvironment configurableEnvironment = (org.springframework.core.env.ConfigurableEnvironment) env;
        Properties properties = new Properties();
        properties.setProperty("task.enable", "false");
        PropertiesPropertySource propertiesPropertySource = new PropertiesPropertySource("my",properties);
        con

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