使用环境覆盖Spring Cloud Config值

使用环境覆盖Spring Cloud Config值

FWIW，我通过编写一个自定义

ApplicationListener

事件来实现此目的，该自定义事件在周期的早期触发，但在Config Service

PropertySource

加载后触发。如果有人感兴趣，我已在此处附加了代码。如果有一种“正式的”
Spring方式可以做到这一点，我仍然很感兴趣，但是可以这样做：

package com.example;import org.springframework.boot.context.event.ApplicationPreparedEvent;import org.springframework.context.ApplicationListener;import org.springframework.core.Ordered;import org.springframework.core.annotation.Order;import org.springframework.core.env.CompositePropertySource;import org.springframework.core.env.ConfigurableEnvironment;import org.springframework.core.env.MutablePropertySources;import org.springframework.core.env.PropertySource;@Order(Ordered.HIGHEST_PRECEDENCE)public class ConfigServicePropertyDeprioritizer        implements ApplicationListener<ApplicationPreparedEvent>{    private static final String CONFIG_SOURCE = "bootstrap";    private static final String PRIORITY_SOURCE = "systemEnvironment";    @Override    public void onApplicationEvent(ApplicationPreparedEvent event)    {        ConfigurableEnvironment environment = event.getApplicationContext()     .getEnvironment();        MutablePropertySources sources = environment.getPropertySources();        PropertySource<?> bootstrap = findSourceToMove(sources);        if (bootstrap != null)        { sources.addAfter(PRIORITY_SOURCE, bootstrap);        }    }    private PropertySource<?> findSourceToMove(MutablePropertySources sources)    {        boolean foundPrioritySource = false;        for (PropertySource<?> source : sources)        { if (PRIORITY_SOURCE.equals(source.getName())) {     foundPrioritySource = true;     continue; } if (CONFIG_SOURCE.equals(source.getName())) {     // during bootstrapping, the "bootstrap" PropertySource     // is a simple MapPropertySource, which we don't want to     // use, as it's eventually removed. The real values will      // be in a CompositePropertySource     if (source instanceof CompositePropertySource)     {         return foundPrioritySource ? null : source;     } }        }        return null;    }}