예제 4-81 Environment의 간단한 예제 코드([[environment]] EnvironmentSampleLast.java)

package com.apress.prospring5.ch4;

import java.util.HashMap;
import java.util.Map;

import org.springframework.context.support.GenericXmlApplicationContext;
import org.springframework.core.env.ConfigurableEnvironment;
import org.springframework.core.env.MapPropertySource;
import org.springframework.core.env.MutablePropertySources;

public class EnvironmentSampleLast {
    public static void main(String... args) {
        GenericXmlApplicationContext ctx = new GenericXmlApplicationContext();
        ctx.refresh();

        ConfigurableEnvironment env = ctx.getEnvironment();
        MutablePropertySources propertySources = env.getPropertySources();

        Map<String, Object> appMap = new HashMap<>();
        appMap.put("application.home", "application_home");

        propertySources.addLast(new MapPropertySource("prospring5_MAP", appMap));

        System.out.println("user.home: " + System.getProperty("user.home"));
        System.out.println("JAVA_HOME: " + System.getenv("JAVA_HOME"));

        System.out.println("user.home: " + env.getProperty("user.home"));
        System.out.println("JAVA_HOME: " + env.getProperty("JAVA_HOME"));
        System.out.println("application.home: " + env.getProperty("application.home"));

        ctx.close();
    }
}