在xml中定义Spring @PropertySource，并在环境中使用它

AFAIK，无法通过纯XML做到这一点。无论如何，这是我今天早上做的一些代码：

一，测试：

public class EnvironmentTests {    @Test    public void addPropertiesToEnvironmentTest() {        ApplicationContext context = new ClassPathXmlApplicationContext(     "testContext.xml");        Environment environment = context.getEnvironment();        String world = environment.getProperty("hello");        assertNotNull(world);        assertEquals("world", world);        System.out.println("Hello " + world);    }}

然后上课：

public class PropertySourcesAdderBean implements InitializingBean,        ApplicationContextAware {    private Properties properties;    private ApplicationContext applicationContext;    public PropertySourcesAdderBean() {    }    public void afterPropertiesSet() throws Exception {    PropertiesPropertySource propertySource = new PropertiesPropertySource( "helloWorldProps", this.properties);    ConfigurableEnvironment environment = (ConfigurableEnvironment) this.applicationContext .getEnvironment();    environment.getPropertySources().addFirst(propertySource);    }    public Properties getProperties() {        return properties;    }    public void setProperties(Properties properties) {        this.properties = properties;    }    public void setApplicationContext(ApplicationContext applicationContext) throws BeansException {        this.applicationContext = applicationContext;    }}

和testContext.xml：

<?xml version="1.0" encoding="UTF-8"?><beans ...>    <util:properties id="props" location="classpath:props.properties" />    <bean id="propertySources" >        <property name="properties" ref="props" />    </bean></beans>

和props.properties文件：

hello=world

这是很简单，只需使用一个

ApplicationContextAware

ConfigurableEnvironment

(Web)ApplicationContext

PropertiesPropertySource

MutablePropertySources