详解Spring Boot加载properties和yml配置文件

package com.example.config;import org.springframework.beans.factory.annotation.Autowired;import org.springframework.context.annotation.Configuration;import org.springframework.context.annotation.PropertySource;import org.springframework.core.env.Environment;/** * @author: GrandKai * @create: 2016-09-01 11:24 */@Configuration@PropertySource(ignoreResourceNotFound = true, value = {"classpath:/config/email.properties","classpath:/config/email.yml"}, name = "email")public class Config {}

AnnotationConfigEmbeddedWebApplicationContext context = (AnnotationConfigEmbeddedWebApplicationContext) app.run("参数1");context.register(Config.class);

Environment env = context.getEnvironment();System.out.println(env.getProperty("address"));

server:  address: 127.0.0.1

public class Main {  public static void main(String... args) {    //initialize the command line parsing stuff    OptionParser parser = new OptionParser();    parser.accepts("greeting").withRequiredArg();    OptionSet options = parser.parse(args);    //create the actual Spring PropertySource    PropertySource<?> ps = new JOptCommandLinePropertySource(options);    //setup the Spring context    AnnotationConfigApplicationContext ctx = new AnnotationConfigApplicationContext();    ctx.getEnvironment().getPropertySources().addLast(ps);     //register the property source with the environment    ctx.register(Greeter.class);    ctx.refresh();    Greeter greeter = ctx.getBean(Greeter.class);    greeter.sayGreeting();  }}@Componentclass Greeter {  @Inject private Environment env;  //the following would also work  //@Value("${greeting}")  //private String greeting;      /**   * Print out the 'greeting' property if it exists, and otherwise, "Welcome!".   */  public void sayGreeting() {    System.out.println(env.getProperty("greeting", "Welcome!"));  }}public static void main(String [] args) {  SimpleCommandLinePropertySource ps = new SimpleCommandLinePropertySource(args);  @SuppressWarnings("resource")  AnnotationConfigApplicationContext ctx = new AnnotationConfigApplicationContext();  ctx.getEnvironment().getPropertySources().addFirst(ps);  ctx.register(ApplicationConfig.class);  ctx.refresh();}@Configuration@EnableScheduling@ComponentScan("com.mycompany.package")@PropertySource(    value = {"classpath:/application.properties", "file:${config.location}"},    ignoreResourceNotFound = true  )class ApplicationConfig {  @Bean  public static PropertySourcesPlaceholderConfigurer propertyConfigurer() {    return new PropertySourcesPlaceholderConfigurer();  }}@Componentclass MyComponent {  @Value("${my.property.data}")  private String myPropertyData;  @Scheduled(fixedDelayString = "${schedule.delay.period}")  public void run() {     :  }}