Spring boot ApplicationContext-Toy模板网

这篇具有很好参考价值的文章主要介绍了Spring boot ApplicationContext。希望对大家有所帮助。如果存在错误或未考虑完全的地方，请大家不吝赐教，您也可以点击"举报违法"按钮提交疑问。

https://www.geeksforgeeks.org/spring-applicationcontext/

AnnotationConfigApplicationContext container

对象直接标注annotation： @Configuration, @Component

ApplicationContext context = new AnnotationConfigApplicationContext(AppConfig.class, AppConfig1.class);

@ComponentScan({"controller","service","repository","pojo"})

@EnableJpaRepositories("repository")

@EntityScan("pojo")

@EnableAutoConfiguration

@Configuration

public class Config {

}

application.properties

spring.main.allow-bean-definition-overriding=true

AnnotationConfigWebApplicationContext

public class MyWebApplicationInitializer implements WebApplicationInitializer {

  public void onStartup(ServletContext container) throws ServletException {
    AnnotationConfigWebApplicationContext context = new AnnotationConfigWebApplicationContext();
    context.register(AppConfig.class);
    context.setServletContext(container);

  }
}

XmlWebApplicationContext

public class MyXmlWebApplicationInitializer implements WebApplicationInitializer {
  public void onStartup(ServletContext container) throws ServletException {
    XmlWebApplicationContext context = new XmlWebApplicationContext();
    context.setConfigLocation("/WEB-INF/spring/applicationContext.xml");
    context.setServletContext(container);
  }
}

FileSystemXmlApplicationContext

String path = "C:/demoProject/src/main/resources/applicationcontext/student-bean-config.xml";

ApplicationContext context = new FileSystemXmlApplicationContext(path);
StudentService stuSvc= context.getBean("studentService", StudentService.class);

ClassPathXmlApplicationContext文章来源地址https://www.toymoban.com/news/detail-491575.html

ApplicationContext context = new ClassPathXmlApplicationContext("applicationcontext/student-bean-config.xml");
StudentService studentService = context.getBean("studentService", StudentService.class);

@Import(Config.class)
@SpringBootApplication
public static void main(String[] args) {

  ApplicationContext context = SpringApplication.run(DemoApplication.class, args);
  Student student = context.getBean(Student.class);
}

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