83 lines
2.5 KiB
Markdown
83 lines
2.5 KiB
Markdown
## 方式1: 实现ApplicationContextInitializer接口
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实现接口后，将此类注入到Spring容器中，有两种方式。当然也可以直接调用静态方法
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第一种： 在此类上加`@Component`注解
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第二种：在 `resources/META-INF/spring.factories`文件中添加以下配置: org.springframework.context.ApplicationContextInitializer=CustomerApplicationContextInitializer的路径
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实现ApplicationContextInitializer的源码示例:
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```java
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public class CustomApplicationContextInitializer implements ApplicationContextInitializer {
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@Override
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public void initialize(ConfigurableApplicationContext applicationContext) {
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SpringBeanUtils.setApplicationContext(applicationContext);
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}
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}
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```
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## 方式2. 实现ApplicationListener接口
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实现接口后，将此类注入到Spring容器中，有两种方式。当然也可以直接调用静态方法
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第一种： 在此类上加`@Component`注解
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第二种：在 `resources/META-INF/spring.factories`文件中添加以下配置: org.springframework.context.ApplicationContextInitializer=CustomerApplicationListener的路径
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实现ApplicationListener的源码示例:
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```java
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public class CustomApplicationListener implements ApplicationListener<ApplicationContextEvent> {
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@Override
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public void onApplicationEvent(ApplicationContextEvent event) {
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SpringBeanUtils.setApplicationContext(event.getApplicationContext());
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}
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}
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```
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方式3. 在启动类main方法中设置
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```java
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@SpringBootApplication
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@EnableSwagger2
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public class Application {
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public static void main(String[] args) {
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ConfigurableApplicationContext applicationContext = SpringApplication.run(WangMikeSpringApplication.class, args);
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SpringBeanUtils.setApplicationContext(applicationContext);
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}
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}
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```
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方式4. 实现ApplicationContextAware接口
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```java
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@Component
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public class SpringBeanUtils implements ApplicationContextAware {
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private static ApplicationContext applicationContext;
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public void setApplicationContext(ApplicationContext applicationContext){
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SpringBeanUtils.applicationContext = applicationContext;
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}
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public static ApplicationContext getApplicationContext(
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return applicationContext;
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}
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}
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```
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方式5. 直接通过@Resource注解注入
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```java
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@Component
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@Order(value = 1)
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@Slf4j
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public class AppStartRunner implements org.springframework.boot.ApplicationRunner {
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protected static Logger logger = LoggerFactory.getLogger(AppStartRunner.class);
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@Resource
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ApplicationContext applicationContext;
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}
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``` |