How to inject Bean using ApplicationContext in java-javaTutorial-php.cn

How to inject Bean using ApplicationContext in java

王林

Release： 2023-05-03 16:58:15

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Use ApplicationContext to inject Bean

It is springanother core interface or container after BeanFactory, allowing the container to create and obtain through the application context , management beans. Provides a central interface for configuration to applications. This is read-only while the application is running, but can be reloaded if the implementation supports this.

The first step: modify the project startup class and obtain the ApplicationContext

@SpringBootApplication
public class TestgroovyApplication {

    //获取应用程序上下文环境
    private static ApplicationContext applicationContext;

    public static void main(String[] args) {
        applicationContext = SpringApplication.run(TestgroovyApplication.class, args);
    }

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The second step: modify the .groovy file created in the resources directory

/**
     * .
     * Groovy获取Bean
     */
    @Override
    void run() {
        log.info("Groovy开始执行,当前类{}", this.getClass())
        ScriptService service = TestgroovyApplication.applicationContext.getBean(ScriptService.class)
        log.info("ApplicationContext获取对象[{}]", service.class)
        List<Script> item = service.findAll()//执行bean中数据查询方法
        for (Script s : item) {
            log.info("创建人:[{}],规则id:[{}],名称:[{}]", s.getCreatePerson(), s.getRuleId(), s.getScriptName())
        }
        log.info("Groovy结束执行,当前类{}", this.getClass())
    }

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Script running result:

How to inject Bean using ApplicationContext in java

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