自定义@Enable模块装配

1，创建Configuration类：MyServerConfiguration

代码语言：javascript复制

import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
/**
 * @author lawt
 * @date 2019/6/29
 */
@Configuration
public class MyServerConfiguration {
    @Bean
    public String hello() {
        return "你好，Java后端技术栈";
    }
}

2，创建EnableMyServerConfiguration注解

代码语言：javascript复制

import java.lang.annotation.*;
/**
 * @author lawt
 * @date 2019/6/29
 */
@Target(ElementType.TYPE)
@Retention(RetentionPolicy.RUNTIME)
@Documented
@Import(MyServerConfiguration.class)
public @interface EnableMyServerConfiguration {
}

3，引导类：MyEnableBoostrap

代码语言：javascript复制

import org.springframework.context.annotation.AnnotationConfigApplicationContext;
import org.springframework.context.annotation.Configuration;

/**
 * @author lawt
 * @date 2019/6/29
 */
@EnableMyServerConfiguration
@Configuration
public class MyEnableBoostrap {
    public static void main(String[] args) {
        AnnotationConfigApplicationContext context = new AnnotationConfigApplicationContext();
        context.register(MyEnableBoostrap.class);
        context.refresh();
        String str = context.getBean("hello", String.class);
        System.out.println(str);
        context.close();
    }
}

运行，输出：

注解

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