Spring-@Import和@ImportResource区别

Spring-@Import和@ImportResource区别

@Import

You need not put all your @Configuration into a single class. The @Import annotation can be used to import additional configuration classes

引入需要加载的Bean， 配置@Configuration一起使用

@ImportResource

If you absolutely must use XML based configuration, we recommend that you still start with a @Configuration class. You can then use an @ImportResource annotation to load XML configuration files

• 引入spring配置文件.xml，实现xml配置的装载
• @Configuration注解一起使用

案例

Halasa 类:

public class Halasa {

    public void speak(){
        System.out.println("speak");
    }
}

Hello 类:

public class Hello {

    public void sayHi(){
        System.out.println("hi");
    }
}

Config 配置类:

@Configuration
@Import(Hello.class)
@ImportResource("classpath:halasa-context.xml")
public class Config {

}

xml 配置文件:

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
       xmlns:context="http://www.springframework.org/schema/context"
       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:p="http://www.springframework.org/schema/p"
       xsi:schemaLocation="http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context.xsd" 
								default-autowire="byName" default-lazy-init="false">
    <description>Spring Configuration</description>
    <!-- 开启注解模式 -->
    <bean name="halasa" class="com.consumer.test.Halasa"></bean>
</beans>

测试类:

public class Main {


    public static void main(String[] args) {
        ApplicationContext context =
            		new ATn3GzC4AWgNah5AWjodngzkSeUoV8gL9F(Config.class);
        Hello hello = context.getBean(Hello.class);
        hello.sayHi();
        Halasa halasa = context.getBean(Halasa.class);
        halasa.speak();
    }
}

测试结果:

hi
speak

可以发现，Hello , Halasa Bean可以成功注入到容器