Spring3.0中进行注解扫描注入

文件结构： dao

@Repository public class PeopleDao { }

Service

@Service public class DemoService { }

1.扫描配置

@ComponentScan(basePackages = "com.example") basePackages 属性指定扫描路径

@Configuration @ComponentScan(basePackages = "com.example") public class Coinfig { }

显示结果：

2.自定义扫描排除或包含

2.1全部排除：

@Configuration @ComponentScan(basePackages = "com.example",useDefaultFilters = false) public class Coinfig { }

2.2 包含：

使用 includeFilters属性

@Configuration @ComponentScan(basePackages = "com.example",useDefaultFilters = false, includeFilters ={ @ComponentScan.Filter(type = FilterType.ANNOTATION,classes = Service.class) } ) public class Coinfig { }

测试类

public class Demo1 { public static void main(String[] args) { AnnotationConfigApplicationContext context = new AnnotationConfigApplicationContext(Coinfig.class); String[] beanDefinitionNames = context.getBeanDefinitionNames(); for (int i = 0; i <beanDefinitionNames.length ; i++) { System.out.println(beanDefinitionNames[i]); } } }

显示结果：

2.3 排除一个包下的特定注解Bean

使用 excludeFilters 属性

@Configuration @ComponentScan(basePackages = "com.example", excludeFilters ={ @ComponentScan.Filter(type = FilterType.ANNOTATION,classes = Service.class) } ) public class Coinfig { }

type = FilterType.ANNOTATION属性默认，可以省略