SpringMVC bean实现加载控制方法详解

@Configuration
// 使 Spring 只扫描 dao 与 service 包
@ComponentScan({"com.mzz.dao", "com.mzz.service"})
public class SprinGConfig {
}

@Configuration
@ComponentScan(value = "com.mzz",
    excludeFilters = @ComponentScan.Filter(
            type = FilterType.ANNOTATION,   // 按照 注解 来进行过滤
            classes = {Controller.class}    // 过滤所有注解了 @Controller 的 bean
    )
)
public class SpringConfig {
}

@Configuration
@ComponentScan(value = "com.mzz",
    excludeFilters = @ComponentScan.Filter({Controller.class})
)
public class SpringConfig {
}

@Configuration
@ComponentScan(value = "com.mzz",
        excludeFilters = @ComponentScan.Filter({Controller.class, ComponentScan.class})
)
public class SpringConfig {
}

public class ServletContainerInitConfig extends AbstractDispatcherServletInitializer {
    // 加载 springMVC 容器配置
    @Override
    protected WEBApplicationContext createServletApplicationContext() {
        AnnotationConfigWebApplicationContext ctx = new AnnotationConfigWebApplicationContext();
        ctx.reGISter(SpringMvcConfig.class);
        return ctx;
    }
    @Override
    protected String[] getServletMappings() {
        return new String[]{"/"};
    }
    // 加载 spring 容器配置
    @Override
    protected WebApplicationContext createRootApplicationContext() {
        AnnotationConfigWebApplicationContext ctx = new AnnotationConfigWebApplicationContext();
        ctx.register(SpringConfig.class);
        return ctx;
    }
}

public class ServletContainerInitConfig extends AbstractAnnotationConfigDispatcherServletInitializer {
    @Override
    protected Class<?>[] getRootConfigClasses() {
        return new Class[]{SpringConfig.class};
    }
    // 加载 springMVC 容器配置
    @Override
    protected Class<?>[] getServletConfigClasses() {
        return new Class[]{SpringMvcConfig.class};
    }
    @Override
    protected String[] getServletMappings() {
        return new String[]{"/"};
    }
}