web.xml

  <!-- spring读取配置文件 -->
  <context-param>
        <param-name>contextConfigLocation</param-name>
        <param-value>classpath*:config/springAnnotation-core.xml</param-value>
  </context-param>

   <!--spring监听  -->
  <listener>
     <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
  </listener>

<!-- 配置springMVC -->
  <servlet>
    <servlet-name>springMVC</servlet-name>
    <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
        <init-param>
           <!-- contextConfigLocation 是固定的 -->
            <param-name>contextConfigLocation</param-name>
                  <!-- 配置读取路径-->
            <param-value>classpath*:config/springAnnotation-servlet.xml</param-value>
        </init-param>
  </servlet>

  <servlet-mapping>
    <servlet-name>springMVC</servlet-name>
        <!-- 配置拦截规则-->
    <url-pattern>/</url-pattern>
  </servlet-mapping>

springAnnotation-core.xml

<beans>
<!--  配置相应的bean ,配置完就自动实例化,实例化对象可以通过注解调用,调用规则是id-->
    <bean id="UserManager" class="com.tgb.web.controller.annotation.UserManager"></bean>
    <!--  或者通过以下的方法也可以,就是将bean写到一个xml文件中,这里调用那个文件,如下所示-->
    <!--<import resource="classpath*:com/tgb/web/controller/annotation/daoBean.xml"/>-->
</beans>

springAnnotation-servlet.xml

     <!-- 注解扫描包 -->
    <context:component-scan base-package="com.tgb.web.controller.annotation" />
    <!-- 开启注解 -->

    <mvc:annotation-driven/>
    <!--视图解析器-->
    <bean id="viewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver">
        <property name="prefix" value="/"></property>
        <property name="suffix" value=".jsp"></property>
    </bean>

controller

@Controller
public class User3Controller {

    //相当于IUser UserManager=new UserManager();
    //IUser是个接口,UserManager是IUser接口的实现类,UserManager已经在配置文件配置bean了
    //注解引入实例化对象
    @Resource(name="UserManager")
    private IUser UserManager;

    @RequestMapping("/user/login")
    public String get(){
        System.out.println(UserManager.login());
        return "/success";
    }
}
posted on 2017-04-13 17:17  2637282556  阅读(119)  评论(0编辑  收藏  举报