<!--前端控制器-->
  <servlet>
    <servlet-name>springMVC</servlet-name>
    <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
    <!--加载springMVC的配置文件-->
    <init-param>
      <param-name>contextConfigLocation</param-name>
      <param-value>classpath:springmvc-servlet.xml</param-value>
    </init-param>
    <!--加载的级别 数字越小级别越大-->
    <load-on-startup>1</load-on-startup>
  </servlet>
  
  <!--拦截的路径-->
  <servlet-mapping>
    <servlet-name>springMVC</servlet-name>
    <!--
    /与/*的区别
    /不会拦截.jsp文件
    /*会拦截.jsp文件和url路径
    -->
    <url-pattern>/</url-pattern>
  </servlet-mapping>

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
           xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
           xsi:schemaLocation="http://www.springframework.org/schema/beans
       http://www.springframework.org/schema/beans/spring-beans.xsd">
    <!--添加 处理映射器-->
    <bean class="org.springframework.web.servlet.handler.BeanNameUrlHandlerMapping"/>
    <!--添加 处理器适配器-->
    <bean class="org.springframework.web.servlet.mvc.SimpleControllerHandlerAdapter"/>

    <!--视图解析器:DispatcherServlet给他的ModelAndView-->
    <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver" id="InternalResourceViewResolver">
        <!--前缀-->
        <property name="prefix" value="/WEB-INF/jsp/"/>
        <!--后缀-->
        <property name="suffix" value=".jsp"/>
    </bean>
    
    <!--Handler-->
    <bean id="/xxx" class="xx.xx.xx.controller.xx"/>
</beans>

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
       xmlns:context="http://www.springframework.org/schema/context"
       xmlns:mvc="http://www.springframework.org/schema/mvc"
       xsi:schemaLocation="http://www.springframework.org/schema/beans
       http://www.springframework.org/schema/beans/spring-beans.xsd
       http://www.springframework.org/schema/context
       https://www.springframework.org/schema/context/spring-context.xsd
       http://www.springframework.org/schema/mvc
       https://www.springframework.org/schema/mvc/spring-mvc.xsd">

    <!--开启扫描 因为springmvc是负责controller层的  所以只扫描controller就好了-->
    <context:component-scan base-package="xx.xx.controller"/>

    <!--前端控制器，哪些静态资源不拦截 比如.css .js-->
    <mvc:default-servlet-handler/>

    <!--开启springMVC框架注解的支持-->
    <!--
       支持mvc注解驱动
       在spring中一般采用@RequestMapping注解来完成映射关系
       要想使@RequestMapping注解生效
       必须向上下文中注册DefaultAnnotationHandlerMapping
       和一个AnnotationMethodHandlerAdapter实例
       这两个实例分别在类级别和方法级别处理。
       而annotation-driven配置帮助我们自动完成上述两个实例的注入。
    -->
    <mvc:annotation-driven/>

    <!--视图解析器:DispatcherServlet给他的ModelAndView-->
    <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver" id="InternalResourceViewResolver">
        <!--前缀-->
        <property name="prefix" value="/WEB-INF/jsp/"/>
        <!--后缀-->
        <property name="suffix" value=".jsp"/>
    </bean>

    <!--配置文件解析器 要求id值必须为multipartResolver-->
    <bean class="org.springframework.web.multipart.commons.CommonsMultipartResolver" id="multipartResolver">
        <!--10*1024*1024 10M-->
        <property value="10485760" name="maxUploadSize"/>
    </bean>

    <!--拦截器-->
    <mvc:interceptors>
        <mvc:interceptor>
            <mvc:mapping path="/admin/**"/>
            <bean class="org.ccunix.coffee.interceptor.AdminLoginInterceptor"/>
        </mvc:interceptor>
    </mvc:interceptors>
</beans>

@Controller
@RequestMapping("/user")
public class RestFulController {
    @RequestMapping("/add")
    public String add( Integer a,  Integer b, Model model){
        int result = a + b;
        model.addAttribute("msg","结果为"+result);
        System.out.println(result);
        return "add";
    }
}

@RequestMapping(value = "/mult/{a}/{b}",method = RequestMethod.GET)
    public String mult( @PathVariable("a") Integer a,  @PathVariable("b") Integer b, Model model){
        int result = a + b;
        model.addAttribute("msg","结果为"+result);
        System.out.println(result);
        return "add";
    }