扩展和全面接管SpringMVC

1、扩展SpringMVC

创建springmvc.xml文件

<?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: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/mvc http://www.springframework.org/schema/mvc/spring-mvc.xsd">

    <mvc:view-controller path="/hello" view-name="success"/>
    <mvc:interceptors>
        <mvc:interceptor>
            <mvc:mapping path="/hello"/>
            <bean></bean>
        </mvc:interceptor>
    </mvc:interceptors>
    <mvc:default-servlet-handler/>
</beans>

2、全面接管SpringMVC

@EnableWebMvc // 使用WebMvcConfigurer可以来扩展Spring的功能
@Configuration
public class MyMvcConfig implements WebMvcConfigurer { //使用WebMvcConfigurer扩展SpringMVC的功能

    /**
     * 浏览器发送/sangyu请求来到success
     * @param registry
     */
    public void addViewControllers(ViewControllerRegistry registry) {
        /// 浏览器发送/sangyu请求来到success页面
        registry.addViewController("/sangyu").setViewName("success");
    }
}