前言：
先查看WebMvcConfigurer接口中都定义了哪些内容
public interface WebMvcConfigurer {
default void configurePathMatch(PathMatchConfigurer configurer) {
}
default void configureContentNegotiation(ContentNegotiationConfigurer configurer) {
}
default void configureAsyncSupport(AsyncSupportConfigurer configurer) {
}
default void configureDefaultServletHandling(DefaultServletHandlerConfigurer configurer) {
}
default void addFormatters(FormatterRegistry registry) {
}
default void addInterceptors(InterceptorRegistry registry) {
}
default void addResourceHandlers(ResourceHandlerRegistry registry) {
}
default void addCorsMappings(CorsRegistry registry) {
}
default void addViewControllers(ViewControllerRegistry registry) {
}
default void configureViewResolvers(ViewResolverRegistry registry) {
}
default void addArgumentResolvers(List<HandlerMethodArgumentResolver> resolvers) {
}
default void addReturnValueHandlers(List<HandlerMethodReturnValueHandler> handlers) {
}
default void configureMessageConverters(List<HttpMessageConverter<?>> converters) {
}
default void extendMessageConverters(List<HttpMessageConverter<?>> converters) {
}
default void configureHandlerExceptionResolvers(List<HandlerExceptionResolver> resolvers) {
}
default void extendHandlerExceptionResolvers(List<HandlerExceptionResolver> resolvers) {
}
@Nullable
default Validator getValidator() {
return null;
}
@Nullable
default MessageCodesResolver getMessageCodesResolver() {
return null;
}
}
我们来扩展default void addViewControllers(ViewControllerRegistry registry) { }这个视图映射
1.创建一个配置类，使用@Configuration注解标明这是一个配置类
/**
* @author:抱着鱼睡觉的喵喵
* @date:2020/12/18
* @description:
*/
//使用WebMvcConfigurer接口扩展Spring MVC的功能
@Configuration
public class MyMVcConfig implements WebMvcConfigurer {
@Override
public void addViewControllers(ViewControllerRegistry registry) {
//向浏览器发送/hao请求来到success
registry.addViewController("/hao").setViewName("forward:success");
}
}
这个registry.addViewController("/hao").setViewName(“forward:success”);相当于SpringMVC当中的<mvc:view-controller path="/hao" view-name=“success” >
2.创建Controller类
/**
* @author:抱着鱼睡觉的喵喵
* @date:2020/12/18
* @description:
*/
@Controller
public class HelloController {
@RequestMapping("/success")
public String success(Map<String,Object> map){
map.put("zsh","真棒!");
return "success";
}
}
3.编写success.html
<!DOCTYPE html>
<html lang="en" xmlns:th="http://www.thymeleaf.org">
<head>
<meta charset="UTF-8">
<title>success</title>
</head>
<body>
<!-- th:text 将div里面的内容设置为我们指定的值-->
<div th:text="${zsh}"></div>
</body>
</html>
4.启动主配置类访问http://localhost:8080/hao
