Springboot配置suffix指定mvc视图的后缀方法

spring:
#配置MVC视图后缀
  mvc:
    view:
      suffix: ".html"

@Controller
public class demoController {
    @GetMapping("/a")
    public String demo(){
        return "welcome";
    }

package com.ias.oil.client.schedule; 
import com.ias.oil.model.OILService;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.boot.WEB.servlet.ServletReGIStrationBean;
import org.springframework.cloud.client.discovery.EnableDiscoveryClient;
import org.springframework.cloud.netflix.feign.EnableFeignClients;
import org.springframework.context.annotation.Bean;
import org.springframework.web.servlet.DispatcherServlet;
 
@EnableDiscoveryClient
@EnableFeignClients({OILService.PACKAGE_FOR_SERVICE_SCHEDULE})
@SpringBootApplication
public class OILScheduleClientApplication {
    public static void main(String[] args) {
        SpringApplication.run(OILScheduleClientApplication.class, args);
    }
 
    
    @Bean
    public ServletRegistrationBean servletRegistrationBean(DispatcherServlet dispatcherServlet) {
        ServletRegistrationBean bean = new ServletRegistrationBean(dispatcherServlet);
        bean.addUrlMappings("*.action");
        return bean;
    }
}

    @Bean
    public ServletRegistrationBean servletRegistrationBean(DispatcherServlet dispatcherServlet) {
        ServletRegistrationBean bean = new ServletRegistrationBean(dispatcherServlet);
        bean.addUrlMappings("*.action");
        return bean;
    }

spring:
  mvc:
      ##设置匹配.action后缀的请求的配置
    pathmatch:
      use-suffix-pattern: false
      use-registered-suffix-pattern: true
      contentneGotiation:
        favor-path-extension: false