JavaSpringBoot:Servlet[dispatcherServlet]的Servlet.service（）引发异常

我正试图编写一个Spring引导应用程序，为我的AngularJS应用程序提供一个文件“index.html”。我有以下课程：

Application.java

@SpringBootApplication
public class Application
        extends SpringBootServletInitializer
{
    @Override
    protected SpringApplicationBuilder configure(SpringApplicationBuilder application)
    {
        return application.sources(Application.class);
    }

    public static void main(String[] args)
    {
        SpringApplication.run(Application.class, args);
    }
}

@Controller
public class BaseController
{
    // Map all urls to this method aside from ones starting with api
    @RequestMapping(value = "/**")
    public String getIndexHtml()
    {
        System.out.println("hi me");
        return "index";
    }
}

@Configuration
public class MvcConfiguration
        extends WebMvcConfigurerAdapter
{
    @Bean
    public ViewResolver getViewResolver()
    {
        InternalResourceViewResolver resolver = new InternalResourceViewResolver();
        resolver.setPrefix("/WEB-INF/");
        resolver.setSuffix(".html");
        return resolver;
    }
}

BaseController.java

@SpringBootApplication
public class Application
        extends SpringBootServletInitializer
{
    @Override
    protected SpringApplicationBuilder configure(SpringApplicationBuilder application)
    {
        return application.sources(Application.class);
    }

    public static void main(String[] args)
    {
        SpringApplication.run(Application.class, args);
    }
}

@Controller
public class BaseController
{
    // Map all urls to this method aside from ones starting with api
    @RequestMapping(value = "/**")
    public String getIndexHtml()
    {
        System.out.println("hi me");
        return "index";
    }
}

@Configuration
public class MvcConfiguration
        extends WebMvcConfigurerAdapter
{
    @Bean
    public ViewResolver getViewResolver()
    {
        InternalResourceViewResolver resolver = new InternalResourceViewResolver();
        resolver.setPrefix("/WEB-INF/");
        resolver.setSuffix(".html");
        return resolver;
    }
}

MvcConfiguration.java

@SpringBootApplication
public class Application
        extends SpringBootServletInitializer
{
    @Override
    protected SpringApplicationBuilder configure(SpringApplicationBuilder application)
    {
        return application.sources(Application.class);
    }

    public static void main(String[] args)
    {
        SpringApplication.run(Application.class, args);
    }
}

@Controller
public class BaseController
{
    // Map all urls to this method aside from ones starting with api
    @RequestMapping(value = "/**")
    public String getIndexHtml()
    {
        System.out.println("hi me");
        return "index";
    }
}

@Configuration
public class MvcConfiguration
        extends WebMvcConfigurerAdapter
{
    @Bean
    public ViewResolver getViewResolver()
    {
        InternalResourceViewResolver resolver = new InternalResourceViewResolver();
        resolver.setPrefix("/WEB-INF/");
        resolver.setSuffix(".html");
        return resolver;
    }
}

以及以下目录结构：

src └── main    ├── java    │   └── com    │   └── myangularapp    │   ├── Application.java    │   ├── config    │   │   └── MvcConfiguration.java    │   └── controllers    │   └── BaseController.java    └── webapp    └── WEB-INF       └── index.html 最终会变成：

at javax.servlet.http.HttpServletRequestWrapper.getSession(HttpServletRequestWrapper.java:231) ~[servlet-api.jar:na]
at org.apache.catalina.core.ApplicationHttpRequest.getSession(ApplicationHttpRequest.java:594) ~[catalina.jar:8.5.15]
at org.springframework.web.util.WebUtils.getSessionId(WebUtils.java:288) ~[spring-web-4.3.7.RELEASE.jar:4.3.7.RELEASE]
at org.springframework.web.servlet.FrameworkServlet.publishRequestHandledEvent(FrameworkServlet.java:1077) ~[spring-webmvc-4.3.7.RELEASE.jar:4.3.7.RELEASE]
at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:1005) ~[spring-webmvc-4.3.7.RELEASE.jar:4.3.7.RELEASE]
at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:861) ~[spring-webmvc-4.3.7.RELEASE.jar:4.3.7.RELEASE]
at javax.servlet.http.HttpServlet.service(HttpServlet.java:635) ~[servlet-api.jar:na]
at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:846) ~[spring-webmvc-4.3.7.RELEASE.jar:4.3.7.RELEASE]
at javax.servlet.http.HttpServlet.service(HttpServlet.java:742) ~[servlet-api.jar:na]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:231) ~[catalina.jar:8.5.15]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[catalina.jar:8.5.15]
at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52) ~[tomcat-websocket.jar:8.5.15]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) ~[catalina.jar:8.5.15]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[catalina.jar:8.5.15]
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:101) ~[spring-web-4.3.7.RELEASE.jar:4.3.7.RELEASE]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) ~[catalina.jar:8.5.15]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[catalina.jar:8.5.15]
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:101) ~[spring-web-4.3.7.RELEASE.jar:4.3.7.RELEASE]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) ~[catalina.jar:8.5.15]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[catalina.jar:8.5.15]
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:101) ~[spring-web-4.3.7.RELEASE.jar:4.3.7.RELEASE]

有人知道我做错了什么吗

------------------------更新------------------------

在此之后，我的MVC配置类中没有

@EnableWebMvc

。我把它加进去，视图就解决了，一切都开始工作了