java - 为什么 Spring MVC 以 404 响应并报告 "No mapping found for HTTP request with URI [...] in DispatcherServlet"？

Question

我正在编写一个部署在 Tomcat 上的 Spring MVC 应用程序。见下文minimal, complete, and verifiable example

public class Application extends AbstractAnnotationConfigDispatcherServletInitializer {
    protected Class<?>[] getRootConfigClasses() {
        return new Class<?>[] { };
    }
    protected Class<?>[] getServletConfigClasses() {
        return new Class<?>[] { SpringServletConfig.class };
    }
    protected String[] getServletMappings() {
        return new String[] { "/*" };
    }
}

在哪里 SpringServletConfig是

@Configuration
@ComponentScan("com.example.controllers")
@EnableWebMvc
public class SpringServletConfig {
    @Bean
    public InternalResourceViewResolver resolver() {
        InternalResourceViewResolver vr = new InternalResourceViewResolver();
        vr.setPrefix("/WEB-INF/jsps/");
        vr.setSuffix(".jsp");
        return vr;
    }
}

最后，我有一个 @Controller包装内com.example.controllers

@Controller
public class ExampleController {
    @RequestMapping(path = "/home", method = RequestMethod.GET)
    public String example() {
        return "index";
    }
}

我的应用程序的上下文名称是 Example .当我向

http://localhost:8080/Example/home

应用程序以 HTTP 状态 404 响应并记录以下内容

WARN  o.s.web.servlet.PageNotFound - No mapping found for HTTP request with URI `[/Example/WEB-INF/jsps/index.jsp]` in `DispatcherServlet` with name 'dispatcher'

我在 /WEB-INF/jsps/index.jsp 有一个 JSP 资源我希望 Spring MVC 使用我的 Controller 来处理请求并转发到 JSP，那么为什么它会以 404 响应呢？

这是针对有关此警告消息的问题的规范帖子。

Answer 1

除了之前描述的，我还解决了我的问题:`

@Bean
public InternalResourceViewResolver resolver() {
    InternalResourceViewResolver vr = new InternalResourceViewResolver();
    vr.setPrefix("/WEB-INF/jsps/");
    vr.setSuffix(".jsp");
    return vr;
}

added tomcat-embed-jasper:

<dependency>
       <groupId>org.apache.tomcat.embed</groupId>
        <artifactId>tomcat-embed-jasper</artifactId>
       <scope>provided</scope>
</dependency>

`
来自:JSP file not rendering in Spring Boot web application