Spring 启动：控制器 - 404 未找到

Question

我有这个网络应用程序

这是控制器：

@Controller
@RequestMapping(value = "/update")
public class Update{


    @RequestMapping(value = "/tracking_number", method = RequestMethod.POST)
    public ResponseEntity<String> updateTrackingNumber(@RequestHeader(value = "order_id")String orderId,
                                                       @RequestHeader(value = "tracking_number")String trackingNumber,
                                                       HttpSession httpSession){

        //url: localhost:8080/update/tracking_number
        //this one works perfectly

    }

    @RequestMapping(value = "/order_products", method = RequestMethod.POST)
    public ResponseEntity<String> updateOrderProducts(){

        return ResponseEntity.ok().body("i hope to see this text");

    }

}

SpringBoot应用程序：

@SpringBootApplication
public class MainCore extends SpringBootServletInitializer{

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

}

WebApplicationInitializer:

public class AppInitializer implements WebApplicationInitializer{

    @Override
    public void onStartup(ServletContext container) throws ServletException{

        AnnotationConfigWebApplicationContext context = new AnnotationConfigWebApplicationContext();
        context.scan("com.web.foo");
        container.addListener(new ContextLoaderListener(context));

        ServletRegistration.Dynamic dispatcher = container.addServlet("mvc", new DispatcherServlet(context));
        dispatcher.setLoadOnStartup(1);
        dispatcher.addMapping("/");

    }

}

WebMvcConfigurer:

@EnableWebMvc
@Configuration
@ComponentScan(basePackages = "com.web.foo.controller")
public class WebConfig implements WebMvcConfigurer{

    @Bean
    public ViewResolver internalResourceViewResolver() {
        InternalResourceViewResolver bean = new InternalResourceViewResolver();
        bean.setViewClass(JstlView.class);
        bean.setPrefix("/WEB-INF/jsp/");
        bean.setSuffix(".jsp");
        return bean;
    }

    @Override
    public void addResourceHandlers(ResourceHandlerRegistry registry) {
        registry.addResourceHandler("/resources/**")
                .addResourceLocations("/resources/");
    }

}

结构：

com
 - web
 - - foo
 - - - controller
 - - - - Update.java
 - - - MainCore.java
 - - - AppInitializer.java
 - - - WebConfig.java

当我访问 localhost:8080/update/tracking_number 时，它运行完美。

但是当我访问 localhost:8080/update/order_products 它不再有效并给出响应：

{
    "timestamp": 1618404297125,
    "status": 404,
    "error": "Not Found",
    "message": "No message available",
    "path": "/update/order_products"
}

Answer 1

你能检查一下请求是否有 Content-Type header。同样在@RequestMapping 中添加 consumes = "application/text" 或 "application/json" 任何相关的内容。

Answer 2

尝试为 updateOrderProducts 添加 @ResponseBody 方法

Answer 3

该项目是运行直接来自 Intellij IDEA。

因此，就我而言，解决方案是 Invalidate caches。

Spring 启动：控制器 - 404 未找到

Spring Boot: Controller - 404 Not Found

java

spring

spring-mvc

spring-boot