Spring Boot Controller not mapping random methods-CodePudding

I have problem with @RestController and Spring Boot application

@RestController
@RequestMapping("/download")
public class CsvExportController {

    private final ZipFileService zipFileService;

    public CsvExportController(ZipFileService zipFileService) {
        this.zipFileService = zipFileService;
    }

    @GetMapping("/export")
    public void getFile(HttpServletResponse response) {
        DateFormat dateFormatter = new SimpleDateFormat("yyyy-MM-dd_HH:mm:ss");
        String currentDateTime = dateFormatter.format(new Date());

        String headerKey = "Content-Disposition";
        String headerValue = "attachment; filename=name-"   currentDateTime   ".zip";
        response.setContentType("application/zip");
        response.setHeader(headerKey, headerValue);

        zipFileService.export(response);
    }

    @GetMapping("/test")
    public String test() {
       return "Hello";
    }
}

I have problem with GET mapping

2022-01-13 22:15:48.196  WARN 11944 --- [nio-8080-exec-4] o.s.web.servlet.PageNotFound             : No mapping for GET /download/test
2022-01-13 22:15:48.266  WARN 11944 --- [nio-8080-exec-5] o.s.web.servlet.PageNotFound             : No mapping for GET /favicon.ico

First endpoint @GetMapping("/export") works and second doesn;t works. In the latter endpoint, no matter what I return. Here I tested "Hello" but it doesn't work anyway. Interestingly, when I change the path for the first "export" to anything else, it also stops working Any ideas ?

@Configuration
@EnableWebMvc
public class AppConfig implements WebMvcConfigurer {

    @Override
    public void addCorsMappings(CorsRegistry registry) {
        registry
                .addMapping("/**")
                //.....
    }

    @Bean
    public ModelMapper modelMapper() {
        return new ModelMapper();
    }
}

@SpringBootApplication
public class Application{

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

}

CodePudding user response：

Sorry, I can't add a comment. But I think maybe you could provide more details. Because it's available for me. if it's a restapi, the /favicon.ico shouldn't be requested.

CodePudding user response：

The problem is that SpringBoot is probably trying to find a view with the name of Hello and you don't have one. Or have your templates misconfigured.

Try adding @ResponseBody annotation to your method and it should return the string as is:

@GetMapping("/test")
public @ResponseBody String test() {
   return "Hello";
}