Filter 사용415 에러 등이 발생했을 때, header값이 어떤 값이 들어왔는지 확인이 안될 때 사용하면 좋을 것 같음body는 한번 사용되면, 사라지기 때문에 ContentCachingRequestWrapper wrappedRequest로 받아서 별도 처리해야 함정상적으로 처리되면 body가 출력되지만, 에러가 발생하는 경우(415 등) body는 null값이 출력됨@Slf4j@Componentpublic class RequestLoggingFilter implements Filter { @Override public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain) throws IOExc..

pom.xml에 아래 내용 추가 org.springframework.boot spring-boot-devtools runtime자동 build 설정: Project > Build Automatically 체크

StreamSpring bootimport org.springframework.core.io.Resource;import org.springframework.core.io.UrlResource;import org.springframework.http.HttpHeaders;import org.springframework.http.MediaType;import org.springframework.http.ResponseEntity;import org.springframework.web.bind.annotation.GetMapping;import org.springframework.web.bind.annotation.RequestMapping;import org.springframework.web.bind.a..

Spring boot@RestController@RequestMapping("/api")public class ResourceController { @GetMapping("/resource-with-map") public ResponseEntity> getResourceWithMap() throws IOException { // Load the resource (example: an image) Path imagePath = Paths.get("/path/to/your/image.jpg"); Resource resource = new UrlResource(imagePath.toUri()); if (!resource.exists() || !res..

Spring bootimport org.springframework.core.io.Resource@RestController@RequestMapping("/images")public class ImageController { @GetMapping("/{imageName}") public ResponseEntity getImage(@PathVariable String imageName) throws IOException { Path imagePath = Paths.get("/path/to/your/private/images/" + imageName); Resource resource = new UrlResource(imagePath.toUri()); if (..

javaimport org.springframework.stereotype.Controller;import org.springframework.ui.Model;import org.springframework.web.bind.annotation.GetMapping;@Controllerpublic class MyController { @GetMapping("/show-variable") public String showVariable(Model model) { String message = "Hello, Spring Boot!"; model.addAttribute("myVariable", message); // Add the variable to the model ..