I’m trying to get request body of request and sending to database
Here is my lines of code :

@Component
public class CustomInterceptor implements HandlerInterceptor  {
    private static final Logger log = LoggerFactory.getLogger(CustomInterceptor.class);
    private final LogStore logStore;

    public CustomInterceptor(LogStore logStore) {
        this.logStore = logStore;
    }

    @Override
    public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception {
        // Wrap the request with ContentCachingRequestWrapper
        ContentCachingRequestWrapper wrappedRequest = new ContentCachingRequestWrapper(request);

        // Log request details
        Log requestLog = new Log();
        requestLog.setPath(wrappedRequest.getRequestURI());
        requestLog.setMethod(wrappedRequest.getMethod());
        String requestBody = getRequestBody(wrappedRequest);
        requestLog.setRequestObject(requestBody);

        // Save request log to database
        logStore.save(requestLog);

        return true; // Proceed with handler execution
    }

    private String getRequestBody(ContentCachingRequestWrapper request) {
        byte[] buf = request.getContentAsByteArray();
        if (buf.length > 0) {
            return new String(buf, 0, buf.length, StandardCharsets.UTF_8);
        }
        return "";
    }
}

But I always get an empty request body,even though I send a Post method with a JSON request body, what should I do to solve this problem ?
Thanks a lot