import com.dkjk.vo.ResponseBean;
import lombok.extern.slf4j.Slf4j;
import org.springframework.http.converter.HttpMessageNotReadableException;
import org.springframework.web.HttpRequestMethodNotSupportedException;
import org.springframework.web.bind.MethodArgumentNotValidException;
import org.springframework.web.bind.MissingServletRequestParameterException;
 
import org.springframework.web.bind.annotation.ExceptionHandler;
import org.springframework.web.bind.annotation.RestControllerAdvice;

import javax.servlet.http.HttpServletRequest;

@RestControllerAdvice
@Slf4j
public class GlobalExceptionHandler {

    // 捕捉其他所有異常
    @ExceptionHandler(value = Exception.class
 
)
    public ResponseBean apiErrorHandlerException(HttpServletRequest request, Exception e) {
        String requestMethod = request.getMethod();
        String requestURI = request.getRequestURI();
        log.error("用" + requestMethod + "方式請求" + requestURI + "時出現異常", e);
        String eMessage = e.getMessage();
        
 
if (e instanceof HttpRequestMethodNotSupportedException) {
            log.warn("請求方式錯誤，{}", e.getMessage());
            return new ResponseBean(400, "請求方式錯誤", eMessage);
        }
        if (e instanceof MissingServletRequestParameterException) {
            log.warn("引數錯誤，缺少引數，{}", e.getMessage());
            return new ResponseBean(400, "請求引數錯誤", e.getMessage());
        }
        if (e instanceof MethodArgumentNotValidException) {
            log.warn("引數錯誤，引數校驗不通過導致的，{}", e.getMessage());
            MethodArgumentNotValidException methodArgumentNotValidException = (MethodArgumentNotValidException) e;
            String defaultMessage = methodArgumentNotValidException.getBindingResult().getFieldError().getDefaultMessage();
            return new ResponseBean(400, "請求引數錯誤", defaultMessage);
        }
        if (e instanceof HttpMessageNotReadableException) {
            log.warn("引數錯誤，請求引數進行反序列化時導致的(引數型別不對應什麼的)，{}", e.getMessage());
            return new ResponseBean(400, "請求引數錯誤", e.getMessage());
        }
        return new ResponseBean(99999, "系統出現異常", null);
    }
}