RestTemplate捕捉异常写法

自定义异常类

public class ServiceException extends RuntimeException {

    private ErrorCode errorCode; // 枚举类

    public ServiceException() {
        super();
    }

    public ServiceException(ErrorCode err) {
        super();
        this.errorCode = err;
    }

    public ServiceException(ErrorCode err, String desc) {
        this.errorCode = err;
        this.errorCode.desc = desc;
    }

    public ErrorCode getErrorCode() {
        return errorCode;
    }
}

接口实现类

@Slf4j
public class XxxImpl implements XxxService {

    @Resource
    private RestTemplate restTempdate;

    @override
    public void doSomething() {
        XxxResp resp;
        try {
            Map<String, String> map = new HashMap<>();
            resp = restTempdate.postForObject(url, map, XxxResp.class);
            if (resp.getCode() != 200) {
                throw new ServiceException(ErrCode.XX_ERROR); // 抛出自定义异常
            }
        } catch (ServiceException se) {
            throw new ServiceException(se.getErrCode());
        } catch (Exception e) {
            log.error("异常", e);
            throw new ServiceException(ErrCode.XX_ERROR);
        }
    }
}