举例：

 throw new LifeCircleException(
HttpStatus.INTERNAL_SERVER_ERROR, 
"SAMPLE NOT EXIST", "样例查询出错");

1、项目中代码的原型

throw new LifeCircleException(HttpStatus.INTERNAL_SERVER_ERROR,
                                                 "LC/PT_CODE_IS_NOT_EXIST",  //问题提醒
                          code + ":不是合法的PT维度");`    //问题的具体原因

2、数据库操作用Repository的时候要用try--catch包裹。异常的表示为

        try {
            if (isQuesRepository(resType)) {                            
                commonServiceHelper.saveContributeToQuesDB(contribute);
            } else {
                contributeRepository.add(contribute);
            }
        } catch (EspStoreException e) {
            throw new LifeCircleException(
                    HttpStatus.INTERNAL_SERVER_ERROR,
                    LifeCircleErrorMessageMapper.StoreSdkFail
                            .getCode(), e.getMessage());
        }

3、日期转换出问题的时候用

    private boolean isValidDate(String str) {

        boolean convertSuccess = true;
        SimpleDateFormat format = new SimpleDateFormat("yyyy-MM-dd");
        format.setLenient(false);
        try {
            format.parse(str);
        } catch (java.text.ParseException e) {
            throw new LifeCircleException(HttpStatus.INTERNAL_SERVER_ERROR,
                    LifeCircleErrorMessageMapper.DateFormatFail);
        }
        return convertSuccess;
    }