笔记-＞异常抛出判断处理

川长思鸟来 2022-12-30 08:08 204阅读 0赞

# 异常抛出判断处理笔记 #

自用的

#### 异常处理类 ####

@Slf4j
    public class ExceptionUtilClass { 
    
        /** * 异常抛出判断处理 * @param param * @param msg */
        public static void isVerify(Object param, String msg) { 
            /** * 处理数据 * @param param */
            try{ 
                if (null == param) { 
                    throw new ServiceException(msg);
                }
                if (param instanceof Boolean) { 
                    if ((boolean) param) { 
                        throw new ServiceException(msg);
                    }
                }
                if (param instanceof List<?>) { 
                    if (((List<?>) param).isEmpty()) { 
                        throw new ServiceException(msg);
                    }
                }
                if (param instanceof Integer) { 
                    if ((Integer) param < 1) { 
                        throw new ServiceException(msg);
                    }
                }
                if (param instanceof String) { 
                    if ( StringUtils.isBlank((String)param)) { 
                        throw new CustomException(msg);
                    }
                }
            }catch (ServiceException v){ 
                log.info("自定义异常：{}", v.getMessage());
                throw new ServiceException(v.getMessage());
            }catch (Exception e){ 
                log.info("系统未知异常：{}", e.getMessage());
                throw new ServiceException(e.getMessage());
            }finally { 
                log.info("自定义异常处理完成");
            }
    
        }
    }

#### 异常类 ####

public class ServiceException extends RuntimeException{ 
    
        public ServiceException() { 
        }
    
        public ServiceException(String message) { 
            super(message);
        }
    
    
    }

#### 调用 ####

verifyCodeDto（需要判断的异常参数）
    ExceptionUtil.isVerify(verifyCodeDto, "抛出异常信息");
    
    
    如：
    ExceptionUtil.isVerify(verifyCodeDto, "授权码或设备类型为空");
    ExceptionUtil.isVerify(verifyCodeDto.getAuthCode(), "授权码为空");
    ExceptionUtil.isVerify(verifyCodeDto.getManagementType(), "设备类型为空");
    ExceptionUtil.isVerify(eqEquipment.getStatus() != 0, "设备已到期或已禁用");

#### 异常详细信息的获取 ####

/** * 获取exception的详细错误信息。 */
        public static String getExceptionMessage(Throwable e)
        { 
            StringWriter sw = new StringWriter();
            e.printStackTrace(new PrintWriter(sw, true));
            String str = sw.toString();
            return str;
        }
    
        public static String getRootErrorMseeage(Exception e)
        { 
            Throwable root = ExceptionUtils.getRootCause(e);
            root = (root == null ? e : root);
            if (root == null)
            { 
                return "";
            }
            String msg = root.getMessage();
            if (msg == null)
            { 
                return "null";
            }
            return StringUtils.defaultString(msg);
        }