揭阳网站设计制作百度后台管理

1. 首先定义一个统一管理所有异常的类，加上注解@RestControllerAdvice
2. 定义处理不同异常的方法，加上注解 @ExceptionHandler

3. @RestControllerAdvice
   public class GlobalExceptionHandler
   {private static final Logger log = LoggerFactory.getLogger(GlobalExceptionHandler.class);/*** 权限码异常*/@ExceptionHandler(NotPermissionException.class)public AjaxResult handleNotPermissionException(NotPermissionException e, HttpServletRequest request){String requestURI = request.getRequestURI();log.error("请求地址'{}',权限码校验失败'{}'", requestURI, e.getMessage());return AjaxResult.error(HttpStatus.FORBIDDEN, "没有访问权限，请联系管理员授权");}/*** 角色权限异常*/@ExceptionHandler(NotRoleException.class)public AjaxResult handleNotRoleException(NotRoleException e, HttpServletRequest request){String requestURI = request.getRequestURI();log.error("请求地址'{}',角色权限校验失败'{}'", requestURI, e.getMessage());return AjaxResult.error(HttpStatus.FORBIDDEN, "没有访问权限，请联系管理员授权");}/*** 请求方式不支持*/@ExceptionHandler(HttpRequestMethodNotSupportedException.class)public AjaxResult handleHttpRequestMethodNotSupported(HttpRequestMethodNotSupportedException e, HttpServletRequest request){String requestURI = request.getRequestURI();log.error("请求地址'{}',不支持'{}'请求", requestURI, e.getMethod());return AjaxResult.error(e.getMessage());}/*** 业务异常*/@ExceptionHandler(ServiceException.class)public AjaxResult handleServiceException(ServiceException e, HttpServletRequest request){log.error(e.getMessage(), e);Integer code = e.getCode();return StringUtils.isNotNull(code) ? AjaxResult.error(code, e.getMessage()) : AjaxResult.error(e.getMessage());}/*** 请求路径中缺少必需的路径变量*/@ExceptionHandler(MissingPathVariableException.class)public AjaxResult handleMissingPathVariableException(MissingPathVariableException e, HttpServletRequest request){String requestURI = request.getRequestURI();log.error("请求路径中缺少必需的路径变量'{}',发生系统异常.", requestURI, e);return AjaxResult.error(String.format("请求路径中缺少必需的路径变量[%s]", e.getVariableName()));}/*** 请求参数类型不匹配*/@ExceptionHandler(MethodArgumentTypeMismatchException.class)public AjaxResult handleMethodArgumentTypeMismatchException(MethodArgumentTypeMismatchException e, HttpServletRequest request){String requestURI = request.getRequestURI();String value = Convert.toStr(e.getValue());if (StringUtils.isNotEmpty(value)){value = EscapeUtil.clean(value);}log.error("请求参数类型不匹配'{}',发生系统异常.", requestURI, e);return AjaxResult.error(String.format("请求参数类型不匹配，参数[%s]要求类型为：'%s'，但输入值为：'%s'", e.getName(), e.getRequiredType().getName(), value));}/*** 拦截未知的运行时异常*/@ExceptionHandler(RuntimeException.class)public AjaxResult handleRuntimeException(RuntimeException e, HttpServletRequest request){String requestURI = request.getRequestURI();log.error("请求地址'{}',发生未知异常.", requestURI, e);return AjaxResult.error(e.getMessage());}/*** 系统异常*/@ExceptionHandler(Exception.class)public AjaxResult handleException(Exception e, HttpServletRequest request){String requestURI = request.getRequestURI();log.error("请求地址'{}',发生系统异常.", requestURI, e);return AjaxResult.error(e.getMessage());}/*** 自定义验证异常*/@ExceptionHandler(BindException.class)public AjaxResult handleBindException(BindException e){log.error(e.getMessage(), e);String message = e.getAllErrors().get(0).getDefaultMessage();return AjaxResult.error(message);}/*** 自定义验证异常*/@ExceptionHandler(MethodArgumentNotValidException.class)public Object handleMethodArgumentNotValidException(MethodArgumentNotValidException e){log.error(e.getMessage(), e);String message = e.getBindingResult().getFieldError().getDefaultMessage();return AjaxResult.error(message);}/*** 内部认证异常*/@ExceptionHandler(InnerAuthException.class)public AjaxResult handleInnerAuthException(InnerAuthException e){return AjaxResult.error(e.getMessage());}/*** 演示模式异常*/@ExceptionHandler(DemoModeException.class)public AjaxResult handleDemoModeException(DemoModeException e){return AjaxResult.error("演示模式，不允许操作");}
   }