springboot下全局异常处理器学习
这是根据若依框架下的学习,在平时做业务时,难免会出现对各种业务的异常进行捕抓和处理/*** 全局异常处理器** @author ruoyi*/@RestControllerAdvicepublic class GlobalExceptionHandler{private static final Logger log = LoggerFactory.getLogger(GlobalExceptio
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这是根据若依框架下的学习,在平时做业务时,难免会出现对各种业务的异常进行捕抓和处理
/**
* 全局异常处理器
*
* @author ruoyi
*/
@RestControllerAdvice
public class GlobalExceptionHandler
{
private static final Logger log = LoggerFactory.getLogger(GlobalExceptionHandler.class);
/**
* 权限校验异常
*/
@ExceptionHandler(AccessDeniedException.class)
public AjaxResult handleAccessDeniedException(AccessDeniedException e, HttpServletRequest request)
{
String requestURI = request.getRequestURI();
log.error("请求地址'{}',权限校验失败'{}'", requestURI, e.getMessage());
return AjaxResult.error(HttpStatus.FORBIDDEN, "没有权限,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());
}
/**
* 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);
}
/**
* 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");
}
}
定义一个全局异常处理器类,并添加@RestControllerAdvice
然后针对不同业务场景的异常,编写对应的方法,只需@ExceptionHandler指明是哪种类型的异常(自定义或者系统自带)
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