统一异常处理：
@ControllerAdvice
public class GlobalExceptionHandler { private Logger logger = LoggerFactory.getLogger(getClass()); /**
* 处理自定义异常
*/
@ExceptionHandler(AuthException.class)
@ResponseBody
public R handleRRException(AuthException e){
R r = new R();
r.put("code", e.getCode());
r.put("msg", e.getMessage());
return r;
} @ExceptionHandler(Exception.class)
@ResponseBody
public R handleException(Exception e) {
logger.error(e.getMessage(), e);
return R.error();
}
}
现在网上一般都是这种比较简单的写法
还有其他方式：
public class ControllerExceptionResolver extends ExceptionHandlerExceptionResolver {
private static final Logger LOG = LoggerFactory.getLogger(ControllerExceptionResolver.class);
protected ModelAndView doResolveHandlerMethodException(HttpServletRequest request, HttpServletResponse response, HandlerMethod handlerMethod, Exception exception) {
String uri = request.getRequestURI();
LOG.error("异常url:" + uri + ",处理框架", exception);
if (exception instanceof StoneSystemRuntimeException) {
// TODO 攻击或被异常访问才会出现
StoneSystemRuntimeException stoneRuntimeException = (StoneSystemRuntimeException) exception;
BasicRes res = new BasicRes();
res.setMsg(stoneRuntimeException.getMsg());
res.setResCode(stoneRuntimeException.getCode());
this.excuteJson(response, res);
LOG.error("系统运行时异常", exception);
} else if (exception instanceof StoneBizzRuntimeException) {
// TODO 普通业务异常
StoneBizzRuntimeException stoneBizzException = (StoneBizzRuntimeException) exception;
BasicRes res = new BasicRes();
res.setMsg(stoneBizzException.getMsg());
res.setResCode(stoneBizzException.getCode());
this.excuteJson(response, res);
LOG.error("业务异常", exception);
} else {
// TODO 其他未处理异常
BasicRes res = new BasicRes();
res.setMsg("系统更新中,请稍后再试");
res.setResCode(ErrorCode.SYSTEM_EXCEPTION.getCode());
this.excuteJson(response, res);
LOG.error("未定义异常", exception);
}
return new ModelAndView();
}
private String excuteJson(HttpServletResponse response, BasicRes res) {
try {
byte[] jsonBytes = JSON.toJSONBytes(res);
String exJson = new String(jsonBytes, SysConstant.CHARSET_UTF8);
response.setContentType("application/json");
response.setCharacterEncoding("UTF-8");
response.getWriter().write(exJson);
return exJson;
} catch (Exception ex) {
ex.printStackTrace();
}
return null;
}
}
替换默认：
@Configuration
public class InterceptorConfig extends WebMvcConfigurerAdapter { @Override
public void extendHandlerExceptionResolvers(List<HandlerExceptionResolver> exceptionResolvers) {
super.extendHandlerExceptionResolvers(exceptionResolvers);
exceptionResolvers.add(this.getControllerExceptionResolver());
} @Bean
public ControllerExceptionResolver getControllerExceptionResolver() {
return new ControllerExceptionResolver();
}
}
继承实现ExceptionHandlerExceptionResolver类，这个类一般多见在SpringMVC中，但是SpringBoot中也可以继续使用
http://blog.didispace.com/springbootexception/