https://baijiahao.baidu.com/s?id=1613899474131869768&wfr=spider&for=pc
在Spring 3.2中,
新增了@ControllerAdvice、@RestControllerAdvice 注解,
用于定义@ExceptionHandler、@InitBinder、@ModelAttribute,
并应用于@RequestMapping、@PostMapping, @GetMapping注解中。
1.自定义异常
/**
* 异常处理器
*/
@RestControllerAdvice
public class BDExceptionHandler {
private Logger logger = LoggerFactory.getLogger(getClass());
@Autowired
LogService logService;
@ExceptionHandler(AuthorizationException.class)
public Object handleAuthorizationException(AuthorizationException e, HttpServletRequest request) {
logger.error(e.getMessage(), e);
if (HttpServletUtils.jsAjax(request)) {
return R.error(403, "未授权");
}
return new ModelAndView("error/403");
}
@ExceptionHandler({Exception.class})
public Object handleException(Exception e, HttpServletRequest request) {
LogDO logDO = new LogDO();
logDO.setGmtCreate(new Date());
logDO.setOperation(Constant.LOG_ERROR);
logDO.setMethod(request.getRequestURL().toString());
logDO.setParams(e.toString());
UserDO current = ShiroUtils.getUser();
if(null!=current){
logDO.setUserId(current.getUserId());
logDO.setUsername(current.getUsername());
}
logService.save(logDO);
logger.error(e.getMessage(), e);
if (HttpServletUtils.jsAjax(request)) {
return R.error(500, "服务器错误,请联系管理员");
}
return new ModelAndView("error/500");
}
}
2.异常处理器
/**
* 异常处理器
*/
@RestControllerAdvice
public class BDExceptionHandler {
private Logger logger = LoggerFactory.getLogger(getClass());
@Autowired
LogService logService;
@ExceptionHandler(AuthorizationException.class)
public Object handleAuthorizationException(AuthorizationException e, HttpServletRequest request) {
logger.error(e.getMessage(), e);
if (HttpServletUtils.jsAjax(request)) {
return R.error(403, "未授权");
}
return new ModelAndView("error/403");
}
@ExceptionHandler({Exception.class})
public Object handleException(Exception e, HttpServletRequest request) {
LogDO logDO = new LogDO();
logDO.setGmtCreate(new Date());
logDO.setOperation(Constant.LOG_ERROR);
logDO.setMethod(request.getRequestURL().toString());
logDO.setParams(e.toString());
UserDO current = ShiroUtils.getUser();
if(null!=current){
logDO.setUserId(current.getUserId());
logDO.setUsername(current.getUsername());
}
logService.save(logDO);
logger.error(e.getMessage(), e);
if (HttpServletUtils.jsAjax(request)) {
return R.error(500, "服务器错误,请联系管理员");
}
return new ModelAndView("error/500");
}
}
@RestController
public class MainsiteErrorController implements ErrorController {
private Logger logger = LoggerFactory.getLogger(getClass());
private static final String ERROR_PATH = "/error";
@Autowired
ErrorAttributes errorAttributes;
@RequestMapping(
value = {ERROR_PATH},
produces = {"text/html"}
)
public ModelAndView errorHtml(HttpServletRequest request, HttpServletResponse response) {
int code = response.getStatus();
if (404 == code) {
return new ModelAndView("error/404");
} else if (403 == code) {
return new ModelAndView("error/403");
} else if (401 == code) {
return new ModelAndView("login");
} else {
return new ModelAndView("error/500");
}
}
@RequestMapping(value = ERROR_PATH)
public R handleError(HttpServletRequest request, HttpServletResponse response) {
response.setStatus(200);
int code = response.getStatus();
if (404 == code) {
return R.error(404, "未找到资源");
} else if (403 == code) {
return R.error(403, "没有访问权限");
} else if (401 == code) {
return R.error(403, "登录过期");
} else {
return R.error(500, "服务器错误");
}
}
@Override
public String getErrorPath() {
// TODO Auto-generated method stub
return ERROR_PATH;
}
}
3.用在何处,如何用。
所有的controller方法如果抛出异常了都会被异常处理器拦截,但是controller上不用加任务方法,不用做处理。