在过滤器Filter中抛出一个全局异常可以捕获的异常

1、创建自定义异常

public class TokenException extends RuntimeException {
    private static final long serialVersionUID = 1L;
    private Integer errCode;
    private String message;

    public TokenException(Integer errCode){
        this.errCode = errCode;
        this.message = ExceptionEnum.getMessage(errCode);
    }
    public TokenException(String message){
        this.errCode = ExceptionEnum.TOKEN.getCode();
        this.message = message;
    }
    public TokenException(int errCode, String message) {
        this.errCode = errCode;
        this.message = message;
    }

    public TokenException(ExceptionEnum exceptionEnum) {
        this.errCode = exceptionEnum.getCode();
        this.message = exceptionEnum.getMessage();
    }

    public TokenException(ExceptionEnum exceptionEnum, String message) {
        this.errCode = exceptionEnum.getCode();
        this.message = message;
    }

    public int getCode() {
        return errCode;
    }

    public void setCode(int errCode) {
        this.errCode = errCode;
    }

    public String getMessage() {
        return message;
    }

    public void setMessage(String message) {
        this.message = message;
    }
}

2、在过滤器中注入HandlerExceptionResolver

@Autowired
@Qualifier("handlerExceptionResolver")
private HandlerExceptionResolver resolver;

3.使用

if(StringUtils.isEmpty(redisToken)){
    resolver.resolveException(request, response, null, new TokenException(ExceptionEnum.TOKEN));
    return;
}

4、全局异常捕获

@Slf4j
@ResponseBody
@ControllerAdvice
public class GlobalExceptionHandler {

    @ExceptionHandler({TokenException.class})
    public Map<String,Object> TokenException(TokenException e) {
        log.error("捕获业务异常：", e);
        Map<String,Object> map = new HashMap<String,Object>(2);
        map.put("code",e.getCode());
        map.put("msg",e.getMessage());
        return map;
    }

}

    

本文地址：https://blog.csdn.net/qq_38377774/article/details/107696206