SpringBoot全局异常处理@RestControllerAdvice

public abstract class BaseException extends RuntimeException {
    private static final long serialVersionUID = 310158626341330120L;
    private int errorCode;

    BaseException() {
        this((ResultCode)ResultCodeEnum.SYSTEM_ERROR);
    }

    BaseException(ResultCode errorCode) {
        super(errorCode.getMsg());
        this.errorCode = errorCode.getCode();
    }

    BaseException(Throwable cause) {
        this(ResultCodeEnum.SYSTEM_ERROR, cause);
    }

    BaseException(ResultCode errorCode, Throwable cause) {
        super(errorCode.getMsg(), cause);
        this.errorCode = errorCode.getCode();
    }

    BaseException(ResultCode errorCode, Throwable cause, boolean enableSuppression, boolean writableStackTrace) {
        super(errorCode.getMsg(), cause, enableSuppression, writableStackTrace);
        this.errorCode = errorCode.getCode();
    }

    public int getErrorCode() {
        return this.errorCode;
    }
}

public class BusinessException extends BaseException {
    private static final long serialVersionUID = -5829201794325483291L;

    public BusinessException() {
    }

    public BusinessException(ResultCode errorCode) {
        super(errorCode);
    }

    public BusinessException(Throwable cause) {
        super(cause);
    }

    public BusinessException(ResultCode errorCode, Throwable cause) {
        super(errorCode, cause);
    }
}

@ControllerAdvice({"com.xx", "cn.xx"})
@Configuration
 // 可以直接使用@RestControllerAdvice，等于@ControllerAdvice加上 @ResponseBody
public class GlobalExceptionHandler {
    private static final Logger LOG = LoggerFactory.getLogger(GlobalExceptionHandler.class);

    public GlobalExceptionHandler() {
    }

    @ResponseBody
    @ExceptionHandler({BaseException.class})
    public Result baseExceptionHandler(HttpServletRequest req, BaseException ex) {
        LOG.error("ERROR！GET REQUEST URL :", req.getRequestURI());
        LOG.error("errorCode=" + ex.getErrorCode(), ex);
        return new Result(ex.getErrorCode(), ex.getMessage(), ex.getMessage());
    }

    @ResponseBody
    @ExceptionHandler({Exception.class})
    public Result otherExceptionHandler(HttpServletRequest req, Exception ex) {
        LOG.error("ERROR！GET REQUEST URL :", req.getRequestURI());
        LOG.error(ex.getMessage(), ex);
        return new Result(ResultCodeEnum.SYSTEM_ERROR);
    }

    @ResponseBody
    @ExceptionHandler({ParamValidException.class})
    public Result methodArgumentNotValidHandler(HttpServletRequest req, ParamValidException ex) {
        LOG.error("ERROR！GET REQUEST URL :", req.getRequestURL());
        LOG.error(ex.getMessage(), ex);
        FieldValidError fieldValidError = ex.getFieldValidError();
        return new Result(Integer.parseInt(fieldValidError.getCode()), fieldValidError.getMessage(), fieldValidError.getMessage());
    }

    @ResponseBody
    @ExceptionHandler({MethodArgumentNotValidException.class})
    public Result methodArgumentNotValidHandler1(HttpServletRequest req, MethodArgumentNotValidException ex) {
        LOG.error("ERROR！GET REQUEST URL :", req.getRequestURL());
        LOG.error(ex.getMessage(), ex);
        BeanPropertyBindingResult bindingResult = (BeanPropertyBindingResult)ex.getBindingResult();
        FieldValidError fieldValidError;
        if (bindingResult.hasErrors()) {
            FieldError fieldError = bindingResult.getFieldError();
            fieldValidError = ValidMessageUtils.returnFieldValidError(fieldError.getField(), fieldError.getDefaultMessage());
        } else {
            fieldValidError = new FieldValidError((String)null, String.valueOf(ResultCodeEnum.INVALID_REQUEST.getCode()), ResultCodeEnum.INVALID_REQUEST.getMsg());
        }

        return new Result(Integer.parseInt(fieldValidError.getCode()), fieldValidError.getMessage(), fieldValidError.getMessage());
    }
}

Filter中抛出异常@RestControllerAdvice注解无法捕获的问题

原因：

请求进来 会按照 filter -> interceptor -> controllerAdvice -> aspect -> controller的顺序调用

当controller返回异常 也会按照controller -> aspect -> controllerAdvice -> interceptor -> filter来依次抛出

这种Filter发生的404、405、500错误都会到Spring默认的异常处理。如果你在配置文件配置了server.error.path的话，就会使用你配置的异常处理地址，如果没有就会使用你配置的error.path路径地址，如果还是没有，默认使用/error来作为发生异常的处理地址。如果想要替换默认的非Controller异常处理直接实现Spring提供的ErrorController接口就行了

方法一

新建MyErrorController并继承BasicErrorController

 

import cn.hutool.core.util.ObjectUtil;
import com.iof.upms.common.result.Result;
import io.swagger.annotations.Api;
import org.springframework.boot.autoconfigure.web.ErrorProperties;
import org.springframework.boot.autoconfigure.web.servlet.error.BasicErrorController;
import org.springframework.boot.web.servlet.error.DefaultErrorAttributes;
import org.springframework.http.HttpStatus;
import org.springframework.http.MediaType;
import org.springframework.http.ResponseEntity;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;
import javax.servlet.http.HttpServletRequest;
import java.util.Map;

@RestController
@Api(value = "filter错误处理", description = "filter错误处理")
public class MyErrorController extends BasicErrorController {

    public MyErrorController() {
        super(new DefaultErrorAttributes(), new ErrorProperties());
    }

    @Override
    @RequestMapping(produces = {MediaType.APPLICATION_JSON_VALUE})
    public ResponseEntity<Map<String, Object>> error(HttpServletRequest request) {
        getErrorProperties().setIncludeException(true);
        getErrorProperties().setIncludeMessage(ErrorProperties.IncludeAttribute.ALWAYS);
        getErrorProperties().setIncludeStacktrace(ErrorProperties.IncludeAttribute.ALWAYS);
        Map<String, Object> body = getErrorAttributes(request, getErrorAttributeOptions(request, MediaType.ALL));
        HttpStatus status = getStatus(request);
        //错误信息
        Object obj = body.get("message");
        //获取异常信息
        String exception = String.valueOf(body.get("exception"));
        //如果是shiro异常则返回666，否则返回500
        int code = "org.apache.shiro.authc.AuthenticationException".equals(exception) ? 666 : 500;
        return new ResponseEntity(Result.error(code, ObjectUtil.isNull(obj) ? "系统异常，请重新登录！" : String.valueOf(obj)), HttpStatus.OK);
    }
}

方法二

import org.springframework.boot.web.servlet.error.ErrorController;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import javax.servlet.http.HttpServletRequest;

@RestController
public class ErrorControllerImpl implements ErrorController {

    @Override
    public String getErrorPath() {
        return "/error";
    }

    @RequestMapping("/error")
    public void handleError(HttpServletRequest request) throws Throwable {
        if (request.getAttribute("javax.servlet.error.exception") != null) {
            throw (Throwable) request.getAttribute("javax.servlet.error.exception");
        }
    }
}