异常处理

自定义异常类

package com.bingli.duskeval.exception;

import com.bingli.duskeval.common.ErrorCode;

/**
 * 自定义异常类
 *
 */
public class BusinessException extends RuntimeException {

    /**
     * 错误码
     */
    private final int code;

    public BusinessException(int code, String message) {
        super(message);
        this.code = code;
    }

    public BusinessException(ErrorCode errorCode) {
        super(errorCode.getMessage());
        this.code = errorCode.getCode();
    }

    public BusinessException(ErrorCode errorCode, String message) {
        super(message);
        this.code = errorCode.getCode();
    }

    public int getCode() {
        return code;
    }
}

全局异常处理器

package com.bingli.duskeval.exception;

import com.bingli.duskeval.common.BaseResponse;
import com.bingli.duskeval.common.ErrorCode;
import com.bingli.duskeval.common.ResultUtils;
import lombok.extern.slf4j.Slf4j;
import org.springframework.web.bind.annotation.ExceptionHandler;
import org.springframework.web.bind.annotation.RestControllerAdvice;

/**
 * 全局异常处理器
 *
 */
@RestControllerAdvice
@Slf4j
public class GlobalExceptionHandler {

    @ExceptionHandler(BusinessException.class)
    public BaseResponse<?> businessExceptionHandler(BusinessException e) {
        log.error("BusinessException", e);
        return ResultUtils.error(e.getCode(), e.getMessage());
    }

    @ExceptionHandler(RuntimeException.class)
    public BaseResponse<?> runtimeExceptionHandler(RuntimeException e) {
        log.error("RuntimeException", e);
        return ResultUtils.error(ErrorCode.SYSTEM_ERROR, "系统错误");
    }
}

抛异常工具类

package com.bingli.duskeval.exception;

import com.bingli.duskeval.common.ErrorCode;

/**
 * 抛异常工具类
 *
 */
public class ThrowUtils {

    /**
     * 条件成立则抛异常
     *
     * @param condition
     * @param runtimeException
     */
    public static void throwIf(boolean condition, RuntimeException runtimeException) {
        if (condition) {
            throw runtimeException;
        }
    }

    /**
     * 条件成立则抛异常
     *
     * @param condition
     * @param errorCode
     */
    public static void throwIf(boolean condition, ErrorCode errorCode) {
        throwIf(condition, new BusinessException(errorCode));
    }

    /**
     * 条件成立则抛异常
     *
     * @param condition
     * @param errorCode
     * @param message
     */
    public static void throwIf(boolean condition, ErrorCode errorCode, String message) {
        throwIf(condition, new BusinessException(errorCode, message));
    }
}