尚硅谷《谷粒商城项目总结》

/*** @author: bamboo
 * @date : 2020-04-11
 */
public interfaceMallErrorCode {

    /*** 获取错误码
     *
     * @return错误码
     */String geCode();

    /*** 获取错误消息
     *
     * @return错误消息
     */String getMsg();

}


/*** @author: bamboo
 * @date : 2020-04-11
 */
public enum UserErrorEnum implementsMallErrorCode {

    /***
     */USER_NOT_FOUND("20001", "没有找到此用户"),

    USER_DELETED("200002", "用户已被删除");

    private finalString code;

    private finalString msg;

    UserErrorEnum(String code, String msg) {
        this.code =code;
        this.msg =msg;
    }

    @Override
    publicString geCode() {
        return this.code;
    }

    @Override
    publicString getMsg() {
        return this.msg;
    }
}


/*** @author: bamboo
 * @date : 2020-04-11
 */
public class MallException extendsRuntimeException {

    private String code = "500";

    privateString msg;

    publicMallException(String code, String msg) {
        super(msg);
        this.code =code;
    }

    publicMallException(MallErrorCode mallErrorCode) {
        this(mallErrorCode.geCode(), mallErrorCode.getMsg());
    }

    public static voidcreateFailResult(MallErrorCode mallErrorCode) {
        throw newMallException(mallErrorCode);
    }

    public static voidcreateFailResult(String code, String msg) {
        throw newMallException(code, msg);
    }

    public static voidmain(String[] args) {
        throw newMallException(UserErrorEnum.USER_DELETED);
    }
}