个人网站建站日记-面试宝典功能

标签：set get question 宝典日记面试 saveInterviewQuestion Id public

目前，关于java的面试相关的，网上可以说是多的数不胜数，但是关于.net的，找来找去却发现很少，并且大部分相似，所以，我这里便想做个关于.net面试相关的功能，所以就我花了好几个周末的时间，毛毛糙糙的算是把这个功能赶了出来，当然也有很多不完善的地方。欢迎大家赏脸哈！现在我把我的实现步骤贴出来分享一下。
因为一个人开发，个人精力以及能力有限，很多地方也会有不好的地方，所以希望大家多多包涵，如果感兴趣的话，可以点进去瞧瞧 https://www.xiandanplay.com/interview-manual

1.功能需求

大致罗列下需求：

题目分类管理
题目的发布，只要谁登录了网站都可以发布，默认是待审核的，网页只显示已审核、待审核的功能
题目解析，发布者必须填写自己的对题目的解析，其他人也可以提交参考解析，并且展现出来
对题目解析的查看，如果第一次查看这个题目，需要点击“查看解析”的按钮，如果已登录并且查看过，则第二次就不需要点“查看解析”的按钮了。
支持对题目的标题、难度、标签的查询

2.表（实体）结构设计

这里我就用实体来表示了，因为我是用的ef，基本上用CodeFirst就是表结构了

1.题目表

public class Question : Entity<long>
    {
        /// <summary>
        /// 标题
        /// </summary>
        public string Title { get; set; }
        /// <summary>
        /// 类型
        /// </summary>
        public QuestionTypeEnum QuestionType { get; set; }
        /// <summary>
        /// 提交人id
        /// </summary>
        public long UserId { get; set; }
        /// <summary>
        /// 提交人
        /// </summary>
        public User User { get; set; }
        /// <summary>
        /// 题目分类id
        /// </summary>
        public long? QuestionCategoryId { get; set; }
        /// <summary>
        /// 题目标签
        /// </summary>
        public string QuestionTag { get; set; }
        /// <summary>
        /// 浏览数
        /// </summary>
        public int BrowserCount { get; set; }
        /// <summary>
        /// 评论数
        /// </summary>
        public int CommentCount { get; set; }
        /// <summary>
        /// 收藏数
        /// </summary>
        public int CollectCount { get; set; }
        /// <summary>
        /// 奖励金币
        /// </summary>
        public int RewardCoin { get; set; }
        /// <summary>
        /// 是否发布
        /// </summary>
        public bool IsPublish { get; set; }
        /// <summary>
        /// 审核状态
        /// </summary>
        public ApproveStatus ApproveStatus { get; set; }
    }

2.题目解析表

 public class QuestionAnalysis : Entity<long>
    {
        /// <summary>
        /// 题目id
        /// </summary>
        public long InterviewQuestionId { get; set; }
        /// <summary>
        /// 解析简要
        /// </summary>
        public string AnalysisContentDescription { get; set; }
        /// <summary>
        /// 题目解析
        /// </summary>
        public string AnalysisContent { get; set; }
        /// <summary>
        /// 提交人id
        /// </summary>
        public long UserId { get; set; }
        /// <summary>
        /// 提交人
        /// </summary>
        public User User { get; set; }
        /// <summary>
        /// 评论数
        /// </summary>
        public int CommentCount { get; set; }
        /// <summary>
        /// 赞同数
        /// </summary>
        public int AgreeCount { get; set; }
        /// <summary>
        /// 反对数
        /// </summary>
        public int AgainstCount { get; set; }
        /// <summary>
        /// 是否最佳解析
        /// </summary>
        public bool? Best { get; set; }
        /// <summary>
        /// 是否默认
        /// </summary>
        public bool? IsDefault { get; set; }
        /// <summary>
        /// 收货金币
        /// </summary>
        public int? GetCoin { get; set; }
        /// <summary>
        /// 审核状态
        /// </summary>
        public ApproveStatus ApproveStatus { get; set; }
    }

3.题目分类表

public class InterviewQuestionCategory: Entity<long>
    {
        /// <summary>
        /// 分类名称
        /// </summary>
        public string Name { get; set; }
        /// <summary>
        /// 图标
        /// </summary>
        public string Icon { get; set; }
        /// <summary>
        /// 父分类id
        /// </summary>
        public long? ParentCategoryId { get; set; }
        /// <summary>
        /// 是否启用
        /// </summary>
        public bool IsEnable { get; set; }
        /// <summary>
        ///  排序
        /// </summary>
        public int SortNo { get; set; }
        /// <summary>
        /// 描述
        /// </summary>
        public string Description { get; set; }
    }

大致就罗列这几个主要的吧。

4、业务逻辑实现

业务代码逻辑倒是没有特别复杂，都是写CRUD,一看就会,这里举例部分代码。

递归获取分类树

  public async Task<List<TreeVM>> GetCategoryTreesAsync()
        {
            List<InterviewQuestionCategory> categorys = await GetCategorys();
            return BuildTrees(categorys);
        }

 private List<TreeVM> BuildTrees(List<InterviewQuestionCategory> interviewQuestionCategories)
        {
            List<TreeVM> list = new List<TreeVM>();
            var roots = interviewQuestionCategories.Where(s => !s.ParentCategoryId.HasValue).OrderBy(s => s.SortNo);
            foreach (var root in roots)
            {
                TreeVM interviewCategoryTreeVM = new TreeVM();
                interviewCategoryTreeVM.Id = root.Id;
                interviewCategoryTreeVM.Label = root.Name;
                interviewCategoryTreeVM.Icon = root.Icon;
                GetChildrens(root, interviewQuestionCategories, interviewCategoryTreeVM);
                list.Add(interviewCategoryTreeVM);
            }
            return list;
        }

        private List<TreeVM> GetChildrens(InterviewQuestionCategory root, List<InterviewQuestionCategory> interviewQuestionCategories, TreeVM interviewCategoryTreeVM = null)
        {
            var childrens = interviewQuestionCategories.Where(s => s.ParentCategoryId == root.Id).OrderBy(s => s.SortNo);
            List<TreeVM> list = new List<TreeVM>();
            foreach (var item in childrens)
            {
                TreeVM treeVM = new TreeVM();
                treeVM.Id = item.Id;
                treeVM.Label = item.Name;
                treeVM.Icon = item.Icon;
                list.Add(treeVM);
                if (interviewQuestionCategories.Any(s => s.ParentCategoryId == item.Id))
                    GetChildrens(item, interviewQuestionCategories, treeVM);
            }
            interviewCategoryTreeVM.Children = list;
            return list;
        }

创建题目

 public async Task<long> SaveQuestion(SaveInterviewQuestionVM saveInterviewQuestion)
        {
            if (saveInterviewQuestion.IsPublish && string.IsNullOrEmpty(saveInterviewQuestion.AnalysisContent))
                throw new ValidationException("题目解析内容为空");
            var questionRepository = unitOfWork.GetRepository<Question>();
            var questionAnalysisRepository = unitOfWork.GetRepository<QuestionAnalysis>();
            Question question = null;
            QuestionAnalysis questionAnalysis = null;
            bool isAddQuestion = true;
            bool isAddAnalysis = true;
            if (saveInterviewQuestion.Id.HasValue)
            {
                question = await questionRepository.SelectByIdAsync(saveInterviewQuestion.Id.Value);
                if (question.Id != CurrentLoginUser.UserId)
                    throw new ValidationException("无权修改");
                questionAnalysis = await questionAnalysisRepository.Select(s => s.InterviewQuestionId == saveInterviewQuestion.Id.Value && s.IsDefault == true).FirstOrDefaultAsync();
                isAddQuestion = false;
            }
            else
            {
                question = new Question()
                {
                    Id = CreateEntityId()
                };
            }
            question.Title = saveInterviewQuestion.Title;
            question.QuestionDifficulty = saveInterviewQuestion.Difficultion;
            question.QuestionCategoryId = saveInterviewQuestion.CategoryId;
            question.UserId = LoginUserId.Value;
            question.ApproveStatus = ApproveStatus.ToPass;
            question.IsPublish = saveInterviewQuestion.IsPublish;
            question.QuestionType = QuestionTypeEnum.面试题;
            if (saveInterviewQuestion.QuestionTags != null && saveInterviewQuestion.QuestionTags.Length > 0)
                question.QuestionTag = string.Join(',', saveInterviewQuestion.QuestionTags);
            if (questionAnalysis == null)
            {
                questionAnalysis = new QuestionAnalysis();
                questionAnalysis.Id = CreateEntityId();
                questionAnalysis.IsDefault = true;
                questionAnalysis.InterviewQuestionId = question.Id;
                questionAnalysis.UserId = LoginUserId.Value;
                questionAnalysis.ApproveStatus = ApproveStatus.ToPass;
                questionAnalysis.AnalysisContent = saveInterviewQuestion.AnalysisContent;
            }
            else
            {
                questionAnalysis.AnalysisContent = saveInterviewQuestion.AnalysisContent;
                isAddAnalysis = false;
            }
            if (isAddQuestion)
                await questionRepository.InsertAsync(question);
            else
                await questionRepository.UpdateAsync(question);
            if (isAddAnalysis)
                await questionAnalysisRepository.InsertAsync(questionAnalysis);
            else
                await questionAnalysisRepository.UpdateAsync(questionAnalysis);
            await unitOfWork.CommitAsync();
            return question.Id;
        }

使用Redis的Set类型处理赞成与反对操作

 public async Task<bool> AgreeFunc(InterviewQuestionAnalysisAgreeVM agreeVM)
        {
            var cache = CacheClient.CreateClient();
            string cacheKey = $"{CacheKey.InterviewQuestionAnalysisAgreeKey}_{agreeVM.InterviewQuestionAnalysisId}";
            string cacheValue = $"{agreeVM.AgreeType}_{agreeVM.InterviewQuestionAnalysisId}_{LoginUserId.Value}";
            if (agreeVM.AgreeType == 1)
            {
                string oldCacheValue = $"2_{agreeVM.InterviewQuestionAnalysisId}_{LoginUserId.Value}";
                cache.SetRemove(cacheKey, oldCacheValue);
            }
            else
            {
                string oldCacheValue = $"1_{agreeVM.InterviewQuestionAnalysisId}_{LoginUserId.Value}";
                cache.SetRemove(cacheKey, oldCacheValue);
            }
            bool result = cache.AddSet(cacheKey, cacheValue);
            if (result)
            {
                List<string> setMembers= cache.GetMembersBySetKey(cacheKey);
                int agreeCount = 0;
                int againstCount = 0;
                foreach (var item in setMembers)
                {
                    if (item.StartsWith('1'))
                        agreeCount += 1;
                    else
                        againstCount += 1;
                }
                await qaRepository.UpdateAgree(agreeVM.InterviewQuestionAnalysisId, agreeCount, againstCount);
                await unitOfWork.CommitAsync();
                return true;
            }
            return false;

        }

以上只是部分代码，仅供一下参考，但是也花费了我好多个周末的时间，其它的就不说了，放几个截图看看吧，部分的功能还没完善，这个只是初版。

面试宝典首页图（每日推荐那里还没完成）

详细的面试列表界面

查看页面

提交参考解析的页面

作者：程序员奶牛

个人主页：https://www.xiandanplay.com/user/user-home?id=16782377660907520

标签：set,get,question,宝典,日记,面试,saveInterviewQuestion,Id,public
From： https://www.cnblogs.com/MrHanBlog/p/18546762