ABP缓存示例

Posted 2020-10-22 Lulus

private readonly ICacheManager _cacheManager;

public ProgrammeManage(ICacheManager cacheManager)
{
    _cacheManager = cacheManager;
}

/// <summary>
/// 定时任务：更新缓存(仅查询今年的投票结果、按照节目顺序排序)
/// </summary>
/// <returns></returns>
public async Task SaveVoteResult()
{
    GetAllProgrammeInfosByYearOutput result = GetVoteResult(DateTime.Now.Year).Result;
    await _cacheManager.GetCache("GetAllProgrammeInfosByYearOutput")
        .SetAsync("GetAllProgrammeInfosByYearOutput", result);
}

/// <summary>
/// 查询缓存
/// </summary>
/// <param name="inputYear"></param>
/// <param name="sortProperty"></param>
/// <returns></returns>
public async Task<GetAllProgrammeInfosByYearOutput> GetVoteResult(long inputYear,string sortProperty)
{
    var cache = _cacheManager
        .GetCache("GetAllProgrammeInfosByYearOutput");
    long year = inputYear == 0 ? DateTime.Now.Year : inputYear;
    //先尝试读取缓存，缓存没有则读取数据库
    var result =await cache.GetAsync("GetAllProgrammeInfosByYearOutput", async ()=> { return await GetVoteResult(year); }) as GetAllProgrammeInfosByYearOutput;
    return result;
}