private ResourceCollect <BookDto> CreateLinksForBooks(Guid authorId, ResourceCollect <BookDto> books)
{
books.Links.Clear();
books.Links.Add(new Link(HttpMethods.Get.ToString(),
"self",
Url.Link(nameof(GetBookAsync), new { authorId })));
books.Links.Add(new Link(HttpMethods.Delete.ToString(),
"create book",
Url.Link(nameof(CreateBookAsync), null)));
return(books);
}
public async Task Tets_GetAllAuthors()
{
// Arrange
var author = new Author
{
Id = Guid.NewGuid(),
Name = "Author Test 1",
Email = "*****@*****.**",
BirthPlace = "Beijing"
};
var authorDto = new AuthorDto
{
Id = author.Id,
Name = author.Name,
Email = author.Email,
BirthPlace = author.BirthPlace
};
var authorList = new List <Author> {
author
};
var authorDtoList = new List <AuthorDto> {
authorDto
};
var parameters = new AuthorResourceParameters();
var authors = new PagedList <Author>(authorList, totalCount: authorList.Count, pageNumber: parameters.PageNumber, pageSize: parameters.PageSize);
_mockAuthorRepository.Setup(m => m.GetAllAsync(It.IsAny <AuthorResourceParameters>())).Returns(Task.FromResult(authors));
_mockMapper.Setup(m => m.Map <IEnumerable <AuthorDto> >(It.IsAny <IEnumerable <Author> >())).Returns(authorDtoList);
_mockUrlHelper.Setup(m => m.Link(It.IsAny <string>(), It.IsAny <object>())).Returns("demo url");
_authorController.Url = _mockUrlHelper.Object;
// Act
var actionResult = await _authorController.GetAuthorsAsync(parameters);
// Assert
ResourceCollect <AuthorDto> resourceCollect = actionResult.Value;
Assert.True(1 == resourceCollect.Items.Count);
Assert.Equal(authorDto, resourceCollect.Items[0]);
Assert.True(_authorController.Response.Headers.ContainsKey("X-Pagination"));
}
public async Task <ActionResult <ResourceCollect <BookDto> > > GetBooksAsync([FromRoute] Guid authorId)
{
string key = $"{authorId}_books";
if (!MemoryCache.TryGetValue(key, out ResourceCollect <BookDto> resourceList))
{
var books = await RepositoryWrapper.Book.GetBooksAsync(authorId);
if (books == null || !books.Any())
{
return(NotFound());
}
var bookDtoList = Mapper.Map <IEnumerable <BookDto> >(books).ToList();
bookDtoList = bookDtoList.Select(book => CreateLinkForBook(authorId, book)).ToList();
resourceList = new ResourceCollect <BookDto>(bookDtoList);
//MemoryCache.Set(key, bookDtoList);
#pragma warning disable CS1587 // XML 注释没有放在有效语言元素上
/**
* 使用MemoryCacheEntryOptions对象可控制缓存时间和优先级等属性
* 1>. 合理使用有效时间，不仅能确保资源被及时更新，也能使当资源不再使用时，所占用的内存能自动恢复
* 2>. 使用优先级属性，决定了当服务器内存不足时是否先将该项移除，当优先级为低时，将会被先移除。
* 如果不希望缓存项被移除，则应设置Priority属性为CacheItemPriority.NeverRemove。
*/
#pragma warning restore CS1587 // XML 注释没有放在有效语言元素上
MemoryCacheEntryOptions options = new MemoryCacheEntryOptions
{
AbsoluteExpiration = DateTime.Now.AddMinutes(10), // 有效时间为10分钟
Priority = CacheItemPriority.Normal // 优先级为默认
};
MemoryCache.Set(key, resourceList, options);
}
return(resourceList);
}
