c# - 找不到Elasticsearch NEST建议者解析器

Question

我正在尝试利用Elasticsearch的'Suggester'功能。

使用短语，术语或完成，我总是得到以下错误变化。

unable to parse SuggestionBuilder with name [COMPLETION]: parser not found"
unable to parse SuggestionBuilder with name [TERM]: parser not found"
unable to parse SuggestionBuilder with name [PHRASE]: parser not found"

我尝试了多个6.x NEST版本，但它们都有相同的问题。
升级到7.0alpha1确实会更改该错误，但似乎会导致许多其他问题，因此我宁愿不在生产环境中使用alpha库。

我目前正在关注本教程，并将其应用到现有代码中: https://github.com/elastic/elasticsearch-net-example/tree/6.x-codecomplete-netcore#part-6-suggestions

当前正在使用NEST 6.1

模型:

public class SearchResult {

      public SearchResult()
                {
                    TitleSuggest = new CompletionField {Input = new List<string>(Title.Split(' '))};
                }
                public CompletionField TitleSuggest { get; set; }
        //etc
        }

索引方法:

public async Task<IActionResult> CreateIndex()
        {
            await _searchClient.CreateIndexAsync(SearchIndexName, indexSelector =>
                indexSelector
                    .Mappings(mappingsDescriptor =>
                        mappingsDescriptor.Map<Models.SearchResult>(y => y.AutoMap().Properties(pr=>pr.Completion(c => c.Name(p => p.TitleSuggest)
                        ))))

建议方法:

public async Task<ISearchResponse<SearchResult>> Suggest(string keyword)
        {
return await _searchClient.SearchAsync<SearchResult>(
                s =>
                        s.Suggest(ss => ss
                            .Completion("title", cs => cs
                                .Field(f => f.TitleSuggest)
                                .Prefix(keyword)
                                .Fuzzy(f => f
                                    .Fuzziness(Fuzziness.Auto)
                                )
                                .Size(5))
}

我很难理解该错误。
似乎NEST库缺少Suggester解析器？
任何帮助将是巨大的，谢谢!

Answer 1

var searchResponse = await _searchClient.SearchAsync<SearchResult>(s => s
                .Index(ConfigurationManager.AppSettings.Get("index"))
                .Type(ConfigurationManager.AppSettings.Get("indextype"))
                .Suggest(su => su
                    .Completion("suggest", cs => cs
                        .Size(20)
                        .Field(f => f.TitleSuggest)
                        .Fuzzy(f => f
                                .Fuzziness(Fuzziness.Auto))
                        .Size(5))));

希望它能奏效让我知道您是否仍然遇到任何问题。