Dataverse 搜索查询

此示例来自 GitHub 上的 SDK for .NET 搜索操作示例 。 静态 OutputSearchQuery 方法接受 搜索参数的值。

/// <summary>
/// Demonstrate query API
/// </summary>
/// <param name="service">The authenticated IOrganizationService instance to use.</param>
/// <param name="searchTerm">The term to search for</param>
/// <returns></returns>
static void OutputSearchQuery(IOrganizationService service, string searchTerm)
{
    Console.WriteLine("OutputSearchQuery START\n");

    searchqueryRequest request = new() { 
        search = searchTerm,
        count = true,
        top = 7,
        entities = JsonConvert.SerializeObject(new List<SearchEntity>()
        {
            new SearchEntity()
            {
                Name = "account",
                SelectColumns = new List<string>() { "name", "createdon" },
                SearchColumns = new List<string>() { "name" },
                Filter = "statecode eq 0"
            },
            new SearchEntity()
            {
                Name = "contact",
                SelectColumns = new List<string>() { "fullname", "createdon" },
                SearchColumns = new List<string>() { "fullname" },
                Filter = "statecode eq 0"
            }
        }),
        orderby = JsonConvert.SerializeObject(new List<string>() { "createdon desc" }),
        filter = "createdon gt 2022-08-15"

    };
    
    var searchqueryResponse = (searchqueryResponse)service.Execute(request);

    var queryResults = JsonConvert.DeserializeObject<SearchQueryResults>(searchqueryResponse.response);
  

    Console.WriteLine($"\tCount:{queryResults.Count}");
    Console.WriteLine("\tValue:");
    queryResults.Value.ForEach(result =>
    {

        Console.WriteLine($"\t\tId:{result.Id}");
        Console.WriteLine($"\t\tEntityName:{result.EntityName}");
        Console.WriteLine($"\t\tObjectTypeCode:{result.ObjectTypeCode}");
        Console.WriteLine("\t\tAttributes:");
        foreach (string key in result.Attributes.Keys)
        {
            Console.WriteLine($"\t\t\t{key}:{result.Attributes[key]}");
        }
        Console.WriteLine("\t\tHighlights:");
        foreach (string key in result.Highlights.Keys)
        {
            Console.WriteLine($"\t\t\t{key}:");

            foreach (string value in result.Highlights[key])
            {
                Console.WriteLine($"\t\t\t\t{value}:");
            }
        }
        Console.WriteLine($"\t\tScore:{result.Score}\n");

    });
    Console.WriteLine("OutputSearchQuery END\n");
}

输出

使用经过身份验证的ServiceClient类实例调用OutputSearchQuery方法，并在调用过程中将searchTerm设为“Contoso”时：

OutputSearchQuery(service: serviceClient, searchTerm: "Contoso");

输出与下面类似：

OutputSearchQuery START

        Count:1
        Value:
                Id:8b35eda1-ef69-ee11-9ae7-000d3a88a4a2
                EntityName:account
                ObjectTypeCode:0
                Attributes:
                        @search.objecttypecode:1
                        name:Contoso Pharmaceuticals (sample)
                        createdon:10/13/2023 5:41:21 PM
                        createdon@OData.Community.Display.V1.FormattedValue:10/13/2023 5:41 PM
                Highlights:
                        name:
                                {crmhit}Contoso{/crmhit} Pharmaceuticals (sample):
                Score:4.986711

OutputSearchQuery END

辅助类

该方法 OutputSearchQuery 取决于以下支持类来发送请求并处理结果：

searchqueryRequest 和 searchqueryResponse 类

使用 Power Platform CLI 下的 pac modelbuilder build 命令生成这些类，如 生成适用于 .NET 的 SDK 早期绑定类中所述。

SearchEntity 类

使用此类撰写 SearchEntity 类型 数据。

public sealed class SearchEntity
{
    /// <summary>
    /// Gets or sets the logical name of the table. Specifies scope of the query.
    /// </summary>
    [DataMember(Name = "name", IsRequired = true)]
    public string Name { get; set; }

    /// <summary>
    /// Gets or sets the list of columns that needs to be projected when table documents are returned in response. 
    /// If empty, only PrimaryName will be returned.
    /// </summary>
    [DataMember(Name = "selectcolumns")]
    public List<string> SelectColumns { get; set; }

    /// <summary>
    /// Gets or sets the list of columns to scope the query on.
    /// If empty, only PrimaryName will be searched on. 
    /// </summary>
    [DataMember(Name = "searchcolumns")]
    public List<string> SearchColumns { get; set; }

    /// <summary>
    /// Gets or sets the filters applied on the entity.
    /// </summary>
    [DataMember(Name = "filter")]
    public string Filter { get; set; }
}

SearchQueryResults 类

使用此类从 searchqueryResponse.response 字符串属性反序列化 JSON 数据。

public sealed class SearchQueryResults
{
    /// <summary>
    /// Provides error information from Azure Cognitive search.
    /// </summary>
    public ErrorDetail? Error { get; set; }

    /// <summary>
    /// A collection of matching records.
    /// </summary>
    public List<QueryResult>? Value { get; set; }

    /// <summary>
    /// If facets were requested in the query, a dictionary of facet values.
    /// </summary>
    public Dictionary<string, IList<FacetResult>>? Facets { get; set; }

    /// <summary>
    /// The query context returned as part of response. This property is used for backend search. It is included for future feature releases and is not currently used.
    /// </summary>
    public QueryContext? QueryContext { get; set; }

    /// <summary>
    /// If `"Count": true` is included in the body of the request, the count of all documents that match the search, ignoring top and skip.
    /// </summary>
    public long Count { get; set; }
}

ErrorDetail 类

使用此类反序列化 ErrorDetail 数据。

public sealed class ErrorDetail
{
    /// <summary>
    /// Gets or sets the error code.
    /// </summary>
    [DataMember(Name = "code")]
    public string Code { get; set; }

    /// <summary>
    /// Gets or sets the error message.
    /// </summary>
    [DataMember(Name = "message")]
    public string Message { get; set; }

    /// <summary>
    /// Gets or sets additional error information.
    /// </summary>
    [DataMember(Name = "propertybag")]
    public Dictionary<string, object> PropertyBag { get; set; }
}

QueryResult 类

使用此类反序列化 QueryResult 数据。

public sealed class QueryResult
{
    /// <summary>
    /// Gets or sets the identifier of the record
    /// </summary>
    public string Id { get; set; }

    /// <summary>
    /// Gets or sets the logical name of the table
    /// </summary>
    public string EntityName { get; set; }

    /// <summary>
    /// Gets or sets the object type code
    /// </summary>
    public int ObjectTypeCode { get; set; }

    /// <summary>
    /// Gets or sets the record attributes
    /// </summary>
    public Dictionary<string, object> Attributes { get; set; }

    /// <summary>
    /// Gets or sets the highlights
    /// </summary>
    public Dictionary<string, string[]> Highlights { get; set; }

    // Gets or sets the document score
    public double Score { get; set; }
}

FacetResult 类

使用此类反序列化 FacetResult 数据。

public sealed class FacetResult
{
    /// <summary>
    /// Gets or sets the count of documents falling within the bucket described by this facet.
    /// </summary>
    [DataMember(Name = "count")]
    public long? Count { get; set; }

    /// <summary>
    /// Gets or sets value indicating the inclusive lower bound of the facet's range, or null to indicate that there is no lower bound.
    /// </summary>
    [DataMember(Name = "from")]
    public object From { get; set; }

    /// <summary>
    /// Gets or sets value indicating the exclusive upper bound of the facet's range, or null to indicate that there is no upper bound.
    /// </summary>
    [DataMember(Name = "to")]
    public object To { get; set; }

    /// <summary>
    /// Gets or sets type of the facet - Value or Range.
    /// </summary>
    [DataMember(Name = "type")]
    public FacetType Type { get; set; }

    /// <summary>
    /// Gets or sets value of the facet, or the inclusive lower bound if it's an interval facet.
    /// </summary>
    [DataMember(Name = "value")]
    public object Value { get; set; }

    /// <summary>
    /// Gets or sets additional/ Optional value of the facet, will be populated while faceting on lookups.
    /// </summary>
    [DataMember(Name = "optionalvalue")]
    public object OptionalValue { get; set; }
}

FacetType 类

指定分面查询结果的类型。

public enum FacetType
{
    /// <summary>
    /// The facet counts documents with a particular field value.
    /// </summary>
    [EnumMember(Value = "value")]
    Value = 0,

    /// <summary>
    /// The facet counts documents with a field value in a particular range.
    /// </summary>
    [EnumMember(Value = "range")]
    Range = 1,
}

QueryContext 类

使用此类反序列化 QueryContext 数据。

public sealed class QueryContext
{
    /// <summary>
    /// Gets or sets the query string as specified in the request.
    /// </summary>
    [DataMember(Name = "originalquery")]
    public string OriginalQuery { get; set; }

    /// <summary>
    /// Gets or sets the query string that Dataverse search used to perform the query. 
    /// Dataverse search uses the altered query string if the original query string contained spelling mistakes or did not yield optimal results.
    /// </summary>
    [DataMember(Name = "alteredquery")]
    public string AlteredQuery { get; set; }

    /// <summary>
    /// Gets or sets the reason behind query alter decision by Dataverse search.
    /// </summary>
    [DataMember(Name = "reason")]
    public List<string> Reason { get; set; }

    /// <summary>
    /// Gets or sets the spell suggestion that are the likely words that represent user's intent. 
    /// This will be populated only when the query was altered by Dataverse search due to spell check.
    /// </summary>
    [DataMember(Name = "spellsuggestions")]
    public List<string> SpellSuggestions { get; set; }
}

使用 searchquery 操作 以接收 searchqueryResponse 复合类型。

此示例来自 GitHub 上的 Web API 搜索操作示例 。

传递给字符串 entities 参数的格式化 JSON 如下所示：

[
  {
    "Name": "account",
    "SelectColumns": [
      "name",
      "createdon"
    ],
    "SearchColumns": [
      "name"
    ],
    "Filter": "statecode eq 0"
  },
  {
    "Name": "contact",
    "SelectColumns": [
      "fullname",
      "createdon"
    ],
    "SearchColumns": [
      "fullname"
    ],
    "Filter": "statecode eq 0"
  }
]

请求

POST [Organization Uri]/api/data/v9.2/searchquery
OData-MaxVersion: 4.0
OData-Version: 4.0
If-None-Match: null
Accept: application/json
Content-Type: application/json; charset=utf-8
Content-Length: 471

{
  "top": 7,
  "search": "Contoso",
  "skip": 0,
  "entities": "[{\"Name\":\"account\",\"SelectColumns\":[\"name\",\"createdon\"],\"SearchColumns\":[\"name\"],\"Filter\":\"statecode eq 0\"},{\"Name\":\"contact\",\"SelectColumns\":[\"fullname\",\"createdon\"],\"SearchColumns\":[\"fullname\"],\"Filter\":\"statecode eq 0\"}]",
  "orderby": "[\"createdon desc\"]",
  "filter": "createdon gt 2022-08-15",
  "count": true,
  "options": "null",
  "facets": "null"
}

响应

HTTP/1.1 200 OK
OData-Version: 4.0

{
  "@odata.context": "[Organization Uri]/api/data/v9.2/$metadata#Microsoft.Dynamics.CRM.searchqueryResponse",
  "response": "{\"Error\":null,\"Value\":[{\"Id\":\"8b35eda1-ef69-ee11-9ae7-000d3a88a4a2\",\"EntityName\":\"account\",\"ObjectTypeCode\":0,\"Attributes\":{\"@search.objecttypecode\":1,\"name\":\"Contoso Pharmaceuticals (sample)\",\"createdon\":\"2023-10-13T17:41:21Z\",\"createdon@OData.Community.Display.V1.FormattedValue\":\"10/13/2023 5:41 PM\"},\"Highlights\":{\"name\":[\"{crmhit}Contoso{/crmhit} Pharmaceuticals (sample)\"]},\"Score\":4.95567}],\"Facets\":{},\"QueryContext\":null,\"Count\":1}"
}

字符串 response 属性的格式 JSON 值如下所示：

{
  "Error": null,
  "Value": [
    {
      "Id": "8b35eda1-ef69-ee11-9ae7-000d3a88a4a2",
      "EntityName": "account",
      "ObjectTypeCode": 0,
      "Attributes": {
        "@search.objecttypecode": 1,
        "name": "Contoso Pharmaceuticals (sample)",
        "createdon": "2023-10-13T17:41:21Z",
        "createdon@OData.Community.Display.V1.FormattedValue": "10/13/2023 5:41 PM"
      },
      "Highlights": {
        "name": [
          "{crmhit}Contoso{/crmhit} Pharmaceuticals (sample)"
        ]
      },
      "Score": 4.95567
    }
  ],
  "Facets": {},
  "QueryContext": null,
  "Count": 1
}

来自终结点的请求参数和响应 search/v2.0/query 与 Web API 相同。 只有 URL 不同。

请求 URL

POST [Organization Uri]/api/search/v2.0/query