在 Azure AI 搜索中创建知识库

• 最新的Azure.Search.Documents预览版软件包：dotnet add package Azure.Search.Documents --prerelease

• 最新的azure-search-documents预览版软件包：pip install --pre azure-search-documents

• 搜索服务 REST API 的 2025-11-01 预览版。

运行以下代码，按名称列出现有知识库。

// List knowledge bases by name
  using Azure.Search.Documents.Indexes;

  var indexClient = new SearchIndexClient(new Uri(searchEndpoint), credential);
  var knowledgeBases = indexClient.GetKnowledgeBasesAsync();

  Console.WriteLine("Knowledge Bases:");

  await foreach (var kb in knowledgeBases)
  {
      Console.WriteLine($"  - {kb.Name}");
  }

运行以下代码，按名称列出现有知识库。

# List knowledge bases by name
from azure.core.credentials import AzureKeyCredential
from azure.search.documents.indexes import SearchIndexClient

index_client = SearchIndexClient(endpoint = "search_url", credential = AzureKeyCredential("api_key"))

for kb in index_client.list_knowledge_bases():
    print(f"  - {kb.name}")

使用 知识库 - 列表（REST API） 按名称和类型列出知识库。

# List knowledge bases
GET {{search-url}}/knowledgebases?api-version=2025-11-01-preview&$select=name
Content-Type: application/json
api-key: {{search-api-key}}

using Azure.Search.Documents.Indexes;
using System.Text.Json;

var indexClient = new SearchIndexClient(new Uri(searchEndpoint), credential);

// Specify the knowledge base name to retrieve
string kbNameToGet = "earth-knowledge-base";

// Get a specific knowledge base definition
var knowledgeBaseResponse = await indexClient.GetKnowledgeBaseAsync(kbNameToGet);
var kb = knowledgeBaseResponse.Value;

// Serialize to JSON for display
string json = JsonSerializer.Serialize(kb, new JsonSerializerOptions { WriteIndented = true });
Console.WriteLine(json);

# Get a knowledge base definition
from azure.core.credentials import AzureKeyCredential
from azure.search.documents.indexes import SearchIndexClient
import json

index_client = SearchIndexClient(endpoint = "search_url", credential = AzureKeyCredential("api_key"))

kb = index_client.get_knowledge_base("knowledge_base_name")
print(json.dumps(kb.as_dict(), indent = 2))

# Get knowledge base
GET {{search-url}}/knowledgebases/{{knowledge-base-name}}?api-version=2025-11-01-preview
Content-Type: application/json
api-key: {{search-api-key}}

运行以下代码来创建知识库。

// Create a knowledge base
using Azure.Search.Documents.Indexes;
using Azure.Search.Documents.Indexes.Models;
using Azure.Search.Documents.KnowledgeBases.Models;
using Azure;

var indexClient = new SearchIndexClient(new Uri(searchEndpoint), new AzureKeyCredential(apiKey));

var aoaiParams = new AzureAIservicesVectorizerParameters
{
    ResourceUri = new Uri(aoaiEndpoint),
    DeploymentName = aoaiGptDeployment,
    ModelName = aoaiGptModel
};

var knowledgeBase = new KnowledgeBase(
    name: "my-kb",
    knowledgeSources: new KnowledgeSourceReference[] 
    { 
        new KnowledgeSourceReference("hotels-ks"),
        new KnowledgeSourceReference("earth-at-night-ks")
    }
)
{
    Description = "This knowledge base handles questions directed at two unrelated sample indexes.",
    RetrievalInstructions = "Use the hotels knowledge source for queries about where to stay, otherwise use the earth at night knowledge source.",
    AnswerInstructions = "Provide a two sentence concise and informative answer based on the retrieved documents.",
    OutputMode = KnowledgeRetrievalOutputMode.AnswerSynthesis,
    Models = { new KnowledgeBaseAzureAIservicesModel(AzureAIservicesParameters: aoaiParams) },
    RetrievalReasoningEffort = new KnowledgeRetrievalLowReasoningEffort()
};

await indexClient.CreateOrUpdateKnowledgeBaseAsync(knowledgeBase);
Console.WriteLine($"Knowledge base '{knowledgeBase.Name}' created or updated successfully.");

运行以下代码来创建知识库。

# Create a knowledge base
from azure.core.credentials import AzureKeyCredential
from azure.search.documents.indexes import SearchIndexClient
from azure.search.documents.indexes.models import KnowledgeBase, KnowledgeBaseAzureAIservicesModel, KnowledgeSourceReference, AzureAIservicesVectorizerParameters, KnowledgeRetrievalOutputMode, KnowledgeRetrievalLowReasoningEffort

index_client = SearchIndexClient(endpoint = "search_url", credential = AzureKeyCredential("api_key"))

aoai_params = AzureAIservicesVectorizerParameters(
    resource_url = "aoai_endpoint",
    api_key="aoai_api_key",
    deployment_name = "aoai_gpt_deployment",
    model_name = "aoai_gpt_model",
)

knowledge_base = KnowledgeBase(
    name = "my-kb",
    description = "This knowledge base handles questions directed at two unrelated sample indexes.",
    retrieval_instructions = "Use the hotels knowledge source for queries about where to stay, otherwise use the earth at night knowledge source.",
    answer_instructions = "Provide a two sentence concise and informative answer based on the retrieved documents.",
    output_mode = KnowledgeRetrievalOutputMode.ANSWER_SYNTHESIS,
    knowledge_sources = [
        KnowledgeSourceReference(name = "hotels-ks"),
        KnowledgeSourceReference(name = "earth-at-night-ks"),
    ],
    models = [KnowledgeBaseAzureAIservicesModel(azure_open_ai_parameters = aoai_params)],
    encryption_key = None,
    retrieval_reasoning_effort = KnowledgeRetrievalLowReasoningEffort(),
)

index_client.create_or_update_knowledge_base(knowledge_base)
print(f"Knowledge base '{knowledge_base.name}' created or updated successfully.")

使用 知识库 - 创建或更新 （REST API） 创建知识库。

# Create a knowledge base
PUT {{search-url}}/knowledgebases/{{knowledge-base-name}}?api-version=2025-11-01-preview
Content-Type: application/json
api-key: {{search-api-key}}

{
    "name" : "my-kb",
    "description": "This knowledge base handles questions directed at two unrelated sample indexes.",
    "retrievalInstructions": "Use the hotels knowledge source for queries about where to stay, otherwise use the earth at night knowledge source.",
    "answerInstructions": null,
    "outputMode": "answerSynthesis",
    "knowledgeSources": [
        {
            "name": "hotels-ks"
        },
        {
            "name": "earth-at-night-ks"
        }
    ],
    "models" : [ 
        {
            "kind": "AzureAIservices",
            "AzureAIservicesParameters": {
                "resourceUri": "{{model-provider-url}}",
                "apiKey": "{{model-api-key}}",
                "deploymentId": "gpt-4.1-mini",
                "modelName": "gpt-4.1-mini"
            }
        }
    ],
    "encryptionKey": null,
    "retrievalReasoningEffort": {
        "kind": "low"
    }
}

using Azure.Search.Documents.Indexes;
var indexClient = new SearchIndexClient(new Uri(searchEndpoint), credential);

await indexClient.DeleteKnowledgeBaseAsync(knowledgeBaseName);
System.Console.WriteLine($"Knowledge base '{knowledgeBaseName}' deleted successfully.");

# Delete a knowledge base
from azure.core.credentials import AzureKeyCredential 
from azure.search.documents.indexes import SearchIndexClient

index_client = SearchIndexClient(endpoint = "search_url", credential = AzureKeyCredential("api_key"))
index_client.delete_knowledge_base("knowledge_base_name")
print(f"Knowledge base deleted successfully.")

# Delete a knowledge base
DELETE {{search-url}}/knowledgebases/{{knowledge-base-name}}?api-version=2025-11-01-preview
api-key: {{search-api-key}}