fix: 修复"openai_api_type=azure"时，知识库索引构建失败的问题 (#1158)

modules/index_func.py

@@ -1,16 +1,10 @@
-import hashlib
-import logging
-import os
-
 import PyPDF2
-from langchain_community.chat_models import ChatOpenAI
 from langchain_community.embeddings.huggingface import HuggingFaceEmbeddings
 from langchain_community.vectorstores import FAISS
-from langchain_openai import OpenAIEmbeddings
+from langchain_openai import OpenAIEmbeddings, AzureOpenAIEmbeddings
 from tqdm import tqdm
 
 from modules.config import local_embedding
-from modules.presets import *
 from modules.utils import *
 
 
@@ -144,11 +138,11 @@ def construct_index(
  model="text-embedding-3-large",
  )
  else:
- embeddings = OpenAIEmbeddings(
+ embeddings = AzureOpenAIEmbeddings(
  deployment=os.environ["AZURE_EMBEDDING_DEPLOYMENT_NAME"],
  openai_api_key=os.environ["AZURE_OPENAI_API_KEY"],
  model=os.environ["AZURE_EMBEDDING_MODEL_NAME"],
- openai_api_base=os.environ["AZURE_OPENAI_API_BASE_URL"],
+ azure_endpoint=os.environ["AZURE_OPENAI_API_BASE_URL"],
  openai_api_type="azure",
  )
  if os.path.exists(index_path) and load_from_cache_if_possible: