优化了提示词

backend/app/engine/18时33分46秒_副本_index.py

@@ -0,0 +1,22 @@
+import logging
+from llama_index.core.indices import VectorStoreIndex
+from app.engine.vectordb import get_vector_store
+
+
+logger = logging.getLogger("uvicorn")
+
+index = None
+
+def get_index(params=None):
+    global index
+    if index is None:
+        logger.info("Connecting vector store...")
+
+        store = get_vector_store()
+        # Load the index from the vector store
+        # If you are using a vector store that doesn't store text,
+        # you must load the index from both the vector store and the document store
+        index = VectorStoreIndex.from_vector_store(store)
+        logger.info("Finished load index from vector store.")
+
+    return index