diff --git a/dsSchoolBuddy/ElasticSearch/T6_SelectByVector.py b/dsSchoolBuddy/ElasticSearch/T6_SelectByVector.py
index 29f08e24..368099f0 100644
--- a/dsSchoolBuddy/ElasticSearch/T6_SelectByVector.py
+++ b/dsSchoolBuddy/ElasticSearch/T6_SelectByVector.py
@@ -1,13 +1,11 @@
 import json
 import warnings
-
 import requests
-from elasticsearch import Elasticsearch
 from langchain_openai import OpenAIEmbeddings
 from pydantic import SecretStr
 
 from Config import Config
-from Config.Config import ES_CONFIG
+from ElasticSearch.Utils.EsSearchUtil import EsSearchUtil
 
 # 抑制HTTPS相关警告
 warnings.filterwarnings('ignore', message='Connecting to .* using TLS with verify_certs=False is insecure')
@@ -19,20 +17,6 @@ RERANK_BASE_URL = Config.RERANK_BASE_URL
 RERANK_BINDING_API_KEY = Config.RERANK_BINDING_API_KEY
 
 
-def init_es_connection() -> Elasticsearch:
-    """
-    初始化Elasticsearch连接
-
-    返回:
-        Elasticsearch: ES连接对象
-    """
-    return Elasticsearch(
-        hosts=Config.ES_CONFIG['hosts'],
-        basic_auth=Config.ES_CONFIG['basic_auth'],
-        verify_certs=False
-    )
-
-
 def get_query_embedding(query: str) -> list:
     """
     将查询文本转换为向量
@@ -55,42 +39,47 @@ def get_query_embedding(query: str) -> list:
     return query_embedding
 
 
-def search_by_vector(es: Elasticsearch, index_name: str, query_embedding: list, k: int = 10) -> list:
+def search_by_vector(search_util: EsSearchUtil, query_embedding: list, k: int = 10) -> list:
     """
     在Elasticsearch中按向量搜索
 
     参数:
-        es: ES连接对象
-        index_name: 索引名称
+        search_util: EsSearchUtil实例
         query_embedding: 查询向量
         k: 返回结果数量
 
     返回:
         list: 搜索结果
     """
-    # 构建向量查询DSL
-    query = {
-        "query": {
-            "script_score": {
-                "query": {"match_all": {}},
-                "script": {
-                    "source": "cosineSimilarity(params.query_vector, 'embedding') + 1.0",
-                    "params": {
-                        "query_vector": query_embedding
+    # 从连接池获取连接
+    conn = search_util.es_pool.get_connection()
+
+    try:
+        # 构建向量查询DSL
+        query = {
+            "query": {
+                "script_score": {
+                    "query": {"match_all": {}},
+                    "script": {
+                        "source": "cosineSimilarity(params.query_vector, 'embedding') + 1.0",
+                        "params": {
+                            "query_vector": query_embedding
+                        }
                     }
                 }
-            }
-        },
-        "size": k
-    }
+            },
+            "size": k
+        }
 
-    # 执行查询
-    try:
-        response = es.search(index=index_name, body=query)
+        # 执行查询
+        response = conn.search(index=search_util.es_config['index_name'], body=query)
         return response['hits']['hits']
     except Exception as e:
         print(f"向量查询失败: {e}")
         return []
+    finally:
+        # 释放连接回连接池
+        search_util.es_pool.release_connection(conn)
 
 
 def rerank_results(query: str, results: list) -> list:
@@ -162,14 +151,14 @@ def display_results(results: list) -> None:
         print(f"{i}. ID: {result['_id']}")
         print(f"   相似度分数: {score:.4f}")
         print(f"   内容: {source.get('user_input', '')}")
-        print(f"   标签: {source['tags']['tags']}")
-        print(f"   时间: {source['timestamp']}")
+        print(f"   标签: {source['tags']['tags'] if 'tags' in source and 'tags' in source['tags'] else '无'}")
+        print(f"   时间: {source['timestamp'] if 'timestamp' in source else '无'}")
         print("-" * 50)
 
 
 def main():
-    # 初始化ES连接
-    es = init_es_connection()
+    # 创建EsSearchUtil实例（已封装连接池）
+    search_util = EsSearchUtil(Config.ES_CONFIG)
 
     # 获取用户输入
     query_text = input("请输入查询关键词(例如: 高性能的混凝土): ")
@@ -183,7 +172,7 @@ def main():
 
     # 执行向量搜索
     print("正在执行向量搜索...")
-    search_results = search_by_vector(es, ES_CONFIG['index_name'], query_embedding, k=10)
+    search_results = search_by_vector(search_util, query_embedding, k=10)
     print(f"向量搜索结果数量: {len(search_results)}")
 
     # 重排结果