diff --git a/service-ai/service-ai-chat/pom.xml b/service-ai/service-ai-chat/pom.xml
index 3e96a43..e2cb1e5 100644
--- a/service-ai/service-ai-chat/pom.xml
+++ b/service-ai/service-ai-chat/pom.xml
@@ -16,11 +16,6 @@
             <groupId>com.lanyuanxiaoyao</groupId>
             <artifactId>service-ai-core</artifactId>
         </dependency>
-        <dependency>
-            <groupId>org.springframework.ai</groupId>
-            <artifactId>spring-ai-starter-model-openai</artifactId>
-            <scope>test</scope>
-        </dependency>
         <dependency>
             <groupId>org.springframework.ai</groupId>
             <artifactId>spring-ai-starter-model-deepseek</artifactId>
diff --git a/service-ai/service-ai-chat/src/main/java/com/lanyuanxiaoyao/service/ai/chat/controller/ChatController.java b/service-ai/service-ai-chat/src/main/java/com/lanyuanxiaoyao/service/ai/chat/controller/ChatController.java
index d910542..369a644 100644
--- a/service-ai/service-ai-chat/src/main/java/com/lanyuanxiaoyao/service/ai/chat/controller/ChatController.java
+++ b/service-ai/service-ai-chat/src/main/java/com/lanyuanxiaoyao/service/ai/chat/controller/ChatController.java
@@ -3,9 +3,10 @@ package com.lanyuanxiaoyao.service.ai.chat.controller;
 import cn.hutool.core.util.ObjectUtil;
 import cn.hutool.core.util.StrUtil;
 import com.lanyuanxiaoyao.service.ai.chat.entity.MessageVO;
-import com.lanyuanxiaoyao.service.ai.chat.tools.DatetimeTools;
 import com.lanyuanxiaoyao.service.forest.service.KnowledgeService;
 import java.io.IOException;
+import java.time.LocalDateTime;
+import java.time.format.DateTimeFormatter;
 import java.util.Optional;
 import org.eclipse.collections.api.list.ImmutableList;
 import org.slf4j.Logger;
@@ -35,6 +36,7 @@ import org.springframework.web.servlet.mvc.method.annotation.SseEmitter;
 @RequestMapping("chat")
 public class ChatController {
   private static final Logger logger = LoggerFactory.getLogger(ChatController.class);
+  private final static DateTimeFormatter formatter = DateTimeFormatter.ofPattern("yyyy-MM-dd HH:mm:ss");
   private static final String ROLE_ASSISTANT = "assistant";
   private static final String ROLE_USER = "user";
 
@@ -48,26 +50,29 @@ public class ChatController {
   }
 
   private ChatClient.ChatClientRequestSpec buildRequest(Long knowledgeId, ImmutableList<MessageVO> messages) {
-    var systemPromptBuilder = new StringBuilder();
-    systemPromptBuilder.append("""
-        你是一名专业的AI运维助手，负责“Hudi数据同步服务平台”的运维工作；
-        你将会友好地帮助用户解答关于该平台运维工作的问题，你会尽可能通过各种方式获取知识和数据来解答；
-        对于无法通过已有知识回答的问题，你会提示用户你无法解答该问题，而不是虚构不存在的数据或答案；
-        对于与该平台无关的问题，你会委婉地拒绝用户，并提示无法回答；
-        你将始终在中文语境下进行对话。
-        """);
+    var builder = StrUtil.builder()
+        .append(StrUtil.format("""
+            你是一名专业的AI运维助手，负责“Hudi数据同步服务平台”的运维工作；
+            你将会友好地帮助用户解答关于该平台运维工作的问题，你会尽可能通过各种方式获取知识和数据来解答；
+            对于无法通过已有知识回答的问题，你会提示用户你无法解答该问题，而不是虚构不存在的数据或答案；
+            对于与该平台无关的问题，你会委婉地拒绝用户，并提示无法回答；
+            你将始终在中文语境下进行对话。
+            当前时间为：{}
+            
+            """, LocalDateTime.now().format(formatter)));
     if (ObjectUtil.isNotNull(knowledgeId)) {
       var vo = messages.select(message -> StrUtil.equals(message.getRole(), "user")).getLastOptional().orElseThrow();
-      var documents = knowledgeService.query(knowledgeId, vo.getContent());
-      logger.info("Knowledge id:{}, content:{}", knowledgeId, vo.getContent());
+      var documents = knowledgeService.query(knowledgeId, vo.getContent(), 0.5);
       if (ObjectUtil.isNotEmpty(documents)) {
-        systemPromptBuilder.append("以下是与用户问题有关的外部知识，优先利用该知识回答用户的提问：\n");
-        systemPromptBuilder.append(documents.makeString("\n"));
+        builder.append(StrUtil.format("""
+            以下是与用户问题有关的外部知识，优先利用该知识回答用户的提问：
+            {}
+            
+            """, documents.makeString("\n")));
       }
     }
     return chatClient.prompt()
-        .system(systemPromptBuilder.toString())
-        .tools(new DatetimeTools())
+        .system(builder.toString())
         .messages(
             messages
                 .collect(message -> StrUtil.equals(message.getRole(), ROLE_ASSISTANT)
diff --git a/service-ai/service-ai-chat/src/main/java/com/lanyuanxiaoyao/service/ai/chat/tools/DatetimeTools.java b/service-ai/service-ai-chat/src/main/java/com/lanyuanxiaoyao/service/ai/chat/tools/DatetimeTools.java
deleted file mode 100644
index 5745b09..0000000
--- a/service-ai/service-ai-chat/src/main/java/com/lanyuanxiaoyao/service/ai/chat/tools/DatetimeTools.java
+++ /dev/null
@@ -1,18 +0,0 @@
-package com.lanyuanxiaoyao.service.ai.chat.tools;
-
-import java.time.LocalDateTime;
-import java.time.format.DateTimeFormatter;
-import org.springframework.ai.tool.annotation.Tool;
-
-/**
- * @author lanyuanxiaoyao
- * @version 20250516
- */
-public class DatetimeTools {
-  private final static DateTimeFormatter formatter = DateTimeFormatter.ofPattern("yyyy-MM-dd HH:mm:ss");
-
-  @Tool(description = "获取当前日期和时间")
-  public String getCurrentDateTime() {
-    return LocalDateTime.now().format(formatter);
-  }
-}
diff --git a/service-ai/service-ai-chat/src/test/java/com/lanyuanxiaoyao/service/ai/chat/TestChat.java b/service-ai/service-ai-chat/src/test/java/com/lanyuanxiaoyao/service/ai/chat/TestChat.java
deleted file mode 100644
index 9939241..0000000
--- a/service-ai/service-ai-chat/src/test/java/com/lanyuanxiaoyao/service/ai/chat/TestChat.java
+++ /dev/null
@@ -1,36 +0,0 @@
-package com.lanyuanxiaoyao.service.ai.chat;
-
-import org.springframework.ai.chat.client.ChatClient;
-import org.springframework.ai.openai.OpenAiChatModel;
-import org.springframework.ai.openai.OpenAiChatOptions;
-import org.springframework.ai.openai.api.OpenAiApi;
-
-/**
- * @author lanyuanxiaoyao
- * @version 20250514
- */
-public class TestChat {
-  public static void main(String[] args) {
-    ChatClient client = ChatClient.builder(
-            OpenAiChatModel.builder()
-                .openAiApi(
-                    OpenAiApi.builder()
-                        .baseUrl("http://132.121.206.65:10086")
-                        .apiKey("*XMySqV%>hR&v>>g*NwCs3tpQ5FVMFEF2VHVTj<MYQd$&@$sY7CgqNyea4giJi4")
-                        .build()
-                )
-                .defaultOptions(
-                    OpenAiChatOptions.builder()
-                        .model("Qwen3-1.7")
-                        .build()
-                )
-                .build()
-        )
-        .build();
-    String content = client.prompt()
-        .user("你好")
-        .call()
-        .content();
-    System.out.println(content);
-  }
-}
diff --git a/service-ai/service-ai-chat/src/test/java/com/lanyuanxiaoyao/service/ai/chat/TestSpringAIToolChat.java b/service-ai/service-ai-chat/src/test/java/com/lanyuanxiaoyao/service/ai/chat/TestSpringAIToolChat.java
new file mode 100644
index 0000000..ce976ea
--- /dev/null
+++ b/service-ai/service-ai-chat/src/test/java/com/lanyuanxiaoyao/service/ai/chat/TestSpringAIToolChat.java
@@ -0,0 +1,86 @@
+package com.lanyuanxiaoyao.service.ai.chat;
+
+import java.net.http.HttpClient;
+import java.time.LocalDateTime;
+import java.time.format.DateTimeFormatter;
+import org.springframework.ai.chat.client.ChatClient;
+import org.springframework.ai.deepseek.DeepSeekChatModel;
+import org.springframework.ai.deepseek.DeepSeekChatOptions;
+import org.springframework.ai.deepseek.api.DeepSeekApi;
+import org.springframework.ai.tool.ToolCallback;
+import org.springframework.ai.tool.definition.ToolDefinition;
+import org.springframework.http.client.JdkClientHttpRequestFactory;
+import org.springframework.http.client.reactive.JdkClientHttpConnector;
+import org.springframework.web.client.RestClient;
+import org.springframework.web.reactive.function.client.WebClient;
+import reactor.core.Disposable;
+
+/**
+ * @author lanyuanxiaoyao
+ * @version 20250514
+ */
+@SuppressWarnings("NullableProblems")
+public class TestSpringAIToolChat {
+  public static void main(String[] args) {
+    ChatClient client = ChatClient.builder(
+            DeepSeekChatModel.builder()
+                .deepSeekApi(
+                    DeepSeekApi.builder()
+                        .baseUrl("http://132.121.206.65:10086/v1")
+                        .apiKey("*XMySqV%>hR&v>>g*NwCs3tpQ5FVMFEF2VHVTj<MYQd$&@$sY7CgqNyea4giJi4")
+                        .restClientBuilder(restClientBuilder())
+                        .webClientBuilder(webClientBuilder())
+                        .build()
+                )
+                .defaultOptions(
+                    DeepSeekChatOptions.builder()
+                        .model("Qwen3-1.7-vllm")
+                        .build()
+                )
+                .build()
+        )
+        .build();
+    ToolCallback datetimeTool = new ToolCallback() {
+      @Override
+      public ToolDefinition getToolDefinition() {
+        return ToolDefinition.builder()
+            .name("getCurrentTime")
+            .description("获取当前日期和时间")
+            // language=JSON
+            .inputSchema("""
+                {"type":  null}
+                """)
+            .build();
+      }
+
+      @Override
+      public String call(String toolInput) {
+        return LocalDateTime.now().format(DateTimeFormatter.ofPattern("yyyy-MM-dd HH:mm:ss"));
+      }
+    };
+    Disposable disposable = client.prompt()
+        .user("当前时间？")
+        .toolCallbacks(datetimeTool)
+        .stream()
+        .content()
+        .subscribe(System.out::println);
+    while (!disposable.isDisposed()) {
+    }
+  }
+
+  private static HttpClient httpClient() {
+    return HttpClient.newBuilder()
+        .version(HttpClient.Version.HTTP_1_1)
+        .build();
+  }
+
+  private static RestClient.Builder restClientBuilder() {
+    return RestClient.builder()
+        .requestFactory(new JdkClientHttpRequestFactory(httpClient()));
+  }
+
+  private static WebClient.Builder webClientBuilder() {
+    return WebClient.builder()
+        .clientConnector(new JdkClientHttpConnector(httpClient()));
+  }
+}
diff --git a/service-forest/src/main/java/com/lanyuanxiaoyao/service/forest/service/KnowledgeService.java b/service-forest/src/main/java/com/lanyuanxiaoyao/service/forest/service/KnowledgeService.java
index c3c8d55..0fc8d11 100644
--- a/service-forest/src/main/java/com/lanyuanxiaoyao/service/forest/service/KnowledgeService.java
+++ b/service-forest/src/main/java/com/lanyuanxiaoyao/service/forest/service/KnowledgeService.java
@@ -18,5 +18,8 @@ public interface KnowledgeService {
     ImmutableList<String> query(@Query("id") Long id, @Body String text);
 
     @Post(value = "/query", contentType = "plain/text")
-    ImmutableList<String> query(@Query("id") Long id, @Query("limit") Integer limit, @Query("threshold") Double threshold, @Body String text);
+    ImmutableList<String> query(@Query("id") Long id, @Body String text, @Query("threshold") Double threshold);
+
+    @Post(value = "/query", contentType = "plain/text")
+    ImmutableList<String> query(@Query("id") Long id, @Body String text, @Query("limit") Integer limit, @Query("threshold") Double threshold);
 }