diff --git a/src/main/java/com/kimgo/wepush/common/JsonConverter.java b/src/main/java/com/kimgo/wepush/common/JsonConverter.java
new file mode 100644
index 0000000..0e6ec4f
--- /dev/null
+++ b/src/main/java/com/kimgo/wepush/common/JsonConverter.java
@@ -0,0 +1,22 @@
+package com.kimgo.wepush.common;
+
+import com.fasterxml.jackson.core.JsonProcessingException;
+import com.fasterxml.jackson.databind.ObjectMapper;
+
+public class JsonConverter<T> {
+
+    private final ObjectMapper objectMapper;
+
+    public JsonConverter () {
+        this.objectMapper = new ObjectMapper();
+    }
+
+    // 将对象序列化为 JSON 字符串
+    public String serialize(T object) throws JsonProcessingException {
+        return objectMapper.writeValueAsString(object);
+    }
+    // 将 JSON 字符串反序列化为对象
+    public T deserialize(String json, Class<T> clazz) throws JsonProcessingException {
+        return objectMapper.readValue(json, clazz);
+    }
+}
diff --git a/src/main/java/com/kimgo/wepush/request/Request.java b/src/main/java/com/kimgo/wepush/request/Request.java
deleted file mode 100644
index d99c25d..0000000
--- a/src/main/java/com/kimgo/wepush/request/Request.java
+++ /dev/null
@@ -1,57 +0,0 @@
-package com.kimgo.wepush.request;
-
-import com.fasterxml.jackson.core.JsonProcessingException;
-import com.fasterxml.jackson.databind.ObjectMapper;
-import com.kimgo.wepush.response.QyWeChatSendMessageApiResponse;
-import okhttp3.MediaType;
-import okhttp3.OkHttpClient;
-import okhttp3.RequestBody;
-import okhttp3.Response;
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
-import java.io.IOException;
-
-public class Request {
-    private final Logger logger = LoggerFactory.getLogger(Request.class);
-
-    public <T> QyWeChatSendMessageApiResponse okhttpRequest(String url,String accessToken,T object){
-        OkHttpClient client = new OkHttpClient();
-
-        // 使用Jackson进行序列化
-        ObjectMapper objectMapper = new ObjectMapper();
-        String jsonBody = null;
-        try {
-            jsonBody = objectMapper.writeValueAsString(object);
-            logger.info("jsonBody: {}",jsonBody);
-        } catch (JsonProcessingException e) {
-            logger.error("JSON processing error", e);
-            return null;
-        }
-        // 构建请求体
-        RequestBody body = RequestBody.create(MediaType.parse("application/json; charset=utf-8"), jsonBody);
-        okhttp3.Request request = new okhttp3.Request.Builder().url(url).post(body).build();
-        try (Response response = client.newCall(request).execute()) {
-            String responseBody = response.body().string();
-            logger.info("request sendMessage api ResponseBody: {}", responseBody);
-
-            ObjectMapper objectMapper1 = new ObjectMapper();
-            QyWeChatSendMessageApiResponse apiResponse = objectMapper1.readValue(responseBody, QyWeChatSendMessageApiResponse.class);
-
-            if (apiResponse.getErrcode() == 0) {
-                logger.debug("Request qyWeChat Success.");
-                return apiResponse;
-            } else if (apiResponse.getErrcode() == 42001 || apiResponse.getErrcode() == 40014) {
-                logger.info("Access token expired. Refreshing token...");
-                // 一个方法来刷新accessToken
-                return apiResponse;
-            } else {
-                // 处理其他错误情况
-                logger.error("Error: {}", apiResponse.getErrmsg());
-                return null;
-            }
-        } catch (IOException e) {
-            logger.error("OkHttp request error", e);
-            return null;
-        }
-    }
-}
diff --git a/src/main/java/com/kimgo/wepush/request/SendQyWeChatMsgRequest.java b/src/main/java/com/kimgo/wepush/request/SendQyWeChatMsgRequest.java
new file mode 100644
index 0000000..9b07faf
--- /dev/null
+++ b/src/main/java/com/kimgo/wepush/request/SendQyWeChatMsgRequest.java
@@ -0,0 +1,78 @@
+package com.kimgo.wepush.request;
+
+import com.fasterxml.jackson.core.JsonProcessingException;
+import com.fasterxml.jackson.databind.ObjectMapper;
+import com.kimgo.wepush.common.JsonConverter;
+import com.kimgo.wepush.response.QyWeChatSendMessageApiResponse;
+import com.kimgo.wepush.service.TokenService;
+import okhttp3.MediaType;
+import okhttp3.OkHttpClient;
+import okhttp3.RequestBody;
+import okhttp3.Response;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import java.io.IOException;
+
+public class SendQyWeChatMsgRequest {
+    private final Logger logger = LoggerFactory.getLogger(SendQyWeChatMsgRequest.class);
+    private final OkHttpClient client = new OkHttpClient();
+    private final TokenService tokenService;
+    private final JsonConverter<Object> jsonConverter = new JsonConverter<>();
+
+    public SendQyWeChatMsgRequest(TokenService tokenService) {
+        this.tokenService = tokenService;
+    }
+
+    public <T> QyWeChatSendMessageApiResponse okhttpRequest(String baseurl, String accessToken, T object) {
+        int retryCount = 0;
+        final int maxRetries = 2;
+
+        while (retryCount <= maxRetries) {
+            String url = baseurl + "?access_token=" + accessToken;
+            // 使用Jackson进行序列化
+            String jsonBody;
+            try {
+                jsonBody = jsonConverter.serialize(object);
+            } catch (JsonProcessingException e) {
+                return new QyWeChatSendMessageApiResponse(-1, "json serialization exception");
+            }
+            // 构建请求体
+            MediaType mediaType = MediaType.parse("application/json; charset=utf-8");
+            RequestBody body = RequestBody.create(jsonBody, mediaType);
+
+            okhttp3.Request request = new okhttp3.Request.Builder().url(url).post(body).build();
+            try (Response response = client.newCall(request).execute()) {
+                String responseBody = null;
+                if (response.body() != null) {
+                    responseBody = response.body().string();
+                }
+                logger.info("request sendMessage api ResponseBody: {}", responseBody);
+
+                ObjectMapper objectMapper1 = new ObjectMapper();
+                QyWeChatSendMessageApiResponse apiResponse = objectMapper1.readValue(responseBody, QyWeChatSendMessageApiResponse.class);
+
+                if (apiResponse.getErrcode() == 0) {
+                    logger.debug("Request qyWeChat Success.");
+                    return apiResponse;
+                } else if (apiResponse.getErrcode() == 42001 || apiResponse.getErrcode() == 40014) {
+                    logger.info("Access token expired. Refreshing token...");
+                    // 刷新accessToken
+                    tokenService.setAccessToken();
+                    accessToken = tokenService.getAccessToken();
+                    retryCount++;
+                } else {
+                    // 处理成功或其他错误情况
+                    return apiResponse;
+                }
+            } catch (IOException e) {
+                logger.error("OkHttp request error", e);
+                if (retryCount >= maxRetries) {
+                    return new QyWeChatSendMessageApiResponse(-1,"the maximum number of attempts exceeded");
+                }
+                retryCount++;
+            }
+        }
+        return new QyWeChatSendMessageApiResponse(-1,"request error.");
+    }
+}
diff --git a/src/main/java/com/kimgo/wepush/response/QyWeChatSendMessageApiResponse.java b/src/main/java/com/kimgo/wepush/response/QyWeChatSendMessageApiResponse.java
index f6bf741..5f4dad9 100644
--- a/src/main/java/com/kimgo/wepush/response/QyWeChatSendMessageApiResponse.java
+++ b/src/main/java/com/kimgo/wepush/response/QyWeChatSendMessageApiResponse.java
@@ -7,4 +7,9 @@ public class QyWeChatSendMessageApiResponse {
     private int errcode;
     private String errmsg;
     private String msgid;
+
+    public QyWeChatSendMessageApiResponse(int errcode, String errmsg) {
+        this.errcode = errcode;
+        this.errmsg = errmsg;
+    }
 }
\ No newline at end of file
diff --git a/src/main/java/com/kimgo/wepush/service/MonitorService.java b/src/main/java/com/kimgo/wepush/service/MonitorService.java
index 1a0ff70..1b42196 100644
--- a/src/main/java/com/kimgo/wepush/service/MonitorService.java
+++ b/src/main/java/com/kimgo/wepush/service/MonitorService.java
@@ -5,7 +5,7 @@ import com.baomidou.mybatisplus.core.conditions.update.UpdateWrapper;
 import com.kimgo.wepush.mapper.DeviceInfoDAOMapper;
 import com.kimgo.wepush.model.DeviceInfoDAO;
 import com.kimgo.wepush.model.TextCardMessage;
-import com.kimgo.wepush.request.Request;
+import com.kimgo.wepush.request.SendQyWeChatMsgRequest;
 import com.kimgo.wepush.response.QyWeChatSendMessageApiResponse;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
@@ -81,10 +81,11 @@ public class MonitorService {
 
 
     private void sendNotification(DeviceInfoDAO deviceInfoDAO){
-        Request request = new Request();
+        SendQyWeChatMsgRequest sendQyWeChatMsgRequest = new SendQyWeChatMsgRequest(tokenService);
         String accessToken = tokenService.getAccessToken();
-        String url = qyWeChatURLService.getSendTextCardMessageUrl() + "?access_token=" + accessToken;
-        QyWeChatSendMessageApiResponse qyWeChatSendMessageApiResponse = request.okhttpRequest(url,accessToken,setTextCardMessage(deviceInfoDAO));
+        String url = qyWeChatURLService.getSendTextCardMessageUrl();
+        QyWeChatSendMessageApiResponse qyWeChatSendMessageApiResponse = sendQyWeChatMsgRequest.okhttpRequest(url,
+                accessToken,setTextCardMessage(deviceInfoDAO));
         if (qyWeChatSendMessageApiResponse ==null){
             logger.info("Send Notification Fail");
         }