diff --git a/src/main/java/com/hotlcc/wechat4j/Wechat.java b/src/main/java/com/hotlcc/wechat4j/Wechat.java
index 95ed37b..e490d41 100644
--- a/src/main/java/com/hotlcc/wechat4j/Wechat.java
+++ b/src/main/java/com/hotlcc/wechat4j/Wechat.java
@@ -6,10 +6,7 @@ import com.hotlcc.wechat4j.api.WebWeixinApi;
 import com.hotlcc.wechat4j.enums.*;
 import com.hotlcc.wechat4j.handler.ExitEventHandler;
 import com.hotlcc.wechat4j.handler.ReceivedMsgHandler;
-import com.hotlcc.wechat4j.model.BaseRequest;
-import com.hotlcc.wechat4j.model.ReceivedMsg;
-import com.hotlcc.wechat4j.model.UserInfo;
-import com.hotlcc.wechat4j.model.WxMessage;
+import com.hotlcc.wechat4j.model.*;
 import com.hotlcc.wechat4j.util.*;
 import org.apache.http.HttpException;
 import org.apache.http.HttpRequest;
@@ -17,6 +14,7 @@ import org.apache.http.HttpRequestInterceptor;
 import org.apache.http.client.CookieStore;
 import org.apache.http.client.HttpClient;
 import org.apache.http.cookie.Cookie;
+import org.apache.http.entity.ContentType;
 import org.apache.http.impl.client.BasicCookieStore;
 import org.apache.http.impl.client.HttpClients;
 import org.apache.http.protocol.HttpContext;
@@ -1104,9 +1102,11 @@ public class Wechat {
     /**
      * 发送文本消息
      *
+     * @param userName
+     * @param content
      * @return
      */
-    public JSONObject sendText(String content, String userName) {
+    public JSONObject sendText(String userName, String content) {
         BaseRequest baseRequest = new BaseRequest(wxsid, skey, wxuin);
 
         String msgId = WechatUtil.createMsgId();
@@ -1131,11 +1131,11 @@ public class Wechat {
     /**
      * 发送文本消息（根据昵称）
      *
-     * @param content
      * @param nickName
+     * @param content
      * @return
      */
-    public JSONObject sendTextToNickName(String content, String nickName) {
+    public JSONObject sendTextToNickName(String nickName, String content) {
         if (StringUtil.isEmpty(nickName)) {
             return sendText(content, null);
         }
@@ -1156,11 +1156,11 @@ public class Wechat {
     /**
      * 发送文本消息（根据备注名）
      *
-     * @param content
      * @param remarkName
+     * @param content
      * @return
      */
-    public JSONObject sendTextToRemarkName(String content, String remarkName) {
+    public JSONObject sendTextToRemarkName(String remarkName, String content) {
         if (StringUtil.isEmpty(remarkName)) {
             return sendText(content, null);
         }
@@ -1181,13 +1181,13 @@ public class Wechat {
     /**
      * 发送文本消息（根据多种名称）
      *
-     * @param content
      * @param userName
      * @param nickName
      * @param remarkName
+     * @param content
      * @return
      */
-    public JSONObject sendText(String content, String userName, String nickName, String remarkName) {
+    public JSONObject sendText(String userName, String nickName, String remarkName, String content) {
         UserInfo userInfo = null;
 
         if (StringUtil.isNotEmpty(userName)) {
@@ -1211,15 +1211,196 @@ public class Wechat {
         return sendText(content, userName);
     }
 
-    //TODO 待完成
-    @Deprecated
-    public JSONObject sendImage(File image, String userName) {
+    /**
+     * 发送图片消息
+     *
+     * @param userName
+     * @param mediaData
+     * @param mediaName
+     * @param contentType
+     * @return
+     */
+    public JSONObject sendImage(String userName, byte[] mediaData, String mediaName, ContentType contentType) {
         String loginUserName = getLoginUserName(false);
         String toUserName = StringUtil.isEmpty(userName) ? loginUserName : userName;
         BaseRequest baseRequest = new BaseRequest(wxsid, skey, wxuin);
-        String dataTicket = getCookieValue("webwx_data_ticket");
 
-        JSONObject result = webWeixinApi.uploadMedia(httpClient, urlVersion, passTicket, baseRequest, loginUserName, toUserName, dataTicket, image);
+        // 上传媒体文件
+        String dataTicket = getCookieValue("webwx_data_ticket");
+        JSONObject result = webWeixinApi.uploadMedia(httpClient, urlVersion, passTicket, baseRequest, loginUserName, toUserName, dataTicket, mediaData, mediaName, contentType);
+        if (result == null) {
+            return null;
+        }
+        JSONObject BaseResponse = result.getJSONObject("BaseResponse");
+        if (BaseResponse == null) {
+            return result;
+        }
+        int Ret = BaseResponse.getIntValue("Ret");
+        if (Ret != 0) {
+            return result;
+        }
+
+        String MediaId = result.getString("MediaId");
+        if (StringUtil.isEmpty(MediaId)) {
+            return result;
+        }
+
+        // 发送图片消息
+        String msgId = WechatUtil.createMsgId();
+        MediaMessage message = new MediaMessage();
+        message.setClientMsgId(msgId);
+        message.setContent("");
+        message.setFromUserName(loginUserName);
+        message.setLocalID(msgId);
+        message.setMediaId(MediaId);
+        message.setToUserName(toUserName);
+        message.setType(MsgTypeEnum.IMAGE_MSG.getCode());
+        result = webWeixinApi.sendImageMsg(httpClient, urlVersion, passTicket, baseRequest, message);
+
         return result;
     }
+
+    /**
+     * 发送图片消息
+     *
+     * @param userName
+     * @param image
+     * @return
+     */
+    public JSONObject sendImage(String userName, File image) {
+        ContentType contentType = FileUtil.getContentBody(image);
+        byte[] mediaData = FileUtil.getBytes(image);
+        return sendImage(userName, mediaData, image.getName(), contentType);
+    }
+
+    /**
+     * 发送图片消息（根据昵称）
+     *
+     * @param nickName
+     * @param mediaData
+     * @param mediaName
+     * @param contentType
+     * @return
+     */
+    public JSONObject sendImageToNickName(String nickName, byte[] mediaData, String mediaName, ContentType contentType) {
+        if (StringUtil.isEmpty(nickName)) {
+            return sendImage(null, mediaData, mediaName, contentType);
+        }
+
+        UserInfo userInfo = getContactByNickName(false, nickName);
+        if (userInfo == null) {
+            return null;
+        }
+
+        String userName = userInfo.getUserName();
+        if (StringUtil.isEmpty(userName)) {
+            return null;
+        }
+
+        return sendImage(userName, mediaData, mediaName, contentType);
+    }
+
+    /**
+     * 发送图片消息（根据昵称）
+     *
+     * @param nickName
+     * @param image
+     * @return
+     */
+    public JSONObject sendImageToNickName(String nickName, File image) {
+        ContentType contentType = FileUtil.getContentBody(image);
+        byte[] mediaData = FileUtil.getBytes(image);
+        return sendImageToNickName(nickName, mediaData, image.getName(), contentType);
+    }
+
+    /**
+     * 发送图片消息（根据备注名）
+     *
+     * @param remarkName
+     * @param mediaData
+     * @param mediaName
+     * @param contentType
+     * @return
+     */
+    public JSONObject sendImageToRemarkName(String remarkName, byte[] mediaData, String mediaName, ContentType contentType) {
+        if (StringUtil.isEmpty(remarkName)) {
+            return sendImage(null, mediaData, mediaName, contentType);
+        }
+
+        UserInfo userInfo = getContactByRemarkName(false, remarkName);
+        if (userInfo == null) {
+            return null;
+        }
+
+        String userName = userInfo.getUserName();
+        if (StringUtil.isEmpty(userName)) {
+            return null;
+        }
+
+        return sendImage(userName, mediaData, mediaName, contentType);
+    }
+
+    /**
+     * 发送图片消息（根据备注名）
+     *
+     * @param remarkName
+     * @param image
+     * @return
+     */
+    public JSONObject sendImageToRemarkName(String remarkName, File image) {
+        ContentType contentType = FileUtil.getContentBody(image);
+        byte[] mediaData = FileUtil.getBytes(image);
+        return sendImageToRemarkName(remarkName, mediaData, image.getName(), contentType);
+    }
+
+    /**
+     * 发送图片消息（根据多种名称）
+     *
+     * @param userName
+     * @param nickName
+     * @param remarkName
+     * @param mediaData
+     * @param mediaName
+     * @param contentType
+     * @return
+     */
+    public JSONObject sendImage(String userName, String nickName, String remarkName
+            , byte[] mediaData, String mediaName, ContentType contentType) {
+        UserInfo userInfo = null;
+
+        if (StringUtil.isNotEmpty(userName)) {
+            return sendImage(userName, mediaData, mediaName, contentType);
+        } else if (StringUtil.isNotEmpty(nickName)) {
+            userInfo = getContactByNickName(false, nickName);
+        } else if (StringUtil.isNotEmpty(remarkName)) {
+            userInfo = getContactByRemarkName(false, remarkName);
+        } else {
+            String loginUserName = getLoginUserName(false);
+            return sendImage(loginUserName, mediaData, mediaName, contentType);
+        }
+
+        if (userInfo == null) {
+            return null;
+        }
+        userName = userInfo.getUserName();
+        if (StringUtil.isEmpty(userName)) {
+            return null;
+        }
+        return sendImage(userName, mediaData, mediaName, contentType);
+    }
+
+    /**
+     * 发送图片消息（根据多种名称）
+     *
+     * @param userName
+     * @param nickName
+     * @param remarkName
+     * @param image
+     * @return
+     */
+    public JSONObject sendImage(String userName, String nickName, String remarkName, File image) {
+        ContentType contentType = FileUtil.getContentBody(image);
+        byte[] mediaData = FileUtil.getBytes(image);
+        return sendImage(userName, nickName, remarkName, mediaData, image.getName(), contentType);
+    }
 }
diff --git a/src/main/java/com/hotlcc/wechat4j/api/WebWeixinApi.java b/src/main/java/com/hotlcc/wechat4j/api/WebWeixinApi.java
index 4ede037..5e9b1e0 100644
--- a/src/main/java/com/hotlcc/wechat4j/api/WebWeixinApi.java
+++ b/src/main/java/com/hotlcc/wechat4j/api/WebWeixinApi.java
@@ -4,6 +4,7 @@ import com.alibaba.fastjson.JSONArray;
 import com.alibaba.fastjson.JSONObject;
 import com.hotlcc.wechat4j.enums.LoginTipEnum;
 import com.hotlcc.wechat4j.model.BaseRequest;
+import com.hotlcc.wechat4j.model.MediaMessage;
 import com.hotlcc.wechat4j.model.WxMessage;
 import com.hotlcc.wechat4j.util.PropertiesUtil;
 import com.hotlcc.wechat4j.util.StringUtil;
@@ -26,10 +27,9 @@ import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 import org.stringtemplate.v4.ST;
 
-import javax.activation.MimetypesFileTypeMap;
-import java.io.File;
-import java.io.FileInputStream;
+import java.math.BigDecimal;
 import java.util.ArrayList;
+import java.util.Arrays;
 import java.util.List;
 import java.util.regex.Matcher;
 import java.util.regex.Pattern;
@@ -43,13 +43,20 @@ import java.util.regex.Pattern;
 public class WebWeixinApi {
     private static Logger logger = LoggerFactory.getLogger(WebWeixinApi.class);
 
-    //预编译正则匹配
+    /**
+     * 预编译正则匹配
+     */
     private static Pattern PATTERN_UUID_1 = Pattern.compile("window.QRLogin.code = (\\d+);");
     private static Pattern PATTERN_UUID_2 = Pattern.compile("window.QRLogin.code = (\\d+); window.QRLogin.uuid = \"(\\S+?)\";");
     private static Pattern PATTERN_REDIRECT_URI_1 = Pattern.compile("window.code=(\\d+);");
     private static Pattern PATTERN_REDIRECT_URI_2 = Pattern.compile("window.code=(\\d+);\\s*window.redirect_uri=\"(\\S+?)\";");
     private static Pattern PATTERN_REDIRECT_URI_3 = Pattern.compile("http(s*)://wx(\\d*)\\.qq\\.com\\/");
 
+    /**
+     * 上传媒体文件分片大小
+     */
+    private static final int UPLOAD_MEDIA_FILE_CHUNK_SIZE = 524288;
+
     /**
      * 获取微信uuid
      */
@@ -312,7 +319,7 @@ public class WebWeixinApi {
         try {
             String url = new ST(PropertiesUtil.getProperty("webwx-url.webwxinit_url"))
                     .add("urlVersion", urlVersion)
-                    .add("pass_ticket", passticket)
+                    .add("pass_ticket", StringUtil.encodeURL(passticket, Consts.UTF_8.name()))
                     .add("r", System.currentTimeMillis() / 1252L)
                     .render();
 
@@ -353,7 +360,7 @@ public class WebWeixinApi {
         try {
             String url = new ST(PropertiesUtil.getProperty("webwx-url.statusnotify_url"))
                     .add("urlVersion", urlVersion)
-                    .add("pass_ticket", passticket)
+                    .add("pass_ticket", StringUtil.encodeURL(passticket, Consts.UTF_8.name()))
                     .render();
 
             HttpPost httpPost = new HttpPost(url);
@@ -524,7 +531,7 @@ public class WebWeixinApi {
                     .add("urlVersion", urlVersion)
                     .add("skey", BaseRequest.getSkey())
                     .add("sid", BaseRequest.getSid())
-                    .add("pass_ticket", passticket)
+                    .add("pass_ticket", StringUtil.encodeURL(passticket, Consts.UTF_8.name()))
                     .render();
 
             HttpPost httpPost = new HttpPost(url);
@@ -563,7 +570,7 @@ public class WebWeixinApi {
         try {
             String url = new ST(PropertiesUtil.getProperty("webwx-url.webwxsendmsg_url"))
                     .add("urlVersion", urlVersion)
-                    .add("pass_ticket", passticket)
+                    .add("pass_ticket", StringUtil.encodeURL(passticket, Consts.UTF_8.name()))
                     .render();
 
             HttpPost httpPost = new HttpPost(url);
@@ -595,78 +602,18 @@ public class WebWeixinApi {
     }
 
     /**
-     * 上传媒体文件
-     *
-     * @return
-     */
-    public JSONObject uploadMedia(HttpClient httpClient,
-                                  String urlVersion,
-                                  String passticket,
-                                  BaseRequest BaseRequest,
-                                  String FromUserName,
-                                  String ToUserName,
-                                  String dataTicket,
-                                  byte[] data,
-                                  String fileName,
-                                  ContentType contentType) {
-        try {
-            String url = new ST(PropertiesUtil.getProperty("webwx-url.uploadmedia_url"))
-                    .add("urlVersion", urlVersion)
-                    .render();
-
-            HttpPost httpPost = new HttpPost(url);
-            httpPost.setHeader("Content-type", ContentType.MULTIPART_FORM_DATA.toString());
-
-            long millis = System.currentTimeMillis();
-
-            JSONObject uploadmediarequest = new JSONObject();
-            uploadmediarequest.put("UploadType", 2);
-            uploadmediarequest.put("BaseRequest", BaseRequest);
-            uploadmediarequest.put("ClientMediaId", millis);
-            uploadmediarequest.put("TotalLen", data.length);
-            uploadmediarequest.put("StartPos", 0);
-            uploadmediarequest.put("DataLen", data.length);
-            uploadmediarequest.put("MediaType", 4);
-            uploadmediarequest.put("FromUserName", FromUserName);
-            uploadmediarequest.put("ToUserName", ToUserName);
-            uploadmediarequest.put("FileMd5", DigestUtils.md5(data));
-
-            HttpEntity paramEntity = MultipartEntityBuilder.create()
-                    .setMode(HttpMultipartMode.BROWSER_COMPATIBLE)
-                    .addTextBody("id", StringUtil.getUuid(), ContentType.TEXT_PLAIN)
-                    .addTextBody("name", fileName, ContentType.TEXT_PLAIN)
-                    .addTextBody("type", contentType.getMimeType(), ContentType.TEXT_PLAIN)
-                    .addTextBody("lastModifieDate", millis + "", ContentType.TEXT_PLAIN)
-                    .addTextBody("size", data.length + "", ContentType.TEXT_PLAIN)
-                    .addTextBody("mediatype", WechatUtil.getMediatype(contentType.getMimeType()), ContentType.TEXT_PLAIN)
-                    .addTextBody("uploadmediarequest", uploadmediarequest.toJSONString(), ContentType.TEXT_PLAIN)
-                    .addTextBody("webwx_data_ticket", dataTicket, ContentType.TEXT_PLAIN)
-                    .addTextBody("pass_ticket", passticket, ContentType.TEXT_PLAIN)
-                    .addBinaryBody("filename", data, contentType, fileName)
-                    .build();
-            httpPost.setEntity(paramEntity);
-
-            HttpResponse response = httpClient.execute(httpPost);
-            int statusCode = response.getStatusLine().getStatusCode();
-            if (HttpStatus.SC_OK != statusCode) {
-                throw new RuntimeException("响应失败(" + statusCode + ")");
-            }
-
-            HttpEntity entity = response.getEntity();
-            String res = EntityUtils.toString(entity, Consts.UTF_8);
-
-            JSONObject result = JSONObject.parseObject(res);
-
-            return result;
-        } catch (Exception e) {
-            logger.error("上传媒体文件异常", e);
-            return null;
-        }
-    }
-
-    /**
-     * 上传媒体文件
+     * 上传媒体文件(支持大文件自动分片上传)
      *
+     * @param httpClient
+     * @param urlVersion
+     * @param passticket
+     * @param baseRequest
+     * @param fromUserName
+     * @param toUserName
+     * @param dataTicket
+     * @param mediaData
+     * @param mediaName
+     * @param contentType
      * @return
      */
     public JSONObject uploadMedia(HttpClient httpClient,
@@ -676,44 +623,113 @@ public class WebWeixinApi {
                                   String fromUserName,
                                   String toUserName,
                                   String dataTicket,
-                                  File file) {
+                                  byte[] mediaData,
+                                  String mediaName,
+                                  ContentType contentType) {
         try {
             String url = new ST(PropertiesUtil.getProperty("webwx-url.uploadmedia_url"))
                     .add("urlVersion", urlVersion)
                     .render();
 
+            long millis = System.currentTimeMillis();
+            int mediaLength = mediaData.length;
+            // String mimeType = contentType.getMimeType();
+
             HttpPost httpPost = new HttpPost(url);
             httpPost.setHeader("Content-type", ContentType.MULTIPART_FORM_DATA.toString());
 
-            long millis = System.currentTimeMillis();
-            String contentTypeStr = new MimetypesFileTypeMap().getContentType(file);
-            ContentType contentType = ContentType.parse(contentTypeStr);
-
             JSONObject uploadmediarequest = new JSONObject();
             uploadmediarequest.put("UploadType", 2);
             uploadmediarequest.put("BaseRequest", baseRequest);
             uploadmediarequest.put("ClientMediaId", millis);
-            uploadmediarequest.put("TotalLen", file.length());
+            uploadmediarequest.put("TotalLen", mediaLength);
             uploadmediarequest.put("StartPos", 0);
-            uploadmediarequest.put("DataLen", file.length());
+            uploadmediarequest.put("DataLen", mediaLength);
             uploadmediarequest.put("MediaType", 4);
             uploadmediarequest.put("FromUserName", fromUserName);
             uploadmediarequest.put("ToUserName", toUserName);
-            uploadmediarequest.put("FileMd5", DigestUtils.md5(new FileInputStream(file)));
+            uploadmediarequest.put("FileMd5", DigestUtils.md5Hex(mediaData));
 
-            HttpEntity paramEntity = MultipartEntityBuilder.create()
-                    .setMode(HttpMultipartMode.BROWSER_COMPATIBLE)
-                    .addTextBody("id", StringUtil.getUuid(), ContentType.TEXT_PLAIN)
-                    .addTextBody("name", file.getName(), ContentType.TEXT_PLAIN)
-                    .addTextBody("type", contentTypeStr, ContentType.TEXT_PLAIN)
-                    .addTextBody("lastModifieDate", millis + "", ContentType.TEXT_PLAIN)
-                    .addTextBody("size", file.length() + "", ContentType.TEXT_PLAIN)
-                    .addTextBody("mediatype", WechatUtil.getMediatype(contentType.getMimeType()), ContentType.TEXT_PLAIN)
-                    .addTextBody("uploadmediarequest", uploadmediarequest.toJSONString(), ContentType.TEXT_PLAIN)
-                    .addTextBody("webwx_data_ticket", dataTicket, ContentType.TEXT_PLAIN)
-                    .addTextBody("pass_ticket", passticket, ContentType.TEXT_PLAIN)
-                    .addBinaryBody("filename", file, contentType, file.getName())
-                    .build();
+            // 分片数量
+            int chunks = new BigDecimal(mediaLength).divide(new BigDecimal(UPLOAD_MEDIA_FILE_CHUNK_SIZE), 0, BigDecimal.ROUND_UP).intValue();
+
+            JSONObject result = null;
+            for (int chunk = 0; chunk < chunks; chunk++) {
+                int from = chunk * UPLOAD_MEDIA_FILE_CHUNK_SIZE;
+                int to = (chunk + 1) * UPLOAD_MEDIA_FILE_CHUNK_SIZE;
+                to = Math.min(to, mediaLength);
+                byte[] temp = Arrays.copyOfRange(mediaData, from, to);
+
+                HttpEntity paramEntity = MultipartEntityBuilder.create()
+                        .setMode(HttpMultipartMode.BROWSER_COMPATIBLE)
+                        // .addTextBody("id", StringUtil.getUuid(), ContentType.TEXT_PLAIN)
+                        // .addTextBody("name", mediaName, ContentType.TEXT_PLAIN)
+                        // .addTextBody("type", mimeType, ContentType.TEXT_PLAIN)
+                        // .addTextBody("lastModifieDate", String.valueOf(millis), ContentType.TEXT_PLAIN)
+                        // .addTextBody("size", String.valueOf(mediaLength), ContentType.TEXT_PLAIN)
+                        .addTextBody("chunks", String.valueOf(chunks))
+                        .addTextBody("chunk", String.valueOf(chunk))
+                        // .addTextBody("mediatype", WechatUtil.getMediatype(mimeType), ContentType.TEXT_PLAIN)
+                        .addTextBody("uploadmediarequest", uploadmediarequest.toJSONString(), ContentType.TEXT_PLAIN)
+                        .addTextBody("webwx_data_ticket", dataTicket, ContentType.TEXT_PLAIN)
+                        .addTextBody("pass_ticket", passticket, ContentType.TEXT_PLAIN)
+                        .addBinaryBody("filename", temp, contentType, mediaName)
+                        .build();
+                httpPost.setEntity(paramEntity);
+
+                HttpResponse response = httpClient.execute(httpPost);
+                int statusCode = response.getStatusLine().getStatusCode();
+                if (HttpStatus.SC_OK != statusCode) {
+                    throw new RuntimeException("响应失败(" + statusCode + ")");
+                }
+
+                HttpEntity entity = response.getEntity();
+                String res = EntityUtils.toString(entity, Consts.UTF_8);
+
+                result = JSONObject.parseObject(res);
+                if (result == null) {
+                    break;
+                }
+
+                JSONObject BaseResponse = result.getJSONObject("BaseResponse");
+                if (BaseResponse == null) {
+                    break;
+                }
+                int Ret = BaseResponse.getIntValue("Ret");
+                if (Ret != 0) {
+                    break;
+                }
+            }
+
+            return result;
+        } catch (Exception e) {
+            logger.error("上传媒体文件异常", e);
+            return null;
+        }
+    }
+
+    /**
+     * 发送图片消息
+     */
+    public JSONObject sendImageMsg(HttpClient httpClient,
+                                   String urlVersion,
+                                   String passticket,
+                                   BaseRequest baseRequest,
+                                   MediaMessage message) {
+        try {
+            String url = new ST(PropertiesUtil.getProperty("webwx-url.webwxsendmsgimg_url"))
+                    .add("urlVersion", urlVersion)
+                    .add("pass_ticket", StringUtil.encodeURL(passticket, Consts.UTF_8.name()))
+                    .render();
+
+            HttpPost httpPost = new HttpPost(url);
+            httpPost.setHeader("Content-type", ContentType.APPLICATION_JSON.toString());
+
+            JSONObject paramJson = new JSONObject();
+            paramJson.put("BaseRequest", baseRequest);
+            paramJson.put("Msg", message);
+            paramJson.put("Scene", 0);
+            HttpEntity paramEntity = new StringEntity(paramJson.toJSONString(), Consts.UTF_8);
             httpPost.setEntity(paramEntity);
 
             HttpResponse response = httpClient.execute(httpPost);
@@ -729,7 +745,7 @@ public class WebWeixinApi {
 
             return result;
         } catch (Exception e) {
-            logger.error("上传媒体文件异常", e);
+            logger.error("发送图片消息异常", e);
             return null;
         }
     }
diff --git a/src/main/java/com/hotlcc/wechat4j/model/AppInfo.java b/src/main/java/com/hotlcc/wechat4j/model/AppInfo.java
index 780f828..40f17b3 100644
--- a/src/main/java/com/hotlcc/wechat4j/model/AppInfo.java
+++ b/src/main/java/com/hotlcc/wechat4j/model/AppInfo.java
@@ -5,11 +5,14 @@ import com.alibaba.fastjson.JSONObject;
 import com.alibaba.fastjson.annotation.JSONField;
 import lombok.Getter;
 
+import java.io.Serializable;
 import java.util.ArrayList;
 import java.util.List;
 
 @Getter
-public final class AppInfo {
+public final class AppInfo implements Serializable {
+    private static final long serialVersionUID = 1L;
+
     private AppInfo() {
     }
 
diff --git a/src/main/java/com/hotlcc/wechat4j/model/BaseRequest.java b/src/main/java/com/hotlcc/wechat4j/model/BaseRequest.java
index 9f77c74..be0883e 100644
--- a/src/main/java/com/hotlcc/wechat4j/model/BaseRequest.java
+++ b/src/main/java/com/hotlcc/wechat4j/model/BaseRequest.java
@@ -5,12 +5,16 @@ import com.hotlcc.wechat4j.util.WechatUtil;
 import lombok.Getter;
 import lombok.Setter;
 
+import java.io.Serializable;
+
 /**
  * 基本请求模型
  */
 @Getter
 @Setter
-public class BaseRequest {
+public class BaseRequest implements Serializable {
+    private static final long serialVersionUID = 1L;
+
     public BaseRequest() {
     }
 
diff --git a/src/main/java/com/hotlcc/wechat4j/model/MediaMessage.java b/src/main/java/com/hotlcc/wechat4j/model/MediaMessage.java
new file mode 100644
index 0000000..b925401
--- /dev/null
+++ b/src/main/java/com/hotlcc/wechat4j/model/MediaMessage.java
@@ -0,0 +1,15 @@
+package com.hotlcc.wechat4j.model;
+
+import com.alibaba.fastjson.annotation.JSONField;
+import lombok.Getter;
+import lombok.Setter;
+
+/**
+ * 媒体消息
+ */
+@Getter
+@Setter
+public class MediaMessage extends WxMessage {
+    @JSONField(name = "MediaId")
+    private String mediaId;
+}
diff --git a/src/main/java/com/hotlcc/wechat4j/model/ReceivedMsg.java b/src/main/java/com/hotlcc/wechat4j/model/ReceivedMsg.java
index d5d56be..93a905d 100644
--- a/src/main/java/com/hotlcc/wechat4j/model/ReceivedMsg.java
+++ b/src/main/java/com/hotlcc/wechat4j/model/ReceivedMsg.java
@@ -5,11 +5,14 @@ import com.alibaba.fastjson.JSONObject;
 import com.alibaba.fastjson.annotation.JSONField;
 import lombok.Getter;
 
+import java.io.Serializable;
 import java.util.ArrayList;
 import java.util.List;
 
 @Getter
-public final class ReceivedMsg {
+public final class ReceivedMsg implements Serializable {
+    private static final long serialVersionUID = 1L;
+
     private ReceivedMsg() {
     }
 
diff --git a/src/main/java/com/hotlcc/wechat4j/model/RecommendInfo.java b/src/main/java/com/hotlcc/wechat4j/model/RecommendInfo.java
index bbc177d..269cfc5 100644
--- a/src/main/java/com/hotlcc/wechat4j/model/RecommendInfo.java
+++ b/src/main/java/com/hotlcc/wechat4j/model/RecommendInfo.java
@@ -5,11 +5,14 @@ import com.alibaba.fastjson.JSONObject;
 import com.alibaba.fastjson.annotation.JSONField;
 import lombok.Getter;
 
+import java.io.Serializable;
 import java.util.ArrayList;
 import java.util.List;
 
 @Getter
-public final class RecommendInfo {
+public final class RecommendInfo implements Serializable {
+    private static final long serialVersionUID = 1L;
+
     private RecommendInfo() {
     }
 
diff --git a/src/main/java/com/hotlcc/wechat4j/model/UserInfo.java b/src/main/java/com/hotlcc/wechat4j/model/UserInfo.java
index 6eba56a..d7dcced 100644
--- a/src/main/java/com/hotlcc/wechat4j/model/UserInfo.java
+++ b/src/main/java/com/hotlcc/wechat4j/model/UserInfo.java
@@ -5,6 +5,7 @@ import com.alibaba.fastjson.JSONObject;
 import com.alibaba.fastjson.annotation.JSONField;
 import lombok.Getter;
 
+import java.io.Serializable;
 import java.util.ArrayList;
 import java.util.List;
 
@@ -12,7 +13,9 @@ import java.util.List;
  * 微信用户信息
  */
 @Getter
-public final class UserInfo {
+public final class UserInfo implements Serializable {
+    private static final long serialVersionUID = 1L;
+
     private UserInfo() {
     }
 
diff --git a/src/main/java/com/hotlcc/wechat4j/model/WxMessage.java b/src/main/java/com/hotlcc/wechat4j/model/WxMessage.java
index 05db641..f6ffb89 100644
--- a/src/main/java/com/hotlcc/wechat4j/model/WxMessage.java
+++ b/src/main/java/com/hotlcc/wechat4j/model/WxMessage.java
@@ -4,12 +4,16 @@ import com.alibaba.fastjson.annotation.JSONField;
 import lombok.Getter;
 import lombok.Setter;
 
+import java.io.Serializable;
+
 /**
  * 要发送的消息
  */
 @Getter
 @Setter
-public class WxMessage {
+public class WxMessage implements Serializable {
+    private static final long serialVersionUID = 1L;
+
     @JSONField(name = "ClientMsgId")
     private String clientMsgId;
     @JSONField(name = "Content")
diff --git a/src/main/java/com/hotlcc/wechat4j/util/FileUtil.java b/src/main/java/com/hotlcc/wechat4j/util/FileUtil.java
new file mode 100644
index 0000000..f9cb3a0
--- /dev/null
+++ b/src/main/java/com/hotlcc/wechat4j/util/FileUtil.java
@@ -0,0 +1,70 @@
+package com.hotlcc.wechat4j.util;
+
+import org.apache.http.entity.ContentType;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import javax.activation.MimetypesFileTypeMap;
+import java.io.ByteArrayOutputStream;
+import java.io.File;
+import java.io.FileInputStream;
+import java.io.IOException;
+
+/**
+ * 文件工具类
+ */
+public final class FileUtil {
+    private static Logger logger = LoggerFactory.getLogger(FileUtil.class);
+
+    private FileUtil() {
+    }
+
+    public static byte[] getBytes(File file) {
+        if (file == null) {
+            throw new IllegalArgumentException("参数file不能为null");
+        }
+
+        FileInputStream fis = null;
+        ByteArrayOutputStream baos = null;
+        try {
+            fis = new FileInputStream(file);
+            baos = new ByteArrayOutputStream();
+
+            byte[] buffer = new byte[1024];
+            int len;
+
+            while ((len = fis.read(buffer)) != -1) {
+                baos.write(buffer, 0, len);
+            }
+
+            baos.flush();
+            baos.close();
+            fis.close();
+
+            return baos.toByteArray();
+        } catch (IOException e) {
+            throw new RuntimeException(e);
+        } finally {
+            if (fis != null) {
+                try {
+                    fis.close();
+                } catch (IOException e) {
+                    e.printStackTrace();
+                }
+            }
+            if (baos != null) {
+                try {
+                    baos.close();
+                } catch (IOException e) {
+                    e.printStackTrace();
+                }
+            }
+        }
+    }
+
+    public static ContentType getContentBody(File file) {
+        String mimeType = new MimetypesFileTypeMap().getContentType(file);
+        ContentType contentType = ContentType.parse(mimeType);
+        return contentType;
+    }
+}
diff --git a/src/main/resources/META-INF/wechat4j/webwx-url.properties b/src/main/resources/META-INF/wechat4j/webwx-url.properties
index f3176ac..cce8015 100644
--- a/src/main/resources/META-INF/wechat4j/webwx-url.properties
+++ b/src/main/resources/META-INF/wechat4j/webwx-url.properties
@@ -29,4 +29,6 @@ webwx-url.webwxsync_url=https://wx<urlVersion>.qq.com/cgi-bin/mmwebwx-bin/webwxs
 ## 4.2、发送消息
 webwx-url.webwxsendmsg_url=https://wx<urlVersion>.qq.com/cgi-bin/mmwebwx-bin/webwxsendmsg?pass_ticket=<pass_ticket>
 ## 4.3、上传媒体文件
-webwx-url.uploadmedia_url=https://file.wx<urlVersion>.qq.com/cgi-bin/mmwebwx-bin/webwxuploadmedia?f=json
\ No newline at end of file
+webwx-url.uploadmedia_url=https://file.wx<urlVersion>.qq.com/cgi-bin/mmwebwx-bin/webwxuploadmedia?f=json
+## 4.4、发送图片消息
+webwx-url.webwxsendmsgimg_url=https://wx<urlVersion>.qq.com/cgi-bin/mmwebwx-bin/webwxsendmsgimg?fun=async&f=json&lang=zh_CN&pass_ticket=<pass_ticket>
\ No newline at end of file
diff --git a/src/test/java/TestClass.java b/src/test/java/TestClass.java
index 707b815..0a0cf5b 100644
--- a/src/test/java/TestClass.java
+++ b/src/test/java/TestClass.java
@@ -1,14 +1,22 @@
+import com.alibaba.fastjson.JSONObject;
 import com.hotlcc.wechat4j.Wechat;
 import com.hotlcc.wechat4j.api.WebWeixinApi;
 import com.hotlcc.wechat4j.handler.ReceivedMsgHandler;
 import com.hotlcc.wechat4j.model.ReceivedMsg;
 import com.hotlcc.wechat4j.model.UserInfo;
 import com.hotlcc.wechat4j.util.StringUtil;
+import org.junit.Before;
+import org.junit.Test;
+
+import java.io.File;
 
 public class TestClass {
-    public static void main(String[] args) {
+    private Wechat wechat;
+
+    @Before
+    public void initAndLogin() {
+        wechat = new Wechat();
         WebWeixinApi api = new WebWeixinApi();
-        Wechat wechat = new Wechat();
         wechat.setWebWeixinApi(api);
         wechat.addReceivedMsgHandler(new ReceivedMsgHandler() {
             @Override
@@ -18,6 +26,15 @@ public class TestClass {
                 System.out.println(name + ": " + msg.getContent());
             }
         });
+
         wechat.autoLogin();
     }
+
+    @Test
+    public void testSendImage() {
+        File file = new File("D:\\Downloads\\images\\6600e90b8b0ce2037a5291a7147ffd2b.jpeg");
+
+        JSONObject result = wechat.sendImage(null, file);
+        System.out.println(result);
+    }
 }