diff --git a/bookMarkService/business/user/src/main/java/com/fanxb/bookmark/business/user/constant/FileConstant.java b/bookMarkService/business/user/src/main/java/com/fanxb/bookmark/business/user/constant/FileConstant.java
new file mode 100644
index 0000000..ce42280
--- /dev/null
+++ b/bookMarkService/business/user/src/main/java/com/fanxb/bookmark/business/user/constant/FileConstant.java
@@ -0,0 +1,33 @@
+package com.fanxb.bookmark.business.user.constant;
+
+import com.fanxb.bookmark.common.constant.Constant;
+import org.springframework.stereotype.Component;
+
+import javax.annotation.PostConstruct;
+import java.io.File;
+import java.nio.file.Paths;
+
+/**
+ * 类功能简述：
+ * 类功能详述：
+ *
+ * @author fanxb
+ * @date 2019/9/9 14:30
+ */
+@Component
+public class FileConstant {
+
+    /**
+     * 用户头像目录
+     */
+    public static String iconPath = Paths.get("static", "public", "icon").toString();
+
+
+    @PostConstruct
+    private void init() {
+        File file = Paths.get(Constant.fileSavePath, iconPath).toFile();
+        if (!file.exists()) {
+            file.mkdirs();
+        }
+    }
+}
diff --git a/bookMarkService/business/user/src/main/java/com/fanxb/bookmark/business/user/controller/UserController.java b/bookMarkService/business/user/src/main/java/com/fanxb/bookmark/business/user/controller/UserController.java
index c35282d..dc64eac 100644
--- a/bookMarkService/business/user/src/main/java/com/fanxb/bookmark/business/user/controller/UserController.java
+++ b/bookMarkService/business/user/src/main/java/com/fanxb/bookmark/business/user/controller/UserController.java
@@ -71,7 +71,7 @@ public class UserController {
      * @param file 头像文件
      */
     @PostMapping("/icon")
-    public Result pushIcon(@RequestParam("file") MultipartFile file) {
+    public Result pushIcon(@RequestParam("file") MultipartFile file) throws Exception {
         return Result.success(userService.updateIcon(file));
     }
 
diff --git a/bookMarkService/business/user/src/main/java/com/fanxb/bookmark/business/user/dao/UserDao.java b/bookMarkService/business/user/src/main/java/com/fanxb/bookmark/business/user/dao/UserDao.java
index 69a6422..bf0eba1 100644
--- a/bookMarkService/business/user/src/main/java/com/fanxb/bookmark/business/user/dao/UserDao.java
+++ b/bookMarkService/business/user/src/main/java/com/fanxb/bookmark/business/user/dao/UserDao.java
@@ -2,6 +2,7 @@ package com.fanxb.bookmark.business.user.dao;
 
 import com.fanxb.bookmark.common.entity.User;
 import org.apache.ibatis.annotations.Param;
+import org.apache.ibatis.annotations.Update;
 import org.springframework.stereotype.Component;
 
 /**
@@ -48,19 +49,30 @@ public interface UserDao {
      * Description: 更新一个参数
      *
      * @param password 新密码
-     * @param email  邮箱
+     * @param email    邮箱
      * @author fanxb
      * @date 2019/7/9 20:03
      */
-    void resetPassword(@Param("password") String password,@Param("email") String email);
+    void resetPassword(@Param("password") String password, @Param("email") String email);
 
     /**
      * Description: 根据用户id查询用户信息
      *
-     * @author fanxb
-     * @date 2019/7/30 16:08
      * @param userId userId
      * @return com.fanxb.bookmark.common.entity.User
+     * @author fanxb
+     * @date 2019/7/30 16:08
      */
     User selectByUserId(int userId);
+
+    /**
+     * Description: 更新用户icon
+     *
+     * @param userId userId
+     * @param icon   icon
+     * @author fanxb
+     * @date 2019/9/9 13:57
+     */
+    @Update("update user set icon=#{icon} where userId=#{userId}")
+    void updateUserIcon(@Param("userId") int userId, @Param("icon") String icon);
 }
diff --git a/bookMarkService/business/user/src/main/java/com/fanxb/bookmark/business/user/service/UserService.java b/bookMarkService/business/user/src/main/java/com/fanxb/bookmark/business/user/service/UserService.java
index 24359f5..46222e7 100644
--- a/bookMarkService/business/user/src/main/java/com/fanxb/bookmark/business/user/service/UserService.java
+++ b/bookMarkService/business/user/src/main/java/com/fanxb/bookmark/business/user/service/UserService.java
@@ -1,10 +1,12 @@
 package com.fanxb.bookmark.business.user.service;
 
+import com.fanxb.bookmark.business.user.constant.FileConstant;
 import com.fanxb.bookmark.business.user.dao.UserDao;
 import com.fanxb.bookmark.business.user.entity.LoginBody;
 import com.fanxb.bookmark.business.user.entity.LoginRes;
 import com.fanxb.bookmark.business.user.entity.RegisterBody;
 import com.fanxb.bookmark.common.constant.Constant;
+import com.fanxb.bookmark.common.constant.NumberConstant;
 import com.fanxb.bookmark.common.entity.MailInfo;
 import com.fanxb.bookmark.common.entity.User;
 import com.fanxb.bookmark.common.exception.FormDataException;
@@ -13,6 +15,7 @@ import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.stereotype.Service;
 import org.springframework.web.multipart.MultipartFile;
 
+import java.nio.file.Paths;
 import java.util.HashMap;
 import java.util.Map;
 
@@ -36,6 +39,11 @@ public class UserService {
      */
     private static final long LONG_EXPIRE_TIME = 30L * TimeUtil.DAY_MS;
 
+    /**
+     * 头像文件大小限制 单位：KB
+     */
+    private static final int ICON_SIZE = 200;
+
     @Autowired
     private UserDao userDao;
 
@@ -159,10 +167,19 @@ public class UserService {
 
     /**
      * 修改用户头像
+     *
      * @param file file
-     * @return 修改后的路径
+     * @return 访问路径
      */
-    public String updateIcon(MultipartFile file){
-        return "asdf";
+    public String updateIcon(MultipartFile file) throws Exception {
+        if (file.getSize() / NumberConstant.K_SIZE > ICON_SIZE) {
+            throw new FormDataException("文件大小超过限制");
+        }
+        int userId = UserContextHolder.get().getUserId();
+        String fileName = file.getOriginalFilename();
+        String path = Paths.get(FileConstant.iconPath, userId + fileName.substring(fileName.lastIndexOf("."))).toString();
+        file.transferTo(Paths.get(Constant.fileSavePath, path));
+        userDao.updateUserIcon(userId, path);
+        return path;
     }
 }
diff --git a/bookMarkService/common/src/main/java/com/fanxb/bookmark/common/constant/Constant.java b/bookMarkService/common/src/main/java/com/fanxb/bookmark/common/constant/Constant.java
index e99e44f..b96abd3 100644
--- a/bookMarkService/common/src/main/java/com/fanxb/bookmark/common/constant/Constant.java
+++ b/bookMarkService/common/src/main/java/com/fanxb/bookmark/common/constant/Constant.java
@@ -54,4 +54,15 @@ public class Constant {
     public void setJwtSecret(String jwtSecret) {
         Constant.jwtSecret = jwtSecret;
     }
+
+    /**
+     * 文件存储基路径
+     */
+    public static String fileSavePath = "./";
+
+    @Value("${fileSavePath}")
+    public void setFileSavePath(String path) {
+        fileSavePath = path;
+    }
+
 }
diff --git a/bookMarkService/common/src/main/java/com/fanxb/bookmark/common/constant/NumberConstant.java b/bookMarkService/common/src/main/java/com/fanxb/bookmark/common/constant/NumberConstant.java
new file mode 100644
index 0000000..644ff15
--- /dev/null
+++ b/bookMarkService/common/src/main/java/com/fanxb/bookmark/common/constant/NumberConstant.java
@@ -0,0 +1,16 @@
+package com.fanxb.bookmark.common.constant;
+
+/**
+ * 类功能简述：
+ * 类功能详述：
+ *
+ * @author fanxb
+ * @date 2019/9/9 11:41
+ */
+public class NumberConstant {
+
+    /**
+     * 2^10
+     */
+    public static final int K_SIZE = 1024;
+}