diff --git a/src/com/hellogithub/dao/UserDao.java b/src/com/hellogithub/dao/UserDao.java
index 32bb820..179ba54 100644
--- a/src/com/hellogithub/dao/UserDao.java
+++ b/src/com/hellogithub/dao/UserDao.java
@@ -306,4 +306,25 @@ public class UserDao {
 
         return userEntity;
     }
+
+    /**
+     * userAvatar头像
+     * @return
+     */
+    public void insertUserAvatar(String username,String url){
+        Connection conn = null;
+        PreparedStatement preparedStatement = null;
+        String sql = "UPDATE user set userAvatar = ''+?+'' WHERE userName = ? AND isValid = 1;";
+        try{
+            conn = JdbcUtils.getConnection();
+            preparedStatement = conn.prepareStatement(sql);
+            preparedStatement.setString(1, url);
+            preparedStatement.setString(2,username);
+            preparedStatement.executeUpdate();
+            JdbcUtils.closeConnection(preparedStatement, conn);
+        }catch(Exception e){
+            JdbcUtils.rollBackTransaction(conn);
+            e.printStackTrace();
+        }
+    }
 }
diff --git a/src/com/hellogithub/service/UserService.java b/src/com/hellogithub/service/UserService.java
index 5164b5a..268dd34 100644
--- a/src/com/hellogithub/service/UserService.java
+++ b/src/com/hellogithub/service/UserService.java
@@ -76,4 +76,9 @@ public class UserService {
     public userEntity selectUserByName(String name ){return userDao.selectUserByName(name);}
 
     public int selectIdByName(String name ){return userDao.selectIdByName(name);}
+
+    /**
+     * userAvatar
+     */
+    public void insertUserAvatar(String username,String url){userDao.insertUserAvatar(username,url);}
 }
diff --git a/src/com/hellogithub/servlet/UploadHandleServlet.java b/src/com/hellogithub/servlet/UploadHandleServlet.java
index 36aca46..c787777 100644
--- a/src/com/hellogithub/servlet/UploadHandleServlet.java
+++ b/src/com/hellogithub/servlet/UploadHandleServlet.java
@@ -39,7 +39,7 @@ public class UploadHandleServlet extends HttpServlet {
 
             //得到上传文件的保存目录，将上传的文件存放于WEB-INF目录下，不允许外界直接访问，保证上传文件的安全
             String savePath = this.getServletContext().getRealPath(File.separator+"WEB-INF"+File.separator+"upload");
-            savePath= this.getServletContext().getRealPath(File.separator+"WEB-INF"+File.separator+"upload").replace("\\out\\artifacts\\hellogithub_war_exploded\\WEB-INF\\upload","\\web\\uploadFile");
+            savePath= this.getServletContext().getRealPath(File.separator+"WEB-INF"+File.separator+"upload").replace("\\out\\artifacts\\helloGithub_war_exploded\\WEB-INF\\upload","\\web\\uploadFile");
             System.out.println(savePath);
 //            savePath="D:\\Java\\helloG\\hellogithub\\web\\uploadFile";
 //        String savePath="E:\\Desktop\\out";
diff --git a/src/com/hellogithub/servlet/userAvatarServlet.java b/src/com/hellogithub/servlet/userAvatarServlet.java
new file mode 100644
index 0000000..8deed76
--- /dev/null
+++ b/src/com/hellogithub/servlet/userAvatarServlet.java
@@ -0,0 +1,69 @@
+package com.hellogithub.servlet;
+
+import com.alibaba.fastjson.JSONObject;
+import com.hellogithub.entity.userEntity;
+import com.hellogithub.service.UserService;
+import javax.servlet.ServletException;
+import javax.servlet.http.HttpServlet;
+import javax.servlet.http.HttpServletRequest;
+import javax.servlet.http.HttpServletResponse;
+import javax.servlet.http.HttpSession;
+
+import javax.servlet.annotation.WebServlet;
+import java.io.IOException;
+import java.io.PrintWriter;
+import java.util.HashMap;
+
+@WebServlet("/userAvatar")
+public class userAvatarServlet extends HttpServlet {
+    private UserService userService = new UserService();
+    @Override
+    protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
+        doPost(req,resp);
+    }
+
+    @Override
+    protected void doPost(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
+        resp.setCharacterEncoding("UTF-8");
+        resp.setContentType("text/html; charset=utf-8");
+        //        设置响应头允许ajax跨域访问
+        String curOrigin = req.getHeader("Origin");
+        resp.setHeader("Access-Control-Allow-Origin", curOrigin == null ? "true" : curOrigin);
+        resp.setHeader("Access-Control-Allow-Credentials", "true");
+        resp.setHeader("Access-Control-Allow-Methods", "POST, GET, OPTIONS, DELETE, HEAD");
+        resp.setHeader("Access-Control-Max-Age", "3600");
+        resp.setHeader("Access-Control-Allow-Headers", "access-control-allow-origin, authority, content-type, version-info, X-Requested-With");
+        resp.setContentType("application/json;charset=UTF-8");
+
+        PrintWriter writer = resp.getWriter();
+        HttpSession session = req.getSession();
+        userEntity userentity = (userEntity) session.getAttribute("user");
+        String url = req.getParameter("url");
+        if(userentity == null)
+        {
+            setResultError("未登录",writer);
+        }else{
+            userService.insertUserAvatar(userentity.getUserName(), url);
+            setResultOK("成功", writer);
+            writer.close();
+        }
+    }
+
+    public void setResult(Integer code, String msg, PrintWriter writer) {
+        HashMap<String, Object> result = new HashMap<>();
+        result.put("code", code);
+        result.put("msg", msg);
+        String jsonString = JSONObject.toJSONString(result);
+        writer.println(jsonString);
+        writer.close();
+    }
+
+    public void setResultError(String msg, PrintWriter writer) {
+        setResult(500, msg, writer);
+    }
+
+    public void setResultOK(String msg, PrintWriter writer) {
+        setResult(200, msg, writer);
+    }
+}
+
diff --git a/web/WEB-INF/web.xml b/web/WEB-INF/web.xml
index d80081d..a1c8489 100644
--- a/web/WEB-INF/web.xml
+++ b/web/WEB-INF/web.xml
@@ -3,4 +3,13 @@
          xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
          xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_4_0.xsd"
          version="4.0">
+    <!-- 引⼊Tomcat的默认Servlet来处理静态资源 -->
+    <servlet-mapping>
+    <servlet-name>default</servlet-name>
+    <url-pattern>*.jpg</url-pattern>
+    <url-pattern>*.css</url-pattern>
+    <url-pattern>*.png</url-pattern>
+    <url-pattern>*.gif</url-pattern>
+    <url-pattern>*.js</url-pattern>
+    </servlet-mapping>
 </web-app>
\ No newline at end of file