diff --git a/src/main/java/cn/celess/blog/service/WebUpdateInfoService.java b/src/main/java/cn/celess/blog/service/WebUpdateInfoService.java
index 7e86124..3973598 100644
--- a/src/main/java/cn/celess/blog/service/WebUpdateInfoService.java
+++ b/src/main/java/cn/celess/blog/service/WebUpdateInfoService.java
@@ -2,10 +2,10 @@ package cn.celess.blog.service;
 
 import cn.celess.blog.entity.model.PageData;
 import cn.celess.blog.entity.model.WebUpdateModel;
-import net.sf.json.JSONObject;
 import org.springframework.stereotype.Service;
 
 import java.util.List;
+import java.util.Map;
 
 /**
  * @author : xiaohai
@@ -59,5 +59,5 @@ public interface WebUpdateInfoService {
      *
      * @return
      */
-    JSONObject getLastestUpdateTime();
+    Map<String, Object> getLastestUpdateTime();
 }
diff --git a/src/main/java/cn/celess/blog/service/serviceimpl/WebUpdateInfoServiceImpl.java b/src/main/java/cn/celess/blog/service/serviceimpl/WebUpdateInfoServiceImpl.java
index f23665a..9290086 100644
--- a/src/main/java/cn/celess/blog/service/serviceimpl/WebUpdateInfoServiceImpl.java
+++ b/src/main/java/cn/celess/blog/service/serviceimpl/WebUpdateInfoServiceImpl.java
@@ -10,20 +10,17 @@ import cn.celess.blog.service.WebUpdateInfoService;
 import cn.celess.blog.util.DateFormatUtil;
 import cn.celess.blog.util.HttpUtil;
 import cn.celess.blog.util.ModalTrans;
+import com.fasterxml.jackson.databind.JsonNode;
+import com.fasterxml.jackson.databind.ObjectMapper;
 import com.github.pagehelper.PageHelper;
 import com.github.pagehelper.PageInfo;
 import lombok.extern.slf4j.Slf4j;
-import net.sf.json.JSONArray;
-import net.sf.json.JSONObject;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.stereotype.Service;
 
 import java.io.IOException;
-import java.text.SimpleDateFormat;
 import java.time.Instant;
-import java.util.ArrayList;
-import java.util.Date;
-import java.util.List;
+import java.util.*;
 
 /**
  * @author : xiaohai
@@ -84,24 +81,25 @@ public class WebUpdateInfoServiceImpl implements WebUpdateInfoService {
     }
 
     @Override
-    public JSONObject getLastestUpdateTime() {
-        JSONObject jsonObject = new JSONObject();
-        jsonObject.put("lastUpdateTime", DateFormatUtil.get(webUpdateInfoMapper.getLastestOne().getUpdateTime()));
-        jsonObject.put("lastUpdateInfo", webUpdateInfoMapper.getLastestOne().getUpdateInfo());
+    public Map<String, Object> getLastestUpdateTime() {
+        Map<String, Object> map = new HashMap<>();
+        map.put("lastUpdateTime", DateFormatUtil.get(webUpdateInfoMapper.getLastestOne().getUpdateTime()));
+        map.put("lastUpdateInfo", webUpdateInfoMapper.getLastestOne().getUpdateInfo());
         try {
-            JSONArray array = JSONArray.fromObject(HttpUtil.get("https://api.github.com/repos/xiaohai2271/blog-frontEnd/commits?page=1&per_page=1"));
-            JSONObject object = array.getJSONObject(0);
-            JSONObject commit = object.getJSONObject("commit");
-            jsonObject.put("lastCommit", commit.getString("message"));
-            jsonObject.put("committerAuthor", commit.getJSONObject("committer").getString("name"));
-            SimpleDateFormat sdf = new SimpleDateFormat();
-            Instant parse = Instant.parse(commit.getJSONObject("committer").getString("date"));
-            jsonObject.put("committerDate", DateFormatUtil.get(Date.from(parse)));
-            jsonObject.put("commitUrl", "https://github.com/xiaohai2271/blog-frontEnd/tree/" + object.getString("sha"));
+            ObjectMapper mapper = new ObjectMapper();
+            JsonNode root = mapper.readTree(HttpUtil.get("https://api.github.com/repos/xiaohai2271/blog-frontEnd/commits?page=1&per_page=1"));
+            Iterator<JsonNode> elements = root.elements();
+            JsonNode next = elements.next();
+            JsonNode commit = next.get("commit");
+            map.put("lastCommit", commit.get("message"));
+            map.put("committerAuthor", commit.get("committer").get("name"));
+            Instant parse = Instant.parse(commit.get("committer").get("date").asText());
+            map.put("committerDate", DateFormatUtil.get(Date.from(parse)));
+            map.put("commitUrl", "https://github.com/xiaohai2271/blog-frontEnd/tree/" + next.get("sha").asText());
         } catch (IOException e) {
             log.info("网络请求失败{}", e.getMessage());
         }
-        return jsonObject;
+        return map;
     }
 
     private List<WebUpdateModel> list2List(List<WebUpdate> webUpdates) {
diff --git a/src/main/java/cn/celess/blog/util/RedisUserUtil.java b/src/main/java/cn/celess/blog/util/RedisUserUtil.java
index a161ad7..3233998 100644
--- a/src/main/java/cn/celess/blog/util/RedisUserUtil.java
+++ b/src/main/java/cn/celess/blog/util/RedisUserUtil.java
@@ -3,7 +3,8 @@ package cn.celess.blog.util;
 import cn.celess.blog.enmu.ResponseEnum;
 import cn.celess.blog.entity.User;
 import cn.celess.blog.exception.MyException;
-import net.sf.json.JSONObject;
+import com.fasterxml.jackson.databind.ObjectMapper;
+import lombok.SneakyThrows;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.stereotype.Component;
 
@@ -31,24 +32,27 @@ public class RedisUserUtil {
         return user;
     }
 
+    @SneakyThrows
     public User getWithOutExc() {
         String token = request.getHeader("Authorization");
         if (token == null || token.isEmpty()) {
             return null;
         }
         String email = jwtUtil.getUsernameFromToken(token);
-        return (User) JSONObject.toBean(JSONObject.fromObject(redisUtil.get(email + "-login")), User.class);
+        return new ObjectMapper().readValue(redisUtil.get(email + "-login"), User.class);
     }
 
+    @SneakyThrows
     public User set(User user) {
         Long expire = redisUtil.getExpire(user.getEmail() + "-login");
-        redisUtil.setEx(user.getEmail() + "-login", JSONObject.fromObject(user).toString(),
+        redisUtil.setEx(user.getEmail() + "-login", new ObjectMapper().writeValueAsString(user),
                 expire > 0 ? expire : JwtUtil.EXPIRATION_SHORT_TIME, TimeUnit.MILLISECONDS);
         return user;
     }
 
+    @SneakyThrows
     public User set(User user, boolean isRemember) {
-        redisUtil.setEx(user.getEmail() + "-login", JSONObject.fromObject(user).toString(),
+        redisUtil.setEx(user.getEmail() + "-login", new ObjectMapper().writeValueAsString(user),
                 isRemember ? JwtUtil.EXPIRATION_LONG_TIME : JwtUtil.EXPIRATION_SHORT_TIME, TimeUnit.MILLISECONDS);
         request.getSession().setAttribute("email", user.getEmail());
         return user;