diff --git a/db/sql.txt b/db/sql.txt
index 52ebbae..41fd116 100644
--- a/db/sql.txt
+++ b/db/sql.txt
@@ -56,3 +56,9 @@ CREATE TABLE chat_mysql.messages (
     FOREIGN KEY (receiver_name)
         REFERENCES chat_mysql.users(username)
 );
+
+#删除某个人的发送聊天数据
+SELECT *
+FROM chat_mysql.messages
+WHERE sender_name = 'test';
+DELETE FROM chat_mysql.messages WHERE sender_name = 'test';
diff --git a/routes/login.js b/routes/login.js
index fe799c3..017eb3b 100644
--- a/routes/login.js
+++ b/routes/login.js
@@ -70,6 +70,7 @@ router.post("/register", (req, res) => {
             return res.status(500).json({
                 code: 500,
                 message: "注册失败",
+                data: null
             });
         }
 
diff --git a/routes/message.js b/routes/message.js
index 4d8298f..ebfbfb3 100644
--- a/routes/message.js
+++ b/routes/message.js
@@ -44,6 +44,7 @@ router.get(
                 return res.status(500).json({
                     code: 500,
                     message: "查询失败",
+                    data: null
                 });
             }
             if (results.length > 0) {
@@ -97,6 +98,7 @@ router.post(
                 return res.status(500).json({
                     code: 500,
                     message: "查询失败",
+                    data: null
                 });
             }
             if (results.length > 0) {
@@ -150,6 +152,7 @@ router.post(
             return res.status(500).json({
                 code: 500,
                 message: "发送消息失败",
+                data: null
             });
         }
 
diff --git a/routes/user.js b/routes/user.js
index 2413462..3e2086e 100644
--- a/routes/user.js
+++ b/routes/user.js
@@ -11,6 +11,7 @@ router.get(
     (req, res) => {
         res.json({
             code: 200,
+            message: "查询成功",
             data: {
                 username: req.user.username
             }
@@ -40,6 +41,7 @@ router.get(
                 return res.status(500).json({
                     code: 500,
                     message: "查询失败",
+                    data: null
                 });
             }
             if (results.length > 0) {