优化获取联系人信息接口

routes/user.js

@@ -20,8 +20,9 @@ router.get(
     }
 );
 
+// 获取联系人列表
 router.get(
-    "/contactInfo",
+    "/contactsInfo",
     authMiddleware,
     (req, res) => {         
         const sql = `
@@ -67,5 +68,58 @@ router.get(
     }
 );
 
+router.get(
+    "/messagesInfo",
+    authMiddleware,
+    (req, res) => {    
+        const currentUserId = req.user.userId;     
+        const sql = `
+            SELECT
+                id,
+                sender_id,
+                receiver_id,
+                content,
+                created_at
+            FROM chat_mysql.messages
+            WHERE sender_id = ? OR receiver_id = ?
+            ORDER BY created_at ASC;
+        `;
+        db.query(sql, [currentUserId, currentUserId], (error, results) => {
+            if (error) {
+                console.error("数据库查询失败：", error);
+
+                return res.status(500).json({
+                    code: 500,
+                    message: "查询失败",
+                });
+            }
+            if (results.length > 0) {
+                res.json({
+                    code: 200,
+                    message: "查询成功",
+                    data: {
+                        messages: results.map(message => ({
+                            messageId: message.id,
+                            senderId: message.sender_id,
+                            receiverId: message.receiver_id,
+                            content: message.content,
+                            createdAt: message.created_at
+                        }))
+                    },
+                });
+            } else {
+                res.json({
+                    code: 401,
+                    message: "未找到联系人消息",
+                    data: {
+                        messages: []
+                    }
+                });
+            }
+        });
+
+    }
+);
+
 
 module.exports = router;