diff --git a/app.js b/app.js
index 475943e..6f61021 100644
--- a/app.js
+++ b/app.js
@@ -1,6 +1,6 @@
 const express = require("express");
 const request = require("request");
-const fs = require("fs");
+const log = require("./log")
 const app = express();
 const port = 9000;
 const { getDecryptionArray } = require("./decode");
@@ -27,6 +27,8 @@ function xorTransform(decryptionArray) {
 
 app.get("/download", (req, res) => {
   const { url, decodeKey } = req.query;
+  log.info(`download url:${url}`);
+  log.info(`download decodeKey:${decodeKey}`);
   let xorStream = xorTransform(
     getDecryptionArray(decodeURIComponent(decodeKey))
   );
@@ -34,5 +36,5 @@ app.get("/download", (req, res) => {
 });
 
 app.listen(port, () => {
-  console.log(`Example app listening at http://localhost:${port}`);
+  log.info(`Example app listening at http://localhost:${port}`);
 });
diff --git a/log.js b/log.js
new file mode 100644
index 0000000..9b78c3b
--- /dev/null
+++ b/log.js
@@ -0,0 +1,53 @@
+const winston = require('winston');
+function thisLine() {
+    try {
+        const e = new Error();
+        const regex = /\((.*):(\d+):(\d+)\)$/
+        const stacks = e.stack.split("\n")
+        const temp = []
+        stacks.forEach(stack => {
+            if (!stack.includes("node_modules")) {
+                temp.push(stack)
+            }
+        })
+        const match = regex.exec(temp[3]);
+        return {
+            filepath: match[1],
+            line: match[2],
+            column: match[3]
+        };
+    } catch (e) {
+        return {
+            filepath: "unknow",
+            line: "0",
+            column: "0"
+        };
+    }
+}
+const logger = winston.createLogger({
+    level: 'info',
+    transports: [
+        new winston.transports.Console(),
+        new winston.transports.File({
+            dirname: 'log', filename: 'server.log'
+        }),
+    ],
+    datePattern: 'YYYY-MM-DD',
+    zippedArchive: true,
+    format: winston.format.combine(
+        winston.format.timestamp({ format: "YYYY-MM-DD HH:mm:ss,SSS" }),
+        winston.format.align(),
+        winston.format.splat(),
+        winston.format.printf(
+            (info) => {
+                const { timestamp, level, message } = info;
+                const { filepath, line } = thisLine()
+                return `[${timestamp}] [${level.toUpperCase()}] [${filepath}:${line}] ${message}`; // 包括文件名和行号
+            }
+        )
+    ),
+    maxSize: '1000m', // 每个日志文件最大尺寸
+    maxFiles: '14d' // 保留的日志文件天数
+});
+
+module.exports = logger
\ No newline at end of file