update

index4.js

 const express = require('express');
 const axios = require('axios');
 const xml2js = require('xml2js');
-const bodyParser = require('body-parser');
 const crypto = require('crypto');
 const app = express();
-const port = 3001;
+const port = 3000;
 
 // 微信服务号配置
 const WECHAT_TOKEN = 'deepseektest';
 const DEEPSEEK_API_URL = 'https://api.deepseek.com/v1/ask';  // 请替换为 DeepSeek 的具体 API 地址
-const DEEPSEEK_API_KEY = 'sk-14f0cf16bad245169cd2563e0f9b678e';  // 请替换为你的 DeepSeek API 密钥
+const DEEPSEEK_API_KEY = 'your_deepseek_api_key';  // 请替换为你的 DeepSeek API 密钥
 
 // 最大消息长度（微信最大支持2048字节）
 const MAX_TEXT_LENGTH = 2048;
 
-// 解析 XML 数据
-app.use(bodyParser.xml({
-  explicitArray: false,
-  ignoreAttrs: true
-}));
-
 // 微信验证
 app.get('/wechat', (req, res) => {
   const { signature, timestamp, nonce, echostr } = req.query;
@@ -52,17 +45,20 @@ function escapeXml(str) {
 }
 
 // 处理微信消息
-app.post('/wechat', async (req, res) => {
-  const { xml } = req.body;
+app.post('/wechat', express.raw({ type: 'application/xml' }), async (req, res) => {
+  const parser = new xml2js.Parser({ explicitArray: false, ignoreAttrs: true });
+  
+  try {
+    // 解析微信发来的 XML 数据
+    const xmlData = await parser.parseStringPromise(req.body);
 
     // 获取用户提问的内容
-  const userMessage = xml.Content;
+    const userMessage = xmlData.xml.Content;
 
     if (!userMessage) {
       return res.send('No content');
     }
 
-  try {
     // 调用 DeepSeek API 获取答案
     const deepSeekResponse = await axios.post(DEEPSEEK_API_URL, {
       apiKey: DEEPSEEK_API_KEY,
@@ -83,8 +79,8 @@ app.post('/wechat', async (req, res) => {
     // 构建微信返回消息格式
     const responseMessage = `
       <xml>
-        <ToUserName><![CDATA[${xml.FromUserName}]]></ToUserName>
-        <FromUserName><![CDATA[${xml.ToUserName}]]></FromUserName>
+        <ToUserName><![CDATA[${xmlData.xml.FromUserName}]]></ToUserName>
+        <FromUserName><![CDATA[${xmlData.xml.ToUserName}]]></FromUserName>
         <CreateTime>${Date.now()}</CreateTime>
         <MsgType><![CDATA[text]]></MsgType>
         <Content><![CDATA[${answer}]]></Content>
@@ -98,8 +94,8 @@ app.post('/wechat', async (req, res) => {
     console.error('Error calling DeepSeek API:', error);
     const errorMessage = `
       <xml>
-        <ToUserName><![CDATA[${xml.FromUserName}]]></ToUserName>
-        <FromUserName><![CDATA[${xml.ToUserName}]]></FromUserName>
+        <ToUserName><![CDATA[${xmlData.xml.FromUserName}]]></ToUserName>
+        <FromUserName><![CDATA[${xmlData.xml.ToUserName}]]></FromUserName>
         <CreateTime>${Date.now()}</CreateTime>
         <MsgType><![CDATA[text]]></MsgType>
         <Content><![CDATA[Sorry, I couldn't fetch the answer right now. Please try again later.]]></Content>