diff --git a/.idea/vcs.xml b/.idea/vcs.xml
new file mode 100644
index 0000000..35eb1dd
--- /dev/null
+++ b/.idea/vcs.xml
@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="VcsDirectoryMappings">
+    <mapping directory="" vcs="Git" />
+  </component>
+</project>
\ No newline at end of file
diff --git a/app/build.gradle.kts b/app/build.gradle.kts
index f84519c..83c1172 100644
--- a/app/build.gradle.kts
+++ b/app/build.gradle.kts
@@ -11,8 +11,8 @@ android {
         applicationId = "com.stand.standapp"
         minSdk = 24
         targetSdk = 34
-        versionCode = 1
-        versionName = "1.0.0"
+        versionCode = 2
+        versionName = "1.0.1"
 
         testInstrumentationRunner = "androidx.test.runner.AndroidJUnitRunner"
     }
diff --git a/app/src/main/assets/print_demo.html b/app/src/main/assets/print_demo.html
index 93eb261..aae5db1 100644
--- a/app/src/main/assets/print_demo.html
+++ b/app/src/main/assets/print_demo.html
@@ -43,6 +43,19 @@
         .log-item { margin-bottom: 4px; border-bottom: 1px solid #334155; padding-bottom: 2px; }
         .log-time { color: #94a3b8; margin-right: 5px; }
         .log-msg { word-break: break-all; }
+
+        /* Custom Modal Styles */
+        .modal-overlay {
+            display: none; position: fixed; top: 0; left: 0; width: 100%; height: 100%;
+            background: rgba(0,0,0,0.5); z-index: 1000; align-items: center; justify-content: center;
+        }
+        .modal-content {
+            background: white; padding: 20px; border-radius: 12px; width: 85%; max-width: 400px;
+            box-shadow: 0 10px 25px rgba(0,0,0,0.2);
+        }
+        .modal-header { font-weight: bold; font-size: 18px; margin-bottom: 15px; color: #004A8F; border-bottom: 1px solid #eee; padding-bottom: 10px; }
+        .modal-body { font-size: 14px; line-height: 1.8; color: #444; word-break: break-all; }
+        .modal-footer { margin-top: 20px; text-align: right; }
     </style>
 </head>
 <body>
@@ -66,7 +79,8 @@
     <p style="font-size: 12px; color: #666;">(适用于蓝牙/USB 小票机，传输原始 JSON)</p>
 
     <button class="btn btn-orange" onclick="callUpdate()">3. 检查系统更新</button>
-    <button class="btn btn-red" onclick="callExit()">4. 退出应用</button>
+    <button class="btn" style="background: #64748b;" onclick="callAbout()">4. 关于应用</button>
+    <button class="btn btn-red" onclick="callExit()">5. 退出应用</button>
 
     <!-- WebSocket 控制区 -->
     <div class="ws-card">
@@ -177,6 +191,19 @@
     Telewave SDK Connectivity v1.0
 </div>
 
+<!-- 自定义“关于”弹窗 -->
+<div id="aboutModal" class="modal-overlay" onclick="closeAbout()">
+    <div class="modal-content" onclick="event.stopPropagation()">
+        <div class="modal-header">关于应用信息</div>
+        <div id="aboutBody" class="modal-body">
+            正在获取信息...
+        </div>
+        <div class="modal-footer">
+            <button class="btn" style="padding: 10px 20px; background: #64748b; margin: 0;" onclick="closeAbout()">确认</button>
+        </div>
+    </div>
+</div>
+
 <script>
     // 初始化界面
     document.getElementById('current-time').innerText = new Date().toLocaleString();
@@ -239,6 +266,32 @@
         }
     }
 
+    function callAbout() {
+        if (window.android && window.android.getAboutInfo) {
+            const infoStr = window.android.getAboutInfo();
+            try {
+                const info = JSON.parse(infoStr);
+                const html = `
+                    <strong>应用名称:</strong> ${info.appName}<br>
+                    <strong>版本号:</strong> <span style="color: #3b82f6;">${info.versionName}</span><br>
+                    <strong>设备型号:</strong> ${info.model}<br>
+                    <strong>系统版本:</strong> Android ${info.osVersion}
+                `;
+                document.getElementById('aboutBody').innerHTML = html;
+                document.getElementById('aboutModal').style.display = 'flex';
+            } catch (e) {
+                document.getElementById('aboutBody').innerText = "获取信息解析失败: " + infoStr;
+                document.getElementById('aboutModal').style.display = 'flex';
+            }
+        } else {
+            alert("关于接口未就绪");
+        }
+    }
+
+    function closeAbout() {
+        document.getElementById('aboutModal').style.display = 'none';
+    }
+
     // 安卓回调函数：退出确认时执行
     function addExitText() {
         const tag = document.getElementById('inject-status');
@@ -258,6 +311,7 @@
     let clientId = "WEB_" + Math.random().toString(36).substr(2, 9);
     let heartbeatTimer = null;
     let reconnectTimer = null;
+    let isManualClose = false; // 新增：手动断开标记
     const logList = document.getElementById('log-list');
 
     document.getElementById('ws-client-id').innerText = clientId;
@@ -301,6 +355,7 @@
         const finalUrl = rawUrl.replace("{clientId}", clientId);
         
         addLog("正在尝试连接: " + finalUrl, false);
+        isManualClose = false; // 启动连接时重置标记
         
         try {
             ws = new WebSocket(finalUrl);
@@ -324,8 +379,12 @@
                 updateWSStatus(false);
                 addLog("连接关闭", false);
                 stopHeartbeat();
-                // 5秒后自动重连
-                reconnectTimer = setTimeout(connectWS, 5000);
+                
+                // 只有非手动断开（如网络异常）时才自动重连
+                if (!isManualClose) {
+                    addLog("异常断开，5秒后自动重连...", false);
+                    reconnectTimer = setTimeout(connectWS, 5000);
+                }
             };
 
             ws.onerror = (err) => {
@@ -339,6 +398,7 @@
 
     function toggleWS() {
         if (ws && ws.readyState === WebSocket.OPEN) {
+            isManualClose = true; // 标记为手动断开
             clearTimeout(reconnectTimer);
             reconnectTimer = null;
             ws.close();
diff --git a/app/src/main/java/com/stand/standapp/AndroidInterface.kt b/app/src/main/java/com/stand/standapp/AndroidInterface.kt
index c0d9128..5e06e18 100644
--- a/app/src/main/java/com/stand/standapp/AndroidInterface.kt
+++ b/app/src/main/java/com/stand/standapp/AndroidInterface.kt
@@ -46,14 +46,18 @@ class AndroidInterface(private val activity: MainActivity) {
      */
     @JavascriptInterface
     fun printRawData(data: String) {
-        Log.d("Print", "收到 H5 原始打印数据: $data")
-        Handler(Looper.getMainLooper()).post {
-            // 这里可以弹出一个选择框让用户选择打印机，或者根据配置自动连接
-            // 常见的打印流程：1. 解析数据 -> 2. 转换成 ESC/POS 指令 -> 3. 发送到通道
-            Toast.makeText(activity, "H5指令打印: $data", Toast.LENGTH_LONG).show()
-            
-            // 预留不同通道的入口
-            // connectAndPrint(data)
+        try {
+            Log.d("Print", "收到 H5 原始打印数据: $data")
+            Handler(Looper.getMainLooper()).post {
+                try {
+                    // 这里可以弹出一个选择框让用户选择打印机，或者根据配置自动连接
+                    Toast.makeText(activity, "H5指令打印: $data", Toast.LENGTH_SHORT).show()
+                } catch (e: Exception) {
+                    Log.e("Print", "Toast显示失败", e)
+                }
+            }
+        } catch (e: Exception) {
+            Log.e("Print", "指令解析失败", e)
         }
     }
 
@@ -63,7 +67,11 @@ class AndroidInterface(private val activity: MainActivity) {
     @JavascriptInterface
     fun startUpdate(apkUrl: String) {
         Handler(Looper.getMainLooper()).post {
-            UpdateManager(activity).checkUpdate()
+            try {
+                UpdateManager(activity).checkUpdate()
+            } catch (e: Exception) {
+                Log.e("Update", "启动更新检查失败", e)
+            }
         }
     }
 
@@ -73,7 +81,12 @@ class AndroidInterface(private val activity: MainActivity) {
     @JavascriptInterface
     fun exitApp() {
         Handler(Looper.getMainLooper()).post {
-            activity.showExitDialog()
+            try {
+                activity.showExitDialog()
+            } catch (e: Exception) {
+                Log.e("App", "显示退出弹窗失败", e)
+                activity.finish()
+            }
         }
     }
 
@@ -90,17 +103,39 @@ class AndroidInterface(private val activity: MainActivity) {
         }
     }
 
+    /**
+     * JS 调用：获取“关于”信息
+     */
+    @JavascriptInterface
+    fun getAboutInfo(): String {
+        return try {
+            val packageInfo = activity.packageManager.getPackageInfo(activity.packageName, 0)
+            val json = org.json.JSONObject()
+            json.put("appName", activity.getString(R.string.app_name))
+            json.put("versionName", packageInfo.versionName)
+            json.put("model", android.os.Build.MODEL)
+            json.put("osVersion", android.os.Build.VERSION.RELEASE)
+            json.toString()
+        } catch (e: Exception) {
+            "{ \"appName\": \"StandApp\", \"versionName\": \"1.0.0\" }"
+        }
+    }
+
     /**
      * JS 调用：保存消息记录
      */
     @JavascriptInterface
     fun saveMessage(message: String) {
-        val prefs = activity.getSharedPreferences("msg_records", Context.MODE_PRIVATE)
-        val currentMsgs = prefs.getString("history", "") ?: ""
-        val updatedMsgs = if (currentMsgs.isEmpty()) message else "$message|---|$currentMsgs"
-        // 限制保存最近5000条
-        val list = updatedMsgs.split("|---|").take(5000)
-        prefs.edit().putString("history", list.joinToString("|---|")).apply()
+        try {
+            val prefs = activity.getSharedPreferences("msg_records", Context.MODE_PRIVATE)
+            val currentMsgs = prefs.getString("history", "") ?: ""
+            val updatedMsgs = if (currentMsgs.isEmpty()) message else "$message|---|$currentMsgs"
+            // 限制保存最近5000条
+            val list = updatedMsgs.split("|---|").take(5000)
+            prefs.edit().putString("history", list.joinToString("|---|")).apply()
+        } catch (e: Exception) {
+            Log.e("Storage", "消息保存异常", e)
+        }
     }
 
     /**
@@ -108,8 +143,12 @@ class AndroidInterface(private val activity: MainActivity) {
      */
     @JavascriptInterface
     fun getMessages(): String {
-        val prefs = activity.getSharedPreferences("msg_records", Context.MODE_PRIVATE)
-        return prefs.getString("history", "") ?: ""
+        return try {
+            val prefs = activity.getSharedPreferences("msg_records", Context.MODE_PRIVATE)
+            prefs.getString("history", "") ?: ""
+        } catch (e: Exception) {
+            ""
+        }
     }
 
     /**
@@ -117,7 +156,13 @@ class AndroidInterface(private val activity: MainActivity) {
      */
     @JavascriptInterface
     fun clearMessages() {
-        activity.getSharedPreferences("msg_records", Context.MODE_PRIVATE).edit().clear().apply()
-        Toast.makeText(activity, "消息记录已清空", Toast.LENGTH_SHORT).show()
+        try {
+            activity.getSharedPreferences("msg_records", Context.MODE_PRIVATE).edit().clear().apply()
+            Handler(Looper.getMainLooper()).post {
+                Toast.makeText(activity, "记录已清空", Toast.LENGTH_SHORT).show()
+            }
+        } catch (e: Exception) {
+            Log.e("Storage", "清空记录异常", e)
+        }
     }
 }
diff --git a/app/src/main/java/com/stand/standapp/AppConfig.kt b/app/src/main/java/com/stand/standapp/AppConfig.kt
index de1777d..62d2893 100644
--- a/app/src/main/java/com/stand/standapp/AppConfig.kt
+++ b/app/src/main/java/com/stand/standapp/AppConfig.kt
@@ -11,7 +11,7 @@ object AppConfig {
     private const val KEY_PASSWORD = "saved_password"
     
     // 默认服务器地址
-    const val DEFAULT_SERVER_URL = "http://152.32.186.199:38080"
+    const val DEFAULT_SERVER_URL = "https://template.gyouzhe.com"
 
     private fun getPrefs(context: Context): SharedPreferences {
         return context.getSharedPreferences(PREF_NAME, Context.MODE_PRIVATE)
diff --git a/app/src/main/java/com/stand/standapp/MainActivity.kt b/app/src/main/java/com/stand/standapp/MainActivity.kt
index 2bdb293..ab87b68 100644
--- a/app/src/main/java/com/stand/standapp/MainActivity.kt
+++ b/app/src/main/java/com/stand/standapp/MainActivity.kt
@@ -16,7 +16,7 @@ class MainActivity : AppCompatActivity() {
 
     override fun onCreate(savedInstanceState: Bundle?) {
         super.onCreate(savedInstanceState)
-        
+
         try {
             setContentView(R.layout.activity_main)
 
@@ -25,6 +25,8 @@ class MainActivity : AppCompatActivity() {
 
             // 从配置中获取服务器地址
             val serverUrl = AppConfig.getServerUrl(this)
+            val finalUrl = "$serverUrl/example/print_demo.html?t=\${System.currentTimeMillis()}"
+            Log.d("MainActivity", "Loading URL: $finalUrl")
 
             mAgentWeb = AgentWeb.with(this)
                 .setAgentWebParent(container, LinearLayout.LayoutParams(-1, -1))
@@ -32,7 +34,7 @@ class MainActivity : AppCompatActivity() {
                 .addJavascriptInterface("android", AndroidInterface(this))
                 .createAgentWeb()
                 .ready()
-                .go("https://template.gyouzhe.com/example/print_demo.html?t=\${System.currentTimeMillis()}")
+                .go(finalUrl)
 
             // 配置 WebView 属性以支持 SSE 和跨域
             mAgentWeb?.let { agent ->
diff --git a/app/src/main/java/com/stand/standapp/UpdateManager.kt b/app/src/main/java/com/stand/standapp/UpdateManager.kt
index 19997ba..a9c8352 100644
--- a/app/src/main/java/com/stand/standapp/UpdateManager.kt
+++ b/app/src/main/java/com/stand/standapp/UpdateManager.kt
@@ -56,8 +56,8 @@ class UpdateManager(private val context: Context) {
             }
         } catch (e: Exception) { 0 }
 
-        val url = "$serverUrl/app-version/check-update?versionCode=$currentVersionCode"
-        
+        val url = "$serverUrl/api/app-version/check-update?versionCode=$currentVersionCode"
+
         val client = OkHttpClient()
         val request = Request.Builder().url(url).build()
 
@@ -67,26 +67,45 @@ class UpdateManager(private val context: Context) {
             }
 
             override fun onResponse(call: Call, response: Response) {
-                val body = response.body?.string() ?: return
                 try {
+                    val body = response.body?.string() ?: throw IOException("返回内容为空")
+                    if (!response.isSuccessful) {
+                        handler.post { Toast.makeText(context, "更新检查失败: ${response.code}", Toast.LENGTH_SHORT).show() }
+                        return
+                    }
+                    
                     val json = JSONObject(body)
                     if (json.getInt("code") == 0) {
                         val data = json.optJSONObject("data")
                         if (data != null) {
-                            val newVersionCode = data.getInt("versionCode")
+                            val newVersionCode = data.optInt("versionCode", 0)
                             if (newVersionCode > currentVersionCode) {
-                                val versionName = data.getString("versionName")
-                                val content = data.getString("updateContent")
-                                val id = data.getLong("id")
+                                val versionName = data.optString("versionName", "New")
+                                val content = data.optString("updateContent", "优化系统体验")
+                                val id = data.optLong("id", -1)
                                 
-                                (context as? AppCompatActivity)?.runOnUiThread {
-                                    showUpdateDialog(versionName, content, id)
+                                if (id != -1L) {
+                                    (context as? AppCompatActivity)?.runOnUiThread {
+                                        try {
+                                            showUpdateDialog(versionName, content, id)
+                                        } catch (e: Exception) {
+                                            Toast.makeText(context, "显示更新弹窗失败", Toast.LENGTH_SHORT).show()
+                                        }
+                                    }
                                 }
+                            } else {
+                                handler.post { Toast.makeText(context, "当前已是最新版本", Toast.LENGTH_SHORT).show() }
                             }
+                        } else {
+                            handler.post { Toast.makeText(context, "当前已是最新版本", Toast.LENGTH_SHORT).show() }
                         }
+                    } else {
+                        val msg = json.optString("msg", "未知错误")
+                        handler.post { Toast.makeText(context, "更新服务提示: $msg", Toast.LENGTH_SHORT).show() }
                     }
                 } catch (e: Exception) {
-                    Log.e("UpdateManager", "解析结果失败", e)
+                    Log.e("UpdateManager", "解析或处理更新结果失败", e)
+                    handler.post { Toast.makeText(context, "更新信息解析失败", Toast.LENGTH_SHORT).show() }
                 }
             }
         })
@@ -131,7 +150,7 @@ class UpdateManager(private val context: Context) {
             override fun onFailure(call: Call, e: IOException) {
                 handler.post {
                     progressDialog?.dismiss()
-                    Toast.makeText(context, "连接服务器失败: ${e.message}", Toast.LENGTH_LONG).show()
+                    Toast.makeText(context, "连接服务器失败", Toast.LENGTH_SHORT).show()
                 }
             }
 
@@ -139,12 +158,21 @@ class UpdateManager(private val context: Context) {
                 if (!response.isSuccessful) {
                     handler.post {
                         progressDialog?.dismiss()
-                        Toast.makeText(context, "下载失败: 错误码 ${response.code}", Toast.LENGTH_LONG).show()
+                        Toast.makeText(context, "下载失败: ${response.code}", Toast.LENGTH_SHORT).show()
                     }
                     return
                 }
                 val body = response.body
-                if (body != null) saveFileToPublic(body)
+                if (body != null) {
+                    try {
+                        saveFileToPublic(body)
+                    } catch (e: Exception) {
+                        handler.post {
+                            progressDialog?.dismiss()
+                            Toast.makeText(context, "保存失败", Toast.LENGTH_SHORT).show()
+                        }
+                    }
+                }
             }
         })
     }
