修复

StandAPP/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")
+        try {
-        Handler(Looper.getMainLooper()).post {
+            Log.d("Print", "收到 H5 原始打印数据: $data")
-            // 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
+            Handler(Looper.getMainLooper()).post {
-            // 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
+                try {
-            Toast.makeText(activity, "H5指令打印: $data", Toast.LENGTH_LONG).show()
+                    // 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()
-            // 预留不同通道的入口
+                } catch (e: Exception) {
-            // connectAndPrint(data)
+                    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()
+            }
         }
     }
 
@@ -95,12 +108,16 @@ class AndroidInterface(private val activity: MainActivity) {
      */
     @JavascriptInterface
     fun saveMessage(message: String) {
-        val prefs = activity.getSharedPreferences("msg_records", Context.MODE_PRIVATE)
+        try {
-        val currentMsgs = prefs.getString("history", "") ?: ""
+            val prefs = activity.getSharedPreferences("msg_records", Context.MODE_PRIVATE)
-        val updatedMsgs = if (currentMsgs.isEmpty()) message else "$message|---|$currentMsgs"
+            val currentMsgs = prefs.getString("history", "") ?: ""
-        // 限制保存最近5000条
+            val updatedMsgs = if (currentMsgs.isEmpty()) message else "$message|---|$currentMsgs"
-        val list = updatedMsgs.split("|---|").take(5000)
+            // 限制保存最近5000条
-        prefs.edit().putString("history", list.joinToString("|---|")).apply()
+            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 +125,12 @@ class AndroidInterface(private val activity: MainActivity) {
      */
     @JavascriptInterface
     fun getMessages(): String {
-        val prefs = activity.getSharedPreferences("msg_records", Context.MODE_PRIVATE)
+        return try {
-        return prefs.getString("history", "") ?: ""
+            val prefs = activity.getSharedPreferences("msg_records", Context.MODE_PRIVATE)
+            prefs.getString("history", "") ?: ""
+        } catch (e: Exception) {
+            ""
+        }
     }
 
     /**
@@ -117,7 +138,13 @@ class AndroidInterface(private val activity: MainActivity) {
      */
     @JavascriptInterface
     fun clearMessages() {
-        activity.getSharedPreferences("msg_records", Context.MODE_PRIVATE).edit().clear().apply()
+        try {
-        Toast.makeText(activity, "消息记录已清空", Toast.LENGTH_SHORT).show()
+            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)
+        }
     }
 }

StandAPP/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)

StandAPP/app/src/main/java/com/stand/standapp/MainActivity.kt

@@ -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 ->

StandAPP/app/src/main/java/com/stand/standapp/UpdateManager.kt

@@ -56,7 +56,7 @@ 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 versionName = data.optString("versionName", "New")
-                                val content = data.getString("updateContent")
+                                val content = data.optString("updateContent", "优化系统体验")
-                                val id = data.getLong("id")
+                                val id = data.optLong("id", -1)
                                 
-                                (context as? AppCompatActivity)?.runOnUiThread {
+                                if (id != -1L) {
-                                    showUpdateDialog(versionName, content, id)
+                                    (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()
+                        }
+                    }
+                }
             }
         })
     }