增加了数据库下载的功能

src/pPowerManger/PowerManger.cpp

@@ -123,14 +123,7 @@ bool PowerManger::Iterate()
   else
     m_FsmThread.Stop();
   // 数据库测试
-  PowerData data;
-  // data.id = 1;
-  data.timestamp = "2023-05-22 10:00:00";
-  data.voltage = 12.3 + rand() % 100 / 100.0;
-  data.current = 4.5 + rand() % 100 / 100.0;
-  data.power = 56.7 + rand() % 100 / 100.0;
-  data.temperature = 25.0 + rand() % 100 / 100.0; 
-  m_db->insertPowerData(data.voltage, data.current, data.power, data.temperature);
+
   //3. 输出报告
   buildPowerSysReport();
   //4. 打印错误信息
@@ -281,7 +274,6 @@ bool PowerManger::FsmLoop()
   return true;
 }
 
-
 bool PowerManger::updatePmState()
 {
   

src/pPowerManger/SQLiteDB.cpp

@@ -97,6 +97,32 @@ void SQLiteDB::insertStateData(StateData stateData) {
         std::cerr << "Error preparing statement: " << sqlite3_errmsg(m_db) << std::endl;
     }
 }
+bool SQLiteDB::isDatabaseConnected(const std::string& path, const std::string& dbName) {
+    if (!m_db) return false;
+    
+    // 尝试执行简单查询验证连接
+    const char* sql = "SELECT name FROM sqlite_master WHERE type='table';";
+    char* errMsg = nullptr;
+    
+    int rc = sqlite3_exec(m_db, sql, nullptr, nullptr, &errMsg);
+    if (rc != SQLITE_OK) {
+        std::cerr << "Database connection check failed: " << errMsg << std::endl;
+        sqlite3_free(errMsg);
+        return false;
+    }
+    
+    // 检查数据库路径和名称是否匹配
+    std::string fullPath = path + "/" + dbName;
+    const char* dbPath = sqlite3_db_filename(m_db, "main");
+    
+    if (!dbPath || fullPath != dbPath) {
+        std::cerr << "Database path mismatch: expected " << fullPath << ", got " << (dbPath ? dbPath : "null") << std::endl;
+        return false;
+    }
+    
+    return true;
+}
+
 std::vector<PowerData> SQLiteDB::getPowerData(int limit) {
     std::vector<PowerData> data;
     if (!m_db) return data;
@@ -124,4 +150,4 @@ std::vector<PowerData> SQLiteDB::getPowerData(int limit) {
     }
 
     return data;
-}
+}

src/pPowerManger/SQLiteDB.h

@@ -35,6 +35,9 @@ public:
     void insertStateData(StateData stateData);
     std::vector<PowerData> getPowerData(int limit = 100);
 
+    //使用函数
+    bool isDatabaseConnected(const std::string& path, const std::string& dbName);
+
 private:
     sqlite3* m_db;
 };