代码:客户端Qt C++存储在sqlite的智能家居状态表空调温度加湿器湿度窗帘高度模式睡眠模式:空调温度27℃加湿器湿度50窗帘15米;日常模式:空调温度25℃加湿器湿度60窗帘05米米;节能模式:空调温度26℃加湿器湿度40窗帘15米;通过异步通信TCPIP方式与linuxC服务器连接将智能家居状态表传到服务器做数据分析和处理通过服务器的分发给客户端统计模块显示能够采取最合适策略调整家居系统状
以下是一个示例代码,演示了如何在客户端使用Qt C++连接到SQLite数据库并将智能家居状态表传输到Linux C服务器。
#include <QtNetwork>
#include <QtSql>
// 定义智能家居状态结构
struct HomeStatus {
int temperature;
int humidity;
double curtainHeight;
QString mode;
};
// 数据库连接参数
const QString DB_PATH = "/path/to/database.db";
// 服务器地址和端口
const QString SERVER_ADDRESS = "192.168.1.100";
const int SERVER_PORT = 1234;
// 连接到SQLite数据库
bool connectToDatabase() {
QSqlDatabase db = QSqlDatabase::addDatabase("QSQLITE");
db.setDatabaseName(DB_PATH);
if (!db.open()) {
qDebug() << "Failed to connect to the database.";
return false;
}
return true;
}
// 获取智能家居状态
HomeStatus getHomeStatus() {
HomeStatus status;
QSqlQuery query;
query.prepare("SELECT * FROM home_status");
if (!query.exec()) {
qDebug() << "Failed to query home status.";
return status;
}
if (query.next()) {
status.temperature = query.value(0).toInt();
status.humidity = query.value(1).toInt();
status.curtainHeight = query.value(2).toDouble();
status.mode = query.value(3).toString();
}
return status;
}
// 将智能家居状态发送到服务器
void sendHomeStatusToServer(const HomeStatus& status) {
QTcpSocket socket;
socket.connectToHost(SERVER_ADDRESS, SERVER_PORT);
if (!socket.waitForConnected()) {
qDebug() << "Failed to connect to the server.";
return;
}
QByteArray data;
QDataStream stream(&data, QIODevice::WriteOnly);
stream << status.temperature << status.humidity << status.curtainHeight << status.mode;
socket.write(data);
socket.waitForBytesWritten();
socket.disconnectFromHost();
}
int main(int argc, char *argv[]) {
QCoreApplication app(argc, argv);
// 连接到数据库
if (!connectToDatabase()) {
return 1;
}
// 获取智能家居状态
HomeStatus status = getHomeStatus();
// 将智能家居状态发送到服务器
sendHomeStatusToServer(status);
return app.exec();
}
在Linux C服务器端,您可以使用socket库来接收来自客户端的智能家居状态数据,并进行进一步的分析和处理。以下是一个简单的示例代码:
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/socket.h>
#include <netinet/in.h>
// 服务器监听端口
#define SERVER_PORT 1234
// 智能家居状态结构
struct HomeStatus {
int temperature;
int humidity;
double curtainHeight;
char mode[20];
};
int main() {
int serverSocket, clientSocket;
struct sockaddr_in serverAddress, clientAddress;
socklen_t clientAddressLength;
char buffer[1024];
// 创建服务器套接字
serverSocket = socket(AF_INET, SOCK_STREAM, 0);
// 设置服务器地址
serverAddress.sin_family = AF_INET;
serverAddress.sin_port = htons(SERVER_PORT);
serverAddress.sin_addr.s_addr = INADDR_ANY;
// 绑定服务器套接字到地址
bind(serverSocket, (struct sockaddr *)&serverAddress, sizeof(serverAddress));
// 监听连接
listen(serverSocket, 5);
printf("Server started, waiting for connections...\n");
while (1) {
// 接受客户端连接
clientAddressLength = sizeof(clientAddress);
clientSocket = accept(serverSocket, (struct sockaddr *)&clientAddress, &clientAddressLength);
printf("Client connected.\n");
// 从客户端接收数据
memset(buffer, 0, sizeof(buffer));
recv(clientSocket, buffer, sizeof(buffer), 0);
// 解析智能家居状态
struct HomeStatus status;
memcpy(&status.temperature, buffer, sizeof(int));
memcpy(&status.humidity, buffer + sizeof(int), sizeof(int));
memcpy(&status.curtainHeight, buffer + 2 * sizeof(int), sizeof(double));
memcpy(status.mode, buffer + 2 * sizeof(int) + sizeof(double), sizeof(status.mode));
// 进行数据分析和处理
printf("Received home status:\n");
printf("Temperature: %d\n", status.temperature);
printf("Humidity: %d\n", status.humidity);
printf("Curtain Height: %f\n", status.curtainHeight);
printf("Mode: %s\n", status.mode);
// 关闭客户端套接字
close(clientSocket);
printf("Client disconnected.\n");
}
// 关闭服务器套接字
close(serverSocket);
return 0;
}
以上示例代码仅提供了一个基本的框架,您可能需要根据您的具体需求进行调整和扩展
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