C++ http_request::get_arg方法代码示例

void ModbusService::render_GET(const http_request& req, http_response** res)
{
	//api/modbus/holdings/{connectorname}/{devaddress}/{baseaddress}/{count}
	string connectorName = req.get_arg("connectorname");
	string strDevAddress = req.get_arg("devaddress");
	string strBaseAddress = req.get_arg("baseaddress");
	string strCount = req.get_arg("value");

	int devAddress = Converter::stoi(strDevAddress);
	int baseAddress = Converter::stoi(strBaseAddress);
	int count = Converter::stoi(strCount);

	Document document;
	StringBuffer buffer;
	PrettyWriter<StringBuffer> wr(buffer);
	Value jsonvalue;

	IModbus* modbus = mm->Find(connectorName);
	if (modbus!=NULL)
	{
		uint16_t* target = new uint16_t[count];
		if (modbus->getHoldings(devAddress,baseAddress,count,target))
		{
			document.SetArray();
			for(int i=0;i<count;i++)
			{
				Value jsonvalue;
				jsonvalue.SetUint(target[i]);
				document.PushBack(jsonvalue, document.GetAllocator());
			}
		}
		else
		{
			document.SetObject();

			jsonvalue.SetObject();
			jsonvalue.SetString("Error",document.GetAllocator());
			document.AddMember("Result",jsonvalue,document.GetAllocator());
			jsonvalue.SetString("Modbus getHoldings failed",document.GetAllocator());
			document.AddMember("Message",jsonvalue,document.GetAllocator());
		}

		delete[] target;
		target = NULL;
	}
	else
	{
		document.SetObject();
		jsonvalue.SetString("Error",document.GetAllocator());
		document.AddMember("Result",jsonvalue,document.GetAllocator());
		jsonvalue.SetString("Connector not found",document.GetAllocator());
		document.AddMember("Message",jsonvalue,document.GetAllocator());
	}

	document.Accept(wr);
	std::string json = buffer.GetString();
	*res = new http_response(http_response_builder(json, 200,"application/json").string_response());
}

void FoldersService::render_DELETE(const http_request& req, http_response** res)
{
	if (req.get_user()=="a" && req.get_pass()=="a")
	{
		string strid = req.get_arg("id");

		CUUID id = CUUID::Parse(strid);
		HisDevFolder* folder = dynamic_cast<HisDevFolder*>(root->GetFolder()->Find(id));

		if (folder!=NULL)
		{
			HisDevFolder* parentfolder = dynamic_cast<HisDevFolder*>(folder->GetParent());
			parentfolder->Remove(id);
			delete(folder);
			root->Save();

			*res = new http_string_response("", 200, "application/json");
			return;
		}
	}
	else
	{
		string message = "Autentication error";
		*res = new http_string_response(message.c_str(), 401, "application/json");
		return;
	}

	*res = new http_string_response("", 403, "application/json");

}

void ModbusService::render_PUT(const http_request& req, http_response** res)
{
	string connectorName = req.get_arg("connectorname");
	string strDevAddress = req.get_arg("devaddress");
	string strBaseAddress = req.get_arg("baseaddress");
	string strValue = req.get_arg("value");

	int devAddress = Converter::stoi(strDevAddress);
	int baseAddress = Converter::stoi(strBaseAddress);
	int value = Converter::stoi(strValue);

	Document document;
	StringBuffer buffer;
	PrettyWriter<StringBuffer> wr(buffer);
	document.SetObject();
	Value jsonvalue;

	IModbus* modbus = mm->Find(connectorName);
	if (modbus!=NULL)
	{

		if (modbus->setHolding(devAddress,baseAddress,value))
		{
			jsonvalue.SetString("OK",document.GetAllocator());
			document.AddMember("Result",jsonvalue,document.GetAllocator());
		}
		else
		{
			jsonvalue.SetString("Error",document.GetAllocator());
			document.AddMember("Result",jsonvalue,document.GetAllocator());
			jsonvalue.SetString("Modbus setHolding failed",document.GetAllocator());
			document.AddMember("Message",jsonvalue,document.GetAllocator());
		}
	}
	else
	{
		jsonvalue.SetString("Error",document.GetAllocator());
		document.AddMember("Result",jsonvalue,document.GetAllocator());
		jsonvalue.SetString("Connector not found",document.GetAllocator());
		document.AddMember("Message",jsonvalue,document.GetAllocator());
	}
	document.Accept(wr);
	std::string json = buffer.GetString();
	*res = new http_response(http_response_builder(json, 200,"application/json").string_response());
}

//using the render method you are able to catch each type of request you receive
void cat_resource::render(const http_request& req, http_response** res)
{
    string file = req.get_arg("file");
    cout << "file: " << file << endl;

    //it is possible to send a response initializing an http_string_response
    //that reads the content to send in response from a string.
    *res = new http_response(http_response_builder(file, 200).file_response());
}

//using the render method you are able to catch each type of request you receive
void hello_world_resource::render(const http_request& req, http_response** res)
{
    //it is possible to store data inside the resource object that can be altered
    //through the requests
    std::cout << "Data was: " << data << std::endl;
    std::string datapar = req.get_arg("data");
    set_some_data(datapar == "" ? "no data passed!!!" : datapar);
    std::cout << "Now data is:" << data << std::endl;

    //it is possible to send a response initializing an http_string_response
    //that reads the content to send in response from a string.
    *res = new http_response(http_response_builder("Hello World!!!", 200).string_response());
}

void FoldersService::render_PUT(const http_request& req, http_response** res)
{
	if (req.get_user()=="a" && req.get_pass()=="a")
	{
		string strid = req.get_arg("id");
		string content = req.get_content();

		if (UpdateFolder(strid,content))
		{
			*res = new http_string_response("", 200, "application/json");
			return;
		}
	}
	else
	{
		string message = "Autentication error";
		*res = new http_string_response(message.c_str(), 401, "application/json");
		return;
	}

	*res = new http_string_response("", 403, "application/json");

}

void FoldersService::render_GET(const http_request& req, http_response** res)
{
	Document respjsondoc;
	respjsondoc.SetArray();

	string strid = req.get_arg("id");
	HisDevFolder* folder = root->GetFolder();
	string path = req.get_path();
	if(!strid.empty())
	{
		CUUID id = CUUID::Parse(strid);
		folder = dynamic_cast<HisDevFolder*>(folder->Find(id));
	}

	if (path.find("/api/folders")!=string::npos)
	{
		if (folder!=NULL)
		{
			FoldersToJson(folder,respjsondoc);
		}
	}
	else if (path.find("/api/folder")!=string::npos)
	{
		if (folder!=NULL)
		{
			FolderToJson(folder,respjsondoc);
		}
	}


	StringBuffer buffer;
	PrettyWriter<StringBuffer> wr(buffer);
	respjsondoc.Accept(wr);
	std::string json = buffer.GetString();
	*res = new http_string_response(json, 200, "application/json");
}

 void render_POST(const http_request& req, http_response** res)
 {
     *res = new http_string_response(
             req.get_arg("arg1")+req.get_arg("arg2"), 200, "text/plain"
     );
 }