Center项目创建——数据初始化（Linux/Windows版本）

本博客主要讲述Center的模块安装配置和数据初始化

1、定义安装Install函数，IP地址由makefile自动传入，也就是用户自动传入

bool Install(std::string ip);

2、编写Install函数

#define  CENTER_CONF "ip
bool XCenter::Install(std::string ip)
{
	//1、生成配置文件，数据库的IP
	//ofstream默认输出
	ofstream of;
	of.open(CENTER_CONF);
	if (!of.is_open())
	{
		cout << "open config" << CENTER_CONF << "failed!" << endl;
		return false;
	}
	//写入,将ip写入到流当中
	of << ip;
	of.close();

	cout << "XCenter::Install! "<

3、初始化数据库Init函数

//初始化数据库
	bool Init();

4、编写Init函数

bool XCenter::Init()
{//只能调用一次，直接new一个
	my = new LXMysql();
	string ip = "";
	//读取数据库ip配置
	ifstream fs;
	fs.open(CENTER_CONF);
	if (!fs.is_open())
	{
		//配置项不存在
		cout << "Please install center" << endl;
		return false;
	}
	fs >> ip;
	fs.close();
	if (ip.empty())
	{
		cout << "ip is empty! Please install center" << endl;
		return false;
	}
	cout << "Init center" << ip << endl;
	if (!my->Connect(ip.c_str(), "fdd", "990107Wjl@", "test_fdd"))
	{
		cerr << "db Connect failed!" << endl;
		return false;
	}
	cout << "db Connect success!" << endl;
	return my->Query("set names utf8");
}

5、将Init放进Install函数里面，Install函数的最终定义为

bool XCenter::Install(std::string ip)
{
	//1、生成配置文件，数据库的IP
	//ofstream默认输出
	ofstream of;
	of.open(CENTER_CONF);
	if (!of.is_open())
	{
		cout << "open config" << CENTER_CONF << "failed!" << endl;
		return false;
	}
	//写入,将ip写入到流当中
	of << ip;
	of.close();

	//2、初始化表格数据
	//2.1、先连接上数据库
	if (!Init())
	{
		cerr << "Init failed!" << endl;
		return false;
	}
	cout << "XCenter::Install! "<

完整代码：

XCenter.h

#ifndef XCENTER_H
#define XCENTER_H
#include
#include"LXMysql.h"
class XCenter
{
public:
	static XCenter* Get()
	{
		//不考虑线程安全
		static XCenter a;
		return &a;
	}
	bool Install(std::string ip);
	//初始化数据库
	bool Init();
	~XCenter();
private:
	XCenter();
	LX::LXMysql* my = 0;
};

#endif // !XCENTER_H

XCenter.cpp

#include "XCenter.h"
#include
#include
#define CENTER_CONF "ip"
using namespace std;
using namespace LX;

bool XCenter::Install(std::string ip)
{
	//1、生成配置文件，数据库的IP
	//ofstream默认输出
	ofstream of;
	of.open(CENTER_CONF);
	if (!of.is_open())
	{
		cout << "open config" << CENTER_CONF << "failed!" << endl;
		return false;
	}
	//写入,将ip写入到流当中
	of << ip;
	of.close();

	//2、初始化表格数据
	//2.1、先连接上数据库
	if (!Init())
	{
		cerr << "Init failed!" << endl;
		return false;
	}
	cout << "XCenter::Install! "<> ip;
	fs.close();
	if (ip.empty())
	{
		cout << "ip is empty! Please install center" << endl;
		return false;
	}
	cout << "Init center" << ip << endl;
	if (!my->Connect(ip.c_str(), "fdd", "990107Wjl@", "test_fdd"))
	{
		cerr << "db Connect failed!" << endl;
		return false;
	}
	cout << "db Connect success!" << endl;
	return my->Query("set names utf8");
}


XCenter::XCenter()
{

}

XCenter::~XCenter()
{

}

Center.cpp

#include 
#include
#include"XCenter.h"
using namespace std;
//做一个系统的说明,使用说明
void Usage()
{
    cout << "=====================Center Usage" << endl;
    cout << "./center install 127.0.0.1" << endl;
}
int main(int argc,char*argv[])
{//argc参数的数量
    string cmd;
    //安装系统
    if (argc > 1)
    {
        cmd = argv[1];
    }
    if (cmd == "install")
    {
        cout << "Begin install center!" << endl;
        //argv[1]第一个参数install，第二个argv[2]是ip
        //用户可能只是输入了install而没有输入ip，做一个判断
        if (argc < 3)
        {
            Usage();
            return 0;//在makefile里面-1可能认为出错，还是return 0
        }
        XCenter::Get()->Install(argv[2]);
    }
    std::cout << "Hello World!\n";
    return 0;
}

makefile

center:Center.cpp XCenter.cpp XCenter.h
	#-lLXMysql动态链接库，对应的是libLXMysql.so
	g++ $^ -o $@ -I ../../LXMysql/LXMysql -lLXMysql
	./$@ install (你的IP)

clean:
	rm -rf *.o
	rm -rf center