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cppcms

README.md

CppCMS 安装

sudo apt-get install cmake libpcre3-dev zlib1g-dev libgcrypt11-dev libicu-dev python
git clone https://github.com/artyom-beilis/cppcms.git
cd cppcms && mkdir build && cd build && cmake .. && make && make test && sudo make install

创建 Hello World

  • cppcms/application.h the class application that every CppCMS application is derived from. 每个应用都继承自这个 application 类。

  • cppcms/applications_pool.h class applications_pool - the class that manages user applications - creates new per HTTP request and caches them for future use. 作为管理用户应用程序的 applications_pool 类，创建新的 HTTP 请求并将其缓存以供将来使用。

  • cppcms/service.h the service - central event loop of the network service. service 是整个网络服务中的中央事件循环服务。

  • cppcms/http_response.h the class we write our response to the client with. 使用该类发送我们的响应给对应的客户端连接。

  • 新建文件 hello.cpp
#include <cppcms/application.h>
#include <cppcms/applications_pool.h>
#include <cppcms/service.h>
#include <cppcms/http_response.h>
#include <iostream>

// 定义第一个应用类 hello
class hello : public cppcms::application {
public:
	hello(cppcms::service &srv) :
	cppcms::application(srv)
	{
	}
	virtual void main(std::string url);
};

// 覆盖成员函数 cppcms::application::main，返回响应数据
void hello::main(std::string /*url*/)
{
	response().out() <<
	"<html>\n"
	"<body>\n"
	"  <h1>Hello World</h1>\n"
	"</body>\n"
	"</html>\n";
}

int main(int argc,char ** argv)
{
	try {
		// 创建服务类，解析命令行参数并搜索配置选项
		cppcms::service srv(argc,argv);

		// 告知 applications_pool 类使用应用类 hello
		srv.applications_pool().mount(
			cppcms::applications_factory<hello>()
		);

		// 运行事件循环
		srv.run();
	} catch(std::exception const &e) {
		std::cerr << e.what() << std::endl;
	}
}
  • 编译
c++ -Wl,-rpath=/usr/local/lib hello.cpp -lcppcms -o hello
  • 创建配置文件 config.js

配置服务监听端口为 8080，使用 HTTP 协议。 提供 script_names 参数，定义的虚拟 CGI 脚本路径或简单一句话，我们的应用程序需要通过这个路径才能访问。

{
	"service" : {
	"api" : "http",
	"port" : 8080
	},
	"http" : {
	"script_names" : [ "/hello" ]
	}
}
  • 运行
 ./hello -c config.js

打开浏览器访问 http://localhost:8080/hello 看输出结果

FastCGI

{  
	"service" : {  
		"api" : "fastcgi",  
		"socket" : "/tmp/hello-fcgi-socket"   
	}  
}

使用 CppDB

http://cppcms.com/sql/cppdb/

  • 编译 CppDB
svn co http://cppcms.svn.sourceforge.net/svnroot/cppcms/cppdb/trunk cppdb
cd cppdb && mkdir build && cd build && cmake .. && make && sudo make install
  • Sqlite3 读写
	try {
		cppdb::session sql("sqlite3:db=db.db");
		
		sql << "DROP TABLE IF EXISTS test" << cppdb::exec;

		sql<<   "CREATE TABLE test ( "
			"   id   INTEGER PRIMARY KEY AUTOINCREMENT NOT NULL, "
			"   n	INTEGER,"
			"   f	REAL, "
			"   t	TIMESTAMP,"
			"   name TEXT "
			")  " << cppdb::exec;
		
		std::time_t now_time = std::time(0);
		
		std::tm now = *std::localtime(&now_time);

		cppdb::statement stat;
		
		stat = sql << 
			"INSERT INTO test(n,f,t,name) "
			"VALUES(?,?,?,?)"
			<< 10 << 3.1415926565 << now <<"Hello 'World'";

		stat.exec();
		std::cout<<"ID: "<<stat.last_insert_id() << std::endl;
		std::cout<<"Affected rows "<<stat.affected()<<std::endl;
		
		stat.reset();

		stat.bind(20);
		stat.bind_null();
		stat.bind(now);
		stat.bind("Hello 'World'");
		stat.exec();

		cppdb::result res = sql << "SELECT id,n,f,t,name FROM test";

		while(res.next()) {
			double f=-1;
			int id,k;
			std::tm atime;
			std::string name;
			res >> id >> k >> f >> atime >> name;
			std::cout <<id << ' '<<k <<' '<<f<<' '<<name<<' '<<asctime(&atime)<< std::endl;
		}

		res = sql << "SELECT n,f FROM test WHERE id=?" << 1 << cppdb::row;
		if(!res.empty()) {
			int n = res.get<int>("n");
			double f=res.get<double>(1);
			std::cout << "The values are " << n <<" " << f << std::endl;
		}
	} catch(std::exception const &e) {
		std::cerr << "ERROR: " << e.what() << std::endl;
		return 1;
	}
  • 编译
c++ -Wl,-rpath=/usr/local/lib hello.cpp -lcppcms -lcppdb -o hello
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