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 -
cppcms/application.hthe class application that every CppCMS application is derived from. 每个应用都继承自这个application类。 -
cppcms/applications_pool.hclass 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.hthe 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.hthe 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
{
"service" : {
"api" : "fastcgi",
"socket" : "/tmp/hello-fcgi-socket"
}
}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