oaptt搭建http服务的过程详解

第oaptt搭建http服务的过程详解Oat++介绍

Oat++主页：https://oatpp.io

Oat++文档：https://oatpp.io/docs/start

GitHub地址：/oatpp/oatpp

编译Oat++

环境要求

Oat++的编译过程很简单，只需要有基本的开发环境就行了：

Git编译器支持的C++版本=11MakeCMake版本=3.1

如果没有的话，按照下述步骤安装，以Ubuntu为例：

sudoaptinstallgit

sudoaptinstallcmake

sudoaptinstallbuild-essential

编译安装

下载Oat++源码：

gitclone/oatpp/oatpp.git

随后，执行编译安装四部曲：

cdoatpp/

mkdirbuildcdbuild

cmake..

sudomakesudomakeinstall

hello示例程序

为了演示Oat++，我们从最简单的Hello,World！开始！

创建一个CMake项目，CMakeLists.txt配置如下：

cmake_minimum_required(VERSION3.1)

project(helloworld)

set(CMAKE_CXX_STANDARD11)

set(SOURCE_FILESmain.cpphandler.h)

#查找oatpp依赖

find_package(oatppREQUIRED)

add_executable(${PROJECT_NAME}${SOURCE_FILES})

#将目标文件与库文件进行链接

target_link_libraries(${PROJECT_NAME}oatpp::oatpp)

handler.h

//handler.h

#ifndefHANDLER_H

#defineHANDLER_H

#include"oatpp/web/server/HttpRequestHandler.hpp"

#defineO_UNUSED(x)(void)x;

//自定义请求处理程序

classHandler:publicoatpp::web::server::HttpRequestHandler

public:

//处理传入的请求，并返回响应

std::shared_ptrOutgoingResponsehandle(conststd::shared_ptrIncomingRequestrequest)override{

O_UNUSED(request);

returnResponseFactory::createResponse(Status::CODE_200,"Hello,World!");

#endif//HANDLER_H

main.cpp

//main.cpp

#include"oatpp/web/server/HttpConnectionHandler.hpp"

#include"oatpp/network/tcp/server/ConnectionProvider.hpp"

#include"oatpp/network/Server.hpp"

#include"handler.h"

voidrun()

//为HTTP请求创建路由器

autorouter=oatpp::web::server::HttpRouter::createShared();

//路由GET-"/hello"请求到处理程序

router-route("GET","/hello",std::make_sharedHandler

//创建HTTP连接处理程序

autoconnectionHandler=oatpp::web::server::HttpConnectionHandler::createShared(router);

//创建TCP连接提供者

autoconnectionProvider=oatpp::network::tcp::server::ConnectionProvider::createShared({"",8080,oatpp::network::Address::IP_4});

//创建服务器，它接受提供的TCP连接并将其传递给HTTP连接处理程序

oatpp::network::Serverserver(connectionProvider,connectionHandler);

//打印服务器端口

OATPP_LOGI("MyApp","Serverrunningonport%s",connectionProvider-getProperty("port").getData());

//运行服务器

server.run();

intmain()

//初始化oatpp环境

oatpp::base::Environment::init();

//运行应用

run();

//销毁oatpp环境

oatpp::base::Environment::destroy();

return0;

编译helloworld程序

mkdirbuild

cdbuild

cmake..

./helloworld

运行结果如下

HTTP模拟Onvif功能

启动HTTP服务器模拟Onvif服务端，接收Onvif客户端发送过来的http请求并响应xml数据

项目背景和解决方案点这里

CMakeList.txt

cmake_minimum_required(VERSION3.1)

project(helloworld)

set(CMAKE_CXX_STANDARD11)

set(SOURCE_FILESmain.cpphandler.h)

#查找oatpp依赖

find_package(oatppREQUIRED)

add_executable(${PROJECT_NAME}${SOURCE_FILES})

#将目标文件与库文件进行链接

target_link_libraries(${PROJECT_NAME}oatpp::oatpp)

handler.h

//handler.h

#ifndefHANDLER_H

#defineHANDLER_H

#include"oatpp/web/server/HttpRequestHandler.hpp"

#include"oatpp/web/protocol/http/incoming/Response.hpp"

#includefcntl.h

#includeunistd.h

#includesys/stat.h

#includeunistd.h

#defineO_UNUSED(x)(void)x;

#defineXML_INFO"xmlversion=\"1.0\"encoding=\"utf-8\"standalone=\"yes\""

//自定义请求处理程序

classHandler:publicoatpp::web::server::HttpRequestHandler

public:

//处理传入的请求，并返回响应

std::shared_ptrOutgoingResponsehandle(conststd::shared_ptrIncomingRequestrequest)override{

//O_UNUSED(request);

OATPP_LOGI("MyApp","newconnect..");

//printf("method:%d");

intfileFd=open("../test.xml",O_RDONLY);

if(fileFd0)

return0;

//获取文件大小

structstatfileStat;

fstat(fileFd,fileStat);

intfileSize=fileStat.st_size;

printf("fd:%d,filesize%d\n",fileFd,fileStat.st_size);

//申请空间存储xml数据

charbuf[1024*5];

memset(buf,'\0',sizeof(buf));

read(fileFd,buf,sizeof(buf));

printf("newconnect..\n");

printf("buf:%s\n\n",buf);

//创建响应并添加请求头

std::shared_ptrOutgoingResponseresp=ResponseFactory::createResponse(Status::CODE_200,buf);

resp-putHeader("Content-Type","application/soap+xml;charset=utf-8;action=\"/ver20/media/wsdl/GetOSDs\"");

//resp-putHeader("charset","utf-8");

//resp-putHeader("action","\"/ver20/media/wsdl/GetOSDs\"");

resp-putHeader("X-Frame-Options","SAMEORIGIN");

close(fileFd);

returnresp;//响应请求

#endif//HANDLER_H

main.cpp

//main.cpp

#include"oatpp/web/server/HttpConnectionHandler.hpp"

#include"oatpp/network/tcp/server/ConnectionProvider.hpp"

#include"oatpp/network/Server.hpp"

#include"handler.h"

voidrun()

//为HTTP请求创建路由器

autorouter=oatpp::web::server::HttpRouter::createShared();

//路由GET-"/hello"请求到处理程序

router-route("POST","/onvif/Media2",std::make_sharedHandler

//创建HTTP连接处理程序

autoconnectionHandler=oatpp::web::server::HttpConnectionHandler::createShared(router);

//创建TCP连接提供者

autoconnectionProvider=oatpp::network::tcp::server::ConnectionProvider::createShared({"",7681,oatpp::network::Address::IP_4});

//创建服务器，它接受提供的TCP连接并将其传递给HTTP连接处理程序

oatpp::network::Serverserver(connectionProvider,connectionHandler);

//打印服务器端口

OATPP_LOGI("MyApp","Serverrunningonport%s",connectionProvider-getProperty("port").getData());

//运行服务器

server.run();

intmain()

//初始化oatpp环境

oatpp::base::Environment::init();

//运行应用

run();

//销毁oatpp环境

oatpp::base: