CORAB命名服務實現的簡單日程管理軟件

源碼下載：http://download.csdn.net/detail/javacmm2012/5575805

1. CORBA準備：http://blog.csdn.net/javacmm2012/article/details/9005429

2 . 編寫IDL文件，作爲靜態庫供客戶端和服務端調用，代碼如下：

#ifndef IUserCfgServant_IDL_
#define IUserCfgServant_IDL_

struct  sDataTime
{
	/*日期時間類型*/
	short iYear;
	short iMonth;
	short iDay;
	short iHour;
	short iMinute;
	short iSeconds;
};

struct sItem
{
	/*用戶Item數據結構*/
	short iItemId;	/*對每一個用戶來說的唯一Id*/
	sDataTime sStartTime;
	sDataTime sEndTime;
	string strLabel;
};

typedef sequence<sItem> seqItem;

struct sUser
{
	short iUserId;			/*用戶唯一Id*/
	string strUserName;		/*用戶名*/
	string strPassword;		/*密碼*/
	seqItem seqItems;		/*用戶的item集合*/
	
};

interface IUserCfgServant
{
	//返回字符串
	string echoString(in string mesg);

	//加法運算
	long add(in long p1,in long p2);

	/// 用戶註冊
	boolean addUser( in string username, in string password );

	/// 查詢用戶是否存在，可用作客戶端登陸與查詢用戶信息
	boolean queryUser( in string username, in string password, out sUser user );

	/// 更新用戶信息，可用作刪除Item，或者增加Item來用
	boolean updateUserInfo( in sUser user );

	
};

#endif ///<IUserCfgServant_IDL_

然後使用自定義工具tao_idl編譯該文件，在VS2012配置如下：

注意：如果沒有tao_idl.exe，則轉向CORBA工程編譯工程名爲TAO_IDL_EXE的工程，會在\ACE_wrappers\bin下生成tao_idl.exe

此後，將生成的*S.h*C.h*S.cpp*C.cpp添加到IDL工程，然後編譯生成靜態庫IDL.lib

3. 編寫服務端工程

新建個新工程，命名爲Server，新建個類CIUserCfgServant_i用於實現接口文件IDL中定義的所有方法，代碼如下：

#ifndef ECHO_I_H_
#define ECHO_I_H_

#include <iostream>
#include <iomanip>
#include <fstream>
#include <sstream>
#include <vector>
#include "../IDL/IUserCfgServantS.h"

//命名服務類
#include "orbsvcs/CosNamingC.h"

class CIUserCfgServant_i:public POA_IUserCfgServant,public PortableServer::RefCountServantBase
{
public:
	CIUserCfgServant_i();
	virtual ~CIUserCfgServant_i();
	
	virtual char* echoString(const char* mesg);

	//實現加法運算
	virtual CORBA::Long add(::CORBA::Long p1, ::CORBA::Long p2);

	//增加用戶
	virtual CORBA::Boolean addUser (
		const char * username,
		const char * password);

	//查詢用戶
	virtual CORBA::Boolean queryUser (
		const char * username,
		const char * password,
		sUser_out user);

	//更新用戶信息
	virtual CORBA::Boolean updateUserInfo (
		const sUser & user);

private:
	bool writeToFile();		//將對象信息存入文件
	bool readFromFile();	//讀取用戶信息

private:
	std::vector<sUser> m_vecUser;	//所有用戶信息
	fstream m_filedata;				//文件讀取用
};


#endif  ///<ECHO_I_H_

編寫註冊命名服務（IUserCfgServant）的代碼，如下：

#include <iostream>
#include "IUserCfgServant_i.h"
using namespace std;


int main(int argc, char * argv[])
{
	try {
		//初始化CORBA
		CORBA::ORB_var orb = CORBA::ORB_init(argc, argv);

		CORBA::Object_var poa_object =
			orb->resolve_initial_references ("RootPOA");
		PortableServer::POA_var poa =
			PortableServer::POA::_narrow (poa_object.in ());
		PortableServer::POAManager_var poa_manager =
			poa->the_POAManager ();
		poa_manager->activate ();

		CORBA::Object_var naming_context_object  = orb->resolve_initial_references("NameService");

		CosNaming::NamingContext_var naming_context = 
			CosNaming::NamingContext::_narrow (naming_context_object.in ());

		CosNaming::Name name (1);
		name.length (1);
		 name[0].id = CORBA::string_dup ("IUserCfgServant");

		 CIUserCfgServant_i* myecho = new CIUserCfgServant_i();
		 IUserCfgServant_var echo_var = myecho->_this();

		 try
		 {
			 naming_context->bind(name, echo_var.in ());
		 }
		 catch(CosNaming::NamingContext::AlreadyBound& ex)
		 {
			 cerr<< ex._info() << endl;
			 naming_context->rebind(name, echo_var.in ());
		 }

		 cout<<"server start success..."<<endl;
		 orb->run();

		 poa->destroy(1,1);
		 orb->destroy();
		
	}
	catch(CORBA::SystemException& e) {
		cerr << e._info() <<endl;
		cerr << "Caught CORBA::SystemException." << endl;
	}
	catch(CORBA::Exception& e) {
		cout<< e._info() << endl;
		cerr << "Caught CORBA::Exception." << endl;
	}
	catch(...) {
		cerr << "Caught unknown exception." << endl;
	}
	return 0;
	
}

工程配置，包含CORBA所需要的庫，加上指定的靜態接口庫IDL.lib，配置如圖：

4.編寫客戶端工程：

新建個工程Client，代碼如下：

#include <iostream>
#include <iomanip>
#include <sstream>

// TAO頭文件
#include "tao/AnyTypeCode/AnyTypeCode_methods.h"
#include "tao/AnyTypeCode/Any.h"
#include "tao/ORB.h"
#include "tao/SystemException.h"
#include "tao/Basic_Types.h"
#include "tao/ORB_Constants.h"
#include "tao/Object.h"
#include "tao/String_Manager_T.h"
#include "tao/Objref_VarOut_T.h"
#include "tao/VarOut_T.h"
#include "tao/Versioned_Namespace.h"

#include "tao/PortableServer/PortableServer.h"
#include "tao/PortableServer/Servant_Base.h"
#include "tao/orbsvcs/Naming_Service/Naming_Service.h"
// TAO頭文件

#include "../IDL/IUserCfgServantC.h"

IUserCfgServant_var _varEchoMgr;
CORBA::ORB_var _varORB;
sUser _userInfo;
bool _bIsLogin = false;


void printHelp();	//打印幫助菜單

using namespace std;

int main(int argc, char* argv[]) {
	try {
		// initialize orb
		_varORB = CORBA::ORB_init(argc, argv);

		// Obtain reference from servant IOR
		CORBA::Object_var naming_context_object = _varORB->resolve_initial_references( "NameService" );
		if ( CORBA::is_nil(naming_context_object.in()) )
			return false;

		CosNaming::NamingContext_var naming_context = CosNaming::NamingContext::_narrow( naming_context_object.in() );

		/*CosNaming::Name name(1);
		name.length(1);
		name[0].id = CORBA::string_dup( "IControlUnitDeviceServant" );*/

		CosNaming::Name name(1);
		name.length(1);
		name[0].id = CORBA::string_dup( "IUserCfgServant" );

		CORBA::Object_var project_object = naming_context->resolve( name );

		if ( CORBA::is_nil(project_object.in()) )
			return false;

		// Now downcast the object reference to the appropriate type
		_varEchoMgr = IUserCfgServant::_narrow( project_object.in() );

		while( true )
		{
// 			std::string temp;
// 			cout<<"input a string:";
// 			cin>>temp;
// 			temp = _varEchoMgr->echoString( temp.c_str() );
// 			cout<<"from server:"<<temp<<endl;
// 			int a,b;
// 			cout<<"input two integer:";
// 			cin>>a>>b;
// 			int result = _varEchoMgr->add(a,b);
// 			cout<<a<<"+"<<b<<"="<<result<<endl;
			string command;
			cin>>command;
			if( "help" == command )
			{
				printHelp();
			}
			else if( "register" == command )
			{
				string username;
				string password;
				cin>>username;	//用戶名
				cin>>password;	//密碼
				if( !_varEchoMgr->addUser(username.c_str(),password.c_str()))
				{
					cerr<<"username has been registered"<<endl;
				}else
				{
					cout<<"register success"<<endl;
				}
			}
			else if( "login" == command )
			{
				string username;
				string password;
				cin>>username;	//用戶名
				cin>>password;	//密碼
				sUser_var uservar;
				if( !_varEchoMgr->queryUser(username.c_str(),password.c_str(),uservar) )
				{
					cerr<<"invalid login"<<endl;
				}else
				{
					system("cls");
					cout<<"welcome "<<username<<endl;
					_userInfo = *uservar;
					_bIsLogin = true;
				}
			}
			else if( "add" == command )
			{
				if( _bIsLogin )
				{
					sItem item;
					//先讀取開始時間
					char ch;
					cin>>item.sStartTime.iYear;
					cin>>ch;	//跳過/
					cin>>item.sStartTime.iMonth;
					cin>>ch;	//跳過/
					cin>>item.sStartTime.iDay;
					cin>>item.sStartTime.iHour;
					cin>>ch;	//跳過:
					cin>>item.sStartTime.iMinute;
					cin>>ch;	//跳過:
					cin>>item.sStartTime.iSeconds;
					//再讀結束時間
					cin>>item.sEndTime.iYear;
					cin>>ch;	//跳過/
					cin>>item.sEndTime.iMonth;
					cin>>ch;	//跳過/
					cin>>item.sEndTime.iDay;
					cin>>item.sEndTime.iHour;
					cin>>ch;	//跳過:
					cin>>item.sEndTime.iMinute;
					cin>>ch;	//跳過:
					cin>>item.sEndTime.iSeconds;
					//再讀Label
					string strTmp;
					cin>>strTmp;
					item.strLabel = CORBA::string_dup( strTmp.c_str() );
					int iLength = _userInfo.seqItems.length();
					if( 0==iLength )
					{
						item.iItemId = 1;
					}else
					{
						item.iItemId = _userInfo.seqItems[iLength-1].iItemId+1;
					}
					_userInfo.seqItems.length(iLength+1);
					_userInfo.seqItems[iLength] = item;
					if( _varEchoMgr->updateUserInfo(_userInfo) )
					{
						cout<<"add success"<<endl;
					}else
					{
						cout<<"add failed"<<endl;
					}
				}else 
				{
					cerr<<"please login first"<<endl;
				}
			}
			else if( "querya" == command )
			{
				if( _bIsLogin )
				{
					//查詢所有的Item
					int iLength = _userInfo.seqItems.length();
					stringstream stream;
					for( int j = 0 ;j<iLength; j++)
					{
						//先輸出Id;
						cout<<setw(5)<<setiosflags(ios::left)<<"itemId:"<<_userInfo.seqItems[j].iItemId<<" ";
						//輸出開始時間
						stream.str("");
						stream<<
							_userInfo.seqItems[j].sStartTime.iYear<<"/"<<
							_userInfo.seqItems[j].sStartTime.iMonth<<"/"<<
							_userInfo.seqItems[j].sStartTime.iDay<<" "<<
							_userInfo.seqItems[j].sStartTime.iHour<<":"<<
							_userInfo.seqItems[j].sStartTime.iMinute<<":"<<
							_userInfo.seqItems[j].sStartTime.iSeconds;
						cout<<setw(22)<<setiosflags(ios::left)<<stream.str();
						//輸出結束時間
						stream.str("");
						stream<<
							_userInfo.seqItems[j].sStartTime.iYear<<"/"<<
							_userInfo.seqItems[j].sStartTime.iMonth<<"/"<<
							_userInfo.seqItems[j].sStartTime.iDay<<" "<<
							_userInfo.seqItems[j].sStartTime.iHour<<":"<<
							_userInfo.seqItems[j].sStartTime.iMinute<<":"<<
							_userInfo.seqItems[j].sStartTime.iSeconds;
						cout<<setw(22)<<setiosflags(ios::left)<<stream.str();
						//輸出label
						cout<<setw(20)<<setiosflags(ios::left)<<_userInfo.seqItems[j].strLabel.in()<<endl;
					}
				}else
				{
					cerr<<"please login first"<<endl;
				}
			}
			else if( "delete" == command )
			{
				//刪除指定的ITEM
				if( !_bIsLogin )
				{
					cerr<<"please login first"<<endl;
				}
				else
				{
					int itemId;
					cin>>itemId;
					int iItemCount = _userInfo.seqItems.length();
					bool bDeleted = false;
					for( int i = 0; i<iItemCount; i++ )
					{
						if( _userInfo.seqItems[i].iItemId == itemId )
						{
							//刪除改數據
							for( int j=i;(j+1)<iItemCount;j++ )
							{
								//把後面的內容往前移
								_userInfo.seqItems[j]=_userInfo.seqItems[j+1];
							}
							_userInfo.seqItems.length(iItemCount-1);//長度減少
							bDeleted = true;
							break;
						}//end of if
					}
					if( bDeleted && _varEchoMgr->updateUserInfo( _userInfo ))
					{
						//提交到服務端
						cout<<"delete success"<<endl;
					}else
					{
						cout<<"delete failed"<<endl;
					}
				}//if _bIsLogin
				
			}
			else if( "clear" == command )
			{
				if( _bIsLogin )
				{
					_userInfo.seqItems.length(0);
					if( _varEchoMgr->updateUserInfo( _userInfo ))
					{
						cerr<<"clear success"<<endl;
					}else
					{
						cerr<<"clear failed"<<endl;
					}
				}else
				{
					cerr<<"please login first"<<endl;
				}
			}
			else if( "logout" == command )
			{
				_bIsLogin = false;
				system("cls");	//清屏
			}
			else if( "exit" == command )
			{
				exit(0);
			}else
			{
				cerr<<"unkown command"<<endl;
			}
		}//while loop
	}
	catch(CORBA::SystemException&) {
		cerr << "Caught a CORBA::SystemException." << endl;
	}
	catch(CORBA::Exception& e) {
		cerr << e._info() << endl;
		cerr << "Caught CORBA::Exception." << endl;
	}
	catch(...) {
		cerr << "Caught unknown exception." << endl;
	}
	return 0;
}
void printHelp()
{
	//打印幫助菜單
	cout<<setw(15)<<setiosflags(ios::left)<<"help"<<"display help menu"<<endl;
	cout<<setw(15)<<setiosflags(ios::left)<<"register"<<"[username] [password] "<<endl;
	cout<<setw(15)<<setiosflags(ios::left)<<"login" <<"[username] [password]"<<endl;
	cout<<setw(15)<<setiosflags(ios::left)<<"add" <<"[start] [end] [title]"<<endl; 
	cout<<setw(15)<<""<<"eg:add 2012/12/13 12:12:12 2012/12/14 12:12:12 title1"<<endl;
	/*cout<<setw(15)<<"query" <<"[start] [end]"<<endl;*/
	cout<<setw(15)<<setiosflags(ios::left)<<"querya" <<"queray all items"<<endl;
	cout<<setw(15)<<setiosflags(ios::left)<<"delete" <<"[itemId]"<<endl;
	cout<<setw(15)<<setiosflags(ios::left)<<"clear" <<"clear all time"<<endl;
	cout<<setw(15)<<setiosflags(ios::left)<<"logout" <<endl;
	cout<<setw(15)<<setiosflags(ios::left)<<"exit" <<"exit the system"<<endl;
}

客戶端的配置參見服務端的配置。

注意：對於在IDL中定義out參數的結構體或對象，需要在服務端或者客戶端初始化，否則空指針會出現運行錯誤。

5. 啓動命名服務

cd %TAO_ROOT%/orbsvcs/Naming_Service/
tao_cosnaming -m 0 -ORBEndpoint iiop://127.0.0.1:10000

注意：如果tao_cosnaming不存在，請編譯Naming_Service工程，然後會生成該可執行文件，其中127.0.0.1:10000是目的主機的IP和端口號，這裏設爲本地

6. 啓動服務端

Server.exe -ORBInitRef NameService=iioploc://127.0.0.1:10000/NameService

7.啓動客戶端

Client.exe -ORBInitRef NameService=iioploc://127.0.0.1:10000/NameService

源碼下載：http://download.csdn.net/detail/javacmm2012/5575805

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