网上关于消息队列技术原理说明的详细文档很多,但涉及到Delphi的具体实现很少,这是我从网上找了一上午的资料,自己整合和尝试的能运行的程序。
打开控制面板->程序->添加组件,添加消息队列
打开控制面板->计算机管理->服务与应用程序->消息队列,添加私有有消息Test.
在Delphi中添加MSMQ控件, TMSMQMessage; TMSMQQueueInfo; TMSMQQueue; TMSMQEvent; 这些控件在Project->Import type Library里存在。
unit Unit1; interface uses Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms, Dialogs,MSMQ_TLB,ComObj,StdCtrls,OleServer; type TForm1 = class(TForm) MSMQMessage1: TMSMQMessage; MSMQQueueInfo1: TMSMQQueueInfo; MSMQQueue1: TMSMQQueue; MSMQEvent1: TMSMQEvent; Button1: TButton; edit1:TEdit; edit2: TEdit; Button2: TButton; lbl1: TLabel; lbl2: TLabel; procedure Button1Click(Sender: TObject); procedure Button2Click(Sender: TObject); procedure MSMQEvent1Arrived(Sender: TObject; var Queue: OleVariant; Cursor: Integer); private { Private declarations } public { Public declarations } end; var Form1: TForm1; implementation {$R *.dfm} //发送消息 procedure TForm1.Button1Click(Sender: TObject); begin //确定消息队列路径 MSMQQueueInfo1.PathName :='./Private$/Test'; //远程机器名 MSMQQueueInfo1.RemoteMachineName := '127.0.0.1' ; //消息内容 (MSMQMessage1.DefaultInterface as IMSMQMessage).body :=edit1.Text; //连接到消息队列 MSMQQueue1.ConnectTo(MSMQQueueInfo1.Open(MQ_SEND_ACCESS, 0)); //发送消息 MSMQMessage1.Send(MSMQQueueInfo1.Open(MQ_SEND_ACCESS, MQ_DENY_NONE)); showmessage( '已经把信息入写入消息队列中 '); end; //接收消息 procedure TForm1.Button2Click(Sender: TObject); begin msmqqueueinfo1.PathName :='./Private$/Test'; msmqqueue1.Disconnect; msmqqueue1.ConnectTo(msmqqueueinfo1.Open(1, 0)); //msmqqueue1.EnableNotification(MSMQEvent1.DefaultInterface); end; //MSMQEvent事件 procedure TForm1.MSMQEvent1Arrived(Sender: TObject; var Queue: OleVariant; Cursor: Integer); var Msg: Variant; begin //从队列中读取消息 Msg := msmqqueue1.Receive; edit2.Text := Msg.body; end; end.