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Microsoft Message QueuingMicrosoft Message Queuing或MSMQ微软公司实现的一种消息队列，始于Windows NT 4与Windows 95。Windows Server 2016与Windows 10仍然包含这种组件。1999年起，Microsoft Embedded平台以及Windows CE 3.0也开始支持这一组件。[1] 简介MSMQ作为一种消息协议，允许多服务器/多进程通信，即使不总是保持互联。而sockets与其他网络协议要求直连总是成立。 MSMQ从1997年开始可用[2]。 MSMQ是可靠分发消息。分发失败的消息保存在队列中直到目标可达时重发该消息。还支持安全与优先级的消息机制。可以创建死信队列用于调试。 MSMQ支持可持续性与不可持续性消息，使得性能与消息是否写到磁盘的一致性上可以权衡。不可持续性消息只能用于向非事务性队列发送快速消息。 MSMQ支持事务处理。允许多个动作发给多个队列中包装为单个事务。微软分布式事务协调器 (MSDTC) 支持对MSMQ或其他资源的事务访问。 MSMQ使用下述端口:
版本历史
使用C#例子： using System;
using System.Collections.Generic;
using System.Linq;
using System.Messaging;
using System.Text;
using System.Threading.Tasks;
namespace Test
{
public class QueueManger
{
/// <summary>
/// 创建MSMQ队列
/// </summary>
/// <param name="queuePath">队列路径</param>
/// <param name="transactional">是否事务队列</param>
public static void Createqueue(string queuePath, bool transactional = false)
{
try
{
//判断队列是否存在
if (!MessageQueue.Exists(queuePath))
{
MessageQueue.Create(queuePath);
Console.WriteLine(queuePath + "已成功创建！");
}
else
{
Console.WriteLine(queuePath + "已经存在！");
}
}
catch (MessageQueueException e)
{
Console.WriteLine(e.Message);
}
}
/// <summary>
/// 删除队列
/// </summary>
/// <param name="queuePath"></param>
public static void Deletequeue(string queuePath)
{
try
{
//判断队列是否存在
if (MessageQueue.Exists(queuePath))
{
MessageQueue.Delete(@".\private$\myQueue");
Console.WriteLine(queuePath + "已删除！");
}
else
{
Console.WriteLine(queuePath + "不存在！");
}
}
catch (MessageQueueException e)
{
Console.WriteLine(e.Message);
}
}
/// <summary>
/// 发送消息
/// </summary>
/// <typeparam name="T">用户数据类型</typeparam>
/// <param name="target">用户数据</param>
/// <param name="queuePath">队列名称</param>
/// <param name="tran"></param>
/// <returns></returns>
public static bool SendMessage<T>(T target, string queuePath, MessageQueueTransaction tran = null)
{
try
{
//连接到本地的队列
MessageQueue myQueue = new MessageQueue(queuePath);
System.Messaging.Message myMessage = new System.Messaging.Message();
myMessage.Body = target;
myMessage.Formatter = new XmlMessageFormatter(new Type[] { typeof(T) });
//发送消息到队列中
if (tran == null)
{
myQueue.Send(myMessage);
}
else
{
myQueue.Send(myMessage, tran);
}
Console.WriteLine("消息已成功发送到"+queuePath + "队列！");
return true;
}
catch (ArgumentException e)
{
Console.WriteLine(e.Message);
return false;
}
}
/// <summary>
/// 接收消息
/// </summary>
/// <typeparam name="T">用户的数据类型</typeparam>
/// <param name="queuePath">消息路径</param>
/// <returns>用户填充在消息当中的数据</returns>
public static T ReceiveMessage<T>(string queuePath,MessageQueueTransaction tran=null)
{
//连接到本地队列
MessageQueue myQueue = new MessageQueue(queuePath);
myQueue.Formatter = new XmlMessageFormatter(new Type[] { typeof(T) });
try
{
//从队列中接收消息
System.Messaging.Message myMessage = tran == null ? myQueue.Receive() : myQueue.Receive(tran);
return (T)myMessage.Body; //获取消息的内容
}
catch (MessageQueueException e)
{
Console.WriteLine(e.Message);
}
catch (InvalidCastException e)
{
Console.WriteLine(e.Message);
}
return default(T);
}
/// <summary>
/// 采用Peek方法接收消息
/// </summary>
/// <typeparam name="T">用户数据类型</typeparam>
/// <param name="queuePath">队列路径</param>
/// <returns>用户数据</returns>
public static T ReceiveMessageByPeek<T>(string queuePath)
{
//连接到本地队列
MessageQueue myQueue = new MessageQueue(queuePath);
myQueue.Formatter = new XmlMessageFormatter(new Type[] { typeof(T) });
try
{
//从队列中接收消息
System.Messaging.Message myMessage = myQueue.Peek();
return (T)myMessage.Body; //获取消息的内容
}
catch (MessageQueueException e)
{
Console.WriteLine(e.Message);
}
catch (InvalidCastException e)
{
Console.WriteLine(e.Message);
}
return default(T);
}
/// <summary>
/// 获取队列中的所有消息
/// </summary>
/// <typeparam name="T">用户数据类型</typeparam>
/// <param name="queuePath">队列路径</param>
/// <returns>用户数据集合</returns>
public static List<T> GetAllMessage<T>(string queuePath)
{
MessageQueue myQueue = new MessageQueue(queuePath);
myQueue.Formatter = new XmlMessageFormatter(new Type[] { typeof(T) });
try
{
Message[] msgArr= myQueue.GetAllMessages();
List<T> list=new List<T>();
msgArr.ToList().ForEach((o) =>
{
list.Add((T)o.Body);
});
return list;
}
catch(Exception e)
{
Console.WriteLine(e.Message);
}
return null;
}
}
}
namespace Test
{
public class Student
{
/// <summary>
/// 年龄
/// </summary>
public int Age { get; set; }
/// <summary>
/// 姓名
/// </summary>
public string Name { get; set; }
}
}
namespace Test
{
class Program
{
static void Main(string[] args)
{
string queuepath = @".\private$\myQueue";
//QueueManger.Createqueue(queuepath);
//Student stu = new Student() { Name="shaoshun",Age=18};
//QueueManger.SendMessage<Student>(stu, queuepath);
//Student stu= QueueManger.ReceiveMessageByPeek<Student>(queuepath);
//Student stu = QueueManger.ReceiveMessage<Student>(queuepath);
//Console.WriteLine(stu.Name);
QueueManger.Deletequeue(queuepath);
QueueManger.Createqueue(queuepath);
MessageQueueTransaction tran = new MessageQueueTransaction();
tran.Begin();
try
{
Student stu;
for (int i = 0; i < 4; i++)
{
stu=new Student(){Name="shaoshun"+i,Age=i};
QueueManger.SendMessage<Student>(stu, queuepath, tran);
if (i == 3)
{
throw new Exception();
}
}
tran.Commit();
}
catch
{
tran.Abort();
}
Console.ReadKey();
}
}
}
C语言调用Windows API例子： #include "windows.h"
#include "mq.h"
#include "tchar.h"
#define BUFLEN = 256 ;
HRESULT CreateMSMQQueue(
LPWSTR wszPathName,
PSECURITY_DESCRIPTOR pSecurityDescriptor,
LPWSTR wszOutFormatName,
DWORD *pdwOutFormatNameLength
)
{
// Define the maximum number of queue properties.
const int NUMBEROFPROPERTIES = 2;
// Define a queue property structure and the structures needed to initialize it.
MQQUEUEPROPS QueueProps;
MQPROPVARIANT aQueuePropVar[NUMBEROFPROPERTIES];
QUEUEPROPID aQueuePropId[NUMBEROFPROPERTIES];
HRESULT aQueueStatus[NUMBEROFPROPERTIES];
HRESULT hr = MQ_OK;
// Validate the input parameters.
if (wszPathName == NULL || wszOutFormatName == NULL || pdwOutFormatNameLength == NULL)
{
return MQ_ERROR_INVALID_PARAMETER;
}
// Set queue properties.
DWORD cPropId = 0;
aQueuePropId[cPropId] = PROPID_Q_PATHNAME;
aQueuePropVar[cPropId].vt = VT_LPWSTR;
aQueuePropVar[cPropId].pwszVal = wszPathName;
cPropId++;
WCHAR wszLabel[MQ_MAX_Q_LABEL_LEN] = L"Test Queue";
aQueuePropId[cPropId] = PROPID_Q_LABEL;
aQueuePropVar[cPropId].vt = VT_LPWSTR;
aQueuePropVar[cPropId].pwszVal = wszLabel;
cPropId++;
// Initialize the MQQUEUEPROPS structure.
QueueProps.cProp = cPropId; // Number of properties
QueueProps.aPropID = aQueuePropId; // IDs of the queue properties
QueueProps.aPropVar = aQueuePropVar; // Values of the queue properties
QueueProps.aStatus = aQueueStatus; // Pointer to the return status
// Call MQCreateQueue to create the queue.
WCHAR wszFormatNameBuffer[BUFLEN];
DWORD dwFormatNameBufferLength = BUFLEN;
hr = MQCreateQueue(pSecurityDescriptor, // Security descriptor
&QueueProps, // Address of queue property structure
wszFormatNameBuffer, // Pointer to format name buffer
&dwFormatNameBufferLength); // Pointer to receive the queue's format name length in Unicode characters not bytes.
// Return the format name if the queue is created successfully.
if (hr == MQ_OK || hr == MQ_INFORMATION_PROPERTY)
{
if (*pdwOutFormatNameLength >= dwFormatNameBufferLength)
{
wcsncpy_s(wszOutFormatName, *pdwOutFormatNameLength - 1, wszFormatNameBuffer, _TRUNCATE);
// ************************************
// You must copy wszFormatNameBuffer into the
// wszOutFormatName buffer.
// ************************************
wszOutFormatName[*pdwOutFormatNameLength - 1] = L'\0';
*pdwOutFormatNameLength = dwFormatNameBufferLength;
}
else
{
wprintf(L"The queue was created, but its format name cannot be returned.\n");
}
}
return hr;
}
参见参考文献
外部链接Information related to Microsoft Message Queuing |
Index:
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