IBM的websphere MQ的c#使用(一)

接上篇的MQ配置。利用C#实现MQ消息的收发。源码

1.需要引入的dll是amqmdnet.dll

2.app.config配置

3.MQ操作类

using System;
using System.Data;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Text;
using IBM.WMQ;
using System.Xml;
using System.Configuration;
using System.Windows.Forms;

namespace WindowsFormsApplicationMQ
{
   
    class Management
    {
        string queueName;
        MQQueueManager qMgr;
        MQMessage mqMsg;
        MQQueue queue;
        MQPutMessageOptions putOptions;

        #region   连接队列管理器
   
        public Management()
        {
            
        }
        string linkStatus;
        public string LinkToQueueManager()
        {
            string QueueName = ConfigurationSettings.AppSettings["Queue"];
            queueName = QueueName;

            Environment.SetEnvironmentVariable("MQCCSID", "1381");
            if (MQEnvironment.properties.Count <= 0)
            {
                MQEnvironment.properties.Add(MQC.CCSID_PROPERTY, 1381);
            }
            MQEnvironment.Port = Convert.ToInt32(ConfigurationSettings.AppSettings["Port"]); 
            MQEnvironment.Channel = ConfigurationSettings.AppSettings["Channel"]; 
            MQEnvironment.Hostname = ConfigurationSettings.AppSettings["HostName"];
            string qmName = ConfigurationSettings.AppSettings["QueueManager"]; 
            try
            {
                if (qMgr == null || !qMgr.IsConnected)
                {
                    qMgr = new MQQueueManager(qmName);
                }

                linkStatus = "连接队列管理器:" + "成功！";
            }
            catch (MQException e)
            {

                linkStatus = "连接队列管理器错误: 结束码：" + e.CompletionCode + " 错误原因代码：" + e.ReasonCode;
            }
            catch (Exception e)
            {

                linkStatus = "连接队列管理器错误: 结束码：" + e;
            }
            return linkStatus;
        }
        #endregion

        #region   发送消息

        public void SendMsg(string message)
        {
           int openOptions=MQC.MQOO_OUTPUT | MQC.MQOO_INPUT_SHARED | MQC.MQOO_INQUIRE;
           try
           {
               queue = qMgr.AccessQueue(queueName, openOptions);   //尝试打开队列
           }
           catch(MQException e) 
           {
               MessageBox.Show("打开队列失败："+e.Message);
           }
           mqMsg = new MQMessage();
           mqMsg.WriteString(message);            
           putOptions = new MQPutMessageOptions();  
           try
           {
               queue.Put(mqMsg, putOptions);        //将消息放入消息队列
           }
           catch (MQException mqe)
           {
               MessageBox.Show("发送异常终止："+mqe .Message );
           }
           finally
           {
               try
               {
                   qMgr.Disconnect();

               }
               catch (MQException e)
               {

               }
           }
        }
            
        
        #endregion

        #region   接收消息

        public DataSet receiveMsg()
        {
            int openOptions = MQC.MQOO_OUTPUT | MQC.MQOO_INPUT_SHARED | MQC.MQOO_INQUIRE;
            try
            {
                queue = qMgr.AccessQueue(queueName, openOptions);   //尝试打开队列
            }
            catch (MQException e)
            {
                MessageBox.Show("打开队列失败：" + e.Message);
            }
            //从队列管理器中获得消息
            MQGetMessageOptions mqGetMsgOpts;
            mqMsg = new MQMessage();
            mqGetMsgOpts = new MQGetMessageOptions();
            mqGetMsgOpts.WaitInterval = 15000;          
            mqGetMsgOpts.Options |= MQC.MQGMO_WAIT;
            try
            {
                int queryDep = queue.CurrentDepth;
                if (queryDep > 0)
                {
                    queue.Get(mqMsg, mqGetMsgOpts);          //获得消息
                    var ds = new DataSet();
                    var table = new DataTable("T_School");
                    table.Columns.Add("ID", typeof(string));
                    table.Columns.Add("SchoolName", typeof(string));
                    table.Columns.Add("BuildDate", typeof(string));
                    table.Columns.Add("Address", typeof(string));
                    ds.Tables.Add(table);
                    string message = mqMsg.ReadString(mqMsg.MessageLength);
                    mqMsg.Format = MQC.MQFMT_XMIT_Q_HEADER;
                    var reader = new StringReader(message);
                    ds.ReadXml(reader, XmlReadMode.Fragment);
                    return ds;
                }
                
                else
                {
                    return null;
                }
            }
            catch(MQException ex) {
                MessageBox.Show("访问队列停止" + ex.InnerException);
                return null;
            }
            finally
            {
                try
                {
                    qMgr.Disconnect();

                }
                catch (MQException e)
                {

                }
            }
        }
        #endregion
    }
}