• ActiveMq C#客户端 消息队列的使用(存和取)


    1、准备工具

    VS2013Apache.NMS.ActiveMQ-1.7.2-bin.zip
    apache-activemq-5.14.0-bin.zip
     

    2、开始项目

    VS2013新建一个C#控制台应用程序,项目中添加两个dll引用,一个是D:Apache.NMS.ActiveMQ-1.7.2-binlibApache.NMS et-4.0目录下的Apache.NMS.dll,另一个是D:Apache.NMS.ActiveMQ-1.7.2-binuild et-4.0debug目录下的Apache.NMS.ActiveMQ.dll。
    新建一个类,MyActiveMq.cs,用于对activemq消息队列接口的封装,实现如下:
    1
    2
    3
    4
    5
    6
    7
    8
    9
    10
    11
    12
    13
    14
    15
    16
    17
    18
    19
    20
    21
    22
    23
    24
    25
    26
    27
    28
    29
    30
    31
    32
    33
    34
    35
    36
    37
    38
    39
    40
    41
    42
    43
    44
    45
    46
    47
    48
    49
    50
    51
    52
    53
    54
    55
    56
    57
    58
    59
    60
    61
    62
    63
    64
    65
    66
    67
    68
    69
    70
    71
    72
    73
    74
    75
    76
    77
    78
    79
    80
    81
    82
    83
    84
    85
    86
    87
    88
    89
    90
    91
    92
    93
    94
    95
    96
    97
    98
    99
    100
    101
    102
    103
    104
    105
    106
    107
    108
    109
    110
    111
    112
    113
    114
    115
    116
    117
    118
    119
    120
    121
    122
    123
    124
    125
    126
    127
    128
    129
    130
    131
    132
    133
    134
    135
    136
    137
    138
    139
    140
    141
    142
    143
    144
    145
    146
    147
    148
    149
    150
    151
    152
    153
    154
    155
    156
    157
    158
    159
    160
    161
    162
    163
    164
    165
    166
    167
    168
    169
    170
    171
    172
    173
    174
    175
    176
    177
    178
    179
    180
    181
    182
    183
    184
    185
    186
    187
    188
    189
    190
    191
    192
    193
    194
    195
    196
    197
    198
    199
    200
    201
    202
    203
    204
    205
    206
    207
    208
    209
    210
    211
    212
    213
    214
    215
    216
    217
    218
    219
    220
    221
    222
    223
    224
    225
    226
    227
    228
    229
    230
    231
    232
    233
    234
    235
    236
    237
    238
    239
    240
    241
    242
    243
    244
    245
    246
    247
    248
    249
    using System;
    using System.Collections.Generic;
    using System.Linq;
    using System.Text;
    using System.Threading.Tasks;
     
    using Apache.NMS;
    using Apache.NMS.ActiveMQ;
     
    namespace NmsProducerClasses
    {
        public class MyActiveMq
        {
            private IConnectionFactory factory;
            private IConnection connection;
            private ISession session;
            private IMessageProducer prod;
            private IMessageConsumer consumer;
            private ITextMessage msg;
     
            private bool isTopic = false;
            private bool hasSelector = false;
            private const string ClientID = "clientid";
            private const string Selector = "filter='demo'";
            private bool sendSuccess = true;
            private bool receiveSuccess = true;
     
            public MyActiveMq(bool isLocalMachine, string remoteAddress)
            {
                try
                {
                    //初始化工厂  
                    if (isLocalMachine)
                    {
                        factory = new ConnectionFactory("tcp://localhost:61616/");
                    }
                    else
                    {
                        factory = new ConnectionFactory("tcp://" + remoteAddress + ":61616/"); //写tcp://192.168.1.111:61616的形式连接其他服务器上的ActiveMQ服务器          
                    }
                    //通过工厂建立连接
                    connection = factory.CreateConnection();
                    connection.ClientId = ClientID;
                    connection.Start();
                    //通过连接创建Session会话
                    session = connection.CreateSession();
                }
                catch (System.Exception e)
                {
                    sendSuccess = false;
                    receiveSuccess = false;
                    Console.WriteLine("Exception:{0}", e.Message);
                    Console.ReadLine();
                    throw e;
                }
                Console.WriteLine("Begin connection...");
            }
     
     
            ~MyActiveMq()
            {
                //this.ShutDown();
            }
     
            /// <summary>
            /// 初始化
            /// </summary>
            ///<param name="topic">选择是否是Topic
            ///<param name="name">队列名
            ///<param name="selector">是否设置过滤
            public bool InitQueueOrTopic(bool topic, string name, bool selector = false)
            {
                try
                {
                    //通过会话创建生产者、消费者
                    if (topic)
                    {
                        prod = session.CreateProducer(new Apache.NMS.ActiveMQ.Commands.ActiveMQTopic(name));
                        if (selector)
                        {
                            consumer = session.CreateDurableConsumer(new Apache.NMS.ActiveMQ.Commands.ActiveMQTopic(name), ClientID, Selector, false);
                            hasSelector = true;
                        }
                        else
                        {
                            consumer = session.CreateDurableConsumer(new Apache.NMS.ActiveMQ.Commands.ActiveMQTopic(name), ClientID, null, false);
                            hasSelector = false;
                        }
                        isTopic = true;
                    }
                    else
                    {
                        prod = session.CreateProducer(new Apache.NMS.ActiveMQ.Commands.ActiveMQQueue(name));
                        if (selector)
                        {
                            consumer = session.CreateConsumer(new Apache.NMS.ActiveMQ.Commands.ActiveMQQueue(name), Selector);
                            hasSelector = true;
                        }
                        else
                        {
                            consumer = session.CreateConsumer(new Apache.NMS.ActiveMQ.Commands.ActiveMQQueue(name));
                            hasSelector = false;
                        }
                        isTopic = false;
                    }
                    //创建一个发送的消息对象
                    msg = prod.CreateTextMessage();
                }
                catch (System.Exception e)
                {
                    sendSuccess = false;
                    receiveSuccess = false;
                    Console.WriteLine("Exception:{0}", e.Message);
                    Console.ReadLine();
                    throw e;
                }
     
                return sendSuccess;
            }
     
     
            public bool SendMessage(string message, string msgId = "defult", MsgPriority priority = MsgPriority.Normal)
            {
                if (prod == null)
                {
                    sendSuccess = false;
                    Console.WriteLine("call InitQueueOrTopic() first!!");
                    return false;
                }
     
                Console.WriteLine("Begin send messages...");
     
                //给这个对象赋实际的消息
                msg.NMSCorrelationID = msgId;
                msg.Properties["MyID"] = msgId;
                msg.NMSMessageId = msgId;
                msg.Text = message;
                Console.WriteLine(message);
     
                if (isTopic)
                {
                    sendSuccess = ProducerSubcriber(message, priority);
                }
                else
                {
                    sendSuccess = P2P(message, priority);
                }
     
                return sendSuccess;
            }
     
     
            public string GetMessage()
            {
                if (prod == null)
                {
                    Console.WriteLine("call InitQueueOrTopic() first!!");
                    return null;
                }
     
                Console.WriteLine("Begin receive messages...");
                ITextMessage revMessage = null;
                try
                {
                    //同步阻塞10ms,没消息就直接返回null,注意此处时间不能设太短,否则还没取到消息就直接返回null了!!!
                    revMessage = consumer.Receive(new TimeSpan(TimeSpan.TicksPerMillisecond *10)) as ITextMessage;
                }
                catch (System.Exception e)
                {
                    receiveSuccess = false;
                    Console.WriteLine("Exception:{0}", e.Message);
                    Console.ReadLine();
                    throw e;
                }
     
                if (revMessage == null)
                {
                    Console.WriteLine("No message received!");
                    return null;
                }
                else
                {
                    Console.WriteLine("Received message with Correlation ID: " + revMessage.NMSCorrelationID);
                    //Console.WriteLine("Received message with Properties'ID: " + revMessage.Properties["MyID"]);
                    Console.WriteLine("Received message with text: " + revMessage.Text);
                }
     
                return revMessage.Text;
            }
     
            //P2P模式,一个生产者对应一个消费者
            private bool P2P(string message, MsgPriority priority)
            {
                try
                {
                    if (hasSelector)
                    {
                        //设置消息对象的属性,这个很重要,是Queue的过滤条件,也是P2P消息的唯一指定属性
                        msg.Properties.SetString("filter", "demo");  //P2P模式
                    }
                    prod.Priority = priority;
                    //设置持久化
                    prod.DeliveryMode = MsgDeliveryMode.Persistent;
                    //生产者把消息发送出去,几个枚举参数MsgDeliveryMode是否持久化,MsgPriority消息优先级别,存活时间,当然还有其他重载
                    prod.Send(msg, MsgDeliveryMode.Persistent, priority, TimeSpan.MinValue);
                }
                catch (System.Exception e)
                {
                    sendSuccess = false;
                    Console.WriteLine("Exception:{0}", e.Message);
                    Console.ReadLine();
                    throw e;
                }
     
                return sendSuccess;
            }
     
     
            //发布订阅模式,一个生产者多个消费者
            private bool ProducerSubcriber(string message, MsgPriority priority)
            {
                try
                {
                    prod.Priority = priority;
                    //设置持久化,如果DeliveryMode没有设置或者设置为NON_PERSISTENT,那么重启MQ之后消息就会丢失
                    prod.DeliveryMode = MsgDeliveryMode.Persistent;
                    prod.Send(msg, Apache.NMS.MsgDeliveryMode.Persistent, priority, TimeSpan.MinValue);
                    //System.Threading.Thread.Sleep(1000); 
                }
                catch (System.Exception e)
                {
                    sendSuccess = false;
                    Console.WriteLine("Exception:{0}", e.Message);
                    Console.ReadLine();
                    throw e;
                }
     
                return sendSuccess;
            }
     
     
            public void ShutDown()
            {
                Console.WriteLine("Close connection and session...");
                session.Close();
                connection.Close();
            }
        }
    }

     
    Program.cs代码如下:
     
    1
    2
    3
    4
    5
    6
    7
    8
    9
    10
    11
    12
    13
    14
    15
    16
    17
    18
    19
    20
    21
    22
    23
    24
    25
    26
    27
    28
    29
    30
    31
    32
    33
    34
    35
    36
    37
    38
    39
    40
    41
    42
    43
    44
    45
    46
    47
    48
    49
    50
    51
    52
    53
    54
    55
    56
    57
    58
    59
    60
    61
    62
    63
    64
    using System;
    using System.Collections.Generic;
    using System.Linq;
    using System.Text;
    using System.Threading.Tasks;
    using System.IO;
    using System.Threading;
     
    namespace NmsProducerClasses
    {
        class Program
        {
            static void Main(string[] args)
            {
                MyActiveMq mymq = new MyActiveMq(isLocalMachine: true, remoteAddress: "");
     
                mymq.InitQueueOrTopic(topic: false, name: "myqueue", selector: false);
                //mymq.InitQueueOrTopic(topic: false, name: "seletorqueue", selector: true);
                //mymq.InitQueueOrTopic(topic: true, name: "noselectortopic", selector: false);
                //mymq.InitQueueOrTopic(topic: true, name: "selectortopic", selector: true);
     
                //The full range of priority values (0-9) are supported by the JDBC message store. For KahaDB three priority categories are supported, Low (< 4), Default (= 4) and High (> 4).
                User myuser0 = new User("0000", "Lowest", "img/p.jpg");
                mymq.SendMessage(JsonUtil.ObjectToJson(myuser0), "newid", priority: Apache.NMS.MsgPriority.Lowest);
                User myuser1 = new User("1111", "AboveLow", "img/p.jpg");
                mymq.SendMessage(JsonUtil.ObjectToJson(myuser1), "newid", priority: Apache.NMS.MsgPriority.AboveLow);
                User myuser2 = new User("2222", "AboveNormal", "img/p.jpg");
                mymq.SendMessage(JsonUtil.ObjectToJson(myuser2), "newid", priority: Apache.NMS.MsgPriority.AboveNormal);
                User myuser3 = new User("0000", "BelowNormal", "img/p.jpg");
                mymq.SendMessage(JsonUtil.ObjectToJson(myuser3), "newid", priority: Apache.NMS.MsgPriority.BelowNormal);
                User myuser4 = new User("1111", "High", "img/p.jpg");
                mymq.SendMessage(JsonUtil.ObjectToJson(myuser4), "newid", priority: Apache.NMS.MsgPriority.High);
                User myuser5 = new User("2222", "Highest", "img/p.jpg");
                mymq.SendMessage(JsonUtil.ObjectToJson(myuser5), "newid", priority: Apache.NMS.MsgPriority.Highest);
                User myuser6 = new User("0000", "Low", "img/p.jpg");
                mymq.SendMessage(JsonUtil.ObjectToJson(myuser6), "newid", priority: Apache.NMS.MsgPriority.Low);
                User myuser7 = new User("1111", "Normal", "img/p.jpg");
                mymq.SendMessage(JsonUtil.ObjectToJson(myuser7), "newid", priority: Apache.NMS.MsgPriority.Normal);
                User myuser8 = new User("2222", "VeryHigh", "img/p.jpg");
                mymq.SendMessage(JsonUtil.ObjectToJson(myuser8), "newid", priority: Apache.NMS.MsgPriority.VeryHigh);
                User myuser9 = new User("2222", "VeryLow", "img/p.jpg");
                mymq.SendMessage(JsonUtil.ObjectToJson(myuser8), "newid", priority: Apache.NMS.MsgPriority.VeryLow);
     
                int num = 20;
                while (num-- > 0)
                {
                    mymq.GetMessage();
                    //Thread.Sleep(1000);
                }
                mymq.ShutDown();
                 
     
                //XML测试
                //string xml = XmlTest.ObjToXml();
                //Console.WriteLine("ObjToXml: {0}", xml);
     
                //Json测试
                //User u = new User() { Id="88", Imgurl="img/88.jpg", Name="haha88"};
                //string jsonstr = JsonUtil.ObjectToJson(u);
                //Console.WriteLine(jsonstr);
                 
            }
     
        }

    3、测试

    首先,需要启动消息队列,具体启动及测试消息队列步骤可见这边:点击打开链接
    然后,运行项目,运行结果如下:
     
     
     
     

    4、存在问题

    priority并不能决定消息传送的严格消息,具体原因可见
  • 相关阅读:
    MVC中单选按钮的实现
    前端点击手机号码跳转到手机拨号页面
    jQuery限制文本框只能输入正整数
    Asp.Net 之 二维码生成
    MVC +Jqyery+Ajax 实现弹出层提醒
    jQuery Ajax使用实例
    ASP的调试技术解答
    模式应用场景
    redis笔记
    yii resful
  • 原文地址:https://www.cnblogs.com/amylis_chen/p/6293117.html
Copyright © 2020-2023  润新知