1、概述
首先和大家一起回顾一下Java 消息服务,在我之前的博客《Java消息队列-JMS概述》中,我为大家分析了:
1.消息服务:一个中间件,用于解决两个活多个程序之间的耦合,底层由Java 实现。
2.优势:异步、可靠
3.消息模型:点对点,发布/订阅
4.JMS中的对象
然后在另一篇博客《Java消息队列-ActiveMq实战》中,和大家一起从0到1的开启了一个ActiveMq 的项目,在项目开发的过程中,我们对ActiveMq有了一定的了解:
1.多种语言和协议编写客户端。语言: Java, C, C++, C#, Ruby, Perl, Python, PHP。应用协议: OpenWire,Stomp REST,WS Notification,XMPP,AMQP
2.完全支持JMS1.1和J2EE 1.4规范 (持久化,XA消息,事务)
3.对Spring的支持,ActiveMQ可以很容易内嵌到使用Spring的系统里面去,而且也支持Spring2.0的特性
4.通过了常见J2EE服务器(如 Geronimo,JBoss 4, GlassFish,WebLogic)的测试,其中通过JCA 1.5 resource adaptors的配置,可以让ActiveMQ可以自动的部署到任何兼容J2EE 1.4 商业服务器上
5.支持多种传送协议:in-VM,TCP,SSL,NIO,UDP,JGroups,JXTA
6.支持通过JDBC和journal提供高速的消息持久化
7.从设计上保证了高性能的集群,客户端-服务器,点对点
8.支持Ajax
9.支持与Axis的整合
10.可以很容易得调用内嵌JMS provider,进行测试
在接下来的这篇博客中,我会和大家一起来整合Spring 和ActiveMq,这篇博文,我们基于Spring+JMS+ActiveMQ+Tomcat,实现了Point-To-Point的异步队列消息和PUB/SUB(发布/订阅)模型,简单实例,不包含任何业务。
2、目录结构
2.1 项目目录
IDE选择了IDEA(建议大家使用),为了避免下载jar 的各种麻烦,底层使用maven搭建了一个项目,整合了Spring 和ActiveMq
2.2 pom.xml
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
|
< project xmlns = " http://maven.apache.org/POM/4.0.0 " xmlns:xsi = " http://www.w3.org/2001/XMLSchema-instance "
xsi:schemaLocation = " http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd " >
< modelVersion >4.0.0</ modelVersion >
< groupId >Crawl-Page</ groupId >
< artifactId >Crawl-Page</ artifactId >
< packaging >war</ packaging >
< version >1.0-SNAPSHOT</ version >
< name >Crawl-Page Maven Webapp</ name >
< url > http://maven.apache.org </ url >
<!-- 版本管理 -->
< properties >
< springframework >4.1.8.RELEASE</ springframework >
</ properties >
< dependencies >
< dependency >
< groupId >junit</ groupId >
< artifactId >junit</ artifactId >
< version >4.10</ version >
< scope >test</ scope >
</ dependency >
<!-- JSP相关 -->
< dependency >
< groupId >jstl</ groupId >
< artifactId >jstl</ artifactId >
< version >1.2</ version >
</ dependency >
< dependency >
< groupId >javax.servlet</ groupId >
< artifactId >servlet-api</ artifactId >
< scope >provided</ scope >
< version >2.5</ version >
</ dependency >
<!-- spring -->
< dependency >
< groupId >org.springframework</ groupId >
< artifactId >spring-core</ artifactId >
< version >${springframework}</ version >
</ dependency >
< dependency >
< groupId >org.springframework</ groupId >
< artifactId >spring-context</ artifactId >
< version >${springframework}</ version >
</ dependency >
< dependency >
< groupId >org.springframework</ groupId >
< artifactId >spring-tx</ artifactId >
< version >${springframework}</ version >
</ dependency >
< dependency >
< groupId >org.springframework</ groupId >
< artifactId >spring-webmvc</ artifactId >
< version >${springframework}</ version >
</ dependency >
< dependency >
< groupId >org.springframework</ groupId >
< artifactId >spring-jms</ artifactId >
< version >${springframework}</ version >
</ dependency >
<!-- xbean 如<amq:connectionFactory /> -->
< dependency >
< groupId >org.apache.xbean</ groupId >
< artifactId >xbean-spring</ artifactId >
< version >3.16</ version >
</ dependency >
<!-- activemq -->
< dependency >
< groupId >org.apache.activemq</ groupId >
< artifactId >activemq-core</ artifactId >
< version >5.7.0</ version >
</ dependency >
< dependency >
< groupId >org.apache.activemq</ groupId >
< artifactId >activemq-pool</ artifactId >
< version >5.12.1</ version >
</ dependency >
<!-- 自用jar包,可以忽略-->
< dependency >
< groupId >commons-httpclient</ groupId >
< artifactId >commons-httpclient</ artifactId >
< version >3.1</ version >
</ dependency >
</ dependencies >
< build >
< finalName >Crawl-Page</ finalName >
< plugins >
< plugin >
< groupId >org.apache.tomcat.maven</ groupId >
< artifactId >tomcat7-maven-plugin</ artifactId >
< configuration >
< port >8080</ port >
< path >/</ path >
</ configuration >
</ plugin >
</ plugins >
</ build >
</ project >
|
因为这里pom.xml 文件有点长,就不展开了。
我们可以看到其实依赖也就几个,1、Spring 核心依赖 2、ActiveMq core和pool(这里如果同学们选择导入jar,可以直接导入我们上一篇博客中说道的那个activemq-all 这个jar包)3、java servlet 相关依赖
这里面我们选择的ActiveMq pool 的依赖版本会和之后的dtd 有关系,需要版本对应,所以同学们等下配置activemq 文件的时候,需要注意dtd 版本选择
2.3 web.xml
web.xml 也大同小异,指定Spring 配置文件,springMvc 命名,编码格式
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
|
<? xml version = "1.0" encoding = "UTF-8" ?>
< web-app xmlns = " http://java.sun.com/xml/ns/javaee "
xmlns:xsi = " http://www.w3.org/2001/XMLSchema-instance "
xsi:schemaLocation=" http://java.sun.com/xml/ns/javaee
http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd "
version = "3.0" >
< display-name >Archetype Created Web Application</ display-name >
<!-- 加载spring的配置文件,例如hibernate、jms等集成 -->
< context-param >
< param-name >contextConfigLocation</ param-name >
< param-value >
classpath:applicationContext*.xml;
</ param-value >
</ context-param >
< listener >
< listener-class >org.springframework.web.context.ContextLoaderListener</ listener-class >
</ listener >
< servlet >
< servlet-name >springMVC</ servlet-name >
< servlet-class >org.springframework.web.servlet.DispatcherServlet</ servlet-class >
< init-param >
< param-name >contextConfigLocation</ param-name >
< param-value >classpath:spring-mvc.xml</ param-value >
</ init-param >
< load-on-startup >1</ load-on-startup >
</ servlet >
< servlet-mapping >
< servlet-name >springMVC</ servlet-name >
< url-pattern >/</ url-pattern >
</ servlet-mapping >
<!-- 处理编码格式 -->
< filter >
< filter-name >characterEncodingFilter</ filter-name >
< filter-class >org.springframework.web.filter.CharacterEncodingFilter</ filter-class >
< init-param >
< param-name >encoding</ param-name >
< param-value >UTF-8</ param-value >
</ init-param >
< init-param >
< param-name >forceEncoding</ param-name >
< param-value >true</ param-value >
</ init-param >
</ filter >
< filter-mapping >
< filter-name >characterEncodingFilter</ filter-name >
< url-pattern >/*</ url-pattern >
</ filter-mapping >
</ web-app >
|
2.4 SpringMvc 和applicationContext.xml
这里面的SpringMVC没什么特别,有需要的同学可以参考一下:
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
|
<? xml version = "1.0" encoding = "UTF-8" ?>
<!-- 查找最新的schemaLocation 访问 http://www.springframework.org/schema/ -->
< beans xmlns = " http://www.springframework.org/schema/beans "
xmlns:aop = " http://www.springframework.org/schema/aop "
xmlns:context = " http://www.springframework.org/schema/context "
xmlns:mvc = " http://www.springframework.org/schema/mvc "
xmlns:tx = " http://www.springframework.org/schema/tx "
xmlns:xsi = " http://www.w3.org/2001/XMLSchema-instance "
xsi:schemaLocation=" http://www.springframework.org/schema/aop
http://www.springframework.org/schema/aop/spring-aop-4.0.xsd
http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans-4.0.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context-4.0.xsd
http://www.springframework.org/schema/mvc
http://www.springframework.org/schema/mvc/spring-mvc-4.0.xsd
http://www.springframework.org/schema/tx
http://www.springframework.org/schema/tx/spring-tx-4.0.xsd ">
<!-- 启用MVC注解 -->
< mvc:annotation-driven />
<!-- 指定Sping组件扫描的基本包路径 -->
< context:component-scan base-package = "com.Jayce" >
<!-- 这里只扫描Controller,不可重复加载Service -->
< context:include-filter type = "annotation" expression = "org.springframework.stereotype.Controller" />
</ context:component-scan >
<!-- JSP视图解析器-->
< bean class = "org.springframework.web.servlet.view.InternalResourceViewResolver" >
< property name = "prefix" value = "/WEB-INF/views/" />
< property name = "suffix" value = ".jsp" />
<!-- 定义其解析视图的order顺序为1 -->
< property name = "order" value = "1" />
</ bean >
</ beans >
|
applicationContext.xml 主要使用来装载Bean,我们项目中并没有什么特别的Java Bean,因此只用来指出包扫描路径:
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
|
<? xml version = "1.0" encoding = "UTF-8" ?>
< beans xmlns = " http://www.springframework.org/schema/beans "
xmlns:xsi = " http://www.w3.org/2001/XMLSchema-instance "
xmlns:amq = " http://activemq.apache.org/schema/core "
xmlns:jms = " http://www.springframework.org/schema/jms "
xmlns:context = " http://www.springframework.org/schema/context "
xmlns:mvc = " http://www.springframework.org/schema/mvc "
xsi:schemaLocation="
http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans-4.1.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context-4.1.xsd
http://www.springframework.org/schema/mvc
http://www.springframework.org/schema/mvc/spring-mvc-4.1.xsd
http://www.springframework.org/schema/jms
http://www.springframework.org/schema/jms/spring-jms-4.1.xsd
http://activemq.apache.org/schema/core
http://activemq.apache.org/schema/core/activemq-core-5.14.3.xsd ">
< bean class = "org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor" />
<!-- 配置扫描路径 -->
< context:component-scan base-package = "com.Jayce" >
<!-- 只扫描Service,也可以添加Repostory,但是要把Controller排除在外,Controller由spring-mvc.xml去加载 -->
< context:exclude-filter type = "annotation" expression = "org.springframework.stereotype.Controller" />
</ context:component-scan >
</ beans >
|
2.5 applicationContext-ActiveMQ.xml
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
|
<? xml version = "1.0" encoding = "UTF-8" ?>
< beans xmlns = " http://www.springframework.org/schema/beans "
xmlns:xsi = " http://www.w3.org/2001/XMLSchema-instance "
xmlns:amq = " http://activemq.apache.org/schema/core "
xmlns:jms = " http://www.springframework.org/schema/jms "
xmlns:context = " http://www.springframework.org/schema/context "
xmlns:mvc = " http://www.springframework.org/schema/mvc "
xsi:schemaLocation="
http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans-4.1.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context-4.1.xsd
http://www.springframework.org/schema/mvc
http://www.springframework.org/schema/mvc/spring-mvc-4.1.xsd
http://www.springframework.org/schema/jms
http://www.springframework.org/schema/jms/spring-jms-4.1.xsd
http://activemq.apache.org/schema/core
http://activemq.apache.org/schema/core/activemq-core-5.12.1.xsd "
>
< context:component-scan base-package = "com.Jayce" />
< mvc:annotation-driven />
< amq:connectionFactory id = "amqConnectionFactory"
brokerURL = " tcp://192.168.148.128:61616 "
userName = "admin"
password = "admin" />
<!-- 配置JMS连接工长 -->
< bean id = "connectionFactory"
class = "org.springframework.jms.connection.CachingConnectionFactory" >
< constructor-arg ref = "amqConnectionFactory" />
< property name = "sessionCacheSize" value = "100" />
</ bean >
<!-- 定义消息队列(Queue) -->
<!-- 设置消息队列的名字 -->
< constructor-arg >
< value >Jaycekon</ value >
</ constructor-arg >
</ bean >
<!-- 配置JMS模板(Queue),Spring提供的JMS工具类,它发送、接收消息。 -->
< bean id = "jmsTemplate" class = "org.springframework.jms.core.JmsTemplate" >
< property name = "connectionFactory" ref = "connectionFactory" />
< property name = "defaultDestination" ref = "demoQueueDestination" />
< property name = "receiveTimeout" value = "10000" />
<!-- true是topic,false是queue,默认是false,此处显示写出false -->
< property name = "pubSubDomain" value = "false" />
</ bean >
<!-- 配置消息队列监听者(Queue) -->
< bean id = "queueMessageListener" class = "com.Jayce.Filter.QueueMessageListener" />
<!-- 显示注入消息监听容器(Queue),配置连接工厂,监听的目标是demoQueueDestination,监听器是上面定义的监听器 -->
< bean id = "queueListenerContainer"
class = "org.springframework.jms.listener.DefaultMessageListenerContainer" >
< property name = "connectionFactory" ref = "connectionFactory" />
< property name = "destination" ref = "demoQueueDestination" />
< property name = "messageListener" ref = "queueMessageListener" />
</ bean >
</ beans >
|
这里和大家讲解一下这个配置文件,如果大家能够从上述配置文件中看懂,可以跳过。同学们也可以在ActiveMQ官网中的查看。
1、ActiveMq 中的DTD,我们在声明相关配置之前,我们需要先导入ActiveMq 中的DTD,不然Spring 并不理解我们的标签是什么意思。
我们在pom.xml 文件中有配置了activemq 的版本依赖我们这里的版本,需要和依赖的版本一样,不然是找不到相关的dtd
2、amq:connectionFactory:很直白的一个配置项,用于配置我们链接工厂的地址和用户名密码,这里需要注意的是选择tcp连接而不是http连接
3、jmsTemplate:比较重要的一个配置,这里指定了连接工厂,默认消息发送目的地,还有连接时长,发布消息的方式
3、项目结构
3.1 ProducerService
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
|
package com.Jayce.Service;
import org.springframework.jms.core.JmsTemplate;
import org.springframework.jms.core.MessageCreator;
import org.springframework.stereotype.Service;
import javax.annotation.Resource;
import javax.jms.Destination;
import javax.jms.JMSException;
import javax.jms.Message;
import javax.jms.Session;
/**
* Created by Administrator on 2017/1/5.
*/
@Service
public class ProducerService {
@Resource (name= "jmsTemplate" )
private JmsTemplate jmsTemplate;
public void sendMessage(Destination destination, final String msg){
System.out.println(Thread.currentThread().getName()+ " 向队列" +destination.toString()+ "发送消息---------------------->" +msg);
jmsTemplate.send(destination, new MessageCreator() {
public Message createMessage(Session session) throws JMSException {
return session.createTextMessage(msg);
}
});
}
public void sendMessage( final String msg){
String destination = jmsTemplate.getDefaultDestinationName();
System.out.println(Thread.currentThread().getName()+ " 向队列" +destination+ "发送消息---------------------->" +msg);
jmsTemplate.send( new MessageCreator() {
public Message createMessage(Session session) throws JMSException {
return session.createTextMessage(msg);
}
});
}
}
|
将消息生产者做成一个服务,当我们需要发送消息的时候,只需要调用ProducerService实例中的sendMessage 方法就可以向默认目的发送一个消息。
这里提供了两个发送方式,一个是发送到默认的目的地,一个是根据目的地发送消息。
3.2 ConsumerService
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
|
package com.Jayce.Service;
import org.springframework.jms.core.JmsTemplate;
import org.springframework.stereotype.Service;
import javax.annotation.Resource;
import javax.jms.Destination;
import javax.jms.JMSException;
import javax.jms.TextMessage;
/**
* Created by Administrator on 2017/1/5.
*/
@Service
public class ConsumerService {
@Resource (name= "jmsTemplate" )
private JmsTemplate jmsTemplate;
public TextMessage receive(Destination destination){
TextMessage textMessage = (TextMessage) jmsTemplate.receive(destination);
try {
System.out.println( "从队列" + destination.toString() + "收到了消息:\t"
+ textMessage.getText());
} catch (JMSException e) {
e.printStackTrace();
}
return textMessage;
}
}
|
因为我们项目中并没有什么业务,所以的话对消息的处理也就是打印输出。我们只需要调用jmsTemplate中的 receive 方法,就可以从里面获取到一条消息。
再和我们上一篇博客对比一下,上一篇博客中,我们接受到信息之后需要手动确认事务,这样ActiveMQ中才会确定这条消息已经被正确读取了。而整合了Spring之后,事务将由Spring 来管理。
3.3 MessageController
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
|
package com.Jayce.Controller;
import com.Jayce.Service.ConsumerService;
import com.Jayce.Service.ProducerService;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.ResponseBody;
import javax.annotation.Resource;
import javax.jms.Destination;
import javax.jms.TextMessage;
/**
* Created by Administrator on 2017/1/5.
*/
@Controller
public class MessageController {
private Logger logger = LoggerFactory.getLogger(MessageController. class );
@Resource (name = "demoQueueDestination" )
private Destination destination;
//队列消息生产者
@Resource (name = "producerService" )
private ProducerService producer;
//队列消息消费者
@Resource (name = "consumerService" )
private ConsumerService consumer;
@RequestMapping (value = "/SendMessage" , method = RequestMethod.POST)
@ResponseBody
public void send(String msg) {
logger.info(Thread.currentThread().getName()+ "------------send to jms Start" );
producer.sendMessage(msg);
logger.info(Thread.currentThread().getName()+ "------------send to jms End" );
}
@RequestMapping (value= "/ReceiveMessage" ,method = RequestMethod.GET)
@ResponseBody
public Object receive(){
logger.info(Thread.currentThread().getName()+ "------------receive from jms Start" );
TextMessage tm = consumer.receive(destination);
logger.info(Thread.currentThread().getName()+ "------------receive from jms End" );
return tm;
}
}
|
控制层里面需要注入我们的生产者和消费者(实际开发中,生产者和消费者肯定不会在同一个项目中的,不然就消息服务这个东西就没有意义了)。
现在服务层和控制层都好了,接下来我们就进行一个简单的测试
4、项目测试
4.1 启动ActiveMq
先确定你的ActiveMQ服务已经开启。
4.2 启动项目
项目使用了Tomcat 插件,避免了本地再下载Tomcat的麻烦,有需要的同学可以使用一下。
1
|
2
3
4
5
6
7
8
9
10
|
< plugins >
< plugin >
< groupId >org.apache.tomcat.maven</ groupId >
< artifactId >tomcat7-maven-plugin</ artifactId >
< configuration >
< port >8080</ port >
< path >/</ path >
</ configuration >
</ plugin >
</ plugins >
|
4.3 发送消息
这里用了Chrome 的一个插件PostMan 有兴趣的同学可以了解一下,在Chrome 拓展程序中可以找到,避免了后端的同学去弄页面!
我们发送了一个post 请求之后,看一下服务器的效果:
我们可以看到,已经向队列发送了一条消息。我们看一下ActiveMq现在的状态:
我们可以看到,一条消息已经成功发送到了ActiveMq中。
4.4 接收消息
使用get请求访问服务器后台:
服务的输出:
ActiveMq服务器状态:
我们可以看到,消费者已经消费了一条信息,并且没有断开与ActiveMq之间的链接。
4.5 监听器
在实际项目中,我们很少会自己手动去获取消息,如果需要手动去获取消息,那就没有必要使用到ActiveMq了,可以用一个Redis 就足够了。
不能手动去获取消息,那么我们就可以选择使用一个监听器来监听是否有消息到达,这样子可以很快的完成对消息的处理。
4.5.1 applicationContext-ActiveMQ.xml 配置
在上面的配置文件中,我们已经默认的添加了这段监听器的配置文件,如果同学们不想使用这个监听器,可以直接注释掉。
1
|
2
3
4
5
6
7
8
9
10
|
<!-- 配置消息队列监听者(Queue) -->
< bean id = "queueMessageListener" class = "com.Jayce.Filter.QueueMessageListener" />
<!-- 显示注入消息监听容器(Queue),配置连接工厂,监听的目标是demoQueueDestination,监听器是上面定义的监听器 -->
< bean id = "queueListenerContainer"
class = "org.springframework.jms.listener.DefaultMessageListenerContainer" >
< property name = "connectionFactory" ref = "connectionFactory" />
< property name = "destination" ref = "demoQueueDestination" />
< property name = "messageListener" ref = "queueMessageListener" />
</ bean >
|
4.5.2 MessageListener
我们需要创建一个类实现MessageListener 接口:
1
|
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
|
package com.Jayce.Filter;
import javax.jms.JMSException;
import javax.jms.Message;
import javax.jms.MessageListener;
import javax.jms.TextMessage;
/**
* Created by Administrator on 2017/1/5.
*/
public class QueueMessageListener implements MessageListener {
public void onMessage(Message message) {
TextMessage tm = (TextMessage) message;
try {
System.out.println( "QueueMessageListener监听到了文本消息:\t"
+ tm.getText());
//do something ...
} catch (JMSException e) {
e.printStackTrace();
}
}
}
|
实现接口的onMessage 方法,我们将需要的业务操作在里面解决,这样子,就完成了我们生产者-中间件-消费者,这样一个解耦的操作了。
4.5.3 测试
和上面一样,使用postMan 发送post请求,我们可以看到控制台里面,消息马上就能打印出来:
再看看ActiveMQ服务器的状态:
我们可以看到,使用监听器的效果,和手动接收消息的效果是一样的。
这样子一整个项目下来,我们已经成功的整合了Spring和ActiveMQ。
4.6 压力测试
这里其实也算不上什么压力测试,在配置pom.xml文件的时候,大家有看到一个 commons-httpclient 的依赖,接下来我们使用httpClient 不停的想服务器发送消息,看一下服务器解决消息的速度如何:
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
|
package com.Jaycekon.test;
import org.apache.commons.httpclient.HttpClient;
import org.apache.commons.httpclient.methods.PostMethod;
import org.junit.Test;
import java.io.IOException;
import java.util.concurrent.atomic.AtomicInteger;
/**
* Created by Administrator on 2017/1/5.
*/
public class Client {
@Test
public void test() {
HttpClient httpClient = new HttpClient();
new Thread( new Sender(httpClient)).start();
}
}
class Sender implements Runnable {
public static AtomicInteger count = new AtomicInteger( 0 );
HttpClient httpClient;
public Sender(HttpClient client) {
httpClient = client;
}
public void run() {
try {
System.out.println(Thread.currentThread().getName()+ "---Send message-" +count.getAndIncrement());
PostMethod post = new PostMethod( " http://127.0.0.1:8080/SendMessage " );
post.addParameter( "msg" , "Hello world!" );
httpClient.executeMethod(post);
System.out.println(Thread.currentThread().getName()+ "---Send message Success-" +count.getAndIncrement());
} catch (IOException e) {
e.printStackTrace();
}
}
}
|
这里面用了HttpClient 来向服务器发送Post 请求,然后计数输出,有兴趣的同学可以自己测试一下,可以多开几个线程,这里只开了一个线程。
5、项目源码:Crawl-Page.rar
以上就是本文的全部内容,希望对大家的学习有所帮助,也希望大家多多支持服务器之家。
原文链接:http://www.cnblogs.com/jaycekon/p/ActiveMq.html