Apache ActiveMQ是Apache出品，是最流行的，能力很强的开源消息总线。默认情况下，程序连接ActiveMQ是不需要密码的，为了安装起见，需要设置密码，提高安全性。本文分享如何设置访问ActiveMQ的账号密码。
一、设置控制台管理密码
ActiveMQ使用的是jetty服务器，找到 activemq 安装目录下的\conf\jetty.xml文件：
<bean id="adminSecurityConstraint" class="org.eclipse.jetty.util.security.Constraint">
<property name="name" value="BASIC" />
<property name="roles" value="admin" />
<!-- set authenticate=false to disable login -->
<property name="authenticate" value="true" />
</bean>
注意：authenticate的属性默认为"true"，登录控制台时需要输入账户和密码；如果是“false”，需要改为"true"。
修改控制台登录时的用户名和密码，在conf/jetty-realm.properties文件中添加用户
## ---------------------------------------------------------------------------
## Licensed to the Apache Software Foundation (ASF) under one or more
## contributor license agreements. See the NOTICE file distributed with
## this work for additional information regarding copyright ownership.
## The ASF licenses this file to You under the Apache License, Version 2.0
## (the "License"); you may not use this file except in compliance with
## the License. You may obtain a copy of the License at
##
## http://www.apache.org/licenses/LICENSE-2.0
##
## Unless required by applicable law or agreed to in writing, software
## distributed under the License is distributed on an "AS IS" BASIS,
## WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
## See the License for the specific language governing permissions and
## limitations under the License.
## ---------------------------------------------------------------------------
# Defines users that can access the web (console, demo, etc.)
# username: password [,rolename ...]
# admin: admin, admin
# user: user, user
wiener: wiener, admin
配置信息按顺序解释，分别是：用户名、密码、角色名
二、消息生产者和消费者密码认证
在\conf\activemq.xml中broker 标签最后添加生产者和消费者密码认证信息：
<!-- destroy the spring context on shutdown to stop jetty -->
<shutdownHooks>
<bean xmlns="http://www.springframework.org/schema/beans" class="org.apache.activemq.hooks.SpringContextHook" />
</shutdownHooks>
<!-- add plugins -->
<plugins>
<simpleAuthenticationPlugin>
<users>
<authenticationUser username="${activemq.username}" password="${activemq.password}" groups="users,admins"/>
</users>
</simpleAuthenticationPlugin>
</plugins>
</broker>
activemq.username和activemq.password的值在文件credentials.properties中配置，见如下步骤。
设置用户名密码，文件在\conf\credentials.properties
## ---------------------------------------------------------------------------
## Licensed to the Apache Software Foundation (ASF) under one or more
## contributor license agreements. See the NOTICE file distributed with
## this work for additional information regarding copyright ownership.
## The ASF licenses this file to You under the Apache License, Version 2.0
## (the "License"); you may not use this file except in compliance with
## the License. You may obtain a copy of the License at
##
## http://www.apache.org/licenses/LICENSE-2.0
##
## Unless required by applicable law or agreed to in writing, software
## distributed under the License is distributed on an "AS IS" BASIS,
## WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
## See the License for the specific language governing permissions and
## limitations under the License.
## ---------------------------------------------------------------------------
# Defines credentials that will be used by components (like web console) to access the broker
# activemq.username=system
# activemq.password=manager
# guest.password=password
activemq.username=wiener
activemq.password=wiener
guest.password=password
三、设置生产者和消费者端用户名密码
验证代码是在《【Spring Boot】ActiveMQ 发布/订阅消息模式介绍》的基础上做重构，除了新增类ActiveMQConfig之外，修改部分用红色字体标红。
配置application.properties连接信息
## URL of the ActiveMQ broker. Auto-generated by default. For instance `tcp://localhost:61616`
# failover:(tcp://localhost:61616,tcp://localhost:61617)
# tcp://localhost:61616
spring.activemq.broker-url=tcp://localhost:61616
spring.activemq.in-memory=true
spring.activemq.pool.enabled=false
#默认值false，表示point to point（点到点）模式，true时代表发布订阅模式，需要手动开启
spring.jms.pub-sub-domain=true
spring.activemq.user=wiener
spring.activemq.password=wiener
在Java中配置 ActiveMQ，新增ActiveMQConfig类：
import org.apache.activemq.ActiveMQConnectionFactory;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.jms.config.DefaultJmsListenerContainerFactory;
import org.springframework.jms.config.JmsListenerContainerFactory;
/**
* 配置 ActiveMQ
*
* @author east7
* @date 2020/6/23 11:27
*/
@Configuration
public class ActiveMQConfig {
@Value("${spring.activemq.user}")
private String usrName;
@Value("${spring.activemq.password}")
private String password;
@Value("${spring.activemq.broker-url}")
private String brokerUrl;
@Bean
public ActiveMQConnectionFactory connectionFactory() {
System.out.println("password =========== " + password);
return new ActiveMQConnectionFactory(usrName, password, brokerUrl);
}
/**
* 设置点对点模式，和下面的发布订阅模式二选一即可
* @param connectionFactory
* @return
*/
@Bean
public JmsListenerContainerFactory<?> jmsListenerContainerQueue(ActiveMQConnectionFactory connectionFactory){
DefaultJmsListenerContainerFactory bean = new DefaultJmsListenerContainerFactory();
bean.setConnectionFactory(connectionFactory);
return bean;
}
@Bean
public JmsListenerContainerFactory<?> jmsListenerContainerTopic(ActiveMQConnectionFactory connectionFactory){
//设置为发布订阅模式, 默认情况下使用生产消费者方式
DefaultJmsListenerContainerFactory bean = new DefaultJmsListenerContainerFactory();
bean.setPubSubDomain(true);
bean.setConnectionFactory(connectionFactory);
return bean;
}
}
修改订阅者：
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.jms.annotation.JmsListener;
import org.springframework.stereotype.Component;
import javax.jms.JMSException;
/**
* 消费者
*/
@Component
public class Subscriber1 {
private static Logger logger = LoggerFactory.getLogger(Subscriber1.class);
/**
* 订阅 topicListener1，仅仅加入containerFactory即可
*
* @param text
* @throws JMSException
*/
@JmsListener(destination = "topicListener1", containerFactory = "jmsListenerContainerTopic")
public void subscriber(String text) {
logger.info("Subscriber1 收到的报文：{}", text);
}
}
containerFactory 的值 "jmsListenerContainerTopic" 会自动匹配到ActiveMQConfig中的函数JmsListenerContainerFactory<?> jmsListenerContainerTopic(ActiveMQConnectionFactory connectionFactory)。 Subscriber2同样修改即可，代码省略。
测试函数还可以使用topicTest()。下面提供一个新的测试途径——在controller中测试。新增方法
@Autowired
private Publisher publisher;
@GetMapping("/sendTopicMsg")
public String sendTopicMsg(String msg) {
// 指定消息发送的目的地及内容
Destination destination = new ActiveMQTopic("topicListener2");
for (int i = 0; i < 8; i++) {
publisher.publish(destination, msg + i);
}
return msg + " 发送完毕";
}
执行结果省略。