ActiveMQ內存配置和密碼設置

1.配置內存　　

　　bin中activemq.bat 中的第一行 加上 :

　　REM 配置內存
　　set ACTIVEMQ_OPTS=-Xms1G -Xmx1G

2.修改控制台密碼

1.打開conf/jetty.xml，

<bean id="securityConstraint" class="org.eclipse.jetty.http.security.Constraint">
    <property name="name" value="BASIC" />
    <property name="roles" value="admin" />
    <property name="authenticate" value="false" />
</bean>

將property name為authenticate的屬性value="false" 改為"true"，高版本的已經默認為true了。

2.控制台的登錄用戶名密碼保存在conf/jetty-realm.properties文件中，內容如下:

# Defines users that can access the web (console, demo, etc.)
# username: password [,rolename ...]
admin: admin, admin

值得注意的是 用戶名和密碼的格式是：用戶名 : 密碼 ,角色名

3.修改客戶端連接密碼

1.修改activemq.xml配置,需要新增一個插件,在<broker>節點里面<systemUsage>節點前面添加如下

<plugins> 
   <simpleAuthenticationPlugin> 
         <users> 
              <authenticationUser username="${activemq.username}" password="${activemq.password}" groups="users,admins"/> 
         </users> 
   </simpleAuthenticationPlugin> 
</plugins> 

或者直接修改為（即直接將username和password賦值，所賦的值即為用戶名和密碼。如果使用這一種方式的話，下面的第二步則不需要了）：

<plugins> 
   <simpleAuthenticationPlugin> 
         <users> 
              <authenticationUser username="testUserName" password="testPassword" groups="users,admins"/> 
         </users> 
   </simpleAuthenticationPlugin> 
</plugins> 

2.用戶名密碼文件為:credentials.properties

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# Defines credentials that will be used by components (like web console) to access the broker 

activemq.username=system # 用戶名 activemq.password=manager # 密碼 guest.password=password