当 JAVA_HOME 指向 JRE 1.8 时，无法使用 activemq-admin.bat 停止 JMS 代理

Question

当 JAVA_HOME 指向 JRE (1.8.111) 时，我无法使用 activemq-admin.bat 脚本停止 JMS 代理。使用 JDK 时不会出现该问题。 在脚本中，取消注释 ACTIVEMQ_SUNJMX_START 参数，并将默认端口更改为 61099，如下所示：

"set ACTIVEMQ_SUNJMX_START=-Dcom.sun.management.jmxremote.port=61099 -Dcom.sun.management.jmxremote.authenticate=false -Dcom.sun.management.jmxremote.ssl=false"

不知何故，该端口似乎被忽略了......

我们是否需要 JDK 来停止代理？ 有什么想法吗？

JRE 1.8.111 PATH\bin>call "..\middleware\apache-activemq-5.14.0\bin\activemq-admin.bat" "stop" Java Runtime: Oracle Corporation 1.8.0_111 C:\Program Files\Java\jre1.8.0_111 Heap sizes: current=251392k free=248770k max=3706880k JVM args: -Dactivemq.classpath=PATH\middleware\apache-activemq-5.14.0\bin..\conf;_PROGRAM_DATA_\middleware\apache-activemq-5.14.0; -Dactivemq.home=PATH\middleware\apache-activemq-5.14.0\bin.. -Dactivemq.base=PATH\middleware\apache-activemq-5.14.0\bin.. -Dactivemq.data=_PROGRAM_DATA_\middleware\apache-activemq-5.14.0 -Djava.io.tmpdir=_PROGRAM_DATA_\middleware\apache-activemq-5.14.0\tmp -Dactivemq.conf=PATH\middleware\apache-activemq-5.14.0\bin..\conf Extensions classpath: [PATH\middleware\apache-activemq-5.14.0\bin..\lib,PATH\middleware\apache-activemq-5.14.0\bin..\lib\camel,PATH\middleware\apache-activemq-5.14.0\bin..\lib\optional,PATH\middleware\apache-activemq-5.14.0\bin..\lib\web,PATH\middleware\apache-activemq-5.14.0\bin..\lib\extra] ACTIVEMQ_HOME: PATH\middleware\apache-activemq-5.14.0\bin.. ACTIVEMQ_BASE: PATH\middleware\apache-activemq-5.14.0\bin.. ACTIVEMQ_CONF: PATH\middleware\apache-activemq-5.14.0\bin..\conf ACTIVEMQ_DATA: _PROGRAM_DATA_\middleware\apache-activemq-5.14.0 Connecting to JMX URL: service:jmx:rmi:///jndi/rmi://localhost:1099/jmxrmi INFO: Broker not available at: service:jmx:rmi:///jndi/rmi://localhost:1099/jmxrmi

JDK 1.8.111 PATH\bin>call "..\middleware\apache-activemq-5.14.0\bin\activemq-admin.bat" "stop" Java Runtime: Oracle Corporation 1.8.0_111 C:\Program Files\Java\jdk1.8.0_111\jre Heap sizes: current=251392k free=248770k max=3706880k JVM args: -Dactivemq.classpath=PATH\middleware\apache-activemq-5.14.0\bin..\conf;_PROGRAM_DATA_\middleware\apache-activemq-5.14.0; -Dactivemq.home=PATH\middleware\apache-activemq-5.14.0\bin.. -Dactivemq.base=PATH\middleware\apache-activemq-5.14.0\bin.. -Dactivemq.data=_PROGRAM_DATA_\middleware\apache-activemq-5.14.0 -Djava.io.tmpdir=_PROGRAM_DATA_\middleware\apache-activemq-5.14.0\tmp -Dactivemq.conf=PATH\middleware\apache-activemq-5.14.0\bin..\conf Extensions classpath: [PATH\middleware\apache-activemq-5.14.0\bin..\lib,PATH\middleware\apache-activemq-5.14.0\bin..\lib\camel,PATH\middleware\apache-activemq-5.14.0\bin..\lib\optional,PATH\middleware\apache-activemq-5.14.0\bin..\lib\web,PATH\middleware\apache-activemq-5.14.0\bin..\lib\extra] ACTIVEMQ_HOME: PATH\middleware\apache-activemq-5.14.0\bin.. ACTIVEMQ_BASE: PATH\middleware\apache-activemq-5.14.0\bin.. ACTIVEMQ_CONF: PATH\middleware\apache-activemq-5.14.0\bin..\conf ACTIVEMQ_DATA: _PROGRAM_DATA_\middleware\apache-activemq-5.14.0 useJmxServiceUrl Found JMS Url: service:jmx:rmi://127.0.0.1/stub/rO0ABXNyAC5qYXZheC5tYW5hZ2VtZW50LnJlbW90ZS5ybWkuUk1JU2VydmVySW1wbF9TdHViAAAAAAAAAAICAAB4cgAaamF2YS5ybWkuc2VydmVyLlJlbW90ZVN0dWLp/tzJi+FlGgIAAHhyABxqYXZhLnJtaS5zZXJ2Z XIuUmVtb3RlT2JqZWN002G0kQxhMx4DAAB4cHc5AAtVbmljYXN0UmVmMgAADjE5Mi4xNjguMTAwLjIwAAD9nHXsmR+4orQ3llsk9wAAAVhxZdSygAIAeA== Connecting to pid: 5020 Stopping broker: MYBROKER

Answer 1

这是因为 ActiveMQ 使用 Java Attach API 自动发现 JMX URL。为了使用这个 API，类从 $JAVA_HOME\..\lib\tools.jar 加载。由于 tools.jar 是 JDK 的一部分（请参阅 JDK files），因此对于 JRE（不是 JDK $JDK_HOME\jre 附带的 JRE）将失败。

要使用 JRE 停止代理，您必须提供 JMX URL。

set ACTIVEMQ_OPTS=-Dactivemq.jmx.url=service:jmx:rmi:///jndi/rmi://localhost:61099/jmxrmi
activemq-admin.bat stop

连接消息看起来像

Connecting to JMX URL: service:jmx:rmi:///jndi/rmi://localhost:61099/jmxrmi