為什么80%的碼農(nóng)都做不了架構(gòu)師？>>> ??

在 JBoss AS 7 之前的版本中使用 SAR 時(shí)，你需要一個(gè) extends 了 org.jboss.system.ServiceMBeanSupport 并 implements org.jboss.system.ServiceMBean 的類。但在 JBoss AS 7 中，這兩者都不存在了。

在 JBoss AS 7 中實(shí)現(xiàn)一個(gè) MBean 你只需要一個(gè)實(shí)現(xiàn)了自定義接口的類。jboss-service.xml 中的配置和過(guò)去相同，但是必須制定 XML Schema，否則會(huì)有如下的異常：

<!-- lang: shell --> 23:10:52,007 ERROR [org.jboss.msc.service.fail] (MSC service thread 1-3) MSC00001: Failed to start service jboss.deployment.unit."ServerMonitorService.sar".PARSE: org.jboss.msc.service.StartException in service jboss.deployment.unit."ServerMonitorService.sar".PARSE: Failed to process phase PARSE of deployment "ServerMonitorService.sar" at org.jboss.as.server.deployment.DeploymentUnitPhaseService.start(DeploymentUnitPhaseService.java:121) at org.jboss.msc.service.ServiceControllerImpl$StartTask.run(ServiceControllerImpl.java:1765) at org.jboss.msc.service.ServiceControllerImpl$ClearTCCLTask.run(ServiceControllerImpl.java:2291) at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886) [:1.6.0_21] at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908) [:1.6.0_21] at java.lang.Thread.run(Thread.java:619) [:1.6.0_21]

Caused by: org.jboss.as.server.deployment.DeploymentUnitProcessingException: Failed to parse service xml ["/home/userone/jboss-as-7.0.1.Final/standalone/deployments/ServerMonitorService.sar/META-INF/jboss-service.xml"] at org.jboss.as.service.ServiceDeploymentParsingProcessor.deploy(ServiceDeploymentParsingProcessor.java:94) at org.jboss.as.server.deployment.DeploymentUnitPhaseService.start(DeploymentUnitPhaseService.java:115) ... 5 more Caused by: javax.xml.stream.XMLStreamException: ParseError at [row,col]:[3,1] Message: Unexpected element 'server' at org.jboss.staxmapper.XMLMapperImpl.processNested(XMLMapperImpl.java:98) at org.jboss.staxmapper.XMLMapperImpl.parseDocument(XMLMapperImpl.java:59) at org.jboss.as.service.ServiceDeploymentParsingProcessor.deploy(ServiceDeploymentParsingProcessor.java:87)

JBoss AS 7 中 jboss-service.xml 配置示例：

<!-- lang: xml --> <?xml version="1.0" encoding="UTF-8"?> <server xmlns="urn:jboss:service:7.0"xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"xsi:schemaLocation="urn:jboss:service:7.0 jboss-service_7_0.xsd"><mbean code="custom.mbean.MyServerMonitor" name="service.server.monitor:service=MyMonitor"><attribute name="Frequency">5000</attribute></mbean> </server>

轉(zhuǎn)載于:https://my.oschina.net/lifany/blog/155569

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