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mbean
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=======
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> show Mbean information
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This command can show or monitor Mbean attribute information.
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### Parameters
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|Name|Specification|
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|---:|:---|
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|*name-pattern*|pattern for the Mbean name|
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|*attribute-pattern*|pattern for the attribute name|
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|[m]|show meta information|
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|[i:]|specify the interval to refresh attribute value (ms)|
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|[n:]|execution times|
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|[E]|turn on regex matching while the default mode is wildcard matching. Only effect on the attribute name|
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### Usage
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show all Mbean names:
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```bash
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mbean
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```
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show meta data of Mbean:
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```bash
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mbean -m java.lang:type=Threading
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```
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show attributes of Mbean:
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```bash
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mbean java.lang:type=Threading
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```
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Mbean name support wildcard matcher:
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```bash
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mbean java.lang:type=Th*
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```
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> Notes：ObjectName matching rules differ from normal wildcards, Reference resources：[javax.management.ObjectName](https://docs.oracle.com/javase/8/docs/api/javax/management/ObjectName.html?is-external=true)
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Wildcards match specific attributes:
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```bash
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mbean java.lang:type=Threading *Count
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```
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Switch to regular matching using the `-E` command:
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```bash
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mbean -E java.lang:type=Threading PeakThreadCount|ThreadCount|DaemonThreadCount
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```
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Real-time monitoring using `-i` command:
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```bash
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mbean -i 1000 java.lang:type=Threading *Count
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```
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