# Java
<a name="component-configuration-examples-java"></a>

以下示例演示适用于 Java 的 JSON 格式组件配置。

```
{
  "alarmMetrics": [ {
    "alarmMetricName": "java_lang_threading_threadcount",
    "monitor": true
  },
  {
    "alarmMetricName": "java_lang_memory_heapmemoryusage_used",
    "monitor": true
  },
  {
    "alarmMetricName": "java_lang_memory_heapmemoryusage_committed",
    "monitor": true
  }],
  "logs": [ ],
  "JMXPrometheusExporter": {
      "hostPort": "8686",
      "prometheusPort": "9404"
  }
}
```

**注意**  
Application Insights 不支持为 Prometheus JMX Exporter 配置身份验证。有关如何设置身份验证的信息，请参阅 [Prometheus JMX Exporter 示例配置](https://github.com/prometheus/jmx_exporter#configuration)。