接口的使用
com.alibaba.metrics.Counting

com.alibaba.metrics中Counting的使用

com.alibaba.metrics中Counting的子接口

限定符和类型	接口和说明
interface	BucketCounter 提供分桶计数功能，每个桶统计一定时间间隔内的计数。
interface	Compass A Compass Metric that wraps: a Timer to measure the qps and rt distribution a Counter to measure the success count a RatioGauge to measure the success rate a Map of Counter> to record the count for each error code a Map of Counter> to record the count for each addon
interface	Counter An incrementing and decrementing counter metric.
interface	Histogram A metric which calculates the distribution of a value.
interface	Meter A meter metric which measures mean throughput and one-, five-, and fifteen-minute exponentially-weighted moving average throughput.
interface	Metered An object which maintains mean and exponentially-weighted rate.
interface	Timer A timer metric which aggregates timing durations and provides duration statistics, plus throughput statistics via Meter.