怎么通过java来解析springboot暴露的actuator/prometheus指标信息？

Question

今天研究了actuator，把服务的一些指标数据暴露出来，现在想获取这些数据，然后解析成map或者对象，这种格式的数据应该怎么做？

# HELP spring_integration_sources The number of message sources TYPE spring_integration_sources gauge
spring_integration_sources 0.0
# HELP tomcat_servlet_error_total  
# TYPE tomcat_servlet_error_total counter
tomcat_servlet_error_total{name="default",} 0.0
tomcat_servlet_error_total{name="dispatcherServlet",} 1.0
tomcat_servlet_error_total{name="com.supermap.gaf.mgt.config.JerseyConfig",} 0.0
# HELP tomcat_cache_hit_total  
# TYPE tomcat_cache_hit_total counter
tomcat_cache_hit_total 0.0
# HELP tomcat_threads_busy_threads  
# TYPE tomcat_threads_busy_threads gauge
tomcat_threads_busy_threads{name="http-nio-8764",} NaN
# HELP jvm_classes_unloaded_classes_total The total number of classes unloaded since the Java virtual machine has started execution
# TYPE jvm_classes_unloaded_classes_total counter
jvm_classes_unloaded_classes_total 2.0
# HELP jvm_gc_memory_promoted_bytes_total Count of positive increases in the size of the old generation memory pool before GC to after GC
# TYPE jvm_gc_memory_promoted_bytes_total counter
jvm_gc_memory_promoted_bytes_total 1.813408E7
# HELP tomcat_sessions_expired_sessions_total  
# TYPE tomcat_sessions_expired_sessions_total counter
tomcat_sessions_expired_sessions_total 0.0
# HELP process_cpu_usage The "recent cpu usage" for the Java Virtual Machine process
# TYPE process_cpu_usage gauge
process_cpu_usage 4.0642046311747867E-4
# HELP tomcat_servlet_request_seconds  
# TYPE tomcat_servlet_request_seconds summary
tomcat_servlet_request_seconds_count{name="default",} 0.0
tomcat_servlet_request_seconds_sum{name="default",} 0.0
tomcat_servlet_request_seconds_count{name="dispatcherServlet",} 4.0
tomcat_servlet_request_seconds_sum{name="dispatcherServlet",} 0.585
tomcat_servlet_request_seconds_count{name="com.supermap.gaf.mgt.config.JerseyConfig",} 0.0
tomcat_servlet_request_seconds_sum{name="com.supermap.gaf.mgt.config.JerseyConfig",} 0.0
# HELP jvm_memory_used_bytes The amount of used memory
# TYPE jvm_memory_used_bytes gauge
jvm_memory_used_bytes{area="heap",id="PS Survivor Space",} 1.2141152E7
jvm_memory_used_bytes{area="heap",id="PS Old Gen",} 3.9596208E7
jvm_memory_used_bytes{area="heap",id="PS Eden Space",} 4.07977512E8
jvm_memory_used_bytes{area="nonheap",id="Metaspace",} 7.36332E7
jvm_memory_used_bytes{area="nonheap",id="Code Cache",} 1.4513344E7
jvm_memory_used_bytes{area="nonheap",id="Compressed Class Space",} 9825512.0
# HELP tomcat_global_request_max_seconds  
# TYPE tomcat_global_request_max_seconds gauge
tomcat_global_request_max_seconds{name="http-nio-8764",} 0.341
# HELP jvm_buffer_memory_used_bytes An estimate of the memory that the Java virtual machine is using for this buffer pool
# TYPE jvm_buffer_memory_used_bytes gauge
jvm_buffer_memory_used_bytes{id="direct",} 40960.0
jvm_buffer_memory_used_bytes{id="mapped",} 0.0
# HELP jvm_threads_live_threads The current number of live threads including both daemon and non-daemon threads
# TYPE jvm_threads_live_threads gauge
jvm_threads_live_threads 43.0
# HELP tomcat_threads_config_max_threads  
# TYPE tomcat_threads_config_max_threads gauge
tomcat_threads_config_max_threads{name="http-nio-8764",} NaN
# HELP tomcat_sessions_created_sessions_total  
# TYPE tomcat_sessions_created_sessions_total counter
tomcat_sessions_created_sessions_total 1.0
# HELP tomcat_sessions_active_current_sessions  
# TYPE tomcat_sessions_active_current_sessions gauge
tomcat_sessions_active_current_sessions 1.0
# HELP jvm_memory_max_bytes The maximum amount of memory in bytes that can be used for memory management
# TYPE jvm_memory_max_bytes gauge
jvm_memory_max_bytes{area="heap",id="PS Survivor Space",} 1.2582912E7
jvm_memory_max_bytes{area="heap",id="PS Old Gen",} 2.843738112E9
jvm_memory_max_bytes{area="heap",id="PS Eden Space",} 1.388314624E9
jvm_memory_max_bytes{area="nonheap",id="Metaspace",} -1.0
jvm_memory_max_bytes{area="nonheap",id="Code Cache",} 2.5165824E8
jvm_memory_max_bytes{area="nonheap",id="Compressed Class Space",} 1.073741824E9
# HELP tomcat_global_request_seconds  
# TYPE tomcat_global_request_seconds summary
tomcat_global_request_seconds_count{name="http-nio-8764",} 3.0
tomcat_global_request_seconds_sum{name="http-nio-8764",} 0.616
# HELP jvm_gc_max_data_size_bytes Max size of old generation memory pool
# TYPE jvm_gc_max_data_size_bytes gauge
jvm_gc_max_data_size_bytes 2.843738112E9
# HELP logback_events_total Number of error level events that made it to the logs
# TYPE logback_events_total counter
logback_events_total{level="warn",} 55.0
logback_events_total{level="debug",} 0.0
logback_events_total{level="error",} 49.0
logback_events_total{level="trace",} 0.0
logback_events_total{level="info",} 101.0
# HELP process_start_time_seconds Start time of the process since unix epoch.
# TYPE process_start_time_seconds gauge
process_start_time_seconds 1.568895459282E9
# HELP tomcat_global_sent_bytes_total  
# TYPE tomcat_global_sent_bytes_total counter
tomcat_global_sent_bytes_total{name="http-nio-8764",} 22151.0
# HELP tomcat_cache_access_total  
# TYPE tomcat_cache_access_total counter
tomcat_cache_access_total 0.0
# HELP jvm_gc_live_data_size_bytes Size of old generation memory pool after a full GC
# TYPE jvm_gc_live_data_size_bytes gauge
jvm_gc_live_data_size_bytes 3.9588016E7
# HELP system_cpu_count The number of processors available to the Java virtual machine
# TYPE system_cpu_count gauge
system_cpu_count 8.0
# HELP tomcat_global_received_bytes_total  
# TYPE tomcat_global_received_bytes_total counter
tomcat_global_received_bytes_total{name="http-nio-8764",} 0.0
# HELP jvm_buffer_count_buffers An estimate of the number of buffers in the pool
# TYPE jvm_buffer_count_buffers gauge
jvm_buffer_count_buffers{id="direct",} 5.0
jvm_buffer_count_buffers{id="mapped",} 0.0
# HELP jvm_threads_peak_threads The peak live thread count since the Java virtual machine started or peak was reset
# TYPE jvm_threads_peak_threads gauge
jvm_threads_peak_threads 47.0
# HELP jvm_gc_pause_seconds Time spent in GC pause
# TYPE jvm_gc_pause_seconds summary
jvm_gc_pause_seconds_count{action="end of major GC",cause="Metadata GC Threshold",} 1.0
jvm_gc_pause_seconds_sum{action="end of major GC",cause="Metadata GC Threshold",} 0.116
jvm_gc_pause_seconds_count{action="end of minor GC",cause="Metadata GC Threshold",} 1.0
jvm_gc_pause_seconds_sum{action="end of minor GC",cause="Metadata GC Threshold",} 0.012
jvm_gc_pause_seconds_count{action="end of minor GC",cause="Allocation Failure",} 2.0
jvm_gc_pause_seconds_sum{action="end of minor GC",cause="Allocation Failure",} 0.019
# HELP jvm_gc_pause_seconds_max Time spent in GC pause
# TYPE jvm_gc_pause_seconds_max gauge
jvm_gc_pause_seconds_max{action="end of major GC",cause="Metadata GC Threshold",} 0.0
jvm_gc_pause_seconds_max{action="end of minor GC",cause="Metadata GC Threshold",} 0.0
jvm_gc_pause_seconds_max{action="end of minor GC",cause="Allocation Failure",} 0.0
# HELP tomcat_threads_current_threads  
# TYPE tomcat_threads_current_threads gauge
tomcat_threads_current_threads{name="http-nio-8764",} NaN
# HELP jvm_threads_daemon_threads The current number of live daemon threads
# TYPE jvm_threads_daemon_threads gauge
jvm_threads_daemon_threads 40.0
# HELP tomcat_global_error_total  
# TYPE tomcat_global_error_total counter
tomcat_global_error_total{name="http-nio-8764",} 1.0
# HELP jvm_buffer_total_capacity_bytes An estimate of the total capacity of the buffers in this pool
# TYPE jvm_buffer_total_capacity_bytes gauge
jvm_buffer_total_capacity_bytes{id="direct",} 40960.0
jvm_buffer_total_capacity_bytes{id="mapped",} 0.0
# HELP jvm_memory_committed_bytes The amount of memory in bytes that is committed for the Java virtual machine to use
# TYPE jvm_memory_committed_bytes gauge
jvm_memory_committed_bytes{area="heap",id="PS Survivor Space",} 1.2582912E7
jvm_memory_committed_bytes{area="heap",id="PS Old Gen",} 2.36978176E8
jvm_memory_committed_bytes{area="heap",id="PS Eden Space",} 4.85490688E8
jvm_memory_committed_bytes{area="nonheap",id="Metaspace",} 7.76192E7
jvm_memory_committed_bytes{area="nonheap",id="Code Cache",} 1.4548992E7
jvm_memory_committed_bytes{area="nonheap",id="Compressed Class Space",} 1.0534912E7
# HELP tomcat_servlet_request_max_seconds  
# TYPE tomcat_servlet_request_max_seconds gauge
tomcat_servlet_request_max_seconds{name="default",} 0.0
tomcat_servlet_request_max_seconds{name="dispatcherServlet",} 0.339
tomcat_servlet_request_max_seconds{name="com.supermap.gaf.mgt.config.JerseyConfig",} 0.0
# HELP tomcat_sessions_active_max_sessions  
# TYPE tomcat_sessions_active_max_sessions gauge
tomcat_sessions_active_max_sessions 1.0
# HELP tomcat_sessions_alive_max_seconds  
# TYPE tomcat_sessions_alive_max_seconds gauge
tomcat_sessions_alive_max_seconds 0.0
# HELP http_server_requests_seconds  
# TYPE http_server_requests_seconds summary
http_server_requests_seconds_count{exception="None",method="GET",outcome="SUCCESS",status="200",uri="/actuator/",} 1.0
http_server_requests_seconds_sum{exception="None",method="GET",outcome="SUCCESS",status="200",uri="/actuator/",} 0.0823082
http_server_requests_seconds_count{exception="None",method="GET",outcome="SUCCESS",status="200",uri="/actuator/prometheus",} 1.0
http_server_requests_seconds_sum{exception="None",method="GET",outcome="SUCCESS",status="200",uri="/actuator/prometheus",} 0.1569388
# HELP http_server_requests_seconds_max  
# TYPE http_server_requests_seconds_max gauge
http_server_requests_seconds_max{exception="None",method="GET",outcome="SUCCESS",status="200",uri="/actuator/",} 0.0
http_server_requests_seconds_max{exception="None",method="GET",outcome="SUCCESS",status="200",uri="/actuator/prometheus",} 0.0
# HELP tomcat_sessions_rejected_sessions_total  
# TYPE tomcat_sessions_rejected_sessions_total counter
tomcat_sessions_rejected_sessions_total 0.0
# HELP system_cpu_usage The "recent cpu usage" for the whole system
# TYPE system_cpu_usage gauge
system_cpu_usage 0.01668973133842988
# HELP jvm_gc_memory_allocated_bytes_total Incremented for an increase in the size of the young generation memory pool after one GC to before the next
# TYPE jvm_gc_memory_allocated_bytes_total counter
jvm_gc_memory_allocated_bytes_total 9.29496968E8
# HELP process_uptime_seconds The uptime of the Java virtual machine
# TYPE process_uptime_seconds gauge
process_uptime_seconds 347.032
# HELP spring_integration_channels The number of message channels
# TYPE spring_integration_channels gauge
spring_integration_channels 2.0
# HELP jvm_threads_states_threads The current number of threads having NEW state
# TYPE jvm_threads_states_threads gauge
jvm_threads_states_threads{state="runnable",} 9.0
jvm_threads_states_threads{state="blocked",} 0.0
jvm_threads_states_threads{state="waiting",} 18.0
jvm_threads_states_threads{state="timed-waiting",} 16.0
jvm_threads_states_threads{state="new",} 0.0
jvm_threads_states_threads{state="terminated",} 0.0
# HELP jvm_classes_loaded_classes The number of classes that are currently loaded in the Java virtual machine
# TYPE jvm_classes_loaded_classes gauge
jvm_classes_loaded_classes 14768.0
# HELP spring_integration_handlers The number of message handlers
# TYPE spring_integration_handlers gauge
spring_integration_handlers 1.0

Answer 1

用了Prometheus的格式，为啥不用Prometheus
如果不用Prometheus，那就用更容易解析的格式

Answer 2

这种格式是时序格式 你肯定用了 micrometer 门面库 看看其他实现库有没有json