我正在尝试通过Micrometer和Prometheus监控Spring Boot应用程序的RestTemplate指标。 当我使用使用ResttemplateBuilder构建的Resttemplate并用于调用另一个api时,它确实获得了预期的http.client.requests指标。 但是,对于使用AsyncResttemplate创建并用于调用另一个api的情况下,它没有提供任何http.client.requests指标。
这是我创建AsyncResttemplate bean的代码
@Bean
public AsyncRestTemplate asyncRestTemplate(){
return new AsyncRestTemplate();
}
当我使用异步调用另一个API时,以下是代码:
public ListenableFuture async() {
ListenableFuture<ResponseEntity<AccountResponse>> accountResponseList = asyncRestTemplate.exchange(accountUrl, HttpMethod.GET, new HttpEntity<>(new HttpHeaders()), AccountResponse.class);
accountResponseList.addCallback(new ListenableFutureCallback<ResponseEntity<AccountResponse>>() {
@Override
public void onSuccess(ResponseEntity<AccountResponse> accountResponseResponseEntity) {
System.out.println("Success");
}
@Override
public void onFailure(Throwable throwable) {
System.out.println("Failure");
}
});
return accountResponseList;
}
这些是在pom.xml中导入的相关依赖项:
<dependency>
<groupId>io.micrometer</groupId>
<artifactId>micrometer-registry-prometheus</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-actuator</artifactId>
</dependency>
这是我希望从micrometer-prometheus指标获取的内容。
# HELP http_client_requests_seconds Timer of RestTemplate operation
# TYPE http_client_requests_seconds summary
http_client_requests_seconds_count{application="${spring.application.name}",clientName="localhost",method="GET",status="200",uri="/getAllAccount",} 1.0
http_client_requests_seconds_sum{application="${spring.application.name}",clientName="localhost",method="GET",status="200",uri="/getAllAccount",} 0.0242929
# HELP http_client_requests_seconds_max Timer of RestTemplate operation
# TYPE http_client_requests_seconds_max gauge
http_client_requests_seconds_max{application="${spring.application.name}",clientName="localhost",method="GET",status="200",uri="/getAllAccount",} 0.0242929
上述指标是从ResttemplateBuilder获得的,是否有一种方式可以获取AsyncRestTemplate的指标呢?
更新:根据M. Deinum的建议,我将bean更改为...
@Bean
public RestTemplate restTemplate(RestTemplateBuilder builder){
return builder.setConnectTimeout(Duration.ofSeconds(500)).build();
}
@Bean
public AsyncRestTemplate asyncRestTemplate(RestTemplate restTemplate){
SimpleClientHttpRequestFactory requestFactory = new SimpleClientHttpRequestFactory();
SimpleAsyncTaskExecutor asyncTaskExecutor = new SimpleAsyncTaskExecutor();
asyncTaskExecutor.setConcurrencyLimit(10);
requestFactory.setTaskExecutor(asyncTaskExecutor);
return new AsyncRestTemplate(requestFactory, restTemplate);
}
但仍未从异步调用中获得任何http.client.requests。
RestTemplateBuilder
创建一个RestTemplate
,并使用它来构建一个AsyncRestTemplate
(AsyncRestTemplate
只是RestTemplate
的包装器)。 - M. Deinum