如何在Java代码中访问Spring执行器运行状况检查的结果?
我已经设置了一个带有端点/Actuator/Health的Health Check执行器,当您转到URL时,它会为我的应用程序生成类似以下内容:
{"status":"UP","app":{"status":"UP"},"db":{"status":"UP"}}
有没有办法可以使用SpringAPI在我的Java代码中访问这些结果?我正在监视任何发生故障的情况,并在发生故障时发送延迟通知,我对监视数据库何时发生故障特别感兴趣。我已经有了创建松弛通知的方法,我只需要发生故障的组件的名称(即db)。
有人能帮忙吗?
希望我的问题有道理,我还是个新手。
编辑:我已经@Override Health,如果整个应用程序都关闭了,它就会进入这个阶段,不确定在这个阶段是否有方法可以获得当时还关闭的内容(db等)并传递到Sack方法中?:
@Override
public Health health() {
System.out.println("HealthIndicator called at " + LocalDateTime.now() + " state=" + (state?"Up":"Down"));
if(state) {
return Health.up().build();
} else {
triggerSlackNotifications(failedComponent, status);
return Health.down().build();
}
}
解决方案
要获取有关运行状况的更多详细信息,您可以在application.properties
management.endpoint.health.enabled=true
management.endpoint.health.show-details=always
之后,您将获得更多信息,如下所示。
{
"status": "UP",
"details": {
"diskSpace": {
"status": "UP",
"details": {
"total": 467848392704,
"free": 69999702016,
"threshold": 10485760
}
},
"db": {
"status": "UP",
"details": {
"database": "MySQL",
"hello": 1
}
},
"mail": {
"status": "UP",
"details": {
"location": "smtp.gmail.com:<port>"
}
}
}
}
解决方案
@GetMapping("/statusDB")
public String healthCheck() throws IOException, JSONException
{
StringBuilder result = new StringBuilder();
URL url = new URL("http://localhost:8080/actuator/health");
HttpURLConnection conn = (HttpURLConnection) url.openConnection();
conn.getResponseCode();
BufferedReader rd = new BufferedReader(new InputStreamReader(conn.getInputStream()));
String line;
while ((line = rd.readLine()) != null) {
result.append(line);
}
rd.close();
System.out.println("Result: "+result.toString());
JSONObject jsonObject =new JSONObject(result.toString());
System.out.println("jsonObject: "+jsonObject);
return "Status of Database is "+jsonObject.getJSONObject("details").getJSONObject("db").get("status");
}
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