提交spring-boot-actuator用例

spring-boot/spring-boot-actuator/src/main/java/com/heibaiying/actuator/SpringBootActuatorApplication.java

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+package com.heibaiying.actuator;
+
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+
+@SpringBootApplication
+public class SpringBootActuatorApplication {
+
+    public static void main(String[] args) {
+        SpringApplication.run(SpringBootActuatorApplication.class, args);
+    }
+
+}
+

spring-boot/spring-boot-actuator/src/main/java/com/heibaiying/actuator/aggregator/CustomHealthAggregator.java

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+package com.heibaiying.actuator.aggregator;
+
+import org.springframework.boot.actuate.health.Health;
+import org.springframework.boot.actuate.health.HealthAggregator;
+import org.springframework.stereotype.Component;
+
+import java.util.Map;
+
+/**
+ * @author : heibaiying
+ * @description : 对所有的自定义健康指标进行聚合，按照自定义规则返回总和健康状态
+ */
+@Component
+public class CustomHealthAggregator implements HealthAggregator {
+
+    @Override
+    public Health aggregate(Map<String, Health> healths) {
+        for (Health health : healths.values()) {
+            // 聚合规则可以自定义,这里假设我们自定义的监控状态中有一项FATAL,就认为整个服务都是不可用的,否则认为整个服务是可用的
+            if (health.getStatus().getCode().equals("FATAL")) {
+                return Health.status("FATAL").withDetail("error code", "综合判断后服务宕机").build();
+            }
+        }
+        return Health.up().build();
+    }
+}

spring-boot/spring-boot-actuator/src/main/java/com/heibaiying/actuator/endpoint/CustomEndPoint.java

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+package com.heibaiying.actuator.endpoint;
+
+import org.hyperic.sigar.CpuInfo;
+import org.hyperic.sigar.CpuPerc;
+import org.hyperic.sigar.Sigar;
+import org.hyperic.sigar.SigarException;
+import org.springframework.boot.actuate.endpoint.annotation.Endpoint;
+import org.springframework.boot.actuate.endpoint.annotation.ReadOperation;
+import org.springframework.stereotype.Component;
+
+import java.util.LinkedHashMap;
+import java.util.Map;
+
+/**
+ * @author : heibaiying
+ * @description : 自定义端点
+ */
+@Endpoint(id = "customEndPoint")
+@Component
+public class CustomEndPoint {
+
+    @ReadOperation
+    public Map<String, Object> getCupInfo() throws SigarException {
+
+        Map<String, Object> cupInfoMap = new LinkedHashMap<>();
+
+        Sigar sigar = new Sigar();
+
+        CpuInfo infoList[] = sigar.getCpuInfoList();
+        CpuPerc[] cpuList = sigar.getCpuPercList();
+
+        for (int i = 0; i < infoList.length; i++) {
+            CpuInfo info = infoList[i];
+            cupInfoMap.put("CPU " + i + " 的总量MHz", info.getMhz());                            // CPU的总量MHz
+            cupInfoMap.put("CPU " + i + " 生产商", info.getVendor());                            // 获得CPU的生产商，如：Intel
+            cupInfoMap.put("CPU " + i + " 类别", info.getModel());                               // 获得CPU的类别，如：Core
+            cupInfoMap.put("CPU " + i + " 缓存数量", info.getCacheSize());                       // 缓冲存储器数量
+            cupInfoMap.put("CPU " + i + " 用户使用率", CpuPerc.format(cpuList[i].getUser()));    // 用户使用率
+            cupInfoMap.put("CPU " + i + " 系统使用率", CpuPerc.format(cpuList[i].getSys()));     // 系统使用率
+            cupInfoMap.put("CPU " + i + " 当前等待率", CpuPerc.format(cpuList[i].getWait()));    // 当前等待率
+            cupInfoMap.put("CPU " + i + " 当前错误率", CpuPerc.format(cpuList[i].getNice()));    // 当前错误率
+            cupInfoMap.put("CPU " + i + " 当前空闲率", CpuPerc.format(cpuList[i].getIdle()));    // 当前空闲率
+            cupInfoMap.put("CPU " + i + " 总的使用率", CpuPerc.format(cpuList[i].getCombined()));// 总的使用率
+        }
+        return cupInfoMap;
+    }
+
+}

spring-boot/spring-boot-actuator/src/main/java/com/heibaiying/actuator/indicator/CustomHealthIndicator.java

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+package com.heibaiying.actuator.indicator;
+
+import org.springframework.boot.actuate.health.Health;
+import org.springframework.boot.actuate.health.HealthAggregator;
+import org.springframework.boot.actuate.health.HealthIndicator;
+import org.springframework.stereotype.Component;
+
+import java.util.Map;
+
+/**
+ * @author : heibaiying
+ * @description : 自定义健康检查指标
+ */
+@Component
+public class CustomHealthIndicator implements HealthIndicator {
+
+    @Override
+    public Health health() {
+        double random = Math.random();
+        // 这里用随机数模拟健康检查的结果
+        if (random > 0.5) {
+            return Health.status("FATAL").withDetail("error code", "某健康专项检查失败").build();
+        } else {
+            return Health.up().withDetail("success code", "自定义检查一切正常").build();
+        }
+
+    }
+}

spring-boot/spring-boot-actuator/src/main/resources/application.yml

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+management:
+  endpoints:
+    web:
+      exposure:
+        # 这里用* 代表暴露所有端点只是为了观察效果，实际中按照需进行端点暴露
+        include: "*"
+  endpoint:
+    health:
+      # 详细信息显示给所有用户。
+      show-details: always
+  health:
+    status:
+      http-mapping:
+        # 自定义健康检查返回状态码对应的http状态码
+        FATAL:  503

spring-boot/spring-boot-actuator/src/test/java/com/heibaiying/actuator/SpringBootActuatorApplicationTests.java

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+package com.heibaiying.actuator;
+
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.springframework.boot.test.context.SpringBootTest;
+import org.springframework.test.context.junit4.SpringRunner;
+
+@RunWith(SpringRunner.class)
+@SpringBootTest
+public class SpringBootActuatorApplicationTests {
+
+    @Test
+    public void contextLoads() {
+    }
+
+}
+