springboot --自定义健康检查

1、添加依赖

<dependency>
			<groupId>org.springframework.boot</groupId>
			<artifactId>spring-boot-starter-actuator</artifactId>
</dependency>

2、通过实现HealthIndicator接口方式

@Component
public class MyHealthIndicator implements HealthIndicator {
    @Override
    public Health health() {
        // 检查通过（方式一新建对象）
        return new Health.Builder().withDetail("usercount", 10) //自定义监控内容
                .withDetail("userstatus", "up").up().build();
        // 检查失败（方式二静态方法）
        //return Health.down().withDetail("status", errorCode)
        //        .withDetail("message", "服务故障").build();
    }
}

3、通过继承AbstractHealthIndicator 方式

public class RedisHealthIndicator extends AbstractHealthIndicator {

	private static final String VERSION = "version";

	private static final String REDIS_VERSION = "redis_version";

	private final RedisConnectionFactory redisConnectionFactory;

	public RedisHealthIndicator(RedisConnectionFactory connectionFactory) {
		Assert.notNull(connectionFactory, "ConnectionFactory must not be null");
		this.redisConnectionFactory = connectionFactory;
	}

	@Override
	protected void doHealthCheck(Health.Builder builder) throws Exception {
		RedisConnection connection = RedisConnectionUtils
				.getConnection(this.redisConnectionFactory);
		try {
			if (connection instanceof RedisClusterConnection) {
				ClusterInfo clusterInfo = ((RedisClusterConnection) connection)
						.clusterGetClusterInfo();
				builder.up().withDetail("cluster_size", clusterInfo.getClusterSize())
						.withDetail("slots_up", clusterInfo.getSlotsOk())
						.withDetail("slots_fail", clusterInfo.getSlotsFail());
			}
			else {
				Properties info = connection.info();
				builder.up().withDetail(VERSION, info.getProperty(REDIS_VERSION));
			}
		}
		finally {
			RedisConnectionUtils.releaseConnection(connection,
					this.redisConnectionFactory);
		}
	}
}