<mark>此插件，主要社区贡献人（浅念）</mark>

```xml
<dependency>
    <groupId>org.noear</groupId>
    <artifactId>solon-health</artifactId>
</dependency>
```

#### 1、描述

基础扩展插件，为 Solon Web 或服务提供公共的健康检测支持。只要加上插件，什么都不做：

* <mark>就能提供健康检测地址：`/healthz` </mark>


#### 2、使用示例

如果有需要，再添加几个自定义的检测指标：

```java
@Configuration
public class Config {
    @Bean
    public void initHealthCheckPoint() {
        //test...
        HealthChecker.addIndicator("preflight", Result::succeed);
        HealthChecker.addIndicator("test", Result::failure);
        HealthChecker.addIndicator("boom", () -> {
            throw new IllegalStateException();
        });
    }
}
```

检测效果

```text
GET /healthz
Response Code:
200 : Everything is fine
503 : At least one procedure has reported a non-healthy state
500 : One procedure has thrown an error or has not reported a status in time
Response:
{"status":"ERROR","details":{"test":{"status":"DOWN"},"boom":{"status":"ERROR"},"preflight":{"status":"UP","details":{"total":987656789,"free":6783,"threshold":7989031}}}}
```

#### 3、实战示例

```java
@Component("persistent")
public class PersistentHealth implements HealthIndicator{
    @Inject
    UserMapper userMapper;
    
    @Inject
    RedisClient redisClient;

    @Override
    public Result get(){
        userMapper.getUser(1);
        redisClient.getHash("user:1");
        
        return Result.succeed();
    }
}
```

v2.2.3 之前，只支持手动注册。需要补充配置代码：

```java
@Configuration
public class Config {
    @Bean
    public void initHealthCheckPoint(@Inject PersistentHealth persistent) {
        HealthChecker.addIndicator("persistent", persistent);
    }
}
```