编辑“︁Gin健康检查”︁（章节）

== 高级健康检查 ==

对于更复杂的应用，你可能需要检查:
* 数据库连接状态
* 外部服务依赖
* 磁盘空间
* 内存使用情况

以下是一个包含数据库检查的高级示例:

<syntaxhighlight lang="go">
func main() {
    r := gin.Default()
    
    // 模拟数据库连接
    dbConnected := true
    
    r.GET("/health", func(c *gin.Context) {
        status := http.StatusOK
        healthStatus := "UP"
        
        if !dbConnected {
            status = http.StatusServiceUnavailable
            healthStatus = "DOWN"
        }
        
        c.JSON(status, gin.H{
            "status": healthStatus,
            "components": gin.H{
                "db": gin.H{
                    "status": dbConnected,
                    "details": "Database connection",
                },
            },
        })
    })
    
    r.Run(":8080")
}
</syntaxhighlight>

'''输出示例 (当数据库连接正常时):'''
<syntaxhighlight lang="json">
{
    "status": "UP",
    "components": {
        "db": {
            "status": true,
            "details": "Database connection"
        }
    }
}
</syntaxhighlight>

'''输出示例 (当数据库连接失败时):'''
<syntaxhighlight lang="json">
{
    "status": "DOWN",
    "components": {
        "db": {
            "status": false,
            "details": "Database connection"
        }
    }
}
</syntaxhighlight>