[优化] 增加日志等级配置，更新服务器启动日志信息

atsf_server/common/init.go

@@ -54,6 +54,7 @@ func init() {
 	if os.Getenv("AGENT_TOKEN") != "" {
 		AgentToken = os.Getenv("AGENT_TOKEN")
 	}
+	SetLogLevel(os.Getenv("LOG_LEVEL"))
 	if *LogDir != "" {
 		var err error
 		*LogDir, err = filepath.Abs(*LogDir)

atsf_server/common/logger.go

@@ -7,9 +7,48 @@ import (
 	"log"
 	"os"
 	"path/filepath"
+	"strings"
 	"time"
 )
 
+type logLevel int
+
+const (
+	logLevelDebug logLevel = iota
+	logLevelInfo
+	logLevelWarn
+	logLevelError
+)
+
+var currentLogLevel = logLevelInfo
+var currentLogLevelName = "info"
+
+func SetLogLevel(level string) {
+	normalized := strings.TrimSpace(strings.ToLower(level))
+	switch normalized {
+	case "debug":
+		currentLogLevel = logLevelDebug
+		currentLogLevelName = "debug"
+	case "warn", "warning":
+		currentLogLevel = logLevelWarn
+		currentLogLevelName = "warn"
+	case "error":
+		currentLogLevel = logLevelError
+		currentLogLevelName = "error"
+	default:
+		currentLogLevel = logLevelInfo
+		currentLogLevelName = "info"
+	}
+}
+
+func GetLogLevel() string {
+	return currentLogLevelName
+}
+
+func shouldLog(level logLevel) bool {
+	return level >= currentLogLevel
+}
+
 func SetupGinLog() {
 	if *LogDir != "" {
 		commonLogPath := filepath.Join(*LogDir, "common.log")
@@ -28,11 +67,17 @@ func SetupGinLog() {
 }
 
 func SysLog(s string) {
+	if !shouldLog(logLevelInfo) {
+		return
+	}
 	t := time.Now()
 	_, _ = fmt.Fprintf(gin.DefaultWriter, "[SYS] %v | %s \n", t.Format("2006/01/02 - 15:04:05"), s)
 }
 
 func SysError(s string) {
+	if !shouldLog(logLevelError) {
+		return
+	}
 	t := time.Now()
 	_, _ = fmt.Fprintf(gin.DefaultErrorWriter, "[SYS] %v | %s \n", t.Format("2006/01/02 - 15:04:05"), s)
 }

atsf_server/main.go

@@ -83,7 +83,7 @@ func main() {
 	if port == "" {
 		port = strconv.Itoa(*common.Port)
 	}
-	common.SysLog(fmt.Sprintf("server config: port=%s gin_mode=%s sqlite_path=%s redis_enabled=%t upload_path=%s log_dir=%s agent_token_configured=%t node_offline_threshold=%s", port, gin.Mode(), common.SQLitePath, common.RedisEnabled, common.UploadPath, valueOrDefault(*common.LogDir, "stdout"), common.AgentToken != "", common.NodeOfflineThreshold))
+	common.SysLog(fmt.Sprintf("server config: port=%s gin_mode=%s log_level=%s sqlite_path=%s redis_enabled=%t upload_path=%s log_dir=%s agent_token_configured=%t node_offline_threshold=%s", port, gin.Mode(), common.GetLogLevel(), common.SQLitePath, common.RedisEnabled, common.UploadPath, valueOrDefault(*common.LogDir, "stdout"), common.AgentToken != "", common.NodeOfflineThreshold))
 	common.SysLog(fmt.Sprintf("server listening on :%s", port))
 	err = server.Run(":" + port)
 	if err != nil {

docs/app-config.md

@@ -53,6 +53,7 @@ cd atsf_server
 export SESSION_SECRET='replace-with-random-string'
 export SQLITE_PATH='./atsflare.db'
 export GIN_MODE='release'
+export LOG_LEVEL='info'
 export PORT='3000'
 go run .
 ```
@@ -70,6 +71,7 @@ services:
 			SESSION_SECRET: replace-with-random-string
 			SQLITE_PATH: /data/atsflare.db
 			GIN_MODE: release
+			LOG_LEVEL: info
 			PORT: "3000"
 		volumes:
 			- atsflare-data:/data
@@ -84,6 +86,7 @@ volumes:
 | --- | --- | --- | --- |
 | `PORT` | 指定 Server 实际监听端口 | `3000` | `PORT=3000` |
 | `GIN_MODE` | 指定 Gin 运行模式；仅当值为 `debug` 时启用 debug，其余情况按 release 运行 | 非 `debug` 默认按 release 运行 | `GIN_MODE=release` |
+| `LOG_LEVEL` | 指定系统日志等级；支持 `debug`/`info`/`warn`/`error`（`warning` 兼容为 `warn`） | `info` | `LOG_LEVEL=warn` |
 | `SESSION_SECRET` | Session 签名密钥；生产环境必须显式设置，避免重启后会话失效 | 启动时随机生成 UUID | `SESSION_SECRET=replace-with-random-string` |
 | `SQLITE_PATH` | SQLite 数据库文件路径 | `atsflare.db` | `SQLITE_PATH=/data/atsflare.db` |
 | `SQL_DSN` | MySQL DSN；设置后优先使用 MySQL，而不是 SQLite | 未设置时使用 SQLite | `SQL_DSN=user:pass@tcp(127.0.0.1:3306)/atsflare` |
@@ -95,6 +98,7 @@ volumes:
 
 * `SQL_DSN` 与 `SQLITE_PATH` 同时存在时，优先使用 `SQL_DSN`
 * `SESSION_SECRET` 未固定时，每次重启都会生成新的随机值，已登录用户的 Cookie 会失效
+* `LOG_LEVEL` 未设置或设置为不支持的值时，将回退为 `info`
 * `REDIS_CONN_STRING` 未配置时，相关能力将回退为进程内实现
 * `UPLOAD_PATH` 目录在启动时若不存在会自动创建