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go-common/examples/logger_example.go

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package main
import (
"log"
"git.toowon.com/jimmy/go-common/config"
"git.toowon.com/jimmy/go-common/factory"
)
func main() {
// 加载配置
cfg, err := config.LoadFromFile("./config/example.json")
if err != nil {
log.Fatal("Failed to load config:", err)
}
// 方式1使用工厂创建日志记录器推荐方式
fac := factory.NewFactory(cfg)
logger, err := fac.GetLogger()
if err != nil {
log.Fatal("Failed to create logger:", err)
}
// 如果使用异步模式程序退出前需要关闭logger
defer logger.Close()
// 方式2直接使用工厂的日志方法黑盒模式更简单
// fac.LogInfo("Application started")
// fac.LogError("An error occurred")
// 示例1基本日志记录
logger.Info("Application started")
logger.Debug("Debug message: %s", "This is a debug message")
logger.Warn("Warning message: %s", "This is a warning")
logger.Error("Error message: %s", "This is an error")
// 示例2带字段的日志记录
logger.Infof(map[string]interface{}{
"user_id": 123,
"action": "login",
"ip": "192.168.1.1",
}, "User logged in successfully")
logger.Errorf(map[string]interface{}{
"error_code": 1001,
"module": "database",
}, "Failed to connect to database: %v", "connection timeout")
// 示例3不同级别的日志
logger.Debug("This is a debug log")
logger.Info("This is an info log")
logger.Warn("This is a warn log")
logger.Error("This is an error log")
// 示例4异步模式使用
// 如果配置中设置了 "async": true日志会异步写入
// 程序退出前需要调用 Close() 确保所有日志写入完成
// logger.Close()
// 注意Fatal和Panic会终止程序示例中不执行
// logger.Fatal("This would exit the program")
// logger.Panic("This would panic")
}