解决日志api的message字段为空的问题

backend/main.go

@@ -2,8 +2,10 @@ package main
 
 import (
 	"fmt"
+	"io"
 	"log"
 	"os"
+	"time"
 
 	"github.com/gin-gonic/gin"
 	"github.com/monitor/backend/config"
@@ -34,9 +36,17 @@ func isDefaultDBConfig(cfg *config.Config) bool {
 
 // main 函数启动服务器
 func main() {
-	// 配置日志：只输出必要的信息，禁用调试日志
+	// 配置日志：同时输出到文件和标准输出
+	logFileName := fmt.Sprintf("monitor-backend-%s.log", time.Now().Format("2006-01-02"))
+	logFile, err := os.OpenFile(logFileName, os.O_CREATE|os.O_WRONLY|os.O_APPEND, 0666)
+	if err != nil {
+		log.Printf("Warning: Failed to open log file %s, logging only to stdout: %v", logFileName, err)
+	} else {
+		defer logFile.Close()
+		// 创建一个多输出写入器，同时写入文件和标准输出
+		log.SetOutput(io.MultiWriter(os.Stdout, logFile))
+	}
 	log.SetFlags(log.Ldate | log.Ltime | log.Lshortfile)
-	log.SetOutput(os.Stdout)
 
 	// 加载配置
 	cfg, err := config.LoadConfig()
@@ -96,8 +106,9 @@ func main() {
 	r := gin.New()
 	// 添加必要的中间件
 	r.Use(gin.Recovery())
-	// 禁用Gin的默认日志
-	r.Use(gin.LoggerWithWriter(gin.DefaultWriter, "/health"))
+	// 设置Gin的日志输出到文件和标准输出
+	ginLogger := log.New(io.MultiWriter(os.Stdout, logFile), "[GIN] ", log.Ldate|log.Ltime)
+	r.Use(gin.LoggerWithWriter(ginLogger.Writer()))
 
 	// 设置CORS
 	r.Use(func(c *gin.Context) {