项目初始化

config/config.go

@@ -0,0 +1,52 @@
+package config
+
+import (
+	"os"
+)
+
+// Config 应用配置
+type Config struct {
+	Server ServerConfig
+	DB     DBConfig
+}
+
+// ServerConfig 服务器配置
+type ServerConfig struct {
+	Port string
+	Mode string // debug, release, test
+}
+
+// DBConfig 数据库配置
+type DBConfig struct {
+	Host     string
+	Port     string
+	User     string
+	Password string
+	DBName   string
+}
+
+// LoadConfig 加载配置
+func LoadConfig() *Config {
+	return &Config{
+		Server: ServerConfig{
+			Port: getEnv("SERVER_PORT", "8080"),
+			Mode: getEnv("GIN_MODE", "debug"),
+		},
+		DB: DBConfig{
+			Host:     getEnv("DB_HOST", "localhost"),
+			Port:     getEnv("DB_PORT", "3306"),
+			User:     getEnv("DB_USER", "root"),
+			Password: getEnv("DB_PASSWORD", ""),
+			DBName:   getEnv("DB_NAME", "relationship_db"),
+		},
+	}
+}
+
+// getEnv 获取环境变量，如果不存在则返回默认值
+func getEnv(key, defaultValue string) string {
+	if value := os.Getenv(key); value != "" {
+		return value
+	}
+	return defaultValue
+}
+