修改后端初始化

server/config/config.go

@@ -0,0 +1,61 @@
+package config
+
+import (
+	"os"
+
+	"gopkg.in/yaml.v3"
+)
+
+// Config 应用配置结构体
+type Config struct {
+	Server ServerConfig `yaml:"server"`
+	OSS    OSSConfig    `yaml:"oss"`
+	MySQL  MySQLConfig  `yaml:"mysql"`
+	Upload UploadConfig `yaml:"upload"`
+}
+
+// ServerConfig 服务器配置
+type ServerConfig struct {
+	Port           string   `yaml:"port"`
+	AllowedOrigins []string `yaml:"allowed_origins"`
+}
+
+// OSSConfig 阿里云OSS配置
+type OSSConfig struct {
+	Endpoint        string `yaml:"endpoint"`
+	BucketName      string `yaml:"bucket_name"`
+	AccessKeyID     string `yaml:"access_key_id"`
+	AccessKeySecret string `yaml:"access_key_secret"`
+	ObjectPrefix    string `yaml:"object_prefix"`
+}
+
+// MySQLConfig MySQL数据库配置
+type MySQLConfig struct {
+	Host     string `yaml:"host"`
+	Port     int    `yaml:"port"`
+	Username string `yaml:"username"`
+	Password string `yaml:"password"`
+	Database string `yaml:"database"`
+	Charset  string `yaml:"charset"`
+}
+
+// UploadConfig 上传配置
+type UploadConfig struct {
+	AllowImageTypes string `yaml:"allow_image_types"`
+	MaxFileSize     int64  `yaml:"max_file_size"`
+}
+
+// LoadConfig 从文件加载配置
+func LoadConfig(filename string) (*Config, error) {
+	data, err := os.ReadFile(filename)
+	if err != nil {
+		return nil, err
+	}
+
+	var config Config
+	if err := yaml.Unmarshal(data, &config); err != nil {
+		return nil, err
+	}
+
+	return &config, nil
+}