重构: 将API配置提取到config模块并优化错误处理

- 将硬编码的API配置移到config模块，支持环境变量配置
- 添加API Key验证和配置检查
- 添加图片上传大小限制（10MB）
- 移除不必要的注释，简化代码
- 改进错误处理和日志记录

config/config.go

@@ -11,6 +11,10 @@ var (
 	Password = getEnv("JWTS_PASSWORD", "")
 	Semester = getEnv("JWTS_SEMESTER", "2025-20262")
 	TWFID    = getEnv("JWTS_TWFID", "")
+
+	RecognizerAPIURL = getEnv("RECOGNIZER_API_URL", "https://api.littlelan.cn/v1/chat/completions")
+	RecognizerAPIKey = getEnv("RECOGNIZER_API_KEY", "")
+	RecognizerModel  = getEnv("RECOGNIZER_MODEL", "qwen3.5-plus")
 )
 
 // getEnv 从环境变量获取配置，提供默认值

main.go

@@ -97,7 +97,6 @@ func runHTTPServer() {
 
 	// 课表图片识别接口
 	r.POST("/recognize", func(c *gin.Context) {
-		// 读取上传的图片文件
 		file, header, err := c.Request.FormFile("image")
 		if err != nil {
 			c.JSON(http.StatusBadRequest, gin.H{"error": "请上传图片文件", "details": err.Error()})
@@ -107,24 +106,25 @@ func runHTTPServer() {
 
 		log.Printf("收到图片上传: %s, 大小: %d bytes", header.Filename, header.Size)
 
-		// 读取图片数据
+		if header.Size > 10*1024*1024 {
+			c.JSON(http.StatusBadRequest, gin.H{"error": "图片文件过大", "max_size": "10MB"})
+			return
+		}
+
 		imageData, err := io.ReadAll(file)
 		if err != nil {
 			c.JSON(http.StatusInternalServerError, gin.H{"error": "读取图片失败", "details": err.Error()})
 			return
 		}
 
-		// 调用识别模块
 		courses, err := recognizer.RecognizeFromBytes(imageData)
 		if err != nil {
 			c.JSON(http.StatusInternalServerError, gin.H{"error": "识别失败", "details": err.Error()})
 			return
 		}
 
-		// 打印识别结果
 		recognizer.PrintCourses(courses)
 
-		// 保存到JSON文件
 		err = recognizer.SaveToJSON(courses, "schedule_result.json")
 		if err != nil {
 			log.Printf("保存JSON失败: %v", err)

recognizer/recognizer.go

@@ -13,16 +13,10 @@ import (
 	"strings"
 	"time"
 
+	"jwts/config"
 	"jwts/models"
 )
 
-// 配置 - 使用您提供的API配置
-const (
-	APIURL = "https://api.littlelan.cn/v1/chat/completions"
-	APIKey = "sk-Ll7P7vuiLum3N0pj7XaYfwHhD5UW1rDYlFoQ7F5JmeBfTewZ"
-	Model  = "qwen3.5-plus" // 使用qwen3.5-plus模型
-)
-
 // APIRequest API请求结构
 type APIRequest struct {
 	Model          string    `json:"model"`
@@ -68,6 +62,11 @@ func init() {
 	client = &http.Client{
 		Timeout: 120 * time.Second,
 	}
+
+	if config.RecognizerAPIKey == "" {
+		log.Println("警告: RECOGNIZER_API_KEY 未设置，图片识别功能将无法使用")
+	}
+
 	log.Println("recognizer模块已初始化")
 }
 
@@ -133,12 +132,14 @@ func callAPI(imageBase64 string) ([]models.Course, error) {
 
 // callAPISingle 单次API调用
 func callAPISingle(imageBase64 string) ([]models.Course, error) {
-	// 构建请求 - 发送图片给AI识别
+	if config.RecognizerAPIKey == "" {
-	// 禁用qwen3.5的思考模式，避免产生大量不必要的token消耗
+		return nil, fmt.Errorf("RECOGNIZER_API_KEY 未配置")
+	}
+
 	falseVal := false
 	zero := 0
 	apiReq := APIRequest{
-		Model:          Model,
+		Model:          config.RecognizerModel,
 		MaxTokens:      4000,
 		EnableThinking: &falseVal,
 		ThinkingBudget: &zero,
@@ -175,14 +176,14 @@ JSON格式要求：
 		return nil, err
 	}
 
-	httpReq, err := http.NewRequest("POST", APIURL, bytes.NewBuffer(jsonData))
+	httpReq, err := http.NewRequest("POST", config.RecognizerAPIURL, bytes.NewBuffer(jsonData))
 	if err != nil {
 		return nil, err
 	}
 
 	httpReq.Header = http.Header{
 		"Content-Type":  []string{"application/json"},
-		"Authorization": []string{"Bearer " + APIKey},
+		"Authorization": []string{"Bearer " + config.RecognizerAPIKey},
 	}
 
 	fmt.Println("[识别] 正在调用API进行识别...")