fix version 1

module/base/logs/internal/logic/log/fetch.go

@@ -13,6 +13,7 @@ import (
 var (
 	DefaultPage = 1
 	DefaultSize = 50
+	MaxSize     = 200
 )
 
 func LogFetch(c *gin.Context) {
@@ -30,26 +31,27 @@ func LogFetch(c *gin.Context) {
 		tx    = impl.DBService.Model(&models.LogData{})
 	)
 
-	var size int
-	var page int
-	if request["op_name"] != "" {
-		tx.Where("op_name like ?", "%"+request["op_name"].(string)+"%")
-	}
-	if request["service"] != "" {
-		tx.Where("service like ?", "%"+request["service"].(string)+"%")
-	}
-	if request["op_ip"] != "" {
-		tx.Where("op_ip = ?", "%"+request["ip"].(string)+"%")
-	}
-	if request["level"] != "" {
-		tx.Where("level = ?", request["level"].(int))
+	// 分页参数归一化：page 至少为 1，size 默认 50 且不超过上限
+	page := normalizePage(getInt(request, "page"))
+	sizeInput := getInt(request, "size")
+	if sizeInput <= 0 {
+		// 兼容 page_size 写法
+		sizeInput = getInt(request, "page_size")
 	}
+	size := normalizeSize(sizeInput)
 
-	if page <= 0 {
-		page = DefaultPage
+	// 过滤条件统一用安全类型断言取值，键名与查询列保持一致
+	if opName := getString(request, "op_name"); opName != "" {
+		tx = tx.Where("op_name like ?", "%"+opName+"%")
 	}
-	if size <= 0 {
-		size = DefaultSize
+	if service := getString(request, "service"); service != "" {
+		tx = tx.Where("service like ?", "%"+service+"%")
+	}
+	if opIP := getString(request, "op_ip"); opIP != "" {
+		tx = tx.Where("op_ip = ?", opIP)
+	}
+	if level := getInt(request, "level"); level > 0 {
+		tx = tx.Where("level = ?", level)
 	}
 
 	if err := tx.Count(&count).Limit(size).Offset((page - 1) * size).Find(&data).Error; err != nil {
@@ -63,3 +65,43 @@ func LogFetch(c *gin.Context) {
 		"total": count,
 	})
 }
+
+// getString 安全读取字符串参数，缺失或类型不符时返回空串
+func getString(m map[string]any, key string) string {
+	if v, ok := m[key].(string); ok {
+		return v
+	}
+	return ""
+}
+
+// getInt 安全读取整型参数，兼容 JSON 反序列化产生的 float64
+func getInt(m map[string]any, key string) int {
+	switch v := m[key].(type) {
+	case int:
+		return v
+	case int64:
+		return int(v)
+	case float64:
+		return int(v)
+	}
+	return 0
+}
+
+// normalizePage 归一化页码，最小为 DefaultPage
+func normalizePage(page int) int {
+	if page < DefaultPage {
+		return DefaultPage
+	}
+	return page
+}
+
+// normalizeSize 归一化每页条数：默认 DefaultSize，并限制不超过 MaxSize
+func normalizeSize(size int) int {
+	if size <= 0 {
+		return DefaultSize
+	}
+	if size > MaxSize {
+		return MaxSize
+	}
+	return size
+}