Json读取储存及外置读取txt 和图片

unity 加载Json读取储存及外置读取txt 图片静态工具

 public static class   JsonHelper
    {
        public static string ToPrettyJson<T>(T obj) where T : class
        {
            return JsonUtility.ToJson(obj, true);
        }
       public static T FromPrettyJson<T>(string json) where T : class
        {
            return JsonUtility.FromJson<T>(json);
        }

        #region 读取JSON文件
        /// <summary>
        /// 保存json
        /// </summary>
        /// <typeparam name="T">数据结构类</typeparam>
        /// <param name="pathFile">文件夹名字</param>
        /// <param name="fileName">文件名字</param>
        /// <param name="obj">对应数据结构</param>
        public static void OnWriteSaveJson<T>(string pathFile, string fileName, T obj)
        {
            string json = JsonUtility.ToJson(obj, true);
            string path = System.IO.Path.Combine(UnityEngine.Application.streamingAssetsPath,  pathFile , $"{fileName}.json");
            path = path.Replace("\\", "/");
            System.IO.Directory.CreateDirectory(System.IO.Path.GetDirectoryName(path));
            System.IO.File.WriteAllText(path, json);
            Debug.Log("保存成功: " + path + json);
        }

        /// <summary>
        /// 读取加载json
        /// </summary>
        /// <typeparam name="T"></typeparam>
        /// <param name="pathFile">文件夹类型名字</param>
        /// <param name="jsonName">文件名字</param>
        /// <param name="obj">类型</param>
        /// <returns></returns>
        public static T OnReadLoadJson<T>(string pathFile, string jsonName, T obj)
        {
            string path = System.IO.Path.Combine(Application.streamingAssetsPath, pathFile + "/");
            string[] jsonFiles = System.IO.Directory.GetFiles(path, "*.json");

            string fullPath = Path.Combine(path, jsonName + ".json");
            if (File.Exists(fullPath))
            {
                string jsonContent = File.ReadAllText(fullPath); // 读取 JSON 文件内容
                obj = JsonUtility.FromJson<T>(jsonContent);
            }
            return obj;
        }
        #endregion


        #region 读取外置文件

        
        /// <summary>
        /// 读取外置文件 txt
        /// </summary>
        /// <param name="FileName"></param>
        /// <param name="useId"></param>
        public static string OnReadLoadText(string FileName, string useId = "UseID")
        {
            string path = Path.Combine(Application.dataPath, "..", "Configs", FileName, $"{useId}.txt");
            string txtContent = "";
            if (File.Exists(path))
            {
                txtContent = File.ReadAllText(path);
            }
            return txtContent;
        }
        /// <summary>
        /// 加载图片
        /// </summary>
        /// <param name="FileName">子文件夹</param>
        /// <param name="picName">图片名</param>
        /// <returns></returns>
        public static Sprite OnReadLoadPicture(string FileName, string picName)
        {
            string path = Path.Combine(Application.dataPath, "..", "Configs", FileName, $"{picName}.jpg");
            byte[] bytes = File.ReadAllBytes(path);
            Texture2D tex = new Texture2D(2, 2);
            
            tex.LoadImage(bytes);
            Sprite sp = Sprite.Create(
                  tex,                                   // 源纹理
                  new Rect(0, 0, tex.width, tex.height), // 截图区域（整张图）
                  new Vector2(0.5f, 0.5f)                        // pivot 中心点(0~1)
             );
            return sp;
        }
        #endregion
    }

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