zhywebcore/EC.Web/Areas/LR_AppManager/Controllers/DTImgController.cs

using learun.iapplication;
using learun.util;
using Microsoft.AspNetCore.Mvc;
using System;
using System.IO;
using System.Threading.Tasks;

namespace EC.Web.Areas.LR_AppManager
{
	/// <summary>
	/// 版 本 EasyCode EC管理后台
	/// Copyright (c) 2019-present EC管理有限公司
	/// 创建人：tobin
	/// 日 期：2020.04.08
	/// 描 述：App首页图片管理
	/// </summary>
	[Area("LR_AppManager")]
	public class DTImgController : MvcControllerBase
	{
		private readonly DTImgIBLL _dTImgIBLL;
		private readonly ImgIBLL _imgIBLL;

		public DTImgController(DTImgIBLL dTImgIBLL, ImgIBLL imgIBLL)
		{
			_dTImgIBLL = dTImgIBLL;
			_imgIBLL = imgIBLL;
		}

		#region 视图功能

		/// <summary>
		/// 主页面
		/// <summary>
		/// <returns></returns>
		[HttpGet]
		public IActionResult Index()
		{
			return View();
		}

		/// <summary>
		/// 表单页
		/// <summary>
		/// <returns></returns>
		[HttpGet]
		public IActionResult Form()
		{
			return View();
		}

		#endregion 视图功能

		#region 获取数据

		/// <summary>
		/// 获取列表数据
		/// </summary>
		/// <returns></returns>
		[HttpGet]
		[AjaxOnly]
		public async Task<IActionResult> GetList()
		{
			var data = await _dTImgIBLL.GetList();
			return Success(data);
		}

		/// <summary>
		/// 获取列表分页数据
		/// </summary>
		/// <param name="pagination">分页参数</param>
		/// <param name="queryJson">查询参数</param>
		/// <returns></returns>
		[HttpGet]
		[AjaxOnly]
		public async Task<IActionResult> GetPageList(string pagination, string queryJson)
		{
			Pagination paginationobj = pagination.ToObject<Pagination>();
			var data = await _dTImgIBLL.GetPageList(paginationobj, queryJson);
			var jsonData = new
			{
				rows = data,
				paginationobj.total,
				paginationobj.page,
				paginationobj.records
			};
			return Success(jsonData);
		}

		/// <summary>
		/// 获取表单数据
		/// <param name="keyValue">主键</param>
		/// <summary>
		/// <returns></returns>
		[HttpGet]
		[AjaxOnly]
		public async Task<IActionResult> GetFormData(string keyValue)
		{
			var data = await _dTImgIBLL.GetEntity(keyValue);
			return Success(data);
		}

		#endregion 获取数据

		#region 提交数据

		/// <summary>
		/// 删除实体数据
		/// <param name="keyValue">主键</param>
		/// <summary>
		/// <returns></returns>
		[HttpPost]
		[AjaxOnly]
		public async Task<IActionResult> DeleteForm(string keyValue)
		{
			var dTImgEntity = await _dTImgIBLL.GetEntity(keyValue);
			if (dTImgEntity != null && !string.IsNullOrEmpty(dTImgEntity.F_FileName))
			{
				await _imgIBLL.DeleteEntity(dTImgEntity.F_FileName);
			}
			await _dTImgIBLL.DeleteEntity(keyValue);
			return SuccessInfo("删除成功！");
		}

		/// <summary>
		/// 保存实体数据（新增、修改）
		/// <param name="keyValue">主键</param>
		/// <summary>
		/// <returns></returns>
		[HttpPost]
		[AjaxOnly]
		public async Task<IActionResult> SaveForm(string keyValue, DTImgEntity entity)
		{
			await _dTImgIBLL.SaveEntity(keyValue, entity);
			return SuccessInfo("保存成功！");
		}

		/// <summary>
		/// 图片上传
		/// </summary>
		/// <param name="keyValue">主键</param>
		/// <param name="entity">印章实体</param>
		/// <returns></returns>
		[HttpPost]
		public async Task<IActionResult> UploadFile(string keyValue, DTImgEntity entity)
		{
			var files = Request.Form.Files;
			//没有文件上传，直接返回
			if (files[0].Length == 0 || string.IsNullOrEmpty(files[0].FileName))
			{
				await _dTImgIBLL.SaveEntity(keyValue, entity);
			}
			else
			{
				string FileEextension = Path.GetExtension(files[0].FileName);
				ImgEntity imgEntity = null;
				if (string.IsNullOrEmpty(entity.F_FileName))
				{
					imgEntity = new ImgEntity();
				}
				else
				{
					imgEntity = await _imgIBLL.GetEntity(entity.F_FileName);
				}

				imgEntity.F_Name = files[0].FileName;
				imgEntity.F_ExName = FileEextension;
				byte[] bytes = new byte[files[0].Length];
				MemoryStream ms = new MemoryStream();
				files[0].CopyTo(ms);
				ms.Flush();
				ms.Position = 0;
				ms.Read(bytes, 0, bytes.Length);
				ms.Close();
				ms.Dispose();
				imgEntity.F_Content = Convert.ToBase64String(bytes);
				await _imgIBLL.SaveEntity(entity.F_FileName, imgEntity);

				entity.F_FileName = imgEntity.F_Id;
				await _dTImgIBLL.SaveEntity(keyValue, entity);
			}
			return SuccessInfo("保存成功。");
		}

		/// <summary>
		/// 获取图片文件
		/// </summary>
		/// <param name="keyValue">主键</param>
		/// <returns></returns>
		[HttpGet]
		public async Task<IActionResult> GetImg(string keyValue)
		{
			var stampEntity = await _dTImgIBLL.GetEntity(keyValue);
			if (stampEntity != null && !string.IsNullOrEmpty(stampEntity.F_FileName))
			{
				ImgEntity imgEntity = await _imgIBLL.GetEntity(stampEntity.F_FileName);
				if (imgEntity != null && !string.IsNullOrEmpty(imgEntity.F_Content))
				{
					string imgContent = imgEntity.F_Content.Replace("data:image/" + imgEntity.F_ExName.Replace(".", "") + ";base64,", "");
					byte[] arr = Convert.FromBase64String(imgContent);
					return File(arr, "application/octet-stream");
				}
				else
				{
					byte[] arr2 = FileHelper.ReadRoot("/img/add.jpg");
					return File(arr2, "application/octet-stream");
				}
			}
			else
			{
				byte[] arr3 = FileHelper.ReadRoot("/img/add.jpg");
				return File(arr3, "application/octet-stream");
			}
		}

		/// <summary>
		/// 启用/停用
		/// </summary>
		/// <param name="keyValue">主键</param>
		/// <param name="state">状态1启用0禁用</param>
		/// <returns></returns>
		[HttpPost]
		[AjaxOnly]
		public async Task<IActionResult> UpDateSate(string keyValue, int state)
		{
			await _dTImgIBLL.UpdateState(keyValue, state);
			return SuccessInfo((state == 1 ? "启用" : "禁用") + "成功！");
		}

		#endregion 提交数据
	}
}