public IActionResult SuccessRes(string msg = "")
{
apiResult = new LayuiDataModel()
{
msg = msg
};
return(Json(apiResult));
}
/// <summary>
/// 成功返回单个数据object
/// </summary>
/// <param name="data"></param>
/// <param name="msg"></param>
/// <returns></returns>
public IActionResult SuccessRes(object data, string msg = "", string code = "")
{
apiResult = new LayuiDataModel()
{
msg = msg,
data = data,
code = code
};
return(Json(apiResult, jsonSerializerSettings));
}
public IActionResult ErrRes(string msg = "", string code = "")
{
apiResult = new LayuiDataModel()
{
success = false,
msg = msg,
code = code
};
return(Json(apiResult));
}
public IActionResult SuccessRes <T>(List <T> data, long count, string msg = "")
{
apiResult = new LayuiDataModel()
{
data = data,
msg = msg,
count = count,
};
return(Json(apiResult, jsonSerializerSettings));
}
public IActionResult SuccessRes <T>(List <T> data, string msg = "")
{
apiResult = new LayuiDataModel()
{
data = data,
msg = msg,
count = data.LongCount(),
};
return(Json(apiResult));
}
/// <summary>
/// 普通文件上传，支持多个文件
/// </summary>
/// <returns></returns>
public async Task <IActionResult> ImgUpload()
{
Dictionary <string, string> extTable = new Dictionary <string, string>();
extTable.Add("image", "gif,jpg,jpeg,png,bmp");
extTable.Add("flash", "swf,flv");
extTable.Add("media", "swf,flv,mp3,wav,wma,wmv,mid,avi,mpg,asf,rm,rmvb");
extTable.Add("file", "doc,docx,xls,xlsx,ppt,htm,html,txt,zip,rar,gz,bz2,apk,ipa,wgt");
//最大文件大小
int maxSize = 1024 * 1024 * 10;//10M上传大小限制
var context = Request.HttpContext;
//文件类型判断
string dirName = Request.Query["dir"];
if (string.IsNullOrEmpty(dirName))
{
dirName = "image";
}
if (!extTable.ContainsKey(dirName))
{
return(ShowError("文件类型不正确。"));
}
//保存相对地址构造
string saveDir = Request.Query["saveDir"];
string saveDirStr = null;
if (saveDir == null)
{
saveDirStr = "tmp";
}
else
{
saveDirStr = saveDir.ToString();
}
//相对程序主目录路径
string savePath = "/upload/cms/" + dirName + "/" + saveDirStr;
//返回文件集合
List <string> returnImgs = new List <string>();
//循环保存文件
foreach (var imgFile in Request.Form.Files)
{
var fileName = imgFile.FileName;
var fileExt = Path.GetExtension(fileName).ToLower();
if (imgFile == null || imgFile.Length > maxSize)
{
return(ShowError("上传文件大小超过限制。"));
}
if (String.IsNullOrEmpty(fileExt) || Array.IndexOf(((String)extTable[dirName]).Split(','), fileExt.Substring(1).ToLower()) == -1)
{
return(ShowError("上传文件扩展名是不允许的扩展名。\n只允许" + ((String)extTable[dirName]) + "格式。"));
}
//文件保存目录
string dirPath = _hostingEnvironment.WebRootPath + savePath;
if (!Directory.Exists(dirPath))
{
Directory.CreateDirectory(dirPath);
}
//新文件名称
var newFileName = DateTime.Now.ToString("_yyyyMMddHHmmss_ffff", DateTimeFormatInfo.InvariantInfo) + fileExt;
var filePath = dirPath + "/" + newFileName;//新文件物理全路径
using (FileStream fs = System.IO.File.Create(filePath))
{
await imgFile.CopyToAsync(fs);
fs.Flush();
}
returnImgs.Add(savePath + "/" + newFileName);
}
//构造返回数据
var apiResult = new LayuiDataModel()
{
msg = string.Join(",", returnImgs),
code = "0",
success = true
};
if (returnImgs.Count == 0)
{
apiResult.success = false;
}
return(Json(apiResult));
}
