封装加载图片的方法，在更新数据前先删除原来的图片

24Hour/Controllers/Common/LawyerArchivesController.cs

@@ -1782,6 +1782,25 @@ namespace _24Hour.Controllers.Common
                     lawyerservices = default(List<App_LawyerServicesModel>),
                     users = default(List<App_Sys_UserModel>)
                 });
+                //替换数据前先删除之前保存的图片
+                var deleteOldData = (string? jsonpath) =>
+                {
+                    if (string.IsNullOrEmpty(jsonpath))
+                    {
+                        return;
+                    }
+                    var photos = jsonpath.ConvertToModel<List<string>>() ?? new List<string>();
+                    foreach (var photo in photos.Where(x => x != null))
+                    {
+                        var urlpath = photo.Split('/');
+                        var filepath = Path.Combine(Environment.CurrentDirectory, "wwwroot", Path.Combine(urlpath));
+                        if (System.IO.File.Exists(filepath))
+                        {
+                            System.IO.File.Delete(filepath);
+                        }
+                    }
+                };
+
                 foreach (var userim in importdata.users.Where(x => x != null))
                 {
                     var user = await _db.Queryable<App_Sys_UserModel>()
@@ -1818,6 +1837,9 @@ namespace _24Hour.Controllers.Common
                     }
                     else
                     {
+                        deleteOldData(user.cardIdphoto);
+                        deleteOldData(user.identityphoto);
+
                         user.cardIdphoto = cardids;
                         user.identityphoto = files;
                         user.unitCode = _userdata.unitCode;
@@ -1842,46 +1864,23 @@ namespace _24Hour.Controllers.Common
                 {
                     var svc = await _db.Queryable<App_LawyerServicesModel>()
                         .Where(x => x.Id == lawyersvc.Id).FirstAsync();
-
+                    var loadphoto = (string dirname) =>
-                    var annexphoto = Path.Combine(ziplawyersvcs, lawyersvc.Id, "annexs");
+                    {
-                    var annexs = new DirectoryInfo(annexphoto)
+                        var dirpath = Path.Combine(ziplawyersvcs, lawyersvc.Id, dirname);
-                        .GetFiles()
+                        var photos = new DirectoryInfo(dirpath)
-                        .Select(x => "/CaseFile/imports/" + Path.GetRelativePath(dir, x.FullName)
-                        .Replace(@"\", @"/"))
-                        .ToList()
-                        .ConvertToJsonStr();
-
-                    var legalAidPhoto = Path.Combine(ziplawyersvcs, lawyersvc.Id, "legalAidPhoto");
-                    var legalAidPhotos = new DirectoryInfo(legalAidPhoto)
-                        .GetFiles()
-                        .Select(x => "/CaseFile/imports/" + Path.GetRelativePath(dir, x.FullName)
-                        .Replace(@"\", @"/"))
-                        .ToList()
-                        .ConvertToJsonStr();
-
-                    var relationshipProofPhoto = Path.Combine(ziplawyersvcs, lawyersvc.Id, "relationshipProofPhoto");
-                    var relationshipProofPhotos = new DirectoryInfo(relationshipProofPhoto)
-                        .GetFiles()
-                        .Select(x => "/CaseFile/imports/" + Path.GetRelativePath(dir, x.FullName)
-                        .Replace(@"\", @"/"))
-                        .ToList()
-                        .ConvertToJsonStr();
-
-                    var otherPhoto = Path.Combine(ziplawyersvcs, lawyersvc.Id, "otherPhoto");
-                    var otherPhotos = new DirectoryInfo(otherPhoto)
                             .GetFiles()
                             .Select(x => "/CaseFile/imports/" + Path.GetRelativePath(dir, x.FullName)
                             .Replace(@"\", @"/"))
                             .ToList()
                             .ConvertToJsonStr();
+                        return photos;
+                    };
 
-                    var departmentPhoto = Path.Combine(ziplawyersvcs, lawyersvc.Id, "departmentPhoto");
+                    var annexs = loadphoto("annexs");
-                    var departmentPhotos = new DirectoryInfo(departmentPhoto)
+                    var legalAidPhotos = loadphoto("legalAidPhoto");
-                        .GetFiles()
+                    var relationshipProofPhotos = loadphoto("relationshipProofPhoto");
-                        .Select(x => "/CaseFile/imports/" + Path.GetRelativePath(dir, x.FullName)
+                    var otherPhotos = loadphoto("otherPhoto");
-                        .Replace(@"\", @"/"))
+                    var departmentPhotos = loadphoto("departmentPhoto");
-                        .ToList()
-                        .ConvertToJsonStr();
 
                     if (svc == null)
                     {
@@ -1912,6 +1911,14 @@ namespace _24Hour.Controllers.Common
                        .Where(x => x.identity == "律师")
                        .FirstAsync();
 
+                        
+                        deleteOldData(svc?.annex);
+                        deleteOldData(svc?.legalAidPhoto);
+                        deleteOldData(svc?.relationshipProofPhoto);
+                        deleteOldData(svc?.otherPhoto);
+                        deleteOldData(svc?.departmentPhoto);
+
+
                         svc.createuserId = lawyer.Id;
                         svc.annex = annexs;
                         svc.legalAidPhoto = legalAidPhotos;