diff --git a/24Hour/TwentySystemProxyClient.cs b/24Hour/TwentySystemProxyClient.cs
index 3416f1f..74a6009 100644
--- a/24Hour/TwentySystemProxyClient.cs
+++ b/24Hour/TwentySystemProxyClient.cs
@@ -10,9 +10,11 @@ namespace _24Hour
     public class TwentySystemProxyClient
     {
         private readonly HttpClient httpCliet;
-        public TwentySystemProxyClient(HttpClient _httpCliet)
+        private readonly IConfiguration configuration;
+        public TwentySystemProxyClient(HttpClient _httpCliet, IConfiguration _configuration)
         {
             this.httpCliet = _httpCliet;
+            this.configuration = _configuration;
 
             httpCliet.DefaultRequestHeaders.Add("Accept", "application/json");
             httpCliet.DefaultRequestHeaders.Add("User-Agent", "HttpClientFactory-Sample");
@@ -33,8 +35,20 @@ namespace _24Hour
             }.ConvertToGetParam();
             try
             {
-                var request = await httpCliet.GetAsync($"/TwentySystem/GetCaseInfo{param}");
-                var response = await request.EnsureSuccessStatusCode().Content.ReadAsStringAsync();
+                var response = await Task.Run(async () =>
+                {
+                    var connectionString = configuration.GetSection("CaseTwenty:UseOfflineData").Value;
+                    if (connectionString=="false")
+                    {
+                        var request = await httpCliet.GetAsync($"/TwentySystem/GetCaseInfo{param}");
+                        var response = await request.EnsureSuccessStatusCode().Content.ReadAsStringAsync();
+                        return response;
+                    }
+                    else
+                    {
+                        return await File.ReadAllTextAsync(Path.Combine(Environment.CurrentDirectory,"caselist.txt"));
+                    }
+                });
                 if (string.IsNullOrEmpty(response) == false)
                 {
                     var data = response.ConvertToModel<Result<Paging<CaseInfo>>>();
@@ -59,7 +73,7 @@ namespace _24Hour
                         {
                             PageCount = 0,
                             PageIndex = 0,
-                            PageSize  = 0,
+                            PageSize = 0,
                             RowsCount = 0,
                         }, new List<CaseInfo>());
                     }
@@ -89,12 +103,26 @@ namespace _24Hour
                 bmsah = bmsah,
                 dwbm = dwbm
             }.ConvertToGetParam();
-            var request = await httpCliet.GetAsync($"/TwentySystem/GetJZXX{param}");
-            var json = await request.EnsureSuccessStatusCode().Content.ReadAsStringAsync();
+           
+
+            var json = await Task.Run(async() =>
+            {
+                var connectionString = configuration.GetSection("CaseTwenty:UseOfflineData").Value;
+                if (connectionString == "false")
+                {
+                    var request = await httpCliet.GetAsync($"/TwentySystem/GetJZXX{param}");
+                    var jsonstr = await request.EnsureSuccessStatusCode().Content.ReadAsStringAsync();
+                    return jsonstr;
+                }
+                else
+                {
+                    return await File.ReadAllTextAsync(Path.Combine(Environment.CurrentDirectory, "jzlist.txt"));
+                }
+            });
             var res = json.ConvertToModel<Result<JZJBXXDto>>();
             if (res.IsSucceed == true)
             {
-                if (res.result==null)
+                if (res.result == null)
                 {
                     result.IsSucceed = false;
                     result.Message = "卷宗目录为空";
@@ -108,7 +136,7 @@ namespace _24Hour
                     return result;
                 }
                 convert.Id = Guid.NewGuid().ToString();
-                if (convert?.jzml?.Any()==true)
+                if (convert?.jzml?.Any() == true)
                 {
                     await Task.Delay(5);
                     foreach (var ml in convert.jzml)
diff --git a/24Hour/appsettings.json b/24Hour/appsettings.json
index e592234..9b0711c 100644
--- a/24Hour/appsettings.json
+++ b/24Hour/appsettings.json
@@ -52,7 +52,8 @@
     "miniprogram_state": "trial"
   },
   "CaseTwenty": {
-    "SysAddress": "http://127.0.0.1:5194"
+    "SysAddress": "http://127.0.0.1:5194",
+    "UseOfflineData": "true"
   },
   "SyncDataFromJiguang": {
     "enable": "false"