反序列化 Json 个对象的列表只给我一个对象名称的字符串？

Question

我有两个项目。一个正在向另一个发送 GET 请求以获得列表，该列表等同于发送请求的应用程序的列表。

调试时，我的 responseString 等于“System.Collections.Generic.List'1”，并且在 JSON 可视化工具中显示字符串不是 JSON 格式。为什么我的回复没有被传递为 JSON？

我知道 .NET 有一些方法可以让事情变得更简单，但我的项目卡在 .NET Framework 4.6.1 上

此代码发送 GET

[HttpGet]
public async Task<bool> GetUnsentApplicationsFromHiring()
{

     try
     {
         using (var client = new HttpClient())
         {
                var uri = new Uri("http://localhost:2904/Home/SendIntermediateApplicationsToDataNet");
                var response = await client.GetAsync(uri);
                var responseString = await response.Content.ReadAsStringAsync();

                var apps = JsonConvert.DeserializeObject<List<EmployeeApplication>>(responseString);

                return true;
         }
     }

这是接收 GET 并发回列表的代码。

[HttpGet]
public async Task<List<JobApplication>> SendIntermediateApplicationsToDataNet()
{
    try
    {
        var apps = DB<JobApplication>().GetAll().Where(x => x.CompletionStatus == CompletionStatusFlag.CompletedStep1
                             || x.CompletionStatus == CompletionStatusFlag.CompletedStep2).ToList();

        foreach(var app in apps)
        {
                
            if (app.CompletionStatus == CompletionStatusFlag.CompletedStep1)
            {
                app.SentCompletionStatus = SentCompletionStatusFlag.SentStep1;
            }
            else
            {
                app.SentCompletionStatus = SentCompletionStatusFlag.SentStep2;
            }
        }
                return apps;
}

Answer 1

请将 return 函数更改为：

[HttpGet]
public async Task<string> SendIntermediateApplicationsToDataNet()
{
    try
    {
        var apps = DB<JobApplication>().GetAll().Where(x => x.CompletionStatus == CompletionStatusFlag.CompletedStep1
                             || x.CompletionStatus == CompletionStatusFlag.CompletedStep2).ToList();

        foreach(var app in apps)
        {
                
            if (app.CompletionStatus == CompletionStatusFlag.CompletedStep1)
            {
                app.SentCompletionStatus = SentCompletionStatusFlag.SentStep1;
            }
            else
            {
                app.SentCompletionStatus = SentCompletionStatusFlag.SentStep2;
            }
        }
                return JsonConvert.SerializeObject(apps);;
}

反序列化 Json 个对象的列表只给我一个对象名称的字符串？

Deserilizing a list of Json Objects only gives me a string of the object name?

c#

json

get

.net-4.0

dotnet-httpclient