System.Net.Http.JsonJson的序列化和反序列化是我们日常常见的操作，通过System.Net.Http.Json我们可以用少量的代码实现上述操作.正如在github设计文档中所描述 Serializing and deserializing JSON payloads from the network is a very common operation for clients, especially in the upcoming Blazor environment. Right now, sending a JSON payload to the server requires multiple lines of code, which will be a major speed bump for those customers. We'd like to add extension methods on top of HttpClient that allows doing those operations with a single method call. 他的依赖项也非常的少目前只依赖System.Net.Http, System.Text.Json 在.NET中安装和使用目前它还是预览版本 dotnet add package System.Net.Http.Json public static async Task<Customer> GetCustomerAsync()
{
HttpClient clinet=new HttpClient();
var request = new HttpRequestMessage(HttpMethod.Get, "http://localhost:5000/customers");
var response = await clinet.SendAsync(request);
return await response.Content.ReadFromJsonAsync<Customer>();
}通过ReadFromJsonAsync直接可以反序列化 public static async Task<Customer> CreateCustomerAsync()
{
HttpClient clinet = new HttpClient();
var customer=new Customer()
{
Id = "1",
Name = "Fh"
};
var request = new HttpRequestMessage(HttpMethod.Post, "http://localhost:5000/create");
request.Content = JsonContent.Create(customer);
var response = await clinet.SendAsync(request);
var content=response.Content.ReadAsStringAsync();
return customer;
}还可以以下面这种简洁方式使用 _client.GetFromJsonAsync<IReadOnlyList<Customer>>("/customers");
_client.GetFromJsonAsync<Customer?>($"/customers/{id}");
_client.PutAsJsonAsync($"/customers/{customerId}", customer);if (response.IsSuccessStatusCode)
{
try
{
return await response.Content.ReadFromJsonAsync<User>();
}
catch (NotSupportedException) // When content type is not valid
{
Console.WriteLine("The content type is not supported.");
}
catch (JsonException) // Invalid JSON
{
Console.WriteLine("Invalid JSON.");
}
}还可以通过NotSupportedException和JsonException异常类处理相应的异常. Referencehttps://github.com/hueifeng/BlogSample/tree/master/src/SYSTEMNETHTTPJSON https://www./sending-and-receiving-json-using-httpclient-with-system-net-http-json |
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