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在C#中,你可以使用HttpClient
類來調(diào)用第三方API。這是一個(gè)簡(jiǎn)單的示例,展示了如何使用AJAX調(diào)用第三方API:
首先,確保你已經(jīng)安裝了System.Net.Http
命名空間。如果沒有,請(qǐng)?jiān)陧?xiàng)目中添加對(duì)System.Net.Http
的引用。
創(chuàng)建一個(gè)HttpClient
實(shí)例,并設(shè)置基本URL和默認(rèn)請(qǐng)求頭(如果需要):
using System.Net.Http;
HttpClient httpClient = new HttpClient();
httpClient.BaseAddress = new Uri("https://api.example.com");
httpClient.DefaultRequestHeaders.Accept.Clear();
httpClient.DefaultRequestHeaders.Accept.Add(new MediaTypeWithQualityHeaderValue("application/json"));
HttpClient
實(shí)例發(fā)起GET、POST、PUT或DELETE請(qǐng)求:// GET請(qǐng)求
HttpResponseMessage getResponse = await httpClient.GetAsync("/endpoint");
string getResponseContent = await getResponse.Content.ReadAsStringAsync();
// POST請(qǐng)求
HttpContent postContent = new StringContent("{\"key\":\"value\"}", Encoding.UTF8, "application/json");
HttpResponseMessage postResponse = await httpClient.PostAsync("/endpoint", postContent);
string postResponseContent = await postResponse.Content.ReadAsStringAsync();
// PUT請(qǐng)求
HttpContent putContent = new StringContent("{\"key\":\"value\"}", Encoding.UTF8, "application/json");
HttpResponseMessage putResponse = await httpClient.PutAsync("/endpoint", putContent);
string putResponseContent = await putResponse.Content.ReadAsStringAsync();
// DELETE請(qǐng)求
HttpResponseMessage deleteResponse = await httpClient.DeleteAsync("/endpoint");
string deleteResponseContent = await deleteResponse.Content.ReadAsStringAsync();
if (getResponse.IsSuccessStatusCode)
{
// 解析JSON響應(yīng)
dynamic getResponseData = JsonConvert.DeserializeObject(getResponseContent);
Console.WriteLine(getResponseData.someProperty);
}
else
{
Console.WriteLine($"Error: {getResponse.StatusCode} - {getResponse.ReasonPhrase}");
}
HttpClient
實(shí)例時(shí),請(qǐng)將其釋放:httpClient.Dispose();
注意:在實(shí)際項(xiàng)目中,你可能需要根據(jù)第三方API的文檔來構(gòu)建請(qǐng)求和處理響應(yīng)。此外,為了提高性能和可維護(hù)性,你可以考慮使用IHttpClientFactory
來管理HttpClient
實(shí)例。
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