.NET6, .Net Core 中使用 HttpClient。HttpClient注入基础配置的用法

先注入

string token="eyJhbGciOiJSUzI1NiIsImt你的token";
builder.Services.AddHttpClient("education", httpClient =>
{
    // 注意注意，与消息 URI 组合时，将排除基 URI 中最右侧“/”后的所有字符。 请参阅 RFC 3986 统一资源标识符 (URI) 泛型语法规范。
    //httpClient.BaseAddress = new Uri("http://127.0.0.1:8804/education/api");
    httpClient.BaseAddress = new Uri("http://127.0.0.1:8804/");
    httpClient.DefaultRequestHeaders.Accept.Add(new MediaTypeWithQualityHeaderValue("application/json"));
    httpClient.DefaultRequestHeaders.Add("Authorization", $"Bearer {token}");
});
// education线上
builder.Services.AddHttpClient("educationOnline", httpClient =>
{
    httpClient.BaseAddress = new Uri("https://smartedu-apis.xx.com/");
    httpClient.DefaultRequestHeaders.Accept.Add(new MediaTypeWithQualityHeaderValue("application/json"));
    httpClient.DefaultRequestHeaders.Add("Authorization", $"Bearer {token}");
});
builder.Services.AddHttpClient("labRoom", httpClient =>
{
    httpClient.BaseAddress = new Uri("http://127.0.0.1:8805/");
    httpClient.DefaultRequestHeaders.Accept.Add(new MediaTypeWithQualityHeaderValue("application/json"));
    httpClient.DefaultRequestHeaders.Add("Authorization", $"Bearer {token}");
});

使用

访问注入的education

[Route("api/[controller]")]
[ApiController]
public class MessageController : ControllerBase
{
    IHttpClientFactory _httpClientFactory;
    public MessageController(IHttpClientFactory httpClientFactory)
    {
        _httpClientFactory = httpClientFactory;
    }
    [HttpGet]
    public async void Get()
    {
        // 获取对应的httpclient
        var client = _httpClientFactory.CreateClient("education");
        // 构建post请求参数
        TaskMessageDTO taskMessageDTO = new TaskMessageDTO();
        taskMessageDTO.MessageContent = "干饭了干饭了！！！";
        taskMessageDTO.SendUser = "实验";
        taskMessageDTO.DescUser = "51399fc9cafc449092a0d0f90e6024af";
        taskMessageDTO.SysReminderLevel = 3;
        taskMessageDTO.MessageType = 3;
        taskMessageDTO.RouterPath = "/application-center";
        StringContent strcontent = new StringContent(JsonConvert.SerializeObject(taskMessageDTO), Encoding.UTF8, "application/json");
        //  发送请求拿到结果
        var response = await client.PostAsync("education/api/MessageApi/SendMessage", strcontent);
        HttpContent httpContent = response.Content;
        var result = await httpContent.ReadAsStringAsync();
    }
}

访问注入的labRoom

[HttpGet]
public async void Get()
{
    // 获取对应的httpclient
    var client = _httpClientFactory.CreateClient("labRoom");
    var response = await client.GetAsync("labRoom/api/MessageTask/GetTeacherTodayTeachingBad");
    HttpContent httpContent = response.Content;
    var result = await httpContent.ReadAsStringAsync();
}