场景
Winform中怎样使用HttpClient调用http的get和post接口并将接口返回json数据解析为实体类:
Winform中怎样使用HttpClient调用http的get和post接口并将接口返回json数据解析为实体类_winform解析json-CSDN博客
上面使用HttpClient调用post接口时使用的HttpContent的格式为 application/x-www-form-urlencoded
对应的代码实现
var body = new FormUrlEncodedContent(new Dictionary<string, string>{{"serverName", "zlw"},{"mineCode", this.textBox_mineCode.Text.Trim().ToString()},{"targetServer",this.textBox_targetServer.Text.Trim().ToString()},{"port", this.textBox_port.Text.Trim().ToString()},{"user", this.textBox_user.Text.Trim().ToString()},{"pass", this.textBox_pass.Text.Trim().ToString()},{"dir", this.textBox_dir.Text.Trim().ToString()},{"filePath", this.textBox_filePath.Text.Trim().ToString()},});// responsevar response = httpClient.PostAsync(url, body).Result;
如果调用接口时明确指出必须是application/json格式,则需要修改代码实现方式。
注:
博客:
https://blog.csdn.net/badao_liumang_qizhi
实现
1、以调用若依框架的登录接口为例,需要传递application/json的用户名和密码参数
这里为快速实现,所以手动构造和转义json字符串
var jsonContent = "{\"username\":\"bGVk\",\"password\":\"MTIzNDU2Nzg=\"}";
实际使用时需要使用正规的json序列化工具等方式。
然后content不再是FormUrlEncodedContent,而是StringContent
var content = new StringContent(jsonContent, Encoding.UTF8, "application/json")
然后传参时
var response = httpClient.PostAsync(url, content).Result;
2、完整示例代码
var httpClient = new HttpClient();var url = new Uri("http://127.0.0.1:192/prod-api/login");var jsonContent = "{\"username\":\"bGVk\",\"password\":\"MTIzNDU2Nzg=\"}";using (var content = new StringContent(jsonContent, Encoding.UTF8, "application/json")){var response = httpClient.PostAsync(url, content).Result;if (response.IsSuccessStatusCode){var responseContent = response.Content.ReadAsStringAsync();var data = responseContent.Result;Console.WriteLine(data);JavaScriptSerializer js = new JavaScriptSerializer();//实例化一个能够序列化数据的类LoginResult result = js.Deserialize<LoginResult>(data);Console.WriteLine(result.token);}}
后面的部分则是读取返回值并序列化为实体类
其中实体类LoginResult为
class LoginResult{/// <summary>/// 操作成功/// </summary>public string msg { get; set; }/// <summary>////// </summary>public int code { get; set; }/// <summary>////// </summary>public string token { get; set; }}
测试结果