我知道我的问题看起来像是重复的问题,但是找不到适合我问题的有用解决方案。
所以,我试图从货船数据提供网站Link(这是韩国网站。右侧的黑色按钮是搜索按钮)中删除数据]
但是为了从中获取数据,必须设置一些单选按钮然后点击搜索。
我以为我可以通过FormUrlEncodedContent传递参数值,然后简单地使用PostAsync,但是以某种方式我无法使其传递。
到目前为止是我的代码
using (var client = new HttpClient())
{
client.DefaultRequestHeaders.TryAddWithoutValidation("User-Agent", "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/54.0.2840.99 Safari/537.36");
client.DefaultRequestHeaders.TryAddWithoutValidation("Content-Type", "application/x-www-form-urlencoded");
var doc = new HtmlAgilityPack.HtmlDocument();
var content = new FormUrlEncodedContent(structInfo.ScriptValues);
var response = await client.PostAsync(structInfo.PageURL, content);
var responseString = await response.Content.ReadAsStringAsync();
Console.WriteLine(responseString);
}
using (WebClient client = new WebClient())
{
var reqparm = new System.Collections.Specialized.NameValueCollection();
reqparm.Add("v_time", "month");
reqparm.Add("ROCD", "ALL");
reqparm.Add("ORDER", "item2");
reqparm.Add("v_gu", "S");
byte[] responsebytes = client.UploadValues("http://info.bptc.co.kr:9084/content/sw/frame/berth_status_text_frame_sw_kr.jsp", "POST", reqparm);
string responsebody = Encoding.UTF8.GetString(responsebytes);
Console.WriteLine(responsebody);
}
我在StructInfo类中输入的值
PageURL = "http://info.bptc.co.kr:9084/content/sw/frame/berth_status_text_frame_sw_kr.jsp",
ScriptValues = new Dictionary<string, string>
{
{"v_time", "month"},
{"ROCD", "ALL"},
{"ORDER", "item2"},
{"v_gu", "S"}
},
到目前为止,我尝试过的是HttpClient,WebClient,WebBrowser,但我没有运气。
但是很奇怪的是,当我尝试使用Burp Suite发送帖子时,数据的输出就像我想要的一样。
我过去四个小时一直在寻找解决方案,没有任何运气。
你们介意帮我吗?
谢谢
邮递员为C#生成的代码-RestSharp
var client = new RestClient("http://info.bptc.co.kr:9084/Berth_status_text_servlet_sw_kr");
client.Timeout = -1;
var request = new RestRequest(Method.POST);
request.AddHeader("Content-Type", "application/x-www-form-urlencoded");
request.AddParameter("v_time", "3days");
request.AddParameter("ROCD", "ALL");
request.AddParameter("ORDER", "item2");
request.AddParameter("v_gu", "S");
IRestResponse response = client.Execute(request);
Console.WriteLine(response.Content);
HttpClient版本
using var client = new HttpClient();
var content = new FormUrlEncodedContent(new[]
{
new KeyValuePair<string, string>("v_time", "3days"),
new KeyValuePair<string, string>("ROCD", "ALL"),
new KeyValuePair<string, string>("ORDER", "item2"),
new KeyValuePair<string, string>("v_gu", "S"),
});
string url = "http://info.bptc.co.kr:9084/Berth_status_text_servlet_sw_kr";
var response = await client.PostAsync(url, content);
var bytes = await response.Content.ReadAsByteArrayAsync();
string responseString = Encoding.UTF8.GetString(bytes);
Console.WriteLine(responseString);
问题
如果我们谈论HttpClient版本,假设您使用的是.net core。
该异常在ReadAsStringAsync调用上引发。更具体地讲如下:https://github.com/microsoft/referencesource/blob/aaca53b025f41ab638466b1efe569df314f689ea/System/net/System/Net/Http/HttpContent.cs#L95
响应具有ContentType:text / html; charset = euc-kr。
并且问题是.net核心不支持现成的韩文字符集。我的解决方法是改用ReadAsByteArrayAsync,然后再使用受支持的UTF8编码器。它虽然拧韩文字符。更好的方法是引用System.Text.Encoding.CodePages包,然后使用Encoding.RegisterProvider。像这样Encoding.GetEncoding can't work in UWP app