Question

c#用winform调用webservice模拟网页查询,获取的数据为空

RegexData rd = new RegexData();
HttpClient hc = new HttpClient();
public string getinfo(string cph,string fdjh,string yzm)
{
hc.Url = "http://www.tzga.gov.cn:6080/wscgs/vio.do?act=veh_vio_query";
hc.DefaultEncoding = System.Text.Encoding.Default;
hc.Verb = HttpVerb.POST;
hc.PostingData.Add("hphm", cph);
hc.PostingData.Add("hpzl", "02");//汽车类型
hc.PostingData.Add("fzjg", "浙");//车牌属地
hc.PostingData.Add("clsbdh", fdjh);//发动机号
hc.PostingData.Add("yzm", yzm);
string a = hc.GetString();
return a;
}
winform的调用
private void Form1_Load(object sender, EventArgs e)
{
pictureBox1.Image = LoadImg("http://www.tzga.gov.cn:6080/wscgs/include/captcha_js.jsp");
}
调用

ServiceReference1.WebService1SoapClient a = new ServiceReference1.WebService1SoapClient();
content.Text = a.getinfo(cph.Text, fdjh.Text, yzm.Text);

若以下回答无法解决问题，邀请你更新回答

Answer 1

不如Post了