嗨,我想从C#中的桌面应用程序调用Web应用程序的Web服务,但是我尝试了此操作,但它给内部服务器错误500提供了错误。Web服务的URL太长,因此我需要通过POST方法传递它。 我的代码有什么不对?请提出任何建议。
private void button1_Click(object sender, EventArgs e)
{
//HttpWebRequest request = (HttpWebRequest)WebRequest.Create("URL OF Webservice");
//WebResponse response = request.GetResponse();
//response.Close();
using (var wb = new WebClient())
{
var data = new NameValueCollection();
data["authU"] = "value";
data["authP"] = "value";
data["cmp"] = "value";
data["sales_id"] = "value";
data["Login"] = "value";
data["total_amount"] = "value";
data["total_discount"] = "value";
data["net_amount"] = "value";
data["change"] = "value";
data["tax"] = "value";
data["ip"] = "value";
data["Tran_Type"] = "value";
data["mac_id"] = "value";
data["ref_id"] = "value";
data["venue_id"] = "value";
data["store_name"] = "value";
data["actual_total_amount"] = "value";
data["temp_sale_id"] = "value";
data["is_return"] = "value";
data["created_date"] = "2018-06-14 14:26:09";
data["modify_date"] = "2018-06-14 14:26:09";
data["mode"] = "value";
data["value"] = "value";
data["machine_id"] = "value";
data["location_id"] = "value";
data["input_amount"] = "value";
data["sale_type"] = "value";
data["is_table"] = "value";
data["Payment_Date"] = "2018-06-14 14:26:09";
data["Payment_Amount"] = "value";
data["Table_name"] = "value";
data["is_close"] = "value";
data["values"] = "value";
var response = wb.UploadValues("http://localhost:53653/POS_WebService.asmx/Sales_Master_Full", "POST", data);
string responseInString = Encoding.UTF8.GetString(response);
答案 0 :(得分:0)
将数据发布到Web服务不是与之交互的标准方法。在这种情况下,您指向WSDL的副本:
http://localhost:53653/POS_WebService.asmx?WSDL
,然后让VS创建一个用于调用函数的代理包装器。
有关如何添加参考的信息,请参见https://stackoverflow.com/a/12710348/656243。从那里开始,假设您将引用添加为WebService1,则只需将该函数作为Webservice的成员进行调用即可:
WebService1 svc = new Webservice1;
var data = svc.Sales_Master_Full();
就像正常的C#函数一样。
答案 1 :(得分:0)
您需要如下设置HTTP Content type标头:
using (var wb = new WebClient())
{
wb.Headers[HttpRequestHeader.ContentType] = "application/x-www-form-urlencoded";
var data = new NameValueCollection();
// ...
var response = wb.UploadValues("http://localhost:53653/POS_WebService.asmx/Sales_Master_Full", "POST", data);
// ...
}