如何通过HTTP请求到Web服务 [英] How to pass HTTP Request to web service
本文介绍了如何通过HTTP请求到Web服务的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！
问题描述
IDE：VS 2010
我有我必须使用来自HTTP请求服务（如果没有客户端项目添加服务引用）。我按照教程很多的要求，但在所有我得到错误505，同时使
System.Net.HttpWebResponse RESP =（System.Net.HttpWebResponse）req.GetResponse（）;
下面是示例code，我使用了一个
System.Net.WebRequest REQ = System.Net.WebRequest.Create（HTTP：//本地主机：8090 / MyService.asmx）;
//req.Proxy =新System.Net.WebProxy（127.0.0.1，真正的）;
//req.Htt(\"POST /_22YardzWebService.asmx/ReceiveXMLByContent HTTP / 1.1）;
//builder.Append(\"Host：本地主机）;
req.ContentType =文本/ XML;编码='UTF-8';
//req.ContentLength = 4096; //添加这些，因为我们正在做一个POST
//req.ContentType =应用/的X WWW的形式urlen codeD; req.Method =POST;
//我们需要计算我们有多少字节发送。 Post'ed伪造的表格应为name = value＆安培;
字节[]字节= Encoding.UTF8.GetBytes（参数）;
req.ContentLength = bytes.Length;
//System.IO.Stream OS = req.GetRequestStream（）;
//推它在那里 使用（流OS = req.GetRequestStream（））
{
os.Write（字节，0，bytes.Length）;
}
//os.Close（）; System.Net.HttpWebResponse RESP =（System.Net.HttpWebResponse）req.GetResponse（）;
如果（RESP == NULL）返回NULL;
就是System.IO.StreamReader SR =新就是System.IO.StreamReader（resp.GetResponseStream（））;
返回sr.ReadToEnd（）修剪（）。
code来源：的http://www.hanselman.com/blog/HTTPPOSTsAndHTTPGETsWithWebClientAndCAndFakingAPostBack.aspx
Web方法是从工作服务引用调用时，
样本Web马托：
[的WebMethod]
公共字符串测试（）
{ 返回你好;
}
解决方案
您抽样方法不返回数据。
下面是我的榜样和工作。
[WebService的空间（namespace =http://tempuri.org/）]
[WebServiceBinding（ConformsTo = WsiProfiles.BasicProfile1_1）
[System.ComponentModel.ToolboxItem（假）]
公共类服务1：System.Web.Services.WebService
{ [的WebMethod]
公共字符串的HelloWorld（）
{
返回的Hello World;
} [的WebMethod]
公共字符串HelloWorldNew（字符串数据1，字符串数据2）
{
返回的Hello World+数据1 +数据2;
}
}
控制台应用程序code。 （简单的HelloWorld）
类节目
{
静态无效的主要（字串[] args）
{
HttpWebRequest的要求=（HttpWebRequest的）WebRequest.Create（HTTP：//本地主机：60395 / Service1.asmx的/的HelloWorld）;
request.Method =POST;
VAR读卡器=新就是System.IO.StreamReader（request.GetResponse（）GetResponseStream（））;
字符串数据= reader.ReadToEnd（）;
}
}
控制台应用程序code。 （简单HelloWorldNew）
类节目
{
静态无效的主要（字串[] args）
{
字符串数据=数据1 = USER1和放大器;数据2 =用户2;
字节[]数据流= Encoding.UTF8.GetBytes（数据）;
HttpWebRequest的要求=（HttpWebRequest的）WebRequest.Create（HTTP：//本地主机：60395 / Service1.asmx的/ HelloWorldNew）;
request.Method =POST;
request.ContentType =应用/的X WWW的形式urlen codeD;
request.ContentLength = dataStream.Length;
方通流= request.GetRequestStream（）;
newStream.Write（数据流，0，dataStream.Length）;
newStream.Close（）;
VAR读卡器=新就是System.IO.StreamReader（request.GetResponse（）GetResponseStream（））;
字符串dataReturn = reader.ReadToEnd（）;
}
}
IDE: VS 2010
I have a requirement in that I have to consume service from HTTP request (Without adding service reference in client project.) I have followed lots of tutorials, but in all I am getting error 505, while making
System.Net.HttpWebResponse resp =(System.Net.HttpWebResponse) req.GetResponse();
Here is one of the sample code which I have used
System.Net.WebRequest req = System.Net.WebRequest.Create("http://localhost:8090/MyService.asmx");
//req.Proxy = new System.Net.WebProxy("127.0.0.1", true);
//req.Htt("POST /_22YardzWebService.asmx/ReceiveXMLByContent HTTP/1.1");
//builder.Append("Host: localhost");
req.ContentType = "text/xml; encoding='utf-8'";
//req.ContentLength = 4096;
//Add these, as we're doing a POST
//req.ContentType = "application/x-www-form-urlencoded";
req.Method = "POST";
//We need to count how many bytes we're sending. Post'ed Faked Forms should be name=value&
byte[] bytes = Encoding.UTF8.GetBytes(Parameters);
req.ContentLength = bytes.Length;
//System.IO.Stream os = req.GetRequestStream();
//Push it out there
using (Stream os = req.GetRequestStream())
{
os.Write(bytes, 0, bytes.Length);
}
//os.Close();
System.Net.HttpWebResponse resp =(System.Net.HttpWebResponse) req.GetResponse();
if (resp == null) return null;
System.IO.StreamReader sr = new System.IO.StreamReader(resp.GetResponseStream());
return sr.ReadToEnd().Trim();
code source :http://www.hanselman.com/blog/HTTPPOSTsAndHTTPGETsWithWebClientAndCAndFakingAPostBack.aspx
Web method is working when called from service reference,
sample web Mathod:
[WebMethod]
public string Test()
{
return "hello";
}
解决方案
Your sample method does not return data.
Here is my example and working.
[WebService(Namespace = "http://tempuri.org/")]
[WebServiceBinding(ConformsTo = WsiProfiles.BasicProfile1_1)]
[System.ComponentModel.ToolboxItem(false)]
public class Service1 : System.Web.Services.WebService
{
[WebMethod]
public string HelloWorld()
{
return "Hello World";
}
[WebMethod]
public string HelloWorldNew(string data1,string data2)
{
return "Hello World" + data1 + data2;
}
}
Console Application Code. ( Simple HelloWorld)
class Program
{
static void Main(string[] args)
{
HttpWebRequest request = (HttpWebRequest)WebRequest.Create("http://localhost:60395/Service1.asmx/HelloWorld");
request.Method = "POST";
var reader = new System.IO.StreamReader(request.GetResponse().GetResponseStream());
string data = reader.ReadToEnd();
}
}
Console Application Code. ( Simple HelloWorldNew)
class Program
{
static void Main(string[] args)
{
string data = "data1=user1&data2=user2";
byte[] dataStream = Encoding.UTF8.GetBytes(data);
HttpWebRequest request = (HttpWebRequest)WebRequest.Create("http://localhost:60395/Service1.asmx/HelloWorldNew");
request.Method = "POST";
request.ContentType = "application/x-www-form-urlencoded";
request.ContentLength = dataStream.Length;
Stream newStream = request.GetRequestStream();
newStream.Write(dataStream, 0, dataStream.Length);
newStream.Close();
var reader = new System.IO.StreamReader(request.GetResponse().GetResponseStream());
string dataReturn = reader.ReadToEnd();
}
}
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