在WinForm中发送HTTP请求的实现方法

如何在winform中请求发送http

手工发送http请求主要是调用 system.net的httpwebresponse方法

手工发送http的get请求：

string strurl = "http://localhost/play/ch1/service1.asmx/dosearch?keyword=";
strurl +=this.textbox1.text;
system.net.httpwebrequest request;
// 创建一个http请求
request = (system.net.httpwebrequest)webrequest.create(strurl);
//request.method="get";
system.net.httpwebresponse response;
response = (system.net.httpwebresponse)request.getresponse();
system.io.stream s;
s = response.getresponsestream();
xmltextreader reader = new xmltextreader(s);
reader.movetocontent();
string strvalue = reader.readinnerxml();
strvalue = strvalue.replace("<","<");
strvalue = strvalue.replace(">",">");
messagebox.show(strvalue); 
reader.close();

手工发送http的post请求

string strurl = "http://localhost/play/ch1/service1.asmx/dosearch";
system.net.httpwebrequest request;

request = (system.net.httpwebrequest)webrequest.create(strurl);
//post请求方式
request.method="post";
// 内容类型
request.contenttype="application/x-www-form-urlencoded";
// 参数经过url编码
string paraurlcoded = system.web.httputility.urlencode("keyword");
paraurlcoded += "=" + system.web.httputility.urlencode(this.textbox1.text);
byte[] payload;
//将url编码后的字符串转化为字节
payload = system.text.encoding.utf8.getbytes(paraurlcoded);
//设置请求的 contentlength 
request.contentlength = payload.length;
//获得请 求流
stream writer = request.getrequeststream();
//将请求参数写入流
writer.write(payload,0,payload.length);
// 关闭请求流
writer.close();
system.net.httpwebresponse response;
// 获得响应流
response = (system.net.httpwebresponse)request.getresponse();
system.io.stream s;
s = response.getresponsestream();
xmltextreader reader = new xmltextreader(s);
reader.movetocontent();
string strvalue = reader.readinnerxml();
strvalue = strvalue.replace("<","<");
strvalue = strvalue.replace(">",">");
messagebox.show(strvalue); 
reader.close();

以上这篇在winform中发送http请求的实现方法就是小编分享给大家的全部内容了，希望能给大家一个参考，也希望大家多多支持。