如何在一个Action中以post方式向某个外部地址提交数据？

Question

string url = "ab.asp";
WebRequest req = WebRequest.Create( uri );
req.Method = "POST";byte[] postData = System.Text.Encoding.UTF8.GetBytes( "a=avalue&b=bvalue");req.ContentLength = postData.Length;
Stream postStream = req.GetRequestStream();
postStream.Write(postData, 0, postData.Length);
postStream.Close();WebResponse res = req.GetResponse();StreamReader reader = new StreamReader( res.GetResponseStream(),System.Text.Encoding.UTF8 );

string html = reader.ReadToEnd();reader.Close();
res.Close();你可以将UTF8换成你需要的编码方式
记得加上
using System.Net;
using System.IO;
using System.Text;

Answer 1

晕，不好意思，忘了上边的代码是C＃的了，Java的和这个类似。你自己研究一下吧！/**
* 将消息POST给对方url
* @param destURL 目的地址
* @param paramStr 传递的参数
*/
private int businessMTtoWapdm(String destURL,String paramStr) {
int Result = 0;
HttpURLConnection httpConn = null;
PrintWriter out = null;
BufferedReader reader = null;
try {
//与对方建立一个连接
URL url = new URL(destURL);
//打开连接
httpConn = (HttpURLConnection) url.openConnection();
httpConn.setRequestMethod("POST");
String userName = "";
String passWord = "";
String userPassword = userName + ":" + passWord;
userPassword = new BASE64Encoder().encode(userPassword.getBytes());
//设置身份验证
httpConn.setRequestProperty("Authorization", "Basic " + userPassword);httpConn.setRequestProperty("content-type",
"application/x-www-form-urlencoded");
httpConn.setDoOutput(true);
httpConn.setDoInput(true);
out = new PrintWriter(httpConn.getOutputStream());
out.print(paramStr);
out.flush();
httpConn.connect();
reader = new BufferedReader(new InputStreamReader(httpConn.
getInputStream()));StringBuffer buf = new StringBuffer();
String line;
while ( (line = reader.readLine()) != null) {
buf.append(line);
}
ByteArrayInputStream bis = new ByteArrayInputStream(buf.toString().
getBytes());
//////////////////
}
catch (Exception ex) {
Tools.error(ex);
}
finally {
Tools.closeBufferedReader(reader);
Tools.closePrintWriter(out);
Tools.closeHttpURLConnection(httpConn);
}
return Result;
}