Question

我在c＃application

中使用了以下代码

string verification_url = @"http://site.com/posttest.php?";
string verification_data = "test=524001A";
string result = string.Empty;
result = Post(verification_url, verification_data);

public string Post(string url, string data)
{
    string result = "";
    try
    {
        byte[] buffer = Encoding.GetEncoding(1252).GetBytes(data);
        HttpWebRequest WebReq = (HttpWebRequest)WebRequest.Create(@url);
        WebReq.Method = "POST";

        WebReq.ContentType = "application/x-www-form-urlencoded";              
        WebReq.ContentLength = buffer.Length;
        Stream PostData = WebReq.GetRequestStream();

        PostData.Write(buffer, 0, buffer.Length);
        PostData.Close();

        HttpWebResponse WebResp = (HttpWebResponse)WebReq.GetResponse();
        Stream Answer = WebResp.GetResponseStream();
        StreamReader _Answer = new StreamReader(Answer);
        result = _Answer.ReadToEnd();
    }
    catch (Exception ex)
    {
        MessageBox.Show(ex.Message);
    }
    if (result.Length < 0)
    result = "";

    return result;

}

服务器端PHP代码

<?php   
$test=$_REQUEST['test'];
echo $test;
?>

post方法总是返回空值

请帮帮我

Answer 1

尝试

<?php
print_r($_REQUEST);
?>

显示原始REQUEST变量。我不知道你在c＃代码中设置测试的位置。

Answer 2

您需要将验证数据作为参数添加到请求网址，例如

string verification_data = "test=524001A";
string verification_url = @"http://site.com/posttest.php?" + verification_data;

这样您的实际请求网址就是：

http://site.com/posttest.php?test=524001A

Answer 3

您可以尝试不关闭RequestStream吗？请尝试删除以下行：

PostData.Close();

PS：你有必要的.net权限吗？

Answer 4

我更改了以下内容

string verification_url = @"http://site.com/posttest.php?";

到

string verification_url = @"http://www.site.com/posttest.php?";

它现在可以正常使用

在C＃中将数据发布到网页失败

4 个答案: