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代码如下:

<?php
$url = "http://www.mytest.com/curl/login.php";  //请求的url地址
$user = "zkg111"; //用户名
$pass = "123456";
$postdata = "user_name=".$user."&password=".$pass;  //请求的数据，以 & 符号分割
$curl = curl_init(); //开启curl
curl_setopt($curl, CURLOPT_URL, $url); //设置请求地址
curl_setopt($curl, CURLOPT_RETURNTRANSFER, 1);  //是否输出 1 or true 是不输出 0  or false输出
curl_setopt($curl, CURLOPT_POST, 1); //是否使用post方法请求
curl_setopt($curl, CURLOPT_POSTFIELDS, $postdata);  //post数据

 
echo $data = curl_exec($curl); //执行curl操作
curl_close($curl);
?>

代码如下:

<?php
$url = "http://bbs.lampbrother.net/login.php";
$urls = "http://bbs.lampbrother.net";
$lgt = 0;
$user = "XXXX";
$pass = "XXXX";
$question = 0;
$hideid = 1;
 $cookie_file    =    tempnam('./temp','cookie');
 $postdata = "forward=&jumpurl=".$urls."&step=2&lgt=".$lgt."&pwuser=".$user."&pwpwd=".$pass."&question=".$question."&answer=&hideid=".$hideid;
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $url);
curl_setopt($ch, CURLOPT_HEADER, 0);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($ch, CURLOPT_POST, 1);
curl_setopt($ch, CURLOPT_POSTFIELDS, $postdata);
curl_setopt($ch, CURLOPT_COOKIEJAR, $cookie_file);
curl_setopt($ch, CURLOPT_FOLLOWLOCATION, true);
 $data = curl_exec($ch);
curl_close($ch);
 //echo $data;
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, 'http://bbs.lampbrother.net/');
curl_setopt($ch, CURLOPT_HEADER, 0);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 0);
curl_setopt($ch, CURLOPT_COOKIEFILE, $cookie_file);
curl_exec($ch);
curl_close($ch);
?>

代码如下:

<?php
//200 正常状态
header('HTTP/1.1 200 OK');
// 301 永久重定向，记得在后面要加重定向地址 Location:$url
header('HTTP/1.1 301 Moved Permanently');
// 重定向，其实就是302 暂时重定向
header('Location: http://www.maiyoule.com/');
// 设置页面304 没有修改
header('HTTP/1.1 304 Not Modified');
// 显示登录框，
header('HTTP/1.1 401 Unauthorized');
header('WWW-Authenticate: Basic realm="登录信息"');
echo '显示的信息！';
// 403 禁止访问
header('HTTP/1.1 403 Forbidden');
// 404 错误
header('HTTP/1.1 404 Not Found');
// 500 服务器错误
header('HTTP/1.1 500 Internal Server Error');
// 3秒后重定向指定地址(也就是刷新到新页面与 <meta http-equiv="refresh" content="10;http://www./ /> 相同)
header('Refresh: 3; url=http://www./');
echo '10后跳转到http://www.';
// 重写 X-Powered-By 值
header('X-Powered-By: PHP/5.3.0');
header('X-Powered-By: Brain/0.6b');
//设置上下文语言
header('Content-language: en');
 // 设置页面最后修改时间（多用于防缓存）
$time = time() - 60; //建议使用filetime函数来设置页面缓存时间
header('Last-Modified: '.gmdate('D, d M Y H:i:s', $time).' GMT');
// 设置内容长度
header('Content-Length: 39344');
// 设置头文件类型，可以用于流文件或者文件下载
header('Content-Type: application/octet-stream');
header('Content-Disposition: attachment; filename="example.zip"');
header('Content-Transfer-Encoding: binary');
readfile('example.zip');//读取文件到客户端

//禁用页面缓存
header('Cache-Control: no-cache, no-store, max-age=0, must-revalidate');
header('Expires: Mon, 26 Jul 1997 05:00:00 GMT');
header('Pragma: no-cache');

//设置页面头信息
header('Content-Type: text/html; charset=iso-8859-1');
header('Content-Type: text/html; charset=utf-8');
header('Content-Type: text/plain');
header('Content-Type: image/jpeg');
header('Content-Type: application/zip');
header('Content-Type: application/pdf');
header('Content-Type: audio/mpeg');
header('Content-Type: application/x-shockwave-flash');
//.... 至于Content-Type 的值 可以去查查 w3c 的文档库，那里很丰富
?>

代码如下:

    protected void btnPrint_Click(object sender, EventArgs e)
    {
        string strPath = "MFOut" + DateTime.Now.ToString("yyyymmddhhmmssfff") + ".xls";
        DataGrid dg = new DataGrid();
        dg.DataSource = dtMain;
        dg.DataBind();
        Response.Clear();
        Response.AddHeader("content-disposition", "attachment;filename=" + strPath + "");
        Response.Charset = "gb2312";
        Response.ContentEncoding = System.Text.Encoding.UTF8;//不设置会有乱码
        Response.ContentType = "application/vnd.xls";
        System.IO.StringWriter stringWrite = new System.IO.StringWriter();
        System.Web.UI.HtmlTextWriter htmlWrite = new HtmlTextWriter(stringWrite);
        dg.RenderControl(htmlWrite);
        Response.Write(stringWrite.ToString());
        Response.End();
    }
    public override void VerifyRenderingInServerForm(Control control)
    {
        //这个方法不能删除掉 导出时要用到，不然会报错：
        //类型“GridView”的控件“ctl00_ContentPlaceHolder1_GridView1”必须放在具有 runat=server 的窗体标记内
    }