标签:
1、js代码
// Ajax 文件下载
//当不用传参时,可以将data去掉
jQuery.download = function(url, data, method){ // 获得url和data
if( url && data ){
// data 是 string 或者 array/object
data = typeof data == ‘string‘ ? data : jQuery.param(data); // 把参数组装成 form的 input
var inputs = ‘‘;
jQuery.each(data.split(‘&‘), function(){
var pair = this.split(‘=‘);
inputs+=‘<input type="hidden" name="‘+ pair[0] +‘" value="‘+ pair[1] +‘" />‘;
}); // request发送请求
jQuery(‘<form action="‘+ url +‘" method="‘+ (method||‘post‘) +‘">‘+inputs+‘</form>‘).appendTo(‘body‘).submit().remove();
};
};
调用实例:
$.download(‘ExcelDownload.do‘,‘find=commoncode‘,‘post‘ );
2、php代码
/**
* 下载文件
* @param string $file
* 被下载文件的路径
* @param string $name
* 用户看到的文件名
*/
public function download(){
$file = "D:\\cloudwafSites.txt";
$name = ‘test‘;
$fileName = $name ? $name : pathinfo($file,PATHINFO_FILENAME);
$filePath = realpath($file);
$fp = fopen($filePath,‘rb‘);
if(!$filePath || !$fp){
header(‘HTTP/1.1 404 Not Found‘);
echo "Error: 404 Not Found.(server file path error)";
exit;
}
$fileName = $fileName .‘.‘. pathinfo($filePath,PATHINFO_EXTENSION);
$encoded_filename = urlencode($fileName);
$encoded_filename = str_replace("+", "%20", $encoded_filename);
header(‘HTTP/1.1 200 OK‘);
header( "Pragma: public" );
header( "Expires: 0" );
header("Content-type: application/octet-stream");
header("Content-Length: ".filesize($filePath));
header("Accept-Ranges: bytes");
header("Accept-Length: ".filesize($filePath));
$ua = $_SERVER["HTTP_USER_AGENT"];
if (preg_match("/MSIE/", $ua)) {
header(‘Content-Disposition: attachment; filename="‘ . $encoded_filename . ‘"‘);
} else if (preg_match("/Firefox/", $ua)) {
header(‘Content-Disposition: attachment; filename*="utf8\‘\‘‘ . $fileName . ‘"‘);
} else {
header(‘Content-Disposition: attachment; filename="‘ . $fileName . ‘"‘);
}
//ob_end_clean(); //<--有些情况可能需要调用此函数
// 输出文件内容
fpassthru($fp);
exit;
}
动态提交使用jQuery 完成ajax 文件下载----后端php
标签:
原文地址:http://www.cnblogs.com/shijiaoyun/p/5772726.html