ThinkPHP结合AjaxFileUploader实现无刷新文件上传的方法

本文实例讲述了thinkphp结合ajaxfileuploader实现无刷新文件上传的方法。分享给大家供大家参考。具体实现方法分析如下：

首先，ajaxfileuploader插件是一个基于jquery的插件，我们可以使用ajaxfileuploader插件来实现文件异步上传功能了，使用这款插件上传文件不要担心兼容性的问题，它的兼容性可以说兼容所有主流浏览器，下面来给大家介绍一个ajaxfileuploader+thinkphp实现文件上传的实例。

thinkphp框架下用ajaxfileuploader插件实现ajax文件上传，支持多种文件格式，页面无刷新上传。

在lib/action/目录下创建upaction.class.php文件，代码如下：

<?php
class upaction extends baseaction{
public function index(){
    $this->display();
}
 
/*
*@文件上传
*@author    fineyi
*@date        2013-01-23
*/
public function uploadfile(){
    $error = "";
    $msg = "";
    $fileelementname = 'filetoupload';
    if(!empty($_files[$fileelementname]['error'])){
        switch($_files[$fileelementname]['error']){
            case '1':
                $error = 'the uploaded file exceeds the upload_max_filesize directive in php.ini';
                break;
            case '2':
                $error = 'the uploaded file exceeds the max_file_size directive that was specified in the html form';
                break;
            case '3':
                $error = 'the uploaded file was only partially uploaded';
                break;
            case '4':
                $error = 'no file was uploaded.';
                break;
 
            case '6':
                $error = 'missing a temporary folder';
                break;
            case '7':
                $error = 'failed to write file to disk';
                break;
            case '8':
                $error = 'file upload stopped by extension';
                break;
            case '999':
            default:
                $error = 'no error code avaiable';
        }
    }elseif(empty($_files['filetoupload']['tmp_name']) || $_files['filetoupload']['tmp_name'] == 'none'){
        $error = 'no file was uploaded..';
    }else{
            $re = $this->up();
            if(!$re){
                $error = 'up file fail';
            }
            $msg = $re['savename'];    //文件名
            $path = '/upload/bizcoop/'.$msg;    //文件路径
            $size = $re['size'];    //文件大小
    }       
    echo json_encode(array('error'=>$error,'msg'=>$msg,'path'=>$path,'size'=>$size));exit;
}
 
private function up(){
    import('@.org.uploadfile');//将上传类uploadfile.class.php拷到lib/org文件夹下
    $upload=new uploadfile();
 
    $upload->maxsize='-1';//默认为-1，不限制上传大小
    $upload->savepath= ictspace_dist_root_path.'/www/upload/bizcoop/';//保存路径
    $upload->saverule=uniqid;//上传文件的文件名保存规则
    $upload->uploadreplace=true;//如果存在同名文件是否进行覆盖
    $upload->allowexts=array('jpg','jpeg','png','gif');//准许上传的文件类型
    if($upload->upload()){
        $info=$upload->getuploadfileinfo();
        return $info[0];
    }else{
        return false;
        exit;
    }
}
}
?>

在/tpl/default/up/目录下创建index.tpl文件，代码如下：

<div id="content">
<h1>ajax file upload demo</h1>
<img id="loading" style="display: none;" alt="" src="__app____public__/style/img/loading.gif" />
 
<form action="" enctype="multipart/form-data" method="post" name="form">
<table class="tableform" cellspacing="0" cellpadding="0">
<thead>
<tr>
<th></th>
</tr>
</thead>
<tbody>
<tr>
<td><input class="input" id="filetoupload" type="file" name="filetoupload" size="45" /></td>
</tr>
<tr>
<td><button class="button" id="buttonupload" onclick="return ajaxfileupload();">upload</button></td>
</tr>
</tbody>
<tbody>
<tr>
<td><span>已上传的附件:</span></td>
</tr>
</tbody>
<tfoot></tfoot>
</table>
</form></div>

在/lib/org/目录下放入thinkphp文件上传类就可以了，有一些插件我们需要到官方下载。

希望本文所述对大家的php程序设计有所帮助。