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jquery.form上传文件

2024-08-29 13:09:09   221人阅读

建立test文件夹

PHP代码：

<?php
//var_dump($_FILES[‘file‘]);exit;

if(isset($_GET[‘option‘]) && $_GET[‘option‘]==‘delete‘){
	@file_put_contents(dirname(__FILE__)."/------------0.txt", $_GET[‘path‘]."\r\n",FILE_APPEND);
	unlink($_GET[‘path‘]);
	$rs[] = array(
		‘success‘=>true,
		‘info‘=>‘ok‘
	);
	if(file_exists($_GET[‘path‘])){
		$rs[][‘success‘]=false;
		$rs[][‘info‘]=‘未删除‘;
	}
	die(json_encode($rs));
}

if ((($_FILES["file"]["type"] == "image/gif")
|| ($_FILES["file"]["type"] == "image/jpeg")
|| ($_FILES["file"]["type"] == "image/png")
|| ($_FILES["file"]["type"] == "image/pjpeg"))
&& ($_FILES["file"]["size"] < (1024*1024)))
{
	if ($_FILES["file"]["error"] > 0)
	{
		echo "Return Code: " . $_FILES["file"]["error"] . "<br />";
	}
	else
	{
		if (file_exists("test/" . $_FILES["file"]["name"]))
		{
			$fn = $_FILES["file"]["name"];
		}
		else
		{
			$imgurl = substr($_FILES["file"]["name"], strpos($_FILES["file"]["name"], ‘.‘));
			$imgurl = date("YmdHis",time()).$imgurl;
			move_uploaded_file($_FILES["file"]["tmp_name"],"test/" . $imgurl);
			$fn = "test/" . $imgurl;
		}
	}
	$return_str[] = array(
		‘guid‘=>date(‘His‘,time()),
		‘path‘=>‘test/‘,
		‘fileName‘=>$fn,
		‘success‘=>true
	);
}
else
{
	
	$return_str[] = array(
		‘guid‘=>date(‘His‘,time()),
		‘path‘=>‘test/‘,
		‘fileName‘=>$_FILES["file"]["name"],
		‘success‘=>false,
		‘error‘=>$_FILES["file"]["error"]
	);
}
	echo json_encode($return_str);	
?>

　　

 

HTML代码：

技术分享 
<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
    <meta http-equiv="Content-Type" content="multipart/form-data; charset=utf-8" />
    <title>文件上传</title>
    <style type="text/css">
        .btn {
            position: relative;
            background-color: blue;
            width: 80px;
            text-align: center;
            font-size: 12px;
            color: white;
            line-height: 30px;
            height: 30px;
            border-radius: 4px;
        }
            .btn:hover {
                cursor: pointer;
            }
            .btn input {
                opacity: 0;
                filter: alpha(opacity=0);
                position: absolute;
                top: 0px;
                left: 0px;
                line-height: 30px;
                height: 30px;
                width: 80px;
            }
        #fileLsit li span {
            margin-left: 10px;
            color: red;
        }
        #fileLsit {
            font-size: 12px;
            list-style-type: none;
        }
    </style>
</head>
<body>
    <div class="btn">
    
        <span>添加附件</span>
        <!--这里注意：file 标签必须具有name属性，由于没有加name属性，文件上传不到服务到哪-->
        <input type="file" id="fileName" name="file" />
    </div>
    <ul id="fileLsit" style="border:1px solid red;">
    </ul>
    <!--引入jquery类库-->
    <script type="text/javascript" src="js/jquery.js"></script>
    <!--引入jquery.form插件-->
    <script type="text/javascript" src="js/jquery.form.js"></script>
    <script type="text/javascript">
        jQuery(function () {
            var option =
                {
                    type: ‘post‘,
                    dataType: ‘json‘, //数据格式为json
                    resetForm: true,
                    beforeSubmit: showRequest,//提交前事件
                    uploadProgress: uploadProgress,//正在提交的时间
                    success: showResponse//上传完毕的事件
                }
            jQuery(‘#fileName‘).wrap(
                ‘<form method="post" action="test.php" id="myForm2"  enctype="multipart/form-data"></form>‘);
            jQuery(‘#fileName‘).change(function () {
                $(‘#myForm2‘).ajaxSubmit(option);
            });
        });
        //删除文件
        var deleteFile = function (path, guid) {
            console.log(path+‘/‘+guid);
            jQuery.getJSON(‘test.php?option=delete‘, { path: path }, function (reslut) {
                console.log(path+‘/‘+guid+‘‘+reslut[0].info);
                if (reslut[0].success) {//删除成功
                    jQuery(‘#‘ + guid).remove();
                    console.log(‘删除成功‘);
                } else {//删除失败
                    alert(reslut[0].info);
                }
            });
            console.log(‘end‘);
        }
        //上传中
        var uploadProgress = function (event, position, total, percentComplete) {
            jQuery(‘.btn span‘).text(‘上传中...‘);
        }
        //开始提交
        function showRequest(formData, jqForm, options) {
            jQuery(‘.btn span‘).text(‘开始上传..‘);
            var queryString = $.param(formData);
        }
        //上传完成
        var showResponse = function (responseText, statusText, xhr, $form) {
            console.log(responseText);
            if (responseText[0].success) {//成功之后返回文件地址、文件名称等信息 拼接呈现到html里面。
                var str = ‘<li id="‘ + responseText[0].guid + ‘"><a href="http://www.mamicode.com/‘ + responseText[0].fileName + ‘" target="_blank">‘ + responseText[0].fileName + ‘</a><span onclick="deleteFile(\‘‘ + responseText[0].fileName + ‘\‘,\‘‘ + responseText[0].guid + ‘\‘)"  >删除</span></li>‘;
                jQuery(‘#fileLsit‘).append(str);
            }
            jQuery(‘.btn span‘).text(‘上传完成‘);
            jQuery(‘.btn span‘).text(‘添加附件‘);
        }
    </script>
</body>
</html>
View Code

 

jquery.form上传文件


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