Asp.net文件上传（转载）

来源：互联网发布：轴承数据库编辑：程序博客网时间：2024/05/22 07:42
<%@ page contentType="text/html; charset=GBK" %><html><meta http-equiv="pragma" content="no-cache">  <meta http-equiv="cache-control" content="no-cache">  <meta http-equiv="expires" content="0"> <HEAD>  <TITLE> New Document </TITLE> </HEAD><script language="javascript" src="common/jquery/jquery.js"></script><script language="javascript" src="common/jquery/ajaxfileupload.js"></script><script>    function uploadImage(obj) {        var tmpFilePath = obj.value;                        if(validateImage(obj)) {            $.ajaxFileUpload({                url:'http://127.0.0.1:8090/publicInfoUploadImgTopic',       //需要链接到服务器地址                secureuri:false,                fileElementId:'newsImgFile',                            //文件选择框的id属性                dataType: 'json',                                   //服务器返回的格式，可以是json                success: function (data, textStatus) {               //相当于java中try语句块的用法                    //[{isSuccess:true|false,serverPath:XXXXX}]                    alert("上传图片成功！");                    //$('#imgPath').val(data[0].serverPath);                    //alert($('#imgPath').val());                },                error: function (data, status, e) {           //相当于java中catch语句块的用法                    $('#imgPath').val('');                }            });        }    }            //校验图片格式及大小 Add Date 2012-6-14 LIUYI    function validateImage(obj) {        var file = obj;        var tmpFileValue = file.value;                //校验图片格式        if(/^.*?\.(gif|png|jpg|jpeg|bmp)$/.test(tmpFileValue.toLowerCase())){            return true;        } else {            alert("只能上传jpg、jpeg、png、bmp或gif格式的图片！");            return false;        }                //校验图片大小,这段代码需调整浏览器安全级别(调到底级)和添加可信站点(将服务器站点添加到可信站点中)        //var imgSize = 1024 * 100; //最大100K        //var img = new Image();        if(file.value != ""){                    //    img.onreadystatechange = function(){        //        if(img.readyState == "complete"){        //            if(img.fileSize <=0 || img.fileSize > imgSize){        //                alert("当前文件大小" + img.fileSize / 1024 + "KB, 超出最大限制 " + imgSize / 1024 + "KB");        //                return false;        //            }else{        //                alert("OK");        //                return true;        //            }        //        }        //    }                    //    img.src = file.value;            //return true;        }else{            alert("请选择上传的文件!");            return false;        }    }        function test(obj){        alert($(obj).val());        alert(obj.value);        alert(document.getElementByIdx_x("imgFile").value);    }</script><body>        <table bgcolor="" align="center"><tr><td>            <tr>            <td colspan="2" align="right">                  <input type="hidden" id="imgPath" name="imgPath" />                  <input type="file" class="abc" style="width:450px;" onchange="uploadImage(this)" id="newsImgFile" name="imgFile" />            </td>            </tr>        </table></body></html>