zoukankan      html  css  js  c++  java
  • Sencha Toucha 2.1 文件上传

     javascript代码:

             Ext.onReady(function() {
                    Ext.create('Ext.form.Panel',
                    {
                    title: 'Upload a Photo',
                     400,
                    bodyPadding: 10,
                    frame: true,
                    renderTo: "div1",
                    items: [{
                        xtype: 'filefield',
                        name: 'photo',
                        fieldLabel: 'Photo',
                        labelWidth: 50,
                        msgTarget: 'side',
                        allowBlank: false,
                        anchor: '100%',
                        buttonText: 'Select Photo...'}],
                        buttons: [{ text: 'Upload',
                            handler: function() {
                                var form = this.up('form').getForm();
                                if (form.isValid()) {
                                    form.submit({ url: 'RemoteFileUpload.aspx',
                                        waitMsg: 'Uploading your photo...',
                                        success: function(fp, o) {
                                            Ext.Msg.alert('Success', 'Your photo "' + o.result.file + '" has been uploaded.');
                                        }
                                    });
                                }
                            }
                    }]
                });
            });

    后台代码:

         protected void Page_Load(object sender, EventArgs e)
            {
                Response.Clear();
                if (this.SaveFiles())
                {
                    Response.Write("{success:true,msg:'File was successfully uploaded.'}");
                }
                else
                {
                    Response.Write("{success:true,msg:'Possible file upload attack!'}");
                }
                Response.End();
            }
    
            public Boolean SaveFiles()
            {
                ///遍历File表单元素      
                HttpFileCollection files = HttpContext.Current.Request.Files;
                try
                {
                    for (int iFile = 0; iFile < files.Count; iFile++)
                    {          
                         ///检查文件扩展名字          
                            HttpPostedFile postedFile = files[iFile];
                        string fileName, fileExtension;
                        fileName = System.IO.Path.GetFileName(postedFile.FileName);
                        if (fileName != "")
                        {
                            ///注意:可能要修改你的文件夹的匿名写入权限。           
                            postedFile.SaveAs(System.Web.HttpContext.Current.Request.MapPath("upload_files/") + fileName);
                        }
                    } 
                    return true;
                }
                catch (System.Exception Ex)
                { 
                    return false; 
                }
            }


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  • 原文地址:https://www.cnblogs.com/fyq891014/p/3294744.html
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