利用Ext.ux.UploadDialog实现文件上传

var dialog = new Ext.ux.UploadDialog.Dialog({      title:'本地图片上传',      url: '<%=basePath%>shop/link/link_edit!uploadImage.action',      post_var_name:'imageUpload', //参数名    reset_on_hide: false,      modal: true,    permitted_extensions:['JPG','jpg','JPEG','jpeg','GIF','gif','PNG','png'],  //上传类型限制    allow_close_on_upload: true,  //窗口关闭后继续上传    upload_autostart: true //是否自动上传  }); dialog.show();//上传成功后回调函数dialog.on('uploadsuccess',function(dialog, filename, resp_data, record){//上传成功后，返回的路径,设置在表单imageUrl文本框中            Ext.getCmp('imageUrl').setValue(resp_data.data.msg);//关闭窗口并显示提示信息            dialog.hide();            Ext.Msg.alert("系统提示", "文件上传成功！");});