Ext 文件上传 fileuploadfield 帮帮忙 急呀

Ext.onReady(function(){



    Ext.QuickTips.init();



    var msg = function(title, msg){

        Ext.Msg.show({

            title: title,

            msg: msg,

            minWidth: 200,

            modal: true,

            icon: Ext.Msg.INFO,

            buttons: Ext.Msg.OK

        });

    };



    var fp = new Ext.FormPanel({

        renderTo: 'fi-form',

        fileUpload: true,

        width: 500,

        frame: true,

        title: 'File Upload Form',

        autoHeight: true,

        bodyStyle: 'padding: 10px 10px 0 10px;',

        labelWidth: 50,

        defaults: {

            anchor: '95%',

            msgTarget: 'side'

        },

        items: [{

            xtype: 'textfield',

            fieldLabel: 'Name',

            name:"common.name",

            id:"fileName"

        },{

            xtype: 'fileuploadfield',

            id: 'formFile',

            emptyText: 'Select an image',

            fieldLabel: 'Photo',

            name: 'common.fileStr',

            fileUpload : true,

            buttonText: '',

            buttonCfg: {

                iconCls: 'upload-icon'

            }

        }],

        buttons: [{

            text: 'Save',

            handler: function(){

                var v = Ext.getCmp('formFile').getValue();

                alert(v);

                if(fp.getForm().isValid()){

	                fp.getForm().submit({

	                    url: "/common/common_fileLoad.action",

                        method:'POST',

	                    waitMsg: 'Uploading your photo...',

	                    success: function(fp, o){

	                        msg('Success', 'Processed file "'+o.result.file+'" on the server');

	                    }

	                });

                }

            }

        },{

            text: 'Reset',

            handler: function(){

                fp.getForm().getEl().dom.reset();

            }

        }]

    });



});