ext4 form表单怎么提交的数据怎么在struts2中接收

var form = Ext.create('Ext.form.Panel',{
        // The fields
        bodyPadding: 5,
        id:'form',
//         standardSubmit:true,
        bodyPadding: '10 10 0',
        height:320,
           defaults: {
            anchor: '100%',
            allowBlank: false,
            labelWidth: 60
        },
        items: [
            {
                  xtype: 'textfield',
                  blankText :'名称不能为空!',
                fieldLabel: '名称',
                name: 'floorName',
                allowBlank: false
            },{
                xtype: 'textfield',
                blankText :'ip地址不能为空!',
                fieldLabel: 'IP地址',
                name: 'ip',
                allowBlank: false
            },{
                xtype: 'textfield',
                blankText :'总线编号不能为空!',
                fieldLabel: '总线编号',
                name: 'can',
                allowBlank: false
            },{
                xtype: 'textfield',
                blankText :'比例不能为空!',
                fieldLabel: '比例尺',
                name: 'scale',
                allowBlank: false
            },{
                fieldLabel: '地图',
                blankText :'地图不能为空!',
                xtype:'filefield',
                name: 'file',
                anchor: '100%',
                labelWidth: 60,
                allowBlank: false
            },{
                xtype: 'textarea',
                height:120,
                fieldLabel: '描述',
                name: 'desc'
           }],
        buttons: [{
            text: '重置',
            handler: function() {
                this.up('form').getForm().reset();
            }
        }, {
            text: '提交',
            formBind: true, //only enabled once the form is valid
            handler: function() {
                var form = this.up('form').getForm();
                if (form.isValid()) {
                    form.submit({
                         url: 'addFloor.action?building='+floorId,
                         mthod:'post',
                        waitMsg: '正在上传文件请稍后......',
                        success: function(form, action) {
                           Ext.Msg.alert('Success', '保存成功!');
                           Ext.getCmp("tree").getLoader().load();
                           Ext.getCmp("tree").expand(true);
                        },
                        failure: function(form, action) {
                            Ext.Msg.alert('Failed', '保存失败');
                        }
                    });
                }
            }
        }]
    })

public class LocateFloorExtAction extends BaseAction {
    String floorName;//楼层名称
    String ip;//ip地址
    String can;//总线编号
    File file;//地图
    String desc;//描述
    String scale;//比例尺
    String building;//楼层id
    ILocateBuildingService buildingService;
    ILocateFloorService service;