struts2中action实现ModelDriven后无法返回json的解决方法


            复制代码 代码如下:public class DeviceAction extends AbstractAction implements ModelDriven<Device> {    private static Log log = LogFactory.getLog(DeviceAction.class);    private Device device=new Device(); //只能json化 模型驱动的bean    private String result; //无法返回reslut的json值        public String getResult(){        return result;    }    public void setResult(String result){        this.result=result    }    public DeviceDTO getModel() {        return device;    }    public Device getDevice() {        return device;    }    public void setDevice(Device device) {        this.device = device;    }}             

xml配置:

复制代码 代码如下:<action name="queryPu"            class="com.jxj.bss.web.actions.DeviceAction"            method="queryPu">            <interceptor-ref name="isLogin"></interceptor-ref>            <result type="json">                <param name="includeProperties">                    resultCode                </param>            </result>        </action>

解决办法:

复制代码 代码如下:<action name="queryPu"            class="com.jxj.bss.web.actions.DeviceAction"            method="queryPu">            <interceptor-ref name="isLogin"></interceptor-ref>            <result type="json">                <param name="root">action</param>                <param name="includeProperties">                    resultCode                </param>            </result>        </action>