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>