Java Liferay Genric Portlet Dem空值

这是我的带有@ProcessAction注释的类。当我在文本字段中输入时，它将在控制台中显示输入数据：

public class FirstGenericDemo extends GenericPortlet {

    public void init() {
        viewTemplate = getInitParameter("view-template");
    }

    @RenderMode(name= "view")
    public void myView(RenderRequest renderRequest, RenderResponse renderResponse) throws IOException, PortletException {
        include(viewTemplate, renderRequest, renderResponse);
    }

   //Annotation
   @ProcessAction(name = "myActionMethod")
   public void myActionMethod(ActionRequest request, ActionResponse response) throws PortletException, IOException {
    // TODO Auto-generated method stub
        String name = ParamUtil.getString(request,"name");
        System.out.println("Name => " + name);
    }

    protected void include(String path, RenderRequest renderRequest,
       RenderResponse renderResponse)
    throws IOException, PortletException {

        PortletRequestDispatcher portletRequestDispatcher =
            getPortletContext().getRequestDispatcher(path);

        if (portletRequestDispatcher == null) {
            _log.error(path + " is not a valid include");
        }
        else {
            portletRequestDispatcher.include(renderRequest, renderResponse);
        }
    } 
    protected String viewTemplate;
    private static Log _log = LogFactoryUtil.getLog(FirstGenericDemo.class);

}

下面是myView.jsp：

<%@ taglib uri="http://java.sun.com/portlet_2_0" prefix="portlet" %>

<portlet:defineObjects />

This is the <b>First Generic Demo</b> portlet in View mode.

<portlet:actionURL var="myaction" name="myActionMethod">
</portlet:actionURL>
<form action="${myaction}" method="post">
Name: <input type = "text" name="name">
<input type="submit" value="SUBMIT">
</form>

这是视图模式下的第一个通用演示portlet。
姓名：

---

但当我运行时，它总是在控制台中打印“Name=>null”。如何修复它？

portlet的参数通常需要用HTML命名-因为页面由如此多的portlet组成，这是为了消除页面上可能共存的单个输入的歧义。将JSP更改为包含

<input type="text" name="<portlet:namespace/>name" />

你准备好了。在Java方面，这将被消歧为“name”

您还可以尝试使用

，或在OSGi捆绑包（Liferay 7.0及更高版本）中作为
com.Liferay.portlet.requires namespaced parameters=false