从ATG中的存储库提取属性时获取NullPointerException

Question

我正在尝试从profile repository中获取first name和last name等属性，并使用Droplet将其显示在jsp中。下面是我的示例代码：sampledroplet.java

public class SampleDroplet extends DynamoServlet {

private Repository mProfileRepository;
@Override
public void service(DynamoHttpServletRequest pReq, DynamoHttpServletResponse pRes)
        throws ServletException, IOException {

    String lFirstName = null;
    String lLastName = null;
    String lProfileId = pReq.getParameter("profileId");     
    try {
        RepositoryItem lItem = getProfileRepository().getItem(lProfileId, "user");
        lFirstName = (String) lItem.getPropertyValue("firstName");
        lLastName = (String) lItem.getPropertyValue("lastName");
    } catch (RepositoryException e) {
        e.printStackTrace();
    }
    pReq.setParameter("firstName", lFirstName);
    pReq.setParameter("lastName", lLastName);
    pReq.serviceParameter("output", pReq, pRes);
}

SampleDroplet.Properties

$class=com.tap.droplet.SampleDroplet
scope=global
profileRepository=/atg/userProfiling/ProfileAdaptarRepository

sampledroplet.jsp

<dsp:page>
<dsp:importbean bean="/atg/userprofiling/Profile" var="profile" />
<dsp:importbean bean="/com/tap/droplet/SampleDroplet" />
<dsp:getvalueof var="profileId" bean="Profile.id"/>
    <dsp:droplet name="SampleDroplet">
        <dsp:param name="profileId" value="${profileId}" />
        <dsp:oparam name="output">
            Profile's First Name : <dsp:valueof param="firstName"/>
                      Last Name : <dsp:valueof param="lastName"/>
        </dsp:oparam>
    </dsp:droplet>
</dsp:page>

我试着在jsp中显示profileId，它起作用了。但当我将它传递给droplet时，它显示NullPointerException

java.lang.NullPointerException
at com.tap.droplet.SampleDroplet.service(SampleDroplet.java:26)
at atg.servlet.DynamoServlet.service(DynamoServlet.java:152)
at atg.taglib.dspjsp.DropletTag.invokeServlet(DropletTag.java:420)
at atg.taglib.dspjsp.DropletTag.doAfterBody(DropletTag.java:705)
at     jsp_servlet._test._droplet.__sampledroplet._jsp__tag18(__sampledroplet.java:874)
Truncated. see log file for complete stacktrace

如果有人知道是什么问题，请帮助我。

提前致谢

Answer 1

看来问题出在这里：

profileRepository=/atg/userProfiling/ProfileAdaptarRepository

Nucleus找不到这个成分：

1. “UserProfiling”应为小写。
2. ProfileAdapterRepository->ProfileAdapterRepository