Question

我是露天社区的新手，我通过使用java创建了露天社区的人。

但现在我想通过使用java来获取用户数据。我正在尝试如下，但它引发空指针异常。

PersonServiceImpl personServiceImpl = new PersonServiceImpl();
        NodeRef nodeRef = personServiceImpl.getPerson("sobhan");
        System.out.println("Person Service imple "+nodeRef);

错误是

Aug 03, 2016 5:43:32 PM org.apache.catalina.core.ApplicationContext log
INFO: Initializing Spring FrameworkServlet 'testing'
+==========================================
uplaod file 
Aug 03, 2016 5:43:58 PM org.apache.catalina.core.StandardWrapperValve invoke
SEVERE: Servlet.service() for servlet [testing] in context with path [/SpringWithAlfrescoScreens] threw exception [Request processing failed; nested exception is java.lang.NullPointerException] with root cause
java.lang.NullPointerException
    at org.alfresco.repo.security.person.PersonServiceImpl.getFromCache(PersonServiceImpl.java:1827)
    at org.alfresco.repo.security.person.PersonServiceImpl.getPersonOrNullImpl(PersonServiceImpl.java:530)
    at org.alfresco.repo.security.person.PersonServiceImpl.getPersonImpl(PersonServiceImpl.java:489)
    at org.alfresco.repo.security.person.PersonServiceImpl.getPerson(PersonServiceImpl.java:476)
    at org.alfresco.repo.security.person.PersonServiceImpl.getPerson(PersonServiceImpl.java:433)
    at com.plianto.dmsservice.DummyDmsService.perm(DummyDmsService.java:70)
    at com.service.AlfService.saveApplication(AlfService.java:116)
    at com.controller.AlfController.saveApplication(AlfController.java:146)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:606)
    at org.springframework.web.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:221)
    at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:137)
    at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:110)
    at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandleMethod(RequestMappingHandlerAdapter.java:777)
    at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:706)
    at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:85)
    at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:943)
    at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:877)
    at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:966)
    at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:857)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:621)
    at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:842)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:728)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:305)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
    at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:51)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
    at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:222)
    at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:123)
    at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:171)
    at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:100)
    at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:953)
    at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118)
    at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:408)
    at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1041)
    at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:603)
    at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:310)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
    at java.lang.Thread.run(Thread.java:745)

Answer 1

我在这里继续回答，因为很难在评论中发布代码：

正如沃尔法拉特所说：

您不应该创建新的PersonServiceImpl 在配置中注入现有的。

因为人员服务由Spring处理。

在您的上下文文件中，对于您的服务com.plianto.dmsservice.MyService，您应该以这种方式声明现有的人员服务：

<bean id="dummyDmsService" class="com.plianto.dmsservice.DummyDmsService">
    <property name="personService">
        <ref bean="PersonService" />
    </property>
</bean>

然后在你的班上：

public class DummyDmsService{
    private PersonService personService;

    /**
     * @return the personService
     */
    public final PersonService getPersonService() {
        return personService;
    }

    /**
     * @param pPersonService
     *            the personService to set
     */
    public final void setPersonService(final PersonService pPersonService) {
        personService = pPersonService;
    }
    ...
}

如何通过java获得alfresco人员分享？

1 个答案: