如何通过java获取露天分享的人？

Question

我是新来的露天社区，我通过使用java在户外社区创建了人员。

但现在我想通过使用java来获取该用户数据。我想下面，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

我继续在这里回答，因为它是很难在评论邮编：

正如Walfrat说：

你不应该创建一个新的PersonServiceImpl但 注入配置中的现有人。

因为人服务是由Spring处理的。

在你的背景文件，为您服务com.plianto.dmsservice.MyService，你应该声明现有的人服务是这样的：

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

然后在你的类：

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; 
    } 
    ... 
}