java.lang.ClassCastException:[Ljava.lang.Object；

我的应用程序中有两个函数，执行查询后出现异常

java.lang.ClassCastException: [Ljava.lang.Object; 
java.lang.ClassCastException: [Ljava.lang.Object;
    at org.openmrs.module.scheduler.impl.SchedulerDWR.fetchUserStatus(SchedulerDWR.java:2011)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
    at java.lang.reflect.Method.invoke(Method.java:597)
    at org.directwebremoting.impl.ExecuteAjaxFilter.doFilter(ExecuteAjaxFilter.java:34)
    at org.directwebremoting.impl.DefaultRemoter$1.doFilter(DefaultRemoter.java:428)
    at org.directwebremoting.impl.DefaultRemoter.execute(DefaultRemoter.java:431)
    at org.directwebremoting.impl.DefaultRemoter.execute(DefaultRemoter.java:283)
    at org.directwebremoting.servlet.PlainCallHandler.handle(PlainCallHandler.java:52)
    at org.directwebremoting.servlet.UrlProcessor.handle(UrlProcessor.java:101)
    at org.directwebremoting.servlet.DwrServlet.doPost(DwrServlet.java:146)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:637)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:718)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
    at org.openmrs.web.MyTimerFilter.doFilter(MyTimerFilter.java:69)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
    at org.openmrs.web.filter.GZIPFilter.doFilterInternal(GZIPFilter.java:61)
    at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:76)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
    at org.openmrs.module.web.filter.ModuleFilterChain.doFilter(ModuleFilterChain.java:77)
    at org.openmrs.module.web.filter.ModuleFilter.doFilter(ModuleFilter.java:59)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
    at org.openmrs.web.filter.OpenmrsFilter.doFilterInternal(OpenmrsFilter.java:112)
    at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:76)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
    at org.springframework.orm.hibernate3.support.OpenSessionInViewFilter.doFilterInternal(OpenSessionInViewFilter.java:198)
    at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:76)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
    at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:97)
    at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:76)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
    at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
    at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
    at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
    at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
    at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:111)
    at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:298)
    at org.apache.coyote.http11.Http11AprProcessor.process(Http11AprProcessor.java:865)
    at org.apache.coyote.http11.Http11AprProtocol$Http11ConnectionHandler.process(Http11AprProtocol.java:579)
    at org.apache.tomcat.util.net.AprEndpoint$Worker.run(AprEndpoint.java:1555)
    at java.lang.Thread.run(Thread.java:662)

这些都是功能 一,

职能2

public List<ModuleUser> fetchUserStatus(int id) {
    try
    {
        session=sessionFactory.getCurrentSession();
        SQLQuery m=session.createSQLQuery("select * from users");

        return m.list();        
    }
    catch(Exception e)
    {
        e.printStackTrace();
        return null;
    }
}

---

有人能指出代码有什么问题吗？

本例中的原始查询返回标量值：

List<Object[]>

ModuleUser是映射的@Entity吗？如果是，则使用HQL而不是本机查询

List<ModuleUser> users = session.createQuery("from ModuleUser").list()

---

否则，如果您也被迫使用原生SQL@aim solution

，请不要在堆栈溢出代码中使用制表符-它的格式根本不好。您应该提供异常Stack trace.java.lang.ClassCastException：[Ljava.lang.Object；位于org.openmrs.module.scheduler.impl.SchedulerDWR.fetchUserStatusSchedulerDWR.java:2011位于sun.reflect.NativeMethodAccessorImpl.invoke0Native方法sun.reflect.NativeMethodAccessorImpl.invokeNativeMethodAccessorImpl.java:39位于sun.reflect.DelegatingMethodAccessorImpl.invokeDelegatingMethodAccessorImpl:25位于java.lang.reflect.Method.invokeMethod.java:597我也有同样的问题。也使用您的解决方案，但它对我不起作用。请帮助

 SQLQuery m=session.createSQLQuery("select * from users").addEntity(ModuleUser.class);

List<ModuleUser> users = session.createQuery("from ModuleUser").list()