javascript - 无法提取结果集 org.hibernate.exception.SQLGrammarException

Question

我无法获取结果，正在执行创建查询，但之后将其转换为列表无效。请帮我解决这个问题。为什么它没有被转换成列表我无法获取结果，正在执行创建查询，但之后将其转换为列表无效。请帮我解决这个问题。为什么它没有被转换成列表

表格脚本

CREATE TABLE Answer(
answerId   INTEGER,
questionId   INTEGER NOT NULL,
userId varchar2(40) NOT NULL,
answerString VARCHAR2(400) NOT NULL,
CONSTRAINT pk_Answer_answerId PRIMARY KEY(answerId)
);

bean 类

public class Answer {
private Integer answerId;
private Integer questionId;
private String userId;
private String answerString;
private String message;

public Integer getAnswerId() {
    return answerId;
}

public void setAnswerId(Integer answerId) {
    this.answerId = answerId;
}

public String getAnswerString() {
    return answerString;
}

public void setAnswerString(String answerString) {
    this.answerString = answerString;
}

public String getMessage() {
    return message;
}

public void setMessage(String message) {
    this.message = message;
}

public Integer getQuestionId() {
    return questionId;
}

public void setQuestionId(Integer questionId) {
    this.questionId = questionId;
}

public String getUserId() {
    return userId;
}

public void setUserId(String userId) {
    this.userId = userId;
}}

Controller 方法是:

$scope.tagForm.getAnswer = function(val) {
    alert("hi");
    window.location = "#/answer";
    $scope.tagForm.ans = null;
    var data = JSON.stringify($scope.tagForm);
    $http.post(URI + "tag/ans/"+val,data).then(function(response) {
        alert("hey");
        //var string=response.data;
        //var formattedString = string.join("\n");
        //$scope.askForm.message =formattedString;
        $scope.tagForm.ans =response.data;
        //alert($scope.tagForm.message);
    }, function(response) {
        $scope.tagForm.message = null;
    });
    };



@SuppressWarnings({ "unchecked", "unused" })
public Map<Integer, String> getAnswer(Integer question) throws Exception {
    Map<Integer, String> quesString = null;
    SessionFactory sessionFactory = null;
    Session session = null;
    List<AnswerEntity> custList1 = new ArrayList<AnswerEntity>();
    try {
        quesString = new LinkedHashMap<Integer, String>();
        sessionFactory = HibernateUtility.createSessionFactory();
        session = sessionFactory.openSession();
        AnswerEntity tag = new AnswerEntity();
        // Question q=new Question();
        // q.setTagId(question);
        // ques.setQuestionString(question.getQuestionString());
        System.out.println("dao" + question);

        // session.persist(ques);

        // session.getTransaction().begin();
        System.out.println("before query exec");
        Query query = session
                .createQuery("from AnswerEntity where questionId=?");
        query.setInteger(0, question);
        System.out.println(query);
        System.out.println("after query exec");
        custList1 = query.list();
        System.out.println(custList1.size());
        // List list = query.list();
        for (AnswerEntity tagEntity : custList1) {
            // System.out.println("Question ID=>"+tagEntity.getQuestionId()+"\nQuestion String=>"+tagEntity.getQuestionString());
            // List<String> newList = new ArrayList<String>();
            Answer a = new Answer();
            a.setQuestionId(tagEntity.getQuestionId());
            a.setAnswerString(tagEntity.getAnswerString());
            // newList.addAll(getTag(tagEntity.getQuestionId()));
            // String a=String.valueOf(tagEntity.getQuestionId());
            quesString.put(a.getQuestionId(), a.getAnswerString());

            // quesString.add(a);
            // quesString.addAll(newList);

        }
        // session.getTransaction().commit();

    } catch (HibernateException exception) {
        exception.printStackTrace();
        DOMConfigurator.configure("src/com/infy/resources/log4j.xml");
        Logger logger = Logger.getLogger(this.getClass());
        logger.error(exception.getMessage(), exception);
        throw new Exception("DAO.TECHNICAL_ERROR");
    } catch (Exception exception) {
        exception.printStackTrace();
        DOMConfigurator.configure("src/com/infy/resources/log4j.xml");
        Logger logger = Logger.getLogger(this.getClass());
        logger.error(exception.getMessage(), exception);
        throw exception;
    } finally {
        if (session.isOpen() || session != null) {
            session.close();
        }
    }
    return quesString;
}

错误日志

org.hibernate.exception.SQLGrammarException: could not extract ResultSet at org.hibernate.exception.internal.SQLExceptionTypeDelegate.convert(SQLExceptionTypeDelegate.java:80) at org.hibernate.exception.internal.StandardSQLExceptionConverter.convert(StandardSQLExceptionConverter.java:49) at org.hibernate.engine.jdbc.spi.SqlExceptionHelper.convert(SqlExceptionHelper.java:126) at org.hibernate.engine.jdbc.spi.SqlExceptionHelper.convert(SqlExceptionHelper.java:112) at org.hibernate.engine.jdbc.internal.ResultSetReturnImpl.extract(ResultSetReturnImpl.java:91) at org.hibernate.loader.Loader.getResultSet(Loader.java:2066) at org.hibernate.loader.Loader.executeQueryStatement(Loader.java:1863) at org.hibernate.loader.Loader.executeQueryStatement(Loader.java:1839) at org.hibernate.loader.Loader.doQuery(Loader.java:910) at org.hibernate.loader.Loader.doQueryAndInitializeNonLazyCollections(Loader.java:355) at org.hibernate.loader.Loader.doList(Loader.java:2554) at org.hibernate.loader.Loader.doList(Loader.java:2540) at org.hibernate.loader.Loader.listIgnoreQueryCache(Loader.java:2370) at org.hibernate.loader.Loader.list(Loader.java:2365) at org.hibernate.loader.hql.QueryLoader.list(QueryLoader.java:497) at org.hibernate.hql.internal.ast.QueryTranslatorImpl.list(QueryTranslatorImpl.java:387) at org.hibernate.engine.query.spi.HQLQueryPlan.performList(HQLQueryPlan.java:236) at org.hibernate.internal.SessionImpl.list(SessionImpl.java:1300) at org.hibernate.internal.QueryImpl.list(QueryImpl.java:103) at com.infy.dao.TagDAOImpl.getAnswer(TagDAOImpl.java:122) at com.infy.service.TagServiceImpl.getAnswer(TagServiceImpl.java:55) at com.infy.api.TagAPI.fetchTagList2(TagAPI.java:65) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) at java.lang.reflect.Method.invoke(Unknown Source) at org.glassfish.jersey.server.model.internal.ResourceMethodInvocationHandlerFactory$1.invoke(ResourceMethodInvocationHandlerFactory.java:81) at org.glassfish.jersey.server.model.internal.AbstractJavaResourceMethodDispatcher$1.run(AbstractJavaResourceMethodDispatcher.java:144) at org.glassfish.jersey.server.model.internal.AbstractJavaResourceMethodDispatcher.invoke(AbstractJavaResourceMethodDispatcher.java:161) at org.glassfish.jersey.server.model.internal.JavaResourceMethodDispatcherProvider$ResponseOutInvoker.doDispatch(JavaResourceMethodDispatcherProvider.java:160) at org.glassfish.jersey.server.model.internal.AbstractJavaResourceMethodDispatcher.dispatch(AbstractJavaResourceMethodDispatcher.java:99) at org.glassfish.jersey.server.model.ResourceMethodInvoker.invoke(ResourceMethodInvoker.java:389) at org.glassfish.jersey.server.model.ResourceMethodInvoker.apply(ResourceMethodInvoker.java:347) at org.glassfish.jersey.server.model.ResourceMethodInvoker.apply(ResourceMethodInvoker.java:102) at org.glassfish.jersey.server.ServerRuntime$2.run(ServerRuntime.java:317) at org.glassfish.jersey.internal.Errors$1.call(Errors.java:271) at org.glassfish.jersey.internal.Errors$1.call(Errors.java:267) at org.glassfish.jersey.internal.Errors.process(Errors.java:315) at org.glassfish.jersey.internal.Errors.process(Errors.java:297) at org.glassfish.jersey.internal.Errors.process(Errors.java:267) at org.glassfish.jersey.process.internal.RequestScope.runInScope(RequestScope.java:317) at org.glassfish.jersey.server.ServerRuntime.process(ServerRuntime.java:298) at org.glassfish.jersey.server.ApplicationHandler.handle(ApplicationHandler.java:1154) at org.glassfish.jersey.servlet.WebComponent.serviceImpl(WebComponent.java:471) at org.glassfish.jersey.servlet.WebComponent.service(WebComponent.java:425) at org.glassfish.jersey.servlet.ServletContainer.service(ServletContainer.java:383) at org.glassfish.jersey.servlet.ServletContainer.service(ServletContainer.java:336) at org.glassfish.jersey.servlet.ServletContainer.service(ServletContainer.java:223) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:303) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208) at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:220) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:122) at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:505) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:170) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:103) at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:957) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:116) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:423) at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1079) at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:620) at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:316) at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source) at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source) at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) at java.lang.Thread.run(Unknown Source) Caused by: java.sql.SQLSyntaxErrorException: ORA-00904: "ANSWERENTI0_"."MESSAGE": invalid identifier

AnswerEntity 类

public class AnswerEntity {
@Id
@GeneratedValue(generator = "generatorName")
private Integer answerId;
private Integer questionId;
private String userId;
private String answerString;
private String message;

public Integer getAnswerId() {
    return answerId;
}

public void setAnswerId(Integer answerId) {
    this.answerId = answerId;
}

public String getAnswerString() {
    return answerString;
}

public void setAnswerString(String answerString) {
    this.answerString = answerString;
}

public String getMessage() {
    return message;
}

public void setMessage(String message) {
    this.message = message;
}

public Integer getQuestionId() {
    return questionId;
}

public void setQuestionId(Integer questionId) {
    this.questionId = questionId;
}

public String getUserId() {
    return userId;
}

public void setUserId(String userId) {
    this.userId = userId;
}}

Answer 1

您的实体类中有属性message，但数据库中没有对应的列。这在堆栈跟踪中清楚地标识出来:

ORA-00904: "ANSWERENTI0_"."MESSAGE": invalid identifier

如果您想将该信息存储在数据库中，您需要创建列，或者将其从您的实体类中删除，或者用 @Transient 标记它以要求 hibernate 在 SQL 查询中忽略它，例如这个问题:Make hibernate ignore class variables that are not mapped