1

从数据库中获取org.hibernate.MappingException: No Dialect mapping for JDBC type: -1行时出现错误。

错误详情

exception

org.springframework.web.util.NestedServletException: Request processing failed; nested exception is org.hibernate.MappingException: No Dialect mapping for JDBC type: -1
    org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:659)
    org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:563)
    javax.servlet.http.HttpServlet.service(HttpServlet.java:637)
    javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
root cause

org.hibernate.MappingException: No Dialect mapping for JDBC type: -1
    org.hibernate.dialect.TypeNames.get(TypeNames.java:56)
    org.hibernate.dialect.TypeNames.get(TypeNames.java:81)
    org.hibernate.dialect.Dialect.getHibernateTypeName(Dialect.java:370)
    org.hibernate.loader.custom.CustomLoader$Metadata.getHibernateType(CustomLoader.java:559)
    org.hibernate.loader.custom.CustomLoader$ScalarResultColumnProcessor.performDiscovery(CustomLoader.java:485)
    org.hibernate.loader.custom.CustomLoader.autoDiscoverTypes(CustomLoader.java:501)
    org.hibernate.loader.Loader.getResultSet(Loader.java:1796)
    org.hibernate.loader.Loader.doQuery(Loader.java:674)
    org.hibernate.loader.Loader.doQueryAndInitializeNonLazyCollections(Loader.java:236)
    org.hibernate.loader.Loader.doList(Loader.java:2213)
    org.hibernate.loader.Loader.listIgnoreQueryCache(Loader.java:2104)
    org.hibernate.loader.Loader.list(Loader.java:2099)
    org.hibernate.loader.custom.CustomLoader.list(CustomLoader.java:289)
    org.hibernate.impl.SessionImpl.listCustomQuery(SessionImpl.java:1695)
    org.hibernate.impl.AbstractSessionImpl.list(AbstractSessionImpl.java:142)
    org.hibernate.impl.SQLQueryImpl.list(SQLQueryImpl.java:152)
    com.report.dao.BestSellerReportDAO.getBestSellReport(BestSellerReportDAO.java:82)
    com.report.service.BestSellerService.getBestSellReport(BestSellerService.java:21)
    com.report.service.BestSellerService$$FastClassByCGLIB$$3c172a2c.invoke(<generated>)
    net.sf.cglib.proxy.MethodProxy.invoke(MethodProxy.java:149)
    org.springframework.aop.framework.Cglib2AopProxy$CglibMethodInvocation.invokeJoinpoint(Cglib2AopProxy.java:692)
    org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:150)
    org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:108)
    org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)
    org.springframework.aop.framework.Cglib2AopProxy$DynamicAdvisedInterceptor.intercept(Cglib2AopProxy.java:625)
    com.report.service.BestSellerService$$EnhancerByCGLIB$$1ca7eb9d_2.getBestSellReport(<generated>)
    com.report.controller.BestSellerReportController.onSubmit(BestSellerReportController.java:55)
    sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
    sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
    java.lang.reflect.Method.invoke(Method.java:597)
    org.springframework.web.bind.annotation.support.HandlerMethodInvoker.doInvokeMethod(HandlerMethodInvoker.java:710)
    org.springframework.web.bind.annotation.support.HandlerMethodInvoker.invokeHandlerMethod(HandlerMethodInvoker.java:167)
    org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter.invokeHandlerMethod(AnnotationMethodHandlerAdapter.java:414)
    org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter.handle(AnnotationMethodHandlerAdapter.java:402)
    org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:771)
    org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:716)
    org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:647)
    org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:563)
    javax.servlet.http.HttpServlet.service(HttpServlet.java:637)
    javax.servlet.http.HttpServlet.service(HttpServlet.java:717)

使用代码： 

query = sessionFactory.getCurrentSession().createSQLQuery("CALL my_sp_test(:gender_id,:category_id,:is_date_criteria_on,:from_date,:to_date,:unit_sold_above)");
query.setParameter("gender_id",bestSellCriteriaForms[0].getSelectedGender());       query.setParameter("category_id",bestSellCriteriaForms[0].getSelectedDepartment());
query.setParameter("unit_sold_above", 200);
query.setParameter("is_date_criteria_on", true);
query.setParameter("from_date", date);
query.setParameter("to_date", date);

//Get query as list
reportList = query.list();

我正在搜索此错误，但尚未找到任何解决方案。

我该如何解决这个问题？（老实说，我不明白为什么会这样）

4

3 回答 3

2

我通过编写自己的方言课程来解决我的答案

import java.sql.Types;

import org.hibernate.Hibernate;
import org.hibernate.dialect.MySQLDialect;
import org.hibernate.dialect.function.StandardSQLFunction;

public class CustomeDialect extends MySQLDialect {


public CustomeDialect(){
    registerFunction("group_concat", new StandardSQLFunction("group_concat", Hibernate.STRING));
    registerFunction("coalesce", new StandardSQLFunction("coalesce", Hibernate.STRING));
    registerHibernateType(Types.LONGVARCHAR, Hibernate.TEXT.getName());

}
}

并添加到 disptcher-servlet.xml 作为

<bean id="MySessionFactory" class="org.springframework.orm.hibernate3.annotation.AnnotationSessionFactoryBean">
    <property name="dataSource" ref="mydbDatasource"/>
     <property name="configurationClass">
            <value>org.hibernate.cfg.AnnotationConfiguration</value>
     </property>
     <property name="packagesToScan" value="com.example.entity" />
     <property name="hibernateProperties">
      <value>
        hibernate.dialect=com.example.utils.CustomeDialect
      </value>
    </property>
  </bean>

它对我来说工作正常。

于 2012-07-04T11:09:48.880 回答
1

像这样创建 hibernate.cfg.xml 。

<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE hibernate-configuration PUBLIC
"-//Hibernate/Hibernate Configuration DTD 3.0//EN"
"http://hibernate.sourceforge.net/hibernate-configuration-3.0.dtd">
<hibernate-configuration>
  <session-factory>
    <property name="hibernate.bytecode.use_reflection_optimizer">false</property>
    <property name="hibernate.connection.driver_class">com.mysql.jdbc.Driver</property>
    <property name="hibernate.connection.password">password</property>
    <property   name="hibernate.connection.url">jdbc:mysql://localhost:3306/mkyong</property>
    <property name="hibernate.connection.username">root</property>
    <property name="hibernate.dialect">org.hibernate.dialect.MySQLDialect</property>
    <property name="show_sql">true</property>
    <mapping resource="com/mkyong/common/Stock.hbm.xml"></mapping>
</session-factory>

于 2012-06-14T08:53:14.080 回答
1

问题是返回类型。my_sp_test 的返回类型是什么？JDBC 驱动程序将返回类型报告为 -1，但 Hibernate 不知道如何解释它，您也没有告诉它如何解释。

我的猜测是 my_sp_test 没有返回类型，但您正试图通过选择查询工具使用它。如果 my_sp_test 没有返回，那么您可以尝试调用Query.executeUpdate()insteasd of Query.list()。我不能肯定地说这executeUpdate确实适用于处理 UPDATE/DELETE 查询。同样，如果是这种情况，您最好的选择是使用 JDBC。

于 2012-06-14T12:32:27.330 回答