Caused by: org.hibernate.MappingException: No Dialect mapping for JDBC type: -4

错误代码：

org.springframework.orm.hibernate3.HibernateSystemException: No Dialect mapping for JDBC type: -4; nested exception is org.hibernate.MappingException: No Dialect mapping for JDBC type: -4    at org.springframework.orm.hibernate3.SessionFactoryUtils.convertHibernateAccessException(SessionFactoryUtils.java:659)    at org.springframework.orm.hibernate3.HibernateAccessor.convertHibernateAccessException(HibernateAccessor.java:412)    at org.springframework.orm.hibernate3.HibernateTemplate.execute(HibernateTemplate.java:377)    at org.springframework.orm.hibernate3.HibernateTemplate.executeFind(HibernateTemplate.java:342)    at com.hrrm.xglm.third.basic.dao.impl.GenericDaoImpl.findBySqlNoT(GenericDaoImpl.java:541)    at com.hrrm.xglm.third.card.dao.impl.Hibernate3PageSupportDaoImpl.findBySqlNoT(Hibernate3PageSupportDaoImpl.java:90)    at com.hrrm.gaa.task.dao.impl.TaskDaoImpl.getGuaranteeTime(TaskDaoImpl.java:518)    at com.hrrm.gaa.task.service.impl.TaskServiceImpl.getGuaranteeTime(TaskServiceImpl.java:1626)    at sun.reflect.GeneratedMethodAccessor156.invoke(Unknown Source)    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)    at java.lang.reflect.Method.invoke(Method.java:597)    at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:309)    at org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:183)    at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:150)    at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:107)    at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)    at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:89)    at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)    at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:202)    at $Proxy44.getGuaranteeTime(Unknown Source)    at com.hrrm.gaa.info.action.TaskAction.getGuaranteeTime(TaskAction.java:1596)    at sun.reflect.GeneratedMethodAccessor155.invoke(Unknown Source)    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)    at java.lang.reflect.Method.invoke(Method.java:597)    at ognl.OgnlRuntime.invokeMethod(OgnlRuntime.java:851)    at ognl.OgnlRuntime.callAppropriateMethod(OgnlRuntime.java:1253)    at ognl.ObjectMethodAccessor.callMethod(ObjectMethodAccessor.java:68)    at com.opensymphony.xwork2.ognl.accessor.XWorkMethodAccessor.callMethodWithDebugInfo(XWorkMethodAccessor.java:106)    at com.opensymphony.xwork2.ognl.accessor.XWorkMethodAccessor.callMethod(XWorkMethodAccessor.java:90)    at ognl.OgnlRuntime.callMethod(OgnlRuntime.java:1329)    at ognl.OgnlRuntime.callMethod(OgnlRuntime.java:1305)    at com.opensymphony.xwork2.ognl.accessor.CompoundRootAccessor.callMethod(CompoundRootAccessor.java:197)    at ognl.OgnlRuntime.callMethod(OgnlRuntime.java:1329)    at ognl.ASTMethod.getValueBody(ASTMethod.java:90)    at ognl.SimpleNode.evaluateGetValueBody(SimpleNode.java:212)    at ognl.SimpleNode.getValue(SimpleNode.java:258)    at ognl.Ognl.getValue(Ognl.java:494)    at ognl.Ognl.getValue(Ognl.java:458)    at com.opensymphony.xwork2.ognl.OgnlUtil.getValue(OgnlUtil.java:196)    at com.opensymphony.xwork2.ognl.OgnlValueStack.findValue(OgnlValueStack.java:229)    at org.apache.struts2.components.Component.findValue(Component.java:248)    at org.apache.struts2.components.Set.end(Set.java:101)    at org.apache.struts2.views.jsp.ComponentTagSupport.doEndTag(ComponentTagSupport.java:42)    at org.apache.jsp.task.taskList_jsp._jspx_meth_s_005fset_005f0(taskList_jsp.java:705)    at org.apache.jsp.task.taskList_jsp._jspx_meth_s_005fiterator_005f1(taskList_jsp.java:567)    at org.apache.jsp.task.taskList_jsp._jspService(taskList_jsp.java:220)    at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)    at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)    at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:377)    at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:313)    at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:260)    at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)    at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:646)    at org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:436)    at org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:374)    at org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:302)    at org.apache.struts2.dispatcher.ServletDispatcherResult.doExecute(ServletDispatcherResult.java:154)    at org.apache.struts2.dispatcher.StrutsResultSupport.execute(StrutsResultSupport.java:186)    at com.opensymphony.xwork2.DefaultActionInvocation.executeResult(DefaultActionInvocation.java:361)    at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:265)    at org.apache.struts2.interceptor.TokenInterceptor.handleValidToken(TokenInterceptor.java:178)    at org.apache.struts2.interceptor.TokenInterceptor.doIntercept(TokenInterceptor.java:144)    at com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:87)    at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:236)    at com.hrrm.xglm.PageSupportInterceptor.intercept(PageSupportInterceptor.java:44)    at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:236)    at com.opensymphony.xwork2.interceptor.DefaultWorkflowInterceptor.doIntercept(DefaultWorkflowInterceptor.java:163)    at com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:87)    at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:236)    at com.opensymphony.xwork2.validator.ValidationInterceptor.doIntercept(ValidationInterceptor.java:249)    at org.apache.struts2.interceptor.validation.AnnotationValidationInterceptor.doIntercept(AnnotationValidationInterceptor.java:68)    at com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:87)    at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:236)    at com.opensymphony.xwork2.interceptor.ConversionErrorInterceptor.intercept(ConversionErrorInterceptor.java:122)    at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:236)    at com.opensymphony.xwork2.interceptor.ParametersInterceptor.doIntercept(ParametersInterceptor.java:195)    at com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:87)    at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:236)    at com.opensymphony.xwork2.interceptor.ParametersInterceptor.doIntercept(ParametersInterceptor.java:195)    at com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:87)    at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:236)    at com.opensymphony.xwork2.interceptor.StaticParametersInterceptor.intercept(StaticParametersInterceptor.java:148)    at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:236)    at org.apache.struts2.interceptor.CheckboxInterceptor.intercept(CheckboxInterceptor.java:93)    at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:236)    at org.apache.struts2.interceptor.FileUploadInterceptor.intercept(FileUploadInterceptor.java:235)    at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:236)    at com.opensymphony.xwork2.interceptor.ModelDrivenInterceptor.intercept(ModelDrivenInterceptor.java:89)    at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:236)    at com.opensymphony.xwork2.interceptor.ScopedModelDrivenInterceptor.intercept(ScopedModelDrivenInterceptor.java:128)    at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:236)    at org.apache.struts2.interceptor.ProfilingActivationInterceptor.intercept(ProfilingActivationInterceptor.java:104)    at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:236)    at org.apache.struts2.interceptor.debugging.DebuggingInterceptor.intercept(DebuggingInterceptor.java:267)    at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:236)    at com.opensymphony.xwork2.interceptor.ChainingInterceptor.intercept(ChainingInterceptor.java:126)    at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:236)    at com.opensymphony.xwork2.interceptor.PrepareInterceptor.doIntercept(PrepareInterceptor.java:138)    at com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:87)    at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:236)    at com.opensymphony.xwork2.interceptor.I18nInterceptor.intercept(I18nInterceptor.java:148)    at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:236)    at org.apache.struts2.interceptor.ServletConfigInterceptor.intercept(ServletConfigInterceptor.java:164)    at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:236)    at com.opensymphony.xwork2.interceptor.AliasInterceptor.intercept(AliasInterceptor.java:128)    at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:236)    at com.opensymphony.xwork2.interceptor.ExceptionMappingInterceptor.intercept(ExceptionMappingInterceptor.java:176)    at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:236)    at com.hrrm.xglm.LoginInterceptor.intercept(LoginInterceptor.java:28)    at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:236)    at org.apache.struts2.impl.StrutsActionProxy.execute(StrutsActionProxy.java:52)    at org.apache.struts2.dispatcher.Dispatcher.serviceAction(Dispatcher.java:468)    at org.apache.struts2.dispatcher.ng.ExecuteOperations.executeAction(ExecuteOperations.java:77)    at org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter.doFilter(StrutsPrepareAndExecuteFilter.java:76)    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)    at com.xglm.common.util.CharacterEncodingFilter.doFilter(CharacterEncodingFilter.java:34)    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:109)    at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:298)    at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:852)    at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:588)    at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:489)    at java.lang.Thread.run(Thread.java:619)Caused by: org.hibernate.MappingException: No Dialect mapping for JDBC type: -4    at org.hibernate.dialect.TypeNames.get(TypeNames.java:56)    at org.hibernate.dialect.TypeNames.get(TypeNames.java:81)    at org.hibernate.dialect.Dialect.getHibernateTypeName(Dialect.java:369)    at org.hibernate.loader.custom.CustomLoader$Metadata.getHibernateType(CustomLoader.java:559)    at org.hibernate.loader.custom.CustomLoader$ScalarResultColumnProcessor.performDiscovery(CustomLoader.java:485)    at org.hibernate.loader.custom.CustomLoader.autoDiscoverTypes(CustomLoader.java:501)    at org.hibernate.loader.Loader.getResultSet(Loader.java:1796)    at org.hibernate.loader.Loader.doQuery(Loader.java:674)    at org.hibernate.loader.Loader.doQueryAndInitializeNonLazyCollections(Loader.java:236)    at org.hibernate.loader.Loader.doList(Loader.java:2220)    at org.hibernate.loader.Loader.listIgnoreQueryCache(Loader.java:2104)    at org.hibernate.loader.Loader.list(Loader.java:2099)    at org.hibernate.loader.custom.CustomLoader.list(CustomLoader.java:289)    at org.hibernate.impl.SessionImpl.listCustomQuery(SessionImpl.java:1695)    at org.hibernate.impl.AbstractSessionImpl.list(AbstractSessionImpl.java:142)    at org.hibernate.impl.SQLQueryImpl.list(SQLQueryImpl.java:152)    at com.hrrm.xglm.third.basic.dao.impl.GenericDaoImpl$2.doInHibernate(GenericDaoImpl.java:612)    at org.springframework.orm.hibernate3.HibernateTemplate.execute(HibernateTemplate.java:372)    ... 128 more

单独取sql执行之后是这样：

原因：
org.hibernate.MappingException: No Dialect mapping for JDBC type: -1异常是因为hibernate不支持数据库中的text类型，就是说hibernate没有注册该类型，而我们往往要用到这个类型

解决方法一：
从sql上面的函数下手：
用CONVERT函数，将text转成varchar
例如：CONVERT(varchar(100), isnull(bz, ”))
bz是text类型变量名，isnull函数判断下是否为空
或者
用CAST函数，将text转成varchar
例如：CAST(GROUP_CONCAT(a.flightExecuteTime) AS CHAR) AS flightExecuteTime

结果看图片：

解决方法二：（网上找的，没尝试过）

    问题原因：数据库表中有text类型的字段，而Hibernate在native查询中没有注册这个字段，因此发生这个错误。       解决方法：写一个类、修改hibernate配置文件。 写一个Dialect的子类，这里我 extends MySQL5Dialect类：       package xxx.xxx;    //xxx.xxx自己根据情况来写 import java.sql.Types;       import org.hibernate.dialect.MySQL5Dialect;       public class DialectForInkfish extends MySQL5Dialect {           public DialectForInkfish() {               super();               registerHibernateType(Types.LONGVARCHAR, 65535, "text");           }       }       修改Hibernate配置文件hibernate.cfg.xml，把      <property name="dialect">org.hibernate.dialect.MySQL5Dialect</property>       修改为：      <property name="dialect">com.ibm.crl.inkfish.config.DialectForInkfish</property>