如何解决获取 org.hibernate.MappingException：没有 JDBC 类型的方言映射：-8 异常
我正在尝试通过 SQLQuery.list() 执行以下本机查询：
SELECT Report.ROWID,Rpt.REPORT_NAME
FROM REPORT Report,RPT Rpt
WHERE Report.RPT_ID = Rpt.RPT_ID AND Rpt.USER_ID <> (SELECT USER_ID FROM USER WHERE LOGIN_ID = 'SYSTEM')
AND Report.CON_ID = :1 AND Report.IMPLEMENTATION_PHASE = :2 AND Report.AIR_INTERFACE = :3
AND Report.DATE_PSAP_REQUEST_WITHDRAWN IS NOT NULL
AND Report.UPLOAD_DATE = (SELECT MAX(UPLOAD_DATE) FROM REPORT frs,RPT fr where frs.fcc_rpt_id = fr.fcc_rpt_id and fr.user_id <> (SELECT USER_ID FROM NEO_USER WHERE LOGIN_ID = 'SYSTEM'));
我的 hibernate-cfg.xml 文件的配置为，
<property name="connection.driver_class">oracle.jdbc.driver.OracleDriver</property>
<property name="connection.url">jdbc:oracle:thin:@localhost:1521:mydatabase</property>
<property name="connection.username">root</property>
<property name="connection.password">mydatabase</property>
<property name="connection.autocommit">false</property>
<!-- SQL dialect -->
<property name="dialect">org.hibernate.dialect.Oracle10gDialect</property>
但它没有执行，它在日志中出现错误，例如：
org.hibernate.MappingException: No Dialect mapping for JDBC type: -8
at org.hibernate.dialect.TypeNames.get(TypeNames.java:87)
at org.hibernate.dialect.TypeNames.get(TypeNames.java:118)
at org.hibernate.dialect.Dialect.getHibernateTypeName(Dialect.java:653)
at org.hibernate.loader.custom.JdbcResultMetadata.getHibernateType(JdbcResultMetadata.java:93)
at org.hibernate.loader.custom.ScalarResultColumnProcessor.performDiscovery(ScalarResultColumnProcessor.java:62)
at org.hibernate.loader.custom.CustomLoader.autoDiscoverTypes(CustomLoader.java:498)
at org.hibernate.loader.Loader.getResultSet(Loader.java:2074)
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.custom.CustomLoader.list(CustomLoader.java:353)
at org.hibernate.internal.SessionImpl.listCustomQuery(SessionImpl.java:1909)
at org.hibernate.internal.AbstractSessionImpl.list(AbstractSessionImpl.java:311)
at org.hibernate.internal.SQLQueryImpl.list(SQLQueryImpl.java:141)
at com.sprint.neo.querymodel.dao.QueryModelDAO.executeSqlQuery(QueryModelDAO.java:307)
at com.sprint.neo.querymodel.common.QueryObjectCache.executeQuery(QueryObjectCache.java:126)
at com.sprint.neo.e911.types.projecttypes.TMO_NG911ProjectType.validateOnFccReport(TMO_NG911ProjectType.java:77)
at com.sprint.neo.querymodel.common.QueryApplication.checkPsapPhaseOnFccReport(QueryApplication.java:2249)
at com.sprint.neo.querymodel.common.QueryApplication.pspAddPsap(QueryApplication.java:2450)
at com.sprint.neo.e911.util.prj.MassProjectCreateUtil.addPsap(MassProjectCreateUtil.java:215)
at com.sprint.neo.e911.util.prj.MassProjectCreateUtil.createProject(MassProjectCreateUtil.java:161)
at com.sprint.neo.e911.util.prj.BaseMassProjectCreateHandler.validateAndAddProjects(BaseMassProjectCreateHandler.java:33)
at com.sprint.neo.e911.util.prj.MassProjectCreateApi.validateAndAddProjects(MassProjectCreateApi.java:123)
at com.sprint.neo.engine.controller.actions.MassProjCreateAction.doExecute(MassProjCreateAction.java:74)
at com.sprint.neo.bc4j.controller.actions.NeoAction.execute(NeoAction.java:34)
at org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:425)
at org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:228)
at com.sprint.neo.bc4j.controller.NeoRequestProcessor.process(NeoRequestProcessor.java:77)
at org.apache.struts.action.ActionServlet.process(ActionServlet.java:1913)
at org.apache.struts.action.ActionServlet.doPost(ActionServlet.java:462)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:660)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:741)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:231)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:53)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:202)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:96)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:526)
at org.apache.catalina.valves.RequestFilterValve.process(RequestFilterValve.java:348)
at org.apache.catalina.valves.RemoteAddrValve.invoke(RemoteAddrValve.java:53)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:139)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:92)
at org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:678)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:74)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:343)
at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:408)
at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:66)
at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:861)
at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1579)
at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49)
at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
at java.base/java.lang.Thread.run(Thread.java:830)
你能给我任何解决这个错误的方法吗？ 我很少有这样的建议
- Getting org.hibernate.MappingException: No Dialect mapping for JDBC type: -4 exception?
- JPA SQL Server No Dialect mapping for JDBC type: -9
但这些对我的场景没有帮助。
解决方法
查询返回的列之一是 ROWID。
我认为这是导致问题的查询：
<?php include('header.php'); ?>
<?php include('session.php'); ?>
<head>
<script src="https://code.jquery.com/jquery-3.5.1.js"></script>
<script src="https://cdn.datatables.net/1.10.24/js/jquery.dataTables.min.js"></script>
<script src="https://cdn.datatables.net/fixedheader/3.1.8/js/dataTables.fixedHeader.min.js"></script>
<meta name="viewport" content="width=device-width,initial-scale=">
<style>
<link rel="stylesheet" href="https://cdn.datatables.net/1.10.24/css/jquery.dataTables.min.css" >
<link rel="stylesheet" href="https://cdn.datatables.net/fixedcolumns/3.3.2/css/fixedColumns.dataTables.min.css" >
div.table {
width: 90%;
}
</style>
</head>
<body>
<?php include('navbar_teacher.php'); ?>
<div class="container-fluid">
<div class="row-fluid">
<?php include('teacher_sidebar.php'); ?>
<div class="span9" id="content">
<div class="row-fluid">
<!-- block -->
<div id="block_bg" class="block">
<div class="navbar navbar-inner block-header">
<div class="muted pull-left">Exam List</div>
</div>
<div >
<div class="table">
<table class="container1" id="example" >
<thead>
<tr>
<th >Name of Student</th>
<th>Exam Title</th>
<th>Exam Description</th>
<th>Date</th>
<th>Grade</th>
</tr>
</thead>
<tbody>
<?php $class_query = mysqli_query($conn,"SELECT
quiz.quiz_title,quiz.date_added,student.firstname,student.lastname,student_class_quiz.grade,quiz.quiz_description
FROM quiz
INNER JOIN class_quiz ON class_quiz.quiz_id = quiz.quiz_id
INNER JOIN student_class_quiz ON class_quiz.class_quiz_id = student_class_quiz.class_quiz_id
INNER JOIN student ON student_class_quiz.student_id = student.student_id
ORDER BY quiz.quiz_id") or die(mysqli_error());
if(mysqli_num_rows($class_query) > 0 ){
while($row = mysqli_fetch_array($class_query)){ //Creates a loop to loop through results
echo "<tr>
<td>" . $row['lastname'] . $row['firstname'] . "</td>
<td>" . $row['quiz_title'] . "</td>
<td>" . $row['quiz_description'] . "</td>
<td>" . $row['date_added'] . "</td>
<td>" . $row['grade'] . "</td>
</tr>";
}
}
?>
</tbody>
</table>
</form>
</div>
</div>
</div>
<!-- /block -->
</div>
</div>
</div>
<?php include('footer.php'); ?>
</div>
<?php include('script.php'); ?>
</body>
<script>
$(document).ready(function() {
// Setup - add a text input to each footer cell
$('#example thead tr').clone(true).appendTo( '#example thead' );
$('#example thead tr:eq(1) th').each( function (i) {
var title = $(this).text();
$(this).html( '<input type="text" placeholder="'+title+'" />' );
$( 'input',this ).on( 'keyup change',function () {
if ( table.column(i).search() !== this.value ) {
table
.column(i)
.search( this.value )
.draw();
}
} );
} );
var table = $('#example').DataTable( {
orderCellsTop: false,// fixedHeader: false,retrieve: true,scrollY: "300px",scrollX: true,// scrollCollapse: true,paging: false,columnDefs: [
{ width: '20%',targets: 0 }
],// fixedColumns: true
//paging: false
} );
} );
</script>
</html>
以下是三种可能的解决方案：
选项 1：不返回 ROWID
选项 2：创建自定义方言
您可以创建一个自定义方言来告诉 Hibernate ORM how to convert the ROWID to a Java type。
我不确定如何在 Java 中表示 SELECT FccReportSave.ROWID ...
，也许 ROWID 会起作用：
String然后你可以通过设置属性package my.project;
public class OracleCustomDialect extends Oracle10gDialect {
public OracleCustomDialect() {
this.registerHibernateType( java.sql.Types.ROWID,org.hibernate.type.StandardBasicTypes.STRING );
}
}
来使用这个方言：
hibernate.dialect您也可以创建一个 custom type 而不是使用 <property name="hibernate.dialect">my.project.OracleCustomDialect</property>
，以便您可以将其转换为您想要的任何内容。
选项 3：addScalar
StandardBasicTypes.STRING 版权声明：本文内容由互联网用户自发贡献，该文观点与技术仅代表作者本人。本站仅提供信息存储空间服务，不拥有所有权，不承担相关法律责任。如发现本站有涉嫌侵权/违法违规的内容， 请发送邮件至 dio@foxmail.com 举报，一经查实，本站将立刻删除。