org.hibernate.exception.SQLGrammarException: could not get next sequence value at org.hibernate.exception.SQLStateConverter.convert(SQLStateConverter.java:90) at org.hibernate.exception.JDBCExceptionHelper.convert(JDBCExceptionHelper.java:66) at org.hibernate.id.SequenceGenerator.generate(SequenceGenerator.java:119) at org.hibernate.id.SequenceHiLoGenerator.generate(SequenceHiLoGenerator.java:81) at org.hibernate.event.def.AbstractSaveEventListener.saveWithGeneratedId(AbstractSaveEventListener.java:122) at org.hibernate.event.def.DefaultSaveOrUpdateEventListener.saveWithGeneratedOrRequestedId(DefaultSaveOrUpdateEventListener.java:210) at org.hibernate.event.def.DefaultSaveEventListener.saveWithGeneratedOrRequestedId(DefaultSaveEventListener.java:56) at org.hibernate.event.def.DefaultSaveOrUpdateEventListener.entityIsTransient(DefaultSaveOrUpdateEventListener.java:195) at org.hibernate.event.def.DefaultSaveEventListener.performSaveOrUpdate(DefaultSaveEventListener.java:50) at org.hibernate.event.def.DefaultSaveOrUpdateEventListener.onSaveOrUpdate(DefaultSaveOrUpdateEventListener.java:93) at org.hibernate.impl.SessionImpl.fireSave(SessionImpl.java:563) at org.hibernate.impl.SessionImpl.save(SessionImpl.java:551) at org.hibernate.impl.SessionImpl.save(SessionImpl.java:547) at com.bjsxt.dao.impl.UserDAOImpl.save(UserDAOImpl.java:35) at com.bjsxt.service.UserService.add(UserService.java:20) at com.bjsxt.service.UserServiceTest.testAdd(UserServiceTest.java:20) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:606) at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:47) at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12) at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:44) at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17) at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:271) at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:70) at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:50) at org.junit.runners.ParentRunner$3.run(ParentRunner.java:238) at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:63) at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:236) at org.junit.runners.ParentRunner.access$000(ParentRunner.java:53) at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:229) at org.junit.runners.ParentRunner.run(ParentRunner.java:309) at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:50) at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38) at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:467) at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:683) at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:390) at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:197) Caused by: java.sql.SQLSyntaxErrorException: ORA-02289: 順序が存在しません。 at oracle.jdbc.driver.T4CTTIoer.processError(T4CTTIoer.java:447) at oracle.jdbc.driver.T4CTTIoer.processError(T4CTTIoer.java:396) at oracle.jdbc.driver.T4C8Oall.processError(T4C8Oall.java:951) at oracle.jdbc.driver.T4CTTIfun.receive(T4CTTIfun.java:513) at oracle.jdbc.driver.T4CTTIfun.doRPC(T4CTTIfun.java:227) at oracle.jdbc.driver.T4C8Oall.doOALL(T4C8Oall.java:531) at oracle.jdbc.driver.T4CPreparedStatement.doOall8(T4CPreparedStatement.java:208) at oracle.jdbc.driver.T4CPreparedStatement.executeForDescribe(T4CPreparedStatement.java:886) at oracle.jdbc.driver.OracleStatement.executeMaybeDescribe(OracleStatement.java:1175) at oracle.jdbc.driver.OracleStatement.doExecuteWithTimeout(OracleStatement.java:1296) at oracle.jdbc.driver.OraclePreparedStatement.executeInternal(OraclePreparedStatement.java:3613) at oracle.jdbc.driver.OraclePreparedStatement.executeQuery(OraclePreparedStatement.java:3657) at oracle.jdbc.driver.OraclePreparedStatementWrapper.executeQuery(OraclePreparedStatementWrapper.java:1495) at org.apache.commons.dbcp.DelegatingPreparedStatement.executeQuery(DelegatingPreparedStatement.java:93) at org.hibernate.id.SequenceGenerator.generate(SequenceGenerator.java:98) ... 36 more
解决方案:
首先:要生成相应的序列
sql:如下
// 序列字符段sequenceName XXX
create sequence XXX
minvalue 1
maxvalue 999999999999999999999999999
start with 1
increment by 1
cache 20;
第二步:
在对应的类中加入:
@GeneratedValue(strategy = GenerationType.SEQUENCE, generator = "student_sequence")
@SequenceGenerator(name = "student_sequence", allocationSize = 1, initialValue = 1, sequenceName = "student")
package com.bjsxt.model; import javax.persistence.Entity; import javax.persistence.GeneratedValue; import javax.persistence.GenerationType; import javax.persistence.Id; import javax.persistence.SequenceGenerator; import javax.persistence.Table; @Entity @Table(name="t_user") public class UserM { private int id; private String name; @Id @GeneratedValue(strategy = GenerationType.SEQUENCE, generator = "student_sequence") @SequenceGenerator(name = "student_sequence", allocationSize = 1, initialValue = 1, sequenceName = "student") public int getId() { return id; } public void setId(int id) { this.id = id; } public String getName() { return name; } public void setName(String name) { this.name = name; } }
如果不用注解的话,而使用xml进行配置的话:
加入以下:
<id name="student_id" column="student_id" type="java.lang.Integer">
<generator class="native">
<param name="sequence">student_sequence</param>
</generator>
</id>
<hibernate-mapping package="My.heb"> <!-- <property name="packagesToScan" value="My.heb" /> --> <class name="My.heb.Student" table="Student"> <id name="student_id" column="student_id" type="java.lang.Integer"> <generator class="native"> <param name="sequence">student_sequence</param> </generator> </id> <property name="student_name" column="Student_Name" type="java.lang.String" /> <property name="student_age" column="Student_Age" type="java.lang.Integer" /> </class> </hibernate-mapping>
注意:
import javax.persistence.Entity; import javax.persistence.GeneratedValue; import javax.persistence.GenerationType; import javax.persistence.Id; import javax.persistence.SequenceGenerator; import javax.persistence.Table;
以上的包别导错了,否则会有问题
最后在db里创建相应的表:
CREATE TABLE t_user ( id_C VARCHAR2(8) NOT NULL, name VARCHAR2(11) , CONSTRAINT PK_t_user PRIMARY KEY (id) USING INDEX )
通过 @Table(name="t_user") 对上面UserM类进行对应