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我正在使用休眠技術的項目。 我從休眠reveng系統中獲得POJO類，然後嘗試使用保存數據庫進程測試我的項目設置。這是我得到我的「無法插入：[tables.Users]」錯誤。 我會分享必要的課程。 這是保存數據庫類。插入失敗，SQL語法異常在休眠MySQL 5
static boolean SaveDatabase(Users object) {
Session session = null;
try {
session = HibernateUtil.getSessionFactory().openSession();
Transaction transaction = null;
try {
transaction = session.beginTransaction();
session.save(object);
transaction.commit();
} catch (Exception e) {
transaction.rollback();
System.out.println(e.getMessage());
return false;
}
} finally {
session.close();
}
return true;
}
我的配置和表類是正確的。這是測試課程;
public class Test {
public static void main(String[] args) {
// Test RegisterUser and GetUsersWithId in here
LogIn test = new LogIn();
Users user = new Users();
user.setUserEmail("email");
user.setUserAdress("adres here");
user.setUserFbId(3);
test.RegisterUsers(user);
}
}
這是堆棧跟蹤：
log4j:WARN No appenders could be found for logger (org.hibernate.cfg.Environment).
log4j:WARN Please initialize the log4j system properly.
could not insert: [tables.Users]
在調試模式下session.save（對象）運行我的測試程序;行給出異常，我的程序跳入catch塊。此外我的交易和會話不爲空。有兩個我的調試模式可以幫助圖片。
感謝您的幫助。
編輯3：編輯的堆棧跟蹤
Hibernate: insert into mobil.mobil.users (UserFbId, UserFbToken, UserName, UserLastName, UserEmail, UserAdress, UserFavouritedTopicsCount, UserCreatedTopicsCount, UserRecommendedTopicsCount, UserFollowingsCount, UserFollowersCount, UserBio, UserProfilePicUrl, UserIsOnline, UserPoint) values (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)
org.hibernate.exception.SQLGrammarException: could not insert: [tables.Users]
at org.hibernate.exception.SQLStateConverter.convert(SQLStateConverter.java:90)
at org.hibernate.exception.JDBCExceptionHelper.convert(JDBCExceptionHelper.java:66)
at org.hibernate.id.insert.AbstractReturningDelegate.performInsert(AbstractReturningDelegate.java:64)
at org.hibernate.persister.entity.AbstractEntityPersister.insert(AbstractEntityPersister.java:2176)
at org.hibernate.persister.entity.AbstractEntityPersister.insert(AbstractEntityPersister.java:2656)
at org.hibernate.action.EntityIdentityInsertAction.execute(EntityIdentityInsertAction.java:71)
at org.hibernate.engine.ActionQueue.execute(ActionQueue.java:279)
at org.hibernate.event.def.AbstractSaveEventListener.performSaveOrReplicate(AbstractSaveEventListener.java:321)
at org.hibernate.event.def.AbstractSaveEventListener.performSave(AbstractSaveEventListener.java:204)
at org.hibernate.event.def.AbstractSaveEventListener.saveWithGeneratedId(AbstractSaveEventListener.java:130)
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 DAO.LogIn.SaveDatabase(LogIn.java:55)
at DAO.LogIn.RegisterUsers(LogIn.java:16)
at Test.main(Test.java:14)
Caused by: com.mysql.jdbc.exceptions.jdbc4.MySQLSyntaxErrorException: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '.users (UserFbId, UserFbToken, UserName, UserLastName, UserEmail, UserAdress, Us' at line 1
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(Unknown Source)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(Unknown Source)
at java.lang.reflect.Constructor.newInstance(Unknown Source)
at com.mysql.jdbc.Util.handleNewInstance(Util.java:411)
at com.mysql.jdbc.Util.getInstance(Util.java:386)
at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:1053)
at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:4096)
at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:4028)
at com.mysql.jdbc.MysqlIO.sendCommand(MysqlIO.java:2490)
at com.mysql.jdbc.MysqlIO.sqlQueryDirect(MysqlIO.java:2651)
at com.mysql.jdbc.ConnectionImpl.execSQL(ConnectionImpl.java:2734)
at com.mysql.jdbc.PreparedStatement.executeInternal(PreparedStatement.java:2155)
at com.mysql.jdbc.PreparedStatement.executeUpdate(PreparedStatement.java:2458)
at com.mysql.jdbc.PreparedStatement.executeUpdate(PreparedStatement.java:2375)
at com.mysql.jdbc.PreparedStatement.executeUpdate(PreparedStatement.java:2359)
at org.hibernate.id.IdentityGenerator$GetGeneratedKeysDelegate.executeAndExtract(IdentityGenerator.java:94)
at org.hibernate.id.insert.AbstractReturningDelegate.performInsert(AbstractReturningDelegate.java:57)
... 18 more
Hibernate的配置。文件：
<?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 name="">
<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">diobookbla</property>
<property name="hibernate.connection.url">jdbc:mysql://localhost:3306/mobil</property>
<property name="hibernate.connection.username">root</property>
<property name="hibernate.default_schema">mobil</property>
<property name="hibernate.dialect">org.hibernate.dialect.MySQLDialect</property>
<property name="hibernate.search.autoregister_listeners">false</property>
<mapping class="tables.Users" resource="Users.hbm.xml" />
<mapping class="tables.Topicrecommend" resource="Topicrecommend.hbm.xml" />
<mapping class="tables.Posts" resource="Posts.hbm.xml" />
<mapping class="tables.Location" resource="Location.hbm.xml" />
<mapping class="tables.Topics" resource="Topics.hbm.xml" />
<mapping class="tables.Favouritetopics" resource="Favouritetopics.hbm.xml" />
<mapping class="tables.Postlike" resource="Postlike.hbm.xml" />
<mapping class="tables.Userfollow" resource="Userfollow.hbm.xml" />
<mapping class="tables.Mention" resource="Mention.hbm.xml" />
</session-factory>
</hibernate-configuration>
編輯2：Users.hbm.xml
<?xml version="1.0"?>
<!DOCTYPE hibernate-mapping PUBLIC "-//Hibernate/Hibernate Mapping DTD 3.0//EN"
"http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd">
<!-- Generated Dec 11, 2012 4:55:13 PM by Hibernate Tools 3.4.0.CR1 -->
<hibernate-mapping>
<class name="tables.Users" table="users" catalog="mobil">
<id name="userId" type="java.lang.Integer">
<column name="UserId" />
<generator class="identity" />
</id>
<property name="userFbId" type="java.lang.Integer">
<column name="UserFbId" />
</property>
<property name="userFbToken" type="string">
<column name="UserFbToken" />
</property>
<property name="userName" type="string">
<column name="UserName" />
</property>
<property name="userLastName" type="string">
<column name="UserLastName" />
</property>
<property name="userEmail" type="string">
<column name="UserEmail" />
</property>
<property name="userAdress" type="string">
<column name="UserAdress" />
</property>
<property name="userFavouritedTopicsCount" type="string">
<column name="UserFavouritedTopicsCount" />
</property>
<property name="userCreatedTopicsCount" type="string">
<column name="UserCreatedTopicsCount" />
</property>
<property name="userRecommendedTopicsCount" type="string">
<column name="UserRecommendedTopicsCount" />
</property>
<property name="userFollowingsCount" type="java.lang.Integer">
<column name="UserFollowingsCount" />
</property>
<property name="userFollowersCount" type="java.lang.Integer">
<column name="UserFollowersCount" />
</property>
<property name="userBio" type="string">
<column name="UserBio" />
</property>
<property name="userProfilePicUrl" type="string">
<column name="UserProfilePicUrl" />
</property>
<property name="userIsOnline" type="java.lang.Boolean">
<column name="UserIsOnline" />
</property>
<property name="userPoint" type="java.lang.Integer">
<column name="UserPoint" />
</property>
<set name="topicses" table="topics" inverse="true" lazy="true" fetch="select">
<key>
<column name="TopicUserId" />
</key>
<one-to-many class="tables.Topics" />
</set>
<set name="mentionsForMentionedId" table="mention" inverse="true" lazy="true" fetch="select">
<key>
<column name="MentionedId" />
</key>
<one-to-many class="tables.Mention" />
</set>
<set name="favouritetopicses" table="favouritetopics" inverse="true" lazy="true" fetch="select">
<key>
<column name="UserId" />
</key>
<one-to-many class="tables.Favouritetopics" />
</set>
<set name="mentionsForMentionerId" table="mention" inverse="true" lazy="true" fetch="select">
<key>
<column name="MentionerId" />
</key>
<one-to-many class="tables.Mention" />
</set>
<set name="postlikes" table="postlike" inverse="true" lazy="true" fetch="select">
<key>
<column name="UserId" />
</key>
<one-to-many class="tables.Postlike" />
</set>
<set name="userfollowsForFollowingId" table="userfollow" inverse="true" lazy="true" fetch="select">
<key>
<column name="FollowingId" />
</key>
<one-to-many class="tables.Userfollow" />
</set>
<set name="topicrecommends" table="topicrecommend" inverse="true" lazy="true" fetch="select">
<key>
<column name="UserId" />
</key>
<one-to-many class="tables.Topicrecommend" />
</set>
<set name="userfollowsForFollowerId" table="userfollow" inverse="true" lazy="true" fetch="select">
<key>
<column name="FollowerId" />
</key>
<one-to-many class="tables.Userfollow" />
</set>
</class>
</hibernate-mapping>
這是SQLGrammarException，查詢有問題。可能是e.printStackTrace（）將提供更多信息。 – kosa
你在休眠中配置pojo映射xml嗎？發佈配置文件。 – Jason
我已經添加了stacktrace和Hibernate.config.xml –