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POHibernate mapping exception: unknown entity
 

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  1. POHibernate mapping exception: unknown entity
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    <p>I am new to Java and just started learning Hibernate from an online tutorial. I have created java code with Hibernate but after that i have been failing to test run. I have database table "users" in MySQL Database "test". when i try to insert a record it gives me this error. Cant find the exact reason..</p> <p>Stack:</p> <pre><code> 710 [main] INFO org.hibernate.impl.SessionFactoryObjectFactory - Not binding factory to JNDI, no JNDI name configured org.hibernate.MappingException: Unknown entity: in.shivasoft.pojo.Users at org.hibernate.impl.SessionFactoryImpl.getEntityPersister(SessionFactoryImpl.java:580) at org.hibernate.impl.SessionImpl.getEntityPersister(SessionImpl.java:1365) at org.hibernate.event.def.AbstractSaveEventListener.saveWithGeneratedId(AbstractSaveEventListener.java:121) 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:562) at org.hibernate.impl.SessionImpl.save(SessionImpl.java:550) at org.hibernate.impl.SessionImpl.save(SessionImpl.java:546) at in.shivasoft.test.TestMain.saveRecord(TestMain.java:33) at in.shivasoft.test.TestMain.main(TestMain.java:19) </code></pre> <hr> <pre><code> my Users.hbm.xml &lt;?xml version="1.0" encoding="UTF-8"?&gt; &lt;!DOCTYPE hibernate-mapping PUBLIC "-//Hibernate/Hibernate Mapping DTD 3.0//EN" "http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd" &gt; &lt;hibernate-mapping&gt; &lt;class entity-name="Users" name="in.shivasoft.pojo.Users" table="Users"&gt; &lt;meta attribute="description"&gt;This class is used to save the info about users&lt;/meta&gt; &lt;id column="UserId" name="UserId" type="long"/&gt; &lt;property column="FName" name="FName" type="string"/&gt; &lt;property column="LName" name="LName" type="string"/&gt; &lt;property column="UserTypeId" name="UserTypeId" type="long"/&gt; &lt;property column="UserName" name="UserName" type="string"/&gt; &lt;property column="Email" name="Email" type="string"/&gt; &lt;property column="Pwd" name="Pwd" type="string"/&gt; &lt;property column="Note" name="Note" type="string"/&gt; &lt;property column="IsActive" name="IsActive" type="boolean"/&gt; &lt;/class&gt; &lt;/hibernate-mapping&gt; </code></pre> <hr> <p>Hibernate Configuration(hibernate.cfg.xml</p> <pre><code>&lt;?xml version="1.0" encoding="UTF-8"?&gt; &lt;!DOCTYPE hibernate-configuration PUBLIC "-//Hibernate/Hibernate Configuration DTD 3.0//EN" "http://hibernate.sourceforge.net/hibernate-configuration-3.0.dtd"&gt; &lt;hibernate-configuration&gt; &lt;session-factory&gt; &lt;property name="hibernate.connection.driver_class"&gt;org.gjt.mm.mysql.Driver&lt;/property&gt; &lt;property name="hibernate.connection.password"&gt;1234&lt;/property&gt; &lt;property name="hibernate.connection.url"&gt;jdbc:mysql://localhost/test&lt;/property&gt; &lt;property name="hibernate.connection.username"&gt;root&lt;/property**strong text**&gt; &lt;property name="hibernate.dialect"&gt;org.hibernate.dialect.MySQL5InnoDBDialect&lt;/property&gt; &lt;mapping resource="in/shivasoft/pojo/Users.hbm.xml"/&gt; &lt;/session-factory&gt; &lt;/hibernate-configuration&gt; </code></pre> <hr> <p>This is Entity class created by Hibernate code Generation</p> <pre><code>package in.shivasoft.pojo; // Generated Sep 27, 2013 11:48:09 AM by Hibernate Tools 4.0.0 /** * Users generated by hbm2java */ public class Users implements java.io.Serializable { private long UserId; private String FName; private String LName; private long UserTypeId; private String UserName; private String Email; private String Pwd; private String Note; private boolean IsActive; public Users() { } public Users(long UserId) { this.UserId = UserId; } public Users(long UserId, String FName, String LName, long UserTypeId, String UserName, String Email, String Pwd, String Note, boolean IsActive) { this.UserId = UserId; this.FName = FName; this.LName = LName; this.UserTypeId = UserTypeId; this.UserName = UserName; this.Email = Email; this.Pwd = Pwd; this.Note = Note; this.IsActive = IsActive; } public long getUserId() { return this.UserId; } public void setUserId(long UserId) { this.UserId = UserId; } public String getFName() { return this.FName; } public void setFName(String FName) { this.FName = FName; } public String getLName() { return this.LName; } public void setLName(String LName) { this.LName = LName; } public long getUserTypeId() { return this.UserTypeId; } public void setUserTypeId(long UserTypeId) { this.UserTypeId = UserTypeId; } public String getUserName() { return this.UserName; } public void setUserName(String UserName) { this.UserName = UserName; } public String getEmail() { return this.Email; } public void setEmail(String Email) { this.Email = Email; } public String getPwd() { return this.Pwd; } public void setPwd(String Pwd) { this.Pwd = Pwd; } public String getNote() { return this.Note; } public void setNote(String Note) { this.Note = Note; } public boolean isIsActive() { return this.IsActive; } public void setIsActive(boolean IsActive) { this.IsActive = IsActive; } } </code></pre> <p>This is my TestMain.Java</p> <pre><code>package in.shivasoft.test; import in.shivasoft.pojo.Users; import in.shivasoft.util.HibernateUtil; import java.util.List; import org.hibernate.Session; import org.hibernate.Transaction; public class TestMain { /** * @param args */ public static void main(String[] args) { TestMain obj = new TestMain(); obj.saveRecord(); obj.getList(); } public void saveRecord() { Users u = new Users(0, "Jitendra", "Zaa", 1, "jitendra.zaa", "jitendra.zaa@shivasoft.in", "test", "this is note", true); Session session = HibernateUtil.getSessionFactory().openSession(); Transaction transaction = null; try { transaction = session.beginTransaction(); session.save(u); transaction.commit(); System.out.println("Data Saved"); }catch(Exception e) { e.printStackTrace(); }finally{session.close();} } public void updateUser(long UserId) { Session session = HibernateUtil.getSessionFactory().openSession(); Transaction transaction = null; try { transaction = session.beginTransaction(); Users u = (Users)session.get(Users.class,UserId); u.setFName("ShivaSoft"); transaction.commit(); System.out.println("Data Updated"); } catch(Exception e) { e.printStackTrace(); } finally{ session.close(); } } public void getList() { Session session = HibernateUtil.getSessionFactory().openSession(); Transaction transaction = null; try { transaction = session.beginTransaction(); List&lt;Users&gt; uList = List&lt;Users&gt; uList = Session.createCriteria(Users.class).list(); for(Users u : uList) { System.out.println("First Name - "+u.getFName()); } } catch(Exception e) { e.printStackTrace(); } finally{ session.close(); } } } </code></pre> <hr> <p>This is log for session Factory Dont know if there is problem with it.. </p> <pre><code>10 [main] INFO org.hibernate.cfg.Environment - Hibernate 3.3.1.GA 13 [main] INFO org.hibernate.cfg.Environment - loaded properties from resource hibernate.properties: {hibernate.bytecode.use_reflection_optimizer=false} 15 [main] INFO org.hibernate.cfg.Environment - Bytecode provider name : javassist 19 [main] INFO org.hibernate.cfg.Environment - using JDK 1.4 java.sql.Timestamp handling 61 [main] INFO org.hibernate.cfg.Configuration - configuring from resource: /hibernate.cfg.xml 61 [main] INFO org.hibernate.cfg.Configuration - Configuration resource: /hibernate.cfg.xml 128 [main] INFO org.hibernate.cfg.Configuration - Reading mappings from resource : in/shivasoft/pojo/Users.hbm.xml 197 [main] INFO org.hibernate.cfg.HbmBinder - Mapping class: Users -&gt; users 208 [main] INFO org.hibernate.cfg.Configuration - Configured SessionFactory: null 256 [main] INFO org.hibernate.connection.DriverManagerConnectionProvider - Using Hibernate built-in connection pool (not for production use!) 256 [main] INFO org.hibernate.connection.DriverManagerConnectionProvider - Hibernate connection pool size: 20 256 [main] INFO org.hibernate.connection.DriverManagerConnectionProvider - autocommit mode: false 262 [main] INFO org.hibernate.connection.DriverManagerConnectionProvider - using driver: org.gjt.mm.mysql.Driver at URL: jdbc:mysql://localhost/test 262 [main] INFO org.hibernate.connection.DriverManagerConnectionProvider - connection properties: {user=root, password=****} 499 [main] INFO org.hibernate.cfg.SettingsFactory - RDBMS: MySQL, version: 5.6.14-log 499 [main] INFO org.hibernate.cfg.SettingsFactory - JDBC driver: MySQL-AB JDBC Driver, version: mysql-connector-java-5.1.0 ( $Date: 2007-04-05 23:56:05 +0200 (Thu, 05 Apr 2007) $, $Revision: 6376 $ ) 515 [main] INFO org.hibernate.dialect.Dialect - Using dialect: org.hibernate.dialect.MySQL5InnoDBDialect 518 [main] INFO org.hibernate.transaction.TransactionFactoryFactory - Using default transaction strategy (direct JDBC transactions) 519 [main] INFO org.hibernate.transaction.TransactionManagerLookupFactory - No TransactionManagerLookup configured (in JTA environment, use of read-write or transactional second-level cache is not recommended) 519 [main] INFO org.hibernate.cfg.SettingsFactory - Automatic flush during beforeCompletion(): disabled 519 [main] INFO org.hibernate.cfg.SettingsFactory - Automatic session close at end of transaction: disabled 520 [main] INFO org.hibernate.cfg.SettingsFactory - JDBC batch size: 15 520 [main] INFO org.hibernate.cfg.SettingsFactory - JDBC batch updates for versioned data: disabled 520 [main] INFO org.hibernate.cfg.SettingsFactory - Scrollable result sets: enabled 520 [main] INFO org.hibernate.cfg.SettingsFactory - JDBC3 getGeneratedKeys(): enabled 520 [main] INFO org.hibernate.cfg.SettingsFactory - Connection release mode: auto 521 [main] INFO org.hibernate.cfg.SettingsFactory - Maximum outer join fetch depth: 2 521 [main] INFO org.hibernate.cfg.SettingsFactory - Default batch fetch size: 1 521 [main] INFO org.hibernate.cfg.SettingsFactory - Generate SQL with comments: disabled 521 [main] INFO org.hibernate.cfg.SettingsFactory - Order SQL updates by primary key: disabled 521 [main] INFO org.hibernate.cfg.SettingsFactory - Order SQL inserts for batching: disabled 521 [main] INFO org.hibernate.cfg.SettingsFactory - Query translator: org.hibernate.hql.ast.ASTQueryTranslatorFactory 523 [main] INFO org.hibernate.hql.ast.ASTQueryTranslatorFactory - Using ASTQueryTranslatorFactory 523 [main] INFO org.hibernate.cfg.SettingsFactory - Query language substitutions: {} 523 [main] INFO org.hibernate.cfg.SettingsFactory - JPA-QL strict compliance: disabled 523 [main] INFO org.hibernate.cfg.SettingsFactory - Second-level cache: enabled 523 [main] INFO org.hibernate.cfg.SettingsFactory - Query cache: disabled 523 [main] INFO org.hibernate.cfg.SettingsFactory - Cache region factory : org.hibernate.cache.impl.NoCachingRegionFactory 523 [main] INFO org.hibernate.cfg.SettingsFactory - Optimize cache for minimal puts: disabled 523 [main] INFO org.hibernate.cfg.SettingsFactory - Structured second-level cache entries: disabled 527 [main] INFO org.hibernate.cfg.SettingsFactory - Statistics: disabled 528 [main] INFO org.hibernate.cfg.SettingsFactory - Deleted entity synthetic identifier rollback: disabled 528 [main] INFO org.hibernate.cfg.SettingsFactory - Default entity-mode: pojo 528 [main] INFO org.hibernate.cfg.SettingsFactory - Named query checking : enabled 568 [main] INFO org.hibernate.impl.SessionFactoryImpl - building session factory 737 [main] INFO org.hibernate.impl.SessionFactoryObjectFactory - Not binding factory to JNDI, no JNDI name configured </code></pre>
    singulars
    1. PO
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      1. PTAnswer
    1. This table or related slice is empty.
    1. PTQuestion
    1. USCœur
    1. USAli Asad
    plurals
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. PO
      singulars
      1. PTAnswer
    1. This table or related slice is empty.
    1. COIs your package declaration correct, need TestMain.java snippet as well to check!
      singulars
      1. POHibernate mapping exception: unknown entity
      1. USaksappy
    2. COWhat happening if you try to select records? Try before saving `session.getCriteria(Users.class).list();`
      singulars
      1. POHibernate mapping exception: unknown entity
      1. USsmajlo
    3. COtry `session.persist(u);` instead of save.
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      1. POHibernate mapping exception: unknown entity
      1. USsmajlo
 

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