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POHow to integrate struts2 with Hibernate
 

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  1. POHow to integrate struts2 with Hibernate
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    <p>I am badly stuck integrating struts2 with Hibernate.</p> <p>I am using netbeans 7.1.2</p> <p>I have a very simple Java EE project which displays all the rows of a table "QUESTION" in the Derby (Java DB) database. I have made the table and mapped it to the hibernate.cfg.xml file.</p> <p>But when i right click and go to 'Run HQL Query' and execute the query</p> <p>"from Question", I get the following error:</p> <pre><code>org.hibernate.exception.SQLGrammarException: could not execute query at org.hibernate.exception.SQLStateConverter.convert(SQLStateConverter.java:67) at org.hibernate.exception.JDBCExceptionHelper.convert(JDBCExceptionHelper.java:43) at org.hibernate.loader.Loader.doList(Loader.java:2223) at org.hibernate.loader.Loader.listIgnoreQueryCache(Loader.java:2104) at org.hibernate.loader.Loader.list(Loader.java:2099) at org.hibernate.loader.hql.QueryLoader.list(QueryLoader.java:378) at org.hibernate.hql.ast.QueryTranslatorImpl.list(QueryTranslatorImpl.java:338) at org.hibernate.engine.query.HQLQueryPlan.performList(HQLQueryPlan.java:172) at org.hibernate.impl.SessionImpl.list(SessionImpl.java:1121) at org.hibernate.impl.QueryImpl.list(QueryImpl.java:79) Caused by: java.sql.SQLSyntaxErrorException: Table/View 'RAMBO.QUESTION' does not exist. at org.apache.derby.client.am.SQLExceptionFactory40.getSQLException(Unknown Source) at org.apache.derby.client.am.SqlException.getSQLException(Unknown Source) at org.apache.derby.client.am.Connection.prepareStatement(Unknown Source) at org.hibernate.jdbc.AbstractBatcher.getPreparedStatement(AbstractBatcher.java:505) at org.hibernate.jdbc.AbstractBatcher.getPreparedStatement(AbstractBatcher.java:423) at org.hibernate.jdbc.AbstractBatcher.prepareQueryStatement(AbstractBatcher.java:139) at org.hibernate.loader.Loader.prepareQueryStatement(Loader.java:1547) at org.hibernate.loader.Loader.doQuery(Loader.java:673) at org.hibernate.loader.Loader.doQueryAndInitializeNonLazyCollections(Loader.java:236) at org.hibernate.loader.Loader.doList(Loader.java:2220) ... 9 more Caused by: org.apache.derby.client.am.SqlException: Table/View 'RAMBO.QUESTION' does not exist. at org.apache.derby.client.am.Statement.completeSqlca(Unknown Source) at org.apache.derby.client.net.NetStatementReply.parsePrepareError(Unknown Source) at org.apache.derby.client.net.NetStatementReply.parsePRPSQLSTTreply(Unknown Source) at org.apache.derby.client.net.NetStatementReply.readPrepareDescribeOutput(Unknown Source) at org.apache.derby.client.net.StatementReply.readPrepareDescribeOutput(Unknown Source) at org.apache.derby.client.net.NetStatement.readPrepareDescribeOutput_(Unknown Source) at org.apache.derby.client.am.Statement.readPrepareDescribeOutput(Unknown Source) at org.apache.derby.client.am.PreparedStatement.readPrepareDescribeInputOutput(Unknown Source) at org.apache.derby.client.am.PreparedStatement.flowPrepareDescribeInputOutput(Unknown Source) at org.apache.derby.client.am.PreparedStatement.prepare(Unknown Source) at org.apache.derby.client.am.Connection.prepareStatementX(Unknown Source) ... 17 more </code></pre> <p>My Hibernate.cfg.xml file:</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.dialect"&gt;org.hibernate.dialect.DerbyDialect&lt;/property&gt; &lt;property name="hibernate.connection.driver_class"&gt;org.apache.derby.jdbc.ClientDriver&lt;/property&gt; &lt;property name="hibernate.connection.url"&gt;jdbc:derby://localhost:1527/Q4U&lt;/property&gt; &lt;property name="hibernate.connection.username"&gt;rambo&lt;/property&gt; &lt;property name="hibernate.connection.password"&gt;ho&lt;/property&gt; &lt;property name="hibernate.current_session_context_class"&gt;thread&lt;/property&gt; &lt;mapping resource="hibernate.hbm.xml"/&gt; &lt;mapping/&gt; &lt;/session-factory&gt; &lt;/hibernate-configuration&gt; </code></pre> <p>My Hibernate.hbm.xml file:</p> <pre><code>&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 name="beans.Question" table="RAMBO.QUESTION"&gt; &lt;id name="qid" type="java.lang.Integer"&gt; &lt;column name="QID" /&gt; &lt;generator class="increment" /&gt; &lt;/id&gt; &lt;property name="opc" type="java.lang.Integer"&gt; &lt;column name="OPC" not-null="true"/&gt; &lt;/property&gt; &lt;property name="uid" type="java.lang.Integer"&gt; &lt;column name="UID" not-null="true"/&gt; &lt;/property&gt; &lt;property name="cid" type="java.lang.Integer"&gt; &lt;column name="CID" not-null="true"/&gt; &lt;/property&gt; &lt;property name="abuse" type="java.lang.Integer"&gt; &lt;column name="ABUSE" not-null="true"/&gt; &lt;/property&gt; &lt;property name="accuracy" type="java.lang.Float"&gt; &lt;column name="ACCURACY" not-null="true"/&gt; &lt;/property&gt; &lt;property name="poston" type="java.util.Date"&gt; &lt;column name="POSTON" not-null="true"/&gt; &lt;/property&gt; &lt;property name="body" type="java.lang.String"&gt; &lt;column name="BODY" not-null="true"/&gt; &lt;/property&gt; &lt;property name="op1" type="java.lang.String"&gt; &lt;column name="OP1" not-null="true"/&gt; &lt;/property&gt; &lt;property name="op2" type="java.lang.String"&gt; &lt;column name="OP2" not-null="true"/&gt; &lt;/property&gt; &lt;property name="op3" type="java.lang.String"&gt; &lt;column name="OP3" not-null="true"/&gt; &lt;/property&gt; &lt;property name="op4" type="java.lang.String"&gt; &lt;column name="OP4" not-null="true"/&gt; &lt;/property&gt; &lt;property name="op5" type="java.lang.String"&gt; &lt;column name="OP5" not-null="true"/&gt; &lt;/property&gt; &lt;property name="cname" type="java.lang.String"&gt; &lt;column name="CNAME" not-null="true"/&gt; &lt;/property&gt; &lt;/class&gt; &lt;/hibernate-mapping&gt; </code></pre> <p>Hibernate.reveng.xml file :</p> <pre><code>&lt;?xml version="1.0" encoding="UTF-8"?&gt; &lt;!DOCTYPE hibernate-reverse-engineering PUBLIC "-//Hibernate/Hibernate Reverse Engineering DTD 3.0//EN" "http://hibernate.sourceforge.net/hibernate-reverse-engineering-3.0.dtd"&gt; &lt;hibernate-reverse-engineering&gt; &lt;schema-selection match-schema="RAMBO"/&gt; &lt;table-filter match-name="USERS"/&gt; &lt;table-filter match-name="CATEGORY"/&gt; &lt;table-filter match-name="TESTS"/&gt; &lt;table-filter match-name="INBOX"/&gt; &lt;table-filter match-name="QUESTION"/&gt; &lt;table-filter match-name="ADMIN"/&gt; &lt;/hibernate-reverse-engineering&gt; </code></pre> <p>Question.java</p> <pre><code>package beans; import java.io.Serializable; import java.util.Date; public class Question implements Serializable { int qid, opc, uid, cid, abuse; float accuracy; Date poston; String body, op1, op2, op3, op4, op5, cname; // Also public getters and setters } </code></pre> <p>FindQuestion.java</p> <pre><code>package controller; import beans.Question; import com.opensymphony.xwork2.ActionSupport; import java.util.ArrayList; import java.util.List; import org.hibernate.Session; public class FindQuestion extends ActionSupport { private List questionList = new ArrayList(); @Override public String execute() throws Exception { try { Session session = HibernateUtil.getSessionFactory().getCurrentSession(); session.beginTransaction(); this.questionList = (List&lt;Question&gt;) session.createQuery("from Question"); session.getTransaction().commit(); } catch (Exception e) { } return SUCCESS; } } </code></pre>
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    1. USQuaternion
    1. UScodeofnode
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    1. COHave you tried changing `table="RAMBO.QUESTION"` to `table="QUESTION"`?
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      1. POHow to integrate struts2 with Hibernate
      1. USSteven Benitez
    2. COpossible duplicate of [Got badly stuck in integrating struts2 with hibernate](http://stackoverflow.com/questions/11341878/got-badly-stuck-in-integrating-struts2-with-hibernate)
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      1. POHow to integrate struts2 with Hibernate
      1. USDave Newton
    3. COPlease don't post the same question twice.
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      1. POHow to integrate struts2 with Hibernate
      1. USDave Newton
 

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