Could not parse mapping document from resource developerhelpway/hibernate/employee.hbm.xml

[sathish sathyamangalam]

Hi

i am new to hibernate. i have did one small hibernate application for store employee name and salary in mysql database.

here i have mention the following files

1. configuration file
2. mapping file
3. main file
4. error message
5. pojo class

hibernate.cfg.xml
<?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE hibernate-configuration PUBLIC "-//Hibernate/Hibernate Configuration DTD//EN" "http://hibernate.sourceforge.net/hibernate-configuration-3.0.dtd"> <hibernate-configuration> <session-factory> <property name="hibernate.connection.driver_class">com.mysql.jdbc.Driver</property> <property name="hibernate.connection.url">jdbc:mysql://localhost/hibernateexamples</property> <property name="hibernate.connection.username">root</property> <property name="hibernate.connection.password"></property> <property name="hibernate.connection.pool_size">10</property> <property name="hibernate.jdbc.batch_size">10</property> <property name="show_sql">true</property> <property name="dialect">org.hibernate.dialect.MySQLDialect</property> <property name="hibernate.hbm2ddl.auto">update</property> <mapping resource="developerhelpway/hibernate/employee.hbm.xml" /> </session-factory> </hibernate-configuration>
employee.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"> <hibernate-mapping> <class name="developerhelpway.hibernate.Employee" table="employee"> <id name="empId" type="int" column="emp_id" > <generator class="increment"/> </id> <property name="empName"> <column name="emp_name" /> </property> <property name="empSal"> <column name="emp_sal" /> </property> </class> </hibernate-mapping>
Emploree.java

package developerhelpway.hibernate;

public class Employee {

	private int empId;
	private String empName;
	private int empSal;

	public int getEmpId() {
		return empId;
	}
	public void setEmpId(int empId) {
		this.empId = empId;
	}
	public String getEmpName() {
		return empName;
	}
	public void setEmpName(String empName) {
		this.empName = empName;
	}
	public int getEmpSal() {
		return empSal;
	}
	public void setEmpSal(int empSal) {
		this.empSal = empSal;
	}

}

main file

package developerhelpway.hibernate;

import org.hibernate.Session;
import org.hibernate.SessionFactory;
import org.hibernate.Transaction;
import org.hibernate.cfg.Configuration;

public class FirstExample {

/**
* @param args
*/
public static void main(String[] args) {
// TODO Auto-generated method stub

Session sess = null;
Transaction tran = null;
try{
SessionFactory sessFact = new Configuration().configure().buildSessionFactory();
sess = sessFact.openSession();
System.out.println("Session: "+ sess);
tran = sess.beginTransaction();
Employee emp = new Employee();
emp.setEmpName("Birendra Kumar");
emp.setEmpSal(12000);
sess.save(emp);
tran.commit();
}
catch(Exception ex){
ex.printStackTrace();
}
finally{
sess.close();
}
}
}

error message
Jan 4, 2012 1:02:28 PM org.hibernate.cfg.Environment <clinit>
INFO: Hibernate 3.2.1
Jan 4, 2012 1:02:28 PM org.hibernate.cfg.Environment <clinit>
INFO: hibernate.properties not found
Jan 4, 2012 1:02:28 PM org.hibernate.cfg.Environment buildBytecodeProvider
INFO: Bytecode provider name : cglib
Jan 4, 2012 1:02:28 PM org.hibernate.cfg.Environment <clinit>
INFO: using JDK 1.4 java.sql.Timestamp handling
Jan 4, 2012 1:02:28 PM org.hibernate.cfg.Configuration configure
INFO: configuring from resource: /hibernate.cfg.xml
Jan 4, 2012 1:02:28 PM org.hibernate.cfg.Configuration getConfigurationInputStream
INFO: Configuration resource: /hibernate.cfg.xml
Jan 4, 2012 1:02:28 PM org.hibernate.cfg.Configuration addResource
INFO: Reading mappings from resource : developerhelpway/hibernate/employee.hbm.xml
org.hibernate.InvalidMappingException: Could not parse mapping document from resource developerhelpway/hibernate/employee.hbm.xml
at org.hibernate.cfg.Configuration.addResource(Configuration.java:569)
at org.hibernate.cfg.Configuration.parseMappingElement(Configuration.java:1584)
at org.hibernate.cfg.Configuration.parseSessionFactory(Configuration.java:1552)
at org.hibernate.cfg.Configuration.doConfigure(Configuration.java:1531)
at org.hibernate.cfg.Configuration.doConfigure(Configuration.java:1505)
at org.hibernate.cfg.Configuration.configure(Configuration.java:1425)
at org.hibernate.cfg.Configuration.configure(Configuration.java:1411)
at developerhelpway.hibernate.FirstExample.main(FirstExample.java:19)
Caused by: org.hibernate.InvalidMappingException: Could not parse mapping document from input stream
at org.hibernate.cfg.Configuration.addInputStream(Configuration.java:508)
at org.hibernate.cfg.Configuration.addResource(Configuration.java:566)
... 7 more
Caused by: org.dom4j.DocumentException: http://hibernate.sourceforge.net/%0Ahibernate-mapping-3.0.dtd Nested exception: http://hibernate.sourceforge.net/%0Ahibernate-mapping-3.0.dtd
at org.dom4j.io.SAXReader.read(SAXReader.java:484)
at org.hibernate.cfg.Configuration.addInputStream(Configuration.java:499)
... 8 more
Exception in thread "main" java.lang.NullPointerException
at developerhelpway.hibernate.FirstExample.main(FirstExample.java:33)

Please any one help me to find the issue.. Thanks in advance

[Aditi Tervankar]

Hi ,
Please use below in your DTD declaration , i had faced same issue and this resolved the same.

<!DOCTYPE hibernate-mapping PUBLIC
"-//Hibernate/Hibernate Mapping DTD 3.0//EN"
"http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd">

Please make sure no spaces present in this line "http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd">


Thanks,
Aditi