John, Are you behind a proxy?
Double-check that you can access the DTD from your system. You might consider changing your DOCTYPE to reference the DTD contained in your Hibernate.jar (i.e. from PUBLIC to SYSTEM) so it won't try to look things up remotely. Best, Jeff ________________________________ From: john lee <sh_thorn_b...@yahoo.com> To: "user@struts.apache.org" <user@struts.apache.org> Sent: Friday, December 14, 2012 1:46 PM Subject: struts2+hiberate org.hibernate.cfg.Configuration i am new to struts2+hiberate, i can successfuly make struts2 sample project working, but not hiberate, i just make an simple test program, and compile is good, but when execute, the error is at following, the project tree is also include please help, thanks in advance alpha:/var/apache-tomcat-7.0.34/webapps/ecommerce/WEB-INF/classes # java Test Dec 14, 2012 2:56:28 PM org.hibernate.cfg.Configuration getConfigurationInputStream INFO: HHH000040: Configuration resource: /hibernate.cfg.xml Exception in thread "main" org.hibernate.MappingException: invalid configuration at org.hibernate.cfg.Configuration.doConfigure(Configuration.java:2018) at org.hibernate.cfg.Configuration.configure(Configuration.java:1935) at org.hibernate.cfg.Configuration.configure(Configuration.java:1914) at Test.main(Test.java:12) Caused by: org.xml.sax.SAXParseException: Document is invalid: no grammar found. at com.sun.org.apache.xerces.internal.util.ErrorHandlerWrapper.createSAXParseException(ErrorHandlerWrapper.java:195) alpha:/var/apache-tomcat-7.0.34/webapps/ecommerce/WEB-INF # ls -R .: classes compile.sh lib src web.xml ./classes: Student.hbm.xml Test.class example hibernate.cfg.xml struts.xml ./classes/example: Student.class ./lib: commons-fileupload-1.2.2.jar freemarker-2.3.19.jar ognl-3.0.5.jar commons-io-2.0.1.jar hibernate-commons-annotations-4.0.1.Final.jar spring-test-3.0.5.RELEASE.jar commons-lang-2.4.jar hibernate-core-4.1.8.Final.jar struts2-core-2.3.7.jar commons-lang3-3.1.jar javassist-3.11.0.GA.jar xwork-core-2.3.7.jar commons-logging-1.1.1.jar jboss-logging-3.1.0.GA.jar dom4j-1.6.1.jar jboss-transaction-api_1.1_spec-1.0.0.Final.jar ./src: example ./src/example: Student.java Test.java ********************************************* alpha:/var/apache-tomcat-7.0.34/webapps/ecommerce/WEB-INF/classes # cat Student.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="example.Student" table="student"> <id name="studentId" column="student_id"> <generator class="increment" /> </id> <property name="firstName" type="string" column="first_name" /> <property name="lastName" type="string" column="last_name" /> <property name="address" type="string" column="address" /> </class> </hibernate-mapping> alpha:/var/apache-tomcat-7.0.34/webapps/ecommerce/WEB-INF/classes # cat hibernate.cfg.xml <hibernate-configuration> <session-factory> <property name="connection.driver_class">com.mysql.jdbc.Driver</property> <property name="connection.url">jdbc:mysql://10.1.1.37/mytest</property> <property name="connection.username">test</property> <property name="connection.password">password</property> <property name="dialect">org.hibernate.dialect.MySQLInnoDBDialect</property> <property name="show_sql">true</property> <mapping resource="Student.hbm.xml"/> </session-factory> </hibernate-configuration> alpha:/var/apache-tomcat-7.0.34/webapps/ecommerce/WEB-INF/src/example # cat Test.java import org.hibernate.Session; import example.Student; import org.hibernate.SessionFactory; import org.hibernate.cfg.Configuration; public class Test { public static void main(String[] args) { //Session session = HibernateUtil.getSessionFactory().getCurrentSession(); Configuration conf=new Configuration().configure(); SessionFactory sf=conf.buildSessionFactory(); Session session=sf.openSession(); session.beginTransaction(); Student s = new Student("firstname", "lastname", "address"); session.save(s); session.getTransaction().commit(); } } mysql> desc student; +------------+---------------------+------+-----+---------+----------------+ | Field | Type | Null | Key | Default | Extra | +------------+---------------------+------+-----+---------+----------------+ | student_id | bigint(10) unsigned | NO | PRI | NULL | auto_increment | | first_name | varchar(50) | YES | | NULL | | | last_name | varchar(50) | YES | | NULL | | | address | varchar(50) | YES | | NULL | | +------------+---------------------+------+-----+---------+----------------+ 4 rows in set (0.00 sec)