我收到错误：线程“主”org.hibernate.HibernateException中的异常：无法解析配置：hibernate.cfg.xml

Question

我得到了这个异常

Exception in thread "main" org.hibernate.HibernateException: Could not parse      configuration: hibernate.cfg.xml
at org.hibernate.cfg.Configuration.doConfigure(Configuration.java:1491)
at org.hibernate.cfg.Configuration.configure(Configuration.java:1425)
at com.jwt.hibernate.SimpleTest.main(SimpleTest.java:13)
Caused by: org.dom4j.DocumentException: www.hibernate.org Nested exception: www.hibernate.org
at org.dom4j.io.SAXReader.read(SAXReader.java:484)
at org.hibernate.cfg.Configuration.doConfigure(Configuration.java:1481)

我的 hibernate.cfg 文件是

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE hibernate-configuration PUBLIC
"-//Hibernate/Hibernate Configuration DTD 3.0//EN"
"http://www.hibernate.org/dtd/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:3006/mydb</property>
<property name="hibernate.connection.username">root</property>
<property name="hibernate.connection.password"></property>
<property  name="hibernate.dialect">org.hibernate.dialect.MySQLDialect</property>
<property name="show_sql">true</property>
<property name="format_sql">true</property>
<property name="hbm2ddl.auto">create</property> 
<mapping resource="com/jwt/hibernate/student.hbm.xml" />
</session-factory>
</hibernate-configuration>

我的映射文件是：

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE hibernate-mapping PUBLIC "-//Hibernate/Hibernate Mapping DTD 3.0//EN" "http://www.hibernate.org/dtd/hibernate-mapping-3.0.dtd">
<hibernate-mapping>
<class name="com.jwt.hibernate.Student" table="STUDENT">
<id column="ID" name="id" type="int" />
<property column="STUDENT_NAME" name="name" type="string" />
<property column="DEGREE" name="degree" type="string" />
<property column="ROLL" name="roll" type="string" />
<property column="PHONE" name="phone" type="string" />
</class>
</hibernate-mapping>

我的 Bean 类是：

public class Student {
    private int id;
    private String name;
    private String degree;
    private String roll;
    private String phone;
    /** Getters and setters omitted **/
}

我的测试员课程是：

public class SimpleTest {

  public static void main(String[] args) {

    Configuration cfg = new Configuration();
    cfg.configure("hibernate.cfg.xml");
    SessionFactory factory = cfg.buildSessionFactory();
    Session session = factory.openSession();
    Student student = new Student();
    student.setName("Gourab");
    student.setRoll("101");
    student.setPhone("8888");
    student.setDegree("B.E");

    Transaction tx = session.beginTransaction();
    session.save(student);
    System.out.println("Object saved successfully.....!!");
    tx.commit();
    session.close();
    factory.close();
  }
}

My Folder Structure is

我已经添加了连接到 hibernate 和 mysql 所需的所有 jar（例如 hibernate-core 3.8.9.Final.jar、mysql-connector-java-5.1.12-bin.jar） 但我仍然收到错误消息。 请帮帮我。 提前致谢

全栈跟踪：

Exception in thread "main" org.hibernate.HibernateException: Could not parse    configuration: hibernate.cfg.xml
at org.hibernate.cfg.Configuration.doConfigure(Configuration.java:1491)
at org.hibernate.cfg.Configuration.configure(Configuration.java:1425)
at com.jwt.hibernate.SimpleTest.main(SimpleTest.java:12)
Caused by: org.dom4j.DocumentException: www.hibernate.org Nested exception: www.hibernate.org
at org.dom4j.io.SAXReader.read(SAXReader.java:484)
at org.hibernate.cfg.Configuration.doConfigure(Configuration.java:1481)
... 2 more

My jar files are

Answer 1

您可以尝试再次检查您的.jar吗？我尝试用我的.jar 执行您的项目SimpleTest.java。这是工作。请看一下

Answer 2

我如上所述从您的页面复制了每个文件并创建了一个新项目。请遵循以下结构以避免上述异常。

public class App 
{
public static void main( String[] args )
{
    System.out.println("Maven + Hibernate + MySQL");
    Session session = HibernateUtil.getSessionFactory().openSession();

    session.beginTransaction();
    Student st1 = new Student();

    st1.setName("srinivas");
    st1.setPhone("99");
    st1.setRoll("123");


    session.save(st1);
    session.getTransaction().commit();
}
}

Answer 3

Hibernate 无法解析您的 hibernate.cfg.xml。

hibernate-core-3.6.9.Final.jar 有一个带有 DTD hibernate-core-3.6.9.Final/org/hibernate/hibernate-configuration-3.0.dtd 的文件

在hibernate-core-3.6.9.Final.jar中检查这个文件。

您需要拥有与hibernate-configuration-3.0.dtd 相同的DTD。

<!DOCTYPE hibernate-configuration PUBLIC "-//Hibernate/Hibernate Configuration DTD 3.0//EN" "http://www.hibernate.org/dtd/hibernate-configuration-3.0.dtd">

看起来你已经拥有它了。

可能你在类路径中有其他 hibernate-core jar 和其他 DTD。