Question

我在hibernate

中遇到以下异常

据我所知，我做的每件事都是正确的。但是它仍然显示异常..下面是以下代码。请帮我解决这个问题

student.hbm.xml

这是映射xml文件

Exception in thread "main" org.hibernate.InvalidMappingException: Could not parse mapping document from resource student.hbm.xml

hibernate.cfg.xml中 这是confiuration xml文件

     <hibernate-mapping>  
      <class name="com.Student" table="student">  
       <id name="id" type="int" column="sid">
         <generator class="assigned"/>
      </id>
      <property name="firstName" column="first_name" type="string"/>
      <property name="lastName" column="last_name" type="string"/>

      </class>  

     </hibernate-mapping>

这是Student Bean课程 Bean类：Student.java 包com;

<?xml version="1.0" encoding="UTF-8"?>
    <!DOCTYPE hibernate-configuration SYSTEM 
    "http://www.hibernate.org/dtd/hibernate-configuration-3.0.dtd">
    <hibernate-configuration>
       <session-factory>
       <property name="hibernate.dialect">
          org.hibernate.dialect.MySQLDialect
       </property>
       <property name="hibernate.connection.driver_class">
          com.mysql.jdbc.Driver  
       </property>

       <!-- Assume test is the database name -->
       <property name="hibernate.connection.url"> jdbc:mysql://localhost:3306/test

       </property>
       <property name="hibernate.connection.username">
          root
       </property>
       <property name="hibernate.connection.password">
          root
       </property>

       <!-- List of XML mapping files -->
       <mapping resource="student.hbm.xml"/>

    </session-factory>
    </hibernate-configuration>

测试类：Storedata.java 这是Testing类将数据存储到db 包com;

public class Student {
    private int id;  
    private String firstName,lastName;
    public int getId() {
        return id;
    }
    public void setId(int id) {
        this.id = id;
    }
    public String getFirstName() {
        return firstName;
    }
    public void setFirstName(String firstName) {
        this.firstName = firstName;
    }
    public String getLastName() {
        return lastName;
    }
    public void setLastName(String lastName) {
        this.lastName = lastName;
    } 
}

上面的代码给出了以下的例外情况

import org.hibernate.Session;  
import org.hibernate.SessionFactory;  
import org.hibernate.Transaction;  
import org.hibernate.cfg.Configuration; 
public class Storedata {

    public static void main(String[] args) {  

        //creating configuration object  
        Configuration cfg=new Configuration();  
        cfg.configure("hibernate.cfg.xml");//populates the data of the configuration file  


        SessionFactory factory=cfg.buildSessionFactory();  

        //creating session object  
        Session session=factory.openSession();  

        //creating transaction object  
        Transaction t=session.beginTransaction();  

        Student e1=new Student();  
       // e1.setId(115);  
        e1.setFirstName("Kiran"); 
        e1.setLastName("raj");  

        session.save(e1);
            t.commit();//transaction is committed  
        session.close();  

        System.out.println("successfully saved");  

    } 


}

无法从资源student.hbm.xml解析映射文档在HIbernate中的异常

0 个答案: