Question

我是hibernate的新手。我正在开发一个struts应用程序，我想整合hibernate。我使用SQL Server 2008 R2作为数据库。我已经配置了我的hibernate配置文件并使用了基于注释的实体。当我尝试运行时我的hibernate配置文件，我得到以下错误：

错误

12:49:41.752 [main] DEBUG org.hibernate.util.DTDEntityResolver - trying to resol
ve system-id [http://hibernate.org/dtd/hibernate-configuration-3.0.dtd]
Initial SessionFactory creation failed.org.hibernate.HibernateException: Could n
ot parse configuration: hibernate.cfg.xml

我在下面提供了我的文件：

DAOImpl

package com.myProj.dao.impl;

import java.util.logging.Logger;

import com.googlecode.s2hibernate.struts2.plugin.annotations.SessionTarget;
import com.googlecode.s2hibernate.struts2.plugin.annotations.TransactionTarget;
import com.myProj.dao.StudentDetailsDAO;
import com.myProj.entity.StudentDetails;
import org.hibernate.Session;
import org.hibernate.Transaction;

public class StudentDetailsDAOImpl implements StudentDetailsDAO{

    Logger LOGGER;
    @SessionTarget
    Session session;
    @TransactionTarget
    Transaction transaction;
    @Override
    public void saveOrUpdateStudentDetail(StudentDetails studDetails) {
        try{
            session.saveOrUpdate(studDetails);
        }catch(Exception e){
            transaction.rollback();
            LOGGER.info("StudentDetailsDAOImpl : saveOrUpdateStudentDetail : Exception "+e.toString());
        }

    }

}

StudentDetails.java

package com.myProj.entity;

import javax.persistence.Column;
import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.Id;
import javax.persistence.Table;

@Entity
@Table(name="dbo.student_details")
public class StudentDetails {
@Id
@GeneratedValue
@Column(name="id")
private int id;

@Column(name="name")
private String name;

@Column(name="grade")
private String grade;

@Column(name="dob")
private String dob;

@Column(name="stud_address")
private String stud_address;

@Column(name="stud_language")
private String stud_language;

@Column(name="student_marks_id")
private StudentMarks studentMarks;

public int getId() {
    return id;
}

public void setId(int id) {
    this.id = id;
}

public String getName() {
    return name;
}

public void setName(String name) {
    this.name = name;
}

public String getGrade() {
    return grade;
}

public void setGrade(String grade) {
    this.grade = grade;
}

public String getDob() {
    return dob;
}

public void setDob(String dob) {
    this.dob = dob;
}

public String getStud_address() {
    return stud_address;
}

public void setStud_address(String stud_address) {
    this.stud_address = stud_address;
}

public String getStud_language() {
    return stud_language;
}

public void setStud_language(String stud_language) {
    this.stud_language = stud_language;
}

public StudentMarks getStudentMarks() {
    return studentMarks;
}

public void setStudentMarks(StudentMarks studentMarks) {
    this.studentMarks = studentMarks;
}
}

StudentMark.java

package com.myProj.entity;

import javax.persistence.Column;
import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.Id;
import javax.persistence.Table;


@Entity
@Table(name="dbo.student_marks")
public class StudentMarks {
    @Id
    @GeneratedValue
    @Column(name="id")
    private int id;

@Column(name="english")
private int english;

@Column(name="physics")
private int physics;

@Column(name="chemistry")
private int chemistry;

@Column(name="biology")
private int biology;

@Column(name="maths")
private int maths;

public int getId() {
    return id;
}
public void setId(int id) {
    this.id = id;
}
public int getEnglish() {
    return english;
}
public void setEnglish(int english) {
    this.english = english;
}
public int getPhysics() {
    return physics;
}
public void setPhysics(int physics) {
    this.physics = physics;
}
public int getChemistry() {
    return chemistry;
}
public void setChemistry(int chemistry) {
    this.chemistry = chemistry;
}
public int getBiology() {
    return biology;
}
public void setBiology(int biology) {
    this.biology = biology;
}
public int getMaths() {
    return maths;
}
public void setMaths(int maths) {
    this.maths = maths;
}

}

HibernateUtil.java

package com.myProj.util;

import org.hibernate.SessionFactory;
import org.hibernate.cfg.AnnotationConfiguration;

import com.myProj.entity.StudentDetails;

public class HibernateUtil {

private static final SessionFactory sessionFactory;

static {
    try {
        AnnotationConfiguration config = new AnnotationConfiguration();
        config.addAnnotatedClass(StudentDetails.class);



        config.configure("hibernate.cfg.xml");
    //new SchemaExport(config).create(true,true);

        sessionFactory = config.buildSessionFactory();

    } catch (Throwable ex) {
        // Log the exception. 
        System.err.println("Initial SessionFactory creation failed." + ex);
        throw new ExceptionInInitializerError(ex);
    }
}

public static SessionFactory getSessionFactory() {
    return sessionFactory;
}
}

hibernate.cfg.xml中

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE hibernate-configuration PUBLIC "-//Hibernate/Hibernate Configuration DTD 3.0//EN" "http://hibernate.org/dtd/hibernate-configuration-3.0.dtd">
<hibernate-configuration>
    <session-factory>
        <property name="hibernate.connection.driver_class">com.microsoft.sqlserver.jdbc.SQLServerDriver</property>
        <property name="hibernate.connection.url"> jdbc:sqlserver://<myIp>:1433;databaseName=<myDatabase></property>
        <property name="hibernate.connection.username">root</property>
        <property name="connection.password">root</property>
        <property name="connection.pool_size">1</property>
        <property name="hibernate.dialect">org.hibernate.dialect.SQLServer2008Dialect</property>
        <property name="show_sql">true</property>
        <property name="hbm2ddl.auto">create</property>
        <mapping class="com.myProj.entity.StudentDetails" ></mapping>
        <mapping class="com.myProj.entity.StudentMarks" ></mapping>
    </session-factory>
</hibernate-configuration>

我在下面给出了我正在使用的jar文件列表：

commons-beanutils-1.8.0.jar
commons-chain-1.2.jar
  commons-digester-2.1.jar
hibernate-3.5.3.jar
  javax.servlet-3.0.jar
logback-classic-0.9.6.jar
  logback-core-0.9.6.jar
ognl-3.0.6.jar
  slf4j-api-2.0.99.jar
slf4j-log4j13-1.0.1.jar
  sqljdbc-1.2.0.jar
struts-core-1.3.10.jar
  struts-taglib-1.3.10-sources.jar
struts-taglib-1.3.5.jar
  struts2-core-2.3.8.jar
struts2-json-plugin-2.3.8.jar
  struts2-tiles-plugin-2.1.8.1.jar
xwork-2.0.4.jar
  XWork的核 - 2.3.12.jar

当我检查我的apache服务器时，我收到以下错误

Apache服务器日志

java.lang.ExceptionInInitializerError
    at com.myProj.util.HibernateUtil.<clinit>(HibernateUtil.java:27)
    at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
    at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39)
    at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27)
    at java.lang.reflect.Constructor.newInstance(Constructor.java:513)
    at java.lang.Class.newInstance0(Class.java:355)
    at java.lang.Class.newInstance(Class.java:308)
    at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:3744)
    at org.apache.catalina.core.StandardContext.start(StandardContext.java:4252)
    at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1014)
    at org.apache.catalina.core.StandardHost.start(StandardHost.java:736)
    at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1014)
    at org.apache.catalina.core.StandardEngine.start(StandardEngine.java:443)
    at org.apache.catalina.core.StandardService.start(StandardService.java:448)
    at org.apache.catalina.core.StandardServer.start(StandardServer.java:700)
    at org.apache.catalina.startup.Catalina.start(Catalina.java:552)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
    at java.lang.reflect.Method.invoke(Method.java:597)
    at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:295)
    at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:433)
Caused by: org.hibernate.HibernateException: Could not parse configuration: hibernate.cfg.xml
    at org.hibernate.cfg.Configuration.doConfigure(Configuration.java:1586)
    at org.hibernate.cfg.AnnotationConfiguration.doConfigure(AnnotationConfiguration.java:1212)
    at org.hibernate.cfg.AnnotationConfiguration.doConfigure(AnnotationConfiguration.java:107)
    at org.hibernate.cfg.Configuration.configure(Configuration.java:1520)
    at org.hibernate.cfg.AnnotationConfiguration.configure(AnnotationConfiguration.java:1194)
    at com.myProj.util.HibernateUtil.<clinit>(HibernateUtil.java:19)
    ... 21 more
Caused by: org.dom4j.DocumentException: hibernate.org Nested exception: hibernate.org
    at org.dom4j.io.SAXReader.read(SAXReader.java:484)
    at org.hibernate.cfg.Configuration.doConfigure(Configuration.java:1576)
    ... 26 more

Answer 1

我终于发现了什么是错的。但不知道为什么它不起作用。我在配置文件中更改了以下行

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

到

 <!DOCTYPE hibernate-configuration SYSTEM "classpath://com/myProj/util/hibernate-configuration-3.0.dtd">

并将文件 hibernate-configuration-3.0.dtd 放在com.myProj.util.in包中。此配置文件作为gem运行并创建会话。

Answer 2

问题是hibernate.cfg.xml

<property name="hibernate.connection.url">
jdbc:sqlserver://<myIp>:1433;databaseName=<myDatabase>
</property>

将<myIp>和<myDatabase>替换为正确的值

Answer 3

正如StanislavL所提到的，问题在于如何将属性[myIp，myDatabase]作为xml标记提及。这会导致xml解析异常。

因为你没有使用spring，所以你最好的选择是在运行时设置属性。请参阅这些链接 - hibernate.cfg.xml - Set parameters from a properties file

查看答案“你可以通过编程方式” - How to include properties from external file to hibernate.cfg.xml?

org.dom4j.DocumentException：hibernate.org嵌套异常：hibernate.org

错误