Hibernate无法解析配置：/hibernate.cfg.xml

Question

嘿，伙计们，我是冬眠的初学者，我知道这里有很多类似的问题。我试图从他们那里解决问题，但我做不到。我还试图在dtd中更改公共系统，但它不起作用。我在google上搜索了它，但它显示的每个地方都有dtd语句错误。

这是我的配置文件。

<!DOCTYPE hibernate-mapping PUBLIC
    "-//Hibernate/Hibernate Mapping DTD 3.0//EN"
    "http://www.hibernate.org/dtd/hibernate-mapping-3.0.dtd">
   <hibernate-configuration>
<session-factory>
<property name="show_sql">true</property>
<property name="connection.driver_class">com.mysql.jdbc.Driver/property> 
<property name="connection.url">jdbc:mysql://localhost:3306/hibernate</property> 
<property name="username">root</property> 
<property name="password"></property>
<property name="connection.pool_size">1</property>  
<property name="dialect">org.hibernate.dialect.MySQLDialect</property> 
<property name="hbm2ddl.auto">update</property>
<mapping class="org.hibernate.src.userDetails" /> 
</session-factory>
</hibernate-configuration>

我尝试将版本3.0更改为4.0，因为我使用的是hibernate版本4.3.6，但它仍然不起作用。请帮帮我。

这是我的用户详细信息类...

包装组织。冬眠src；

@Entity
public class userDetails {
@Id
private int userId ;
private String userName;
@Embedded
private Address address;


public Address getAddress() {
    return address;
}

public void setAddress(Address address) {
    this.address = address;
}

public int getUserId() {
    return userId;
}

public String getUserName() {
    return userName;
}
public void setUserName(String userName) {
    this.userName = userName;
}
public void setUserId(int userId) {
    this.userId = userId;

}


}

我已将这些jar文件添加到我的项目中：

lib\jpa\hibernate-entitymanager-4.3.6.Final.jar
lib\required\antlr-2.7.7.jar
lib\required\dom4j-1.6.1.jar
lib\required\hibernate-commons-annotations-4.0.5.Final.jar
lib\required\hibernate-core-4.3.6.Final.jar
lib\required\hibernate-jpa-2.1-api-1.0.0.Final.jar
lib\required\jandex-1.1.0.Final.jar
lib\required\javassist-3.18.1-GA.jar
lib\required\jboss-logging-3.1.3.GA.jar
lib\required\jboss-logging-annotations-1.2.0.Beta1.jar
lib\required\jboss-transaction-api_1.2_spec-1.0.0.Final.jar

这是我在运行应用程序时得到的

Oct 13, 2014 4:24:47 PM      
 org.hibernate.annotations.common.reflection.java.JavaReflectionManager <clinit>
 INFO: HCANN000001: Hibernate Commons Annotations {4.0.5.Final}
 Oct 13, 2014 4:24:47 PM org.hibernate.Version logVersion
INFO: HHH000412: Hibernate Core {4.3.6.Final}
Oct 13, 2014 4:24:47 PM org.hibernate.cfg.Environment <clinit>
INFO: HHH000206: hibernate.properties not found
Oct 13, 2014 4:24:47 PM org.hibernate.cfg.Environment buildBytecodeProvider  
INFO: HHH000021: Bytecode provider name : javassist
Oct 13, 2014 4:24:47 PM org.hibernate.cfg.Configuration configure
INFO: HHH000043: Configuring from resource: /hibernate.cfg.xml
Oct 13, 2014 4:24:47 PM org.hibernate.cfg.Configuration getConfigurationInputStream
INFO: HHH000040: Configuration resource: /hibernate.cfg.xml 
 Exception in thread "main" org.hibernate.HibernateException: Could not parse     
configuration: /hibernate.cfg.xml
at org.hibernate.cfg.Configuration.doConfigure(Configuration.java:2163)
at org.hibernate.cfg.Configuration.configure(Configuration.java:2075)
at org.hibernate.cfg.Configuration.configure(Configuration.java:2054)
at org.hibernate.test.userTest.main(userTest.java:18)
Caused by: org.dom4j.DocumentException: Error on line 4 of document  : Content is not    
allowed in prolog. Nested exception: Content is not allowed in prolog.
at org.dom4j.io.SAXReader.read(SAXReader.java:482)
at org.hibernate.cfg.Configuration.doConfigure(Configuration.java:2155)
... 3 more

Answer 1

问题在下面这行。

"-//Hibernate/Hibernate Configuration DTD .0//EN"

它应该如下：

"-//Hibernate/Hibernate Configuration DTD 4.0//EN"

注意：您在4.0中缺少4，您只有.0

如果不起作用，请将DTD更改为以下内容：

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

Answer 2

需要互联网连接才能运行您的示例：

<?xml version='1.0' encoding='UTF-8'?>  
<!DOCTYPE hibernate-configuration PUBLIC  
          "-//Hibernate/Hibernate Configuration DTD 3.0//EN"  
          "http://hibernate.sourceforge.net/hibernate-configuration-3.0.dtd">

<hibernate-configuration>

    <session-factory>

        <property name="hibernate.dialect">org.hibernate.dialect.PostgreSQLDialect</property>
        <property name="hibernate.connection.driver_class">org.postgresql.Driver</property>
        <property name="hibernate.connection.username">postgres</property>
        <property name="hibernate.connection.password">root</property>
        <property name="hibernate.connection.url">jdbc:postgresql://localhost:5432/db</property>
        <property name="connection_pool_size">1</property>
        <property name="hbm2ddl.auto">update</property>
        <property name="show_sql">true</property>

        <mapping resource="employee.hbm.xml" />
    </session-factory>

</hibernate-configuration>

不需要互联网连接来运行您的示例：

<?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.dialect">org.hibernate.dialect.PostgreSQLDialect</property>
        <property name="hibernate.connection.driver_class">org.postgresql.Driver</property>
        <property name="hibernate.connection.username">postgres</property>
        <property name="hibernate.connection.password">root</property>
        <property name="hibernate.connection.url">jdbc:postgresql://localhost:5432/springdb</property>
        <property name="connection_pool_size">1</property>
        <property name="hbm2ddl.auto">update</property>
        <property name="show_sql">true</property>

        <mapping resource="employee.hbm.xml" />
    </session-factory>

</hibernate-configuration>

这两个配置文件之间的唯一区别是DTD不同。

Answer 3

如你所说，我更新了我的dtd。非常感谢。

我换了标签。然后，它显示了标签前面的空白b错误。

我解决了它，然后它向我显示了可访问数据库Hibernate的错误。我尝试了很多，甚至我重新安装了我的wamp服务器，尽管它不起作用。

最后，我创建了一个新的数据库，并更改了我的hibernate.cfg.xml文件。

这是我的文件，工作很酷...

<?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="show_sql">true</property>
<property name="connection.driver_class">com.mysql.jdbc.Driver</property> 
<property name="connection.url">jdbc:mysql://localhost/test</property> 
<property name="username">root</property> 
<property name="password" /> 
<property name="connection.pool_size">1</property>  
<property name="dialect">org.hibernate.dialect.MySQLDialect</property> 
<property name="hbm2ddl.auto">update</property>
<mapping class="org.hibernet.src.userDetails" ></mapping> 
</session-factory>
</hibernate-configuration>