Question

Hibernate 配置文件问题，一直报错不知什么原因？请高手解决一下

创建会话工厂失败
org.hibernate.HibernateException: Could not parse configuration: /hibernate.cfg.xml
at org.hibernate.cfg.Configuration.doConfigure(Configuration.java:1418)
at org.hibernate.cfg.Configuration.configure(Configuration.java:1352)
at com.mr.hibernate.HibernateInitialize.<clinit>(HibernateInitialize.java:19)
at com.mr.main.AddProduct.main(AddProduct.java:24)
Caused by: org.dom4j.DocumentException: Error on line 11 of document : The string "--" is not permitted within comments. Nested exception: The string "--" is not permitted within comments.
at org.dom4j.io.SAXReader.read(SAXReader.java:482)
at org.hibernate.cfg.Configuration.doConfigure(Configuration.java:1408)
... 3 more
创建会话工厂失败
org.hibernate.HibernateException: Could not parse configuration: /hibernate.cfg.xml
at org.hibernate.cfg.Configuration.doConfigure(Configuration.java:1418)
at org.hibernate.cfg.Configuration.configure(Configuration.java:1352)
at com.mr.hibernate.HibernateInitialize.rebuildSessionFactory(HibernateInitialize.java:48)
at com.mr.hibernate.HibernateInitialize.getSession(HibernateInitialize.java:35)
at com.mr.main.AddProduct.main(AddProduct.java:24)
Caused by: org.dom4j.DocumentException: Error on line 11 of document : The string "--" is not permitted within comments. Nested exception: The string "--" is not permitted within comments.
at org.dom4j.io.SAXReader.read(SAXReader.java:482)
at org.hibernate.cfg.Configuration.doConfigure(Configuration.java:1408)
... 4 more
Exception in thread "main" java.lang.NullPointerException
at com.mr.main.AddProduct.main(AddProduct.java:29)

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

<hibernate-configuration>
<session-factory>
<property name="connection.driver_class">com.microsoft.sqlserver.jdbc.SQLServerDriver</property> <!-- 数据库驱动类 -->
<property name="connection.url">jdbc:sqlserver://localhost:1433;DatabaseName=db_database_product</property> <!-- 数据库连接的URL -->
<property name="connection.username">sa</property> <!-- 数据库连接的用户名 -->
<property name="connection.password">123456789</property> <!-- 数据库连接的密码>
<!-- SQL数据库方言SQLServer -->
<property name="dialect">org.hibernate.dialect.SQLServerDialect</property>
<property name="show_sql">true</property> <!-- 打印SQL语句 -->
<!-- 映射文件 -->
<mapping resource="com/mr/product/Product.hbm.xml"/>
</session-factory>

</hibernate-configuration>

Answer 1

你的hibernate.cfg.xml有错，

你注意一下<!-- 数据库连接的密码>这句，应该是<!-- 数据库连接的密码-->，少了两个--号

<?xml version='1.0' encoding='UTF-8'?> 
<!DOCTYPE hibernate-configuration PUBLIC  
        "-//Hibernate/Hibernate Configuration DTD 3.0//EN"  
<hibernate-configuration>
  <session-factory>
    <property name="connection.driver_class">com.microsoft.sqlserver.jdbc.SQLServerDriver</property>  <!-- 数据库驱动类 -->
    <property name="connection.url">jdbc:sqlserver://localhost:1433;DatabaseName=db_database_product</property> <!-- 数据库连接的URL -->
    <property name="connection.username">sa</property>  <!-- 数据库连接的用户名 -->
    <property name="connection.password">123456789</property> <!-- 数据库连接的密码-->
    <!-- SQL数据库方言SQLServer -->
    <property name="dialect">org.hibernate.dialect.SQLServerDialect</property>
    <property name="show_sql">true</property> <!-- 打印SQL语句 -->
    <!-- 映射文件 -->
    <mapping resource="com/mr/product/Product.hbm.xml"/>
</session-factory>
</hibernate-configuration>

Answer 2

你的注释出了问题 应该将 <!-- 数据库连接的密码> 改成<!-- 数据库连接的密码 -->

别忘了注释是 <!-- -->哦，你缺少了后面那两个--