java.lang.NoClassDefFoundError:无法初始化类xxx.xxx.xxx.HibernateUtil [英] java.lang.NoClassDefFoundError: Could not initialize class xxx.xxx.xxx.HibernateUtil
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问题描述
在此我添加了web.xml的源代码
Herewith I added my source code of web.xml
<?xml version="1.0" encoding="UTF-8"?>
<web-app id="WebApp_ID" version="3.0" xmlns="http://java.sun.com/xml/ns/javaee" xmlns:web="http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd">
<display-name>ussd</display-name>
<servlet>
<servlet-name>init</servlet-name>
<jsp-file>/init.jsp</jsp-file>
<load-on-startup>1</load-on-startup>
</servlet>
<context-param>
<param-name>javax.ws.rs.core.Application</param-name>
<param-value>com.dialog.mife.ussd.api.USSDApplication</param-value>
</context-param>
<context-param>
<param-name>resteasy.providers</param-name>
<param-value>com.dialog.mife.ussd.exception.NotFoundException</param-value>
</context-param>
<context-param>
<param-name>resteasy.servlet.mapping.prefix</param-name>
<param-value>/</param-value>
</context-param>
<listener>
<listener-class>org.jboss.resteasy.plugins.server.servlet.ResteasyBootstrap</listener-class>
</listener>
<servlet>
<servlet-name>Resteasy</servlet-name>
<servlet-class>org.jboss.resteasy.plugins.server.servlet.HttpServletDispatcher</servlet-class>
</servlet>
<servlet>
<servlet-name>ServletAdaptor</servlet-name>
<servlet-class>com.sun.jersey.spi.container.servlet.ServletContainer</servlet-class>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>Resteasy</servlet-name>
<url-pattern>/*</url-pattern>
</servlet-mapping>
<servlet-mapping>
<servlet-name>ServletAdaptor</servlet-name>
<url-pattern>/webresources/*</url-pattern>
</servlet-mapping>
</web-app>
Hibernate.cfg.xml. 我的Web服务项目与Jersey + Hibernate一起使用.
Hibernate.cfg.xml. My Web service project goes with Jersey+Hibernate..
<!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.bytecode.use_reflection_optimizer">false</property>
<property name="hibernate.connection.driver_class">com.mysql.jdbc.Driver</property>
<property name="hibernate.connection.password">xxx</property>
<property name="hibernate.connection.url">jdbc:mysql://localhost:3306/USSD</property>
<property name="hibernate.connection.username">root</property>
<property name="hibernate.dialect">org.hibernate.dialect.MySQLDialect</property>
<property name="show_sql">true</property>
<property name="hbm2ddl.auto">update</property>
<property name="hibernate.transaction.factory_class">org.hibernate.transaction.JDBCTransactionFactory</property>
<property name="connection.pool_size">1</property>
<property name="hibernate.connection.autocommit">true</property>
<mapping class="com.xxx.xxx.xxx.xxx.Application" />
</session-factory>
</hibernate-configuration>
这是HibernateUtil类
Here is HibernateUtil Class
public class HibernateUtil {
private static final SessionFactory sessionFactory;
static {
try {
sessionFactory = new Configuration().configure().buildSessionFactory();
} catch (Exception ex) {
ex.printStackTrace();
throw new ExceptionInInitializerError(ex);
}
}
这是我的错误 我添加了Hibernate最新的jar文件. [ hibernate-core-4.3.7.Final.jar ]
Here is my error I added Hibernate latest jar files. [hibernate-core-4.3.7.Final.jar]
SEVERE: StandardWrapper.Throwable
java.lang.NoClassDefFoundError: Could not initialize class com.dialog.mife.ussd.util.HibernateUtil
at org.apache.jsp.init_jsp.jspInit(init_jsp.java:23)
at org.apache.jasper.runtime.HttpJspBase.init(HttpJspBase.java:48)
at org.apache.jasper.servlet.JspServletWrapper.getServlet(JspServletWrapper.java:180)
at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:369)
at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:390)
at org.apache.jasper.servlet.JspServlet.init(JspServlet.java:138)
at org.apache.catalina.core.StandardWrapper.initServlet(StandardWrapper.java:1280)
at org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:1193)
at org.apache.catalina.core.StandardWrapper.load(StandardWrapper.java:1088)
at org.apache.catalina.core.StandardContext.loadOnStartup(StandardContext.java:5123)
at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5407)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1559)
at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1549)
at java.util.concurrent.FutureTask.run(FutureTask.java:262)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
at java.lang.Thread.run(Thread.java:744)
Nov 11, 2014 2:06:11 PM org.apache.catalina.core.StandardContext loadOnStartup
SEVERE: Servlet /ussd threw load() exception
java.lang.NoClassDefFoundError: Could not initialize class com.dialog.mife.ussd.util.HibernateUtil
at org.apache.jsp.init_jsp.jspInit(init_jsp.java:23)
at org.apache.jasper.runtime.HttpJspBase.init(HttpJspBase.java:48)
at org.apache.jasper.servlet.JspServletWrapper.getServlet(JspServletWrapper.java:180)
at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:369)
at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:390)
at org.apache.jasper.servlet.JspServlet.init(JspServlet.java:138)
at org.apache.catalina.core.StandardWrapper.initServlet(StandardWrapper.java:1280)
at org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:1193)
at org.apache.catalina.core.StandardWrapper.load(StandardWrapper.java:1088)
at org.apache.catalina.core.StandardContext.loadOnStartup(StandardContext.java:5123)
at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5407)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1559)
at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1549)
at java.util.concurrent.FutureTask.run(FutureTask.java:262)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
at java.lang.Thread.run(Thread.java:744)
请帮助我解决此问题 谢谢
Please help me to sort out this issue thanks
推荐答案
SessionFactory的初始化失败时，可能会发生这种错误.您已经提到您正在使用hibernate-core-4.3.7.初始化SessionFactory的方式不适用于该版本.使用休眠版本3.x或更改初始化SessionFactory的方式.以下是在Hibernate 4.x +中构建会话工厂的正确方法.
This Kind of an error can be happened when initialization of SessionFactory fails. You have mentioned that you are using hibernate-core-4.3.7. The way you are initializing the SessionFactory is not the correct for this version. Use Hibernate version 3.x or change the way you are initializing the SessionFactory. Below is the correct way to build the session factory in Hibernate 4.x +.
Configuration configuration = new Configuration().configure();
StandardServiceRegistryBuilder builder = new StandardServiceRegistryBuilder().
applySettings(configuration.getProperties());
SessionFactory factory = configuration.buildSessionFactory(builder.build());
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