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[英]java.lang.ClassNotFoundException: org.hibernate.criterion.Criterion
[英]java.lang.NoClassDefFoundError: org/hibernate/criterion/Criterion
我正在 eclipse Juno、Spring 3.1.1、hibernate 4.1、tomcat 7 和 mySQL 中使用 STS。
我創建了一個簡單的 MVC 模板項目。 我的目的是用戶將在表單中輸入一些數據,並且這些數據將保存在數據庫中。
我創造了:
網絡層:
服務層:
包含DAO字段並操作dao方法的服務類。
數據訪問層:
當我用模擬 DAO 實現檢查系統時,一切正常——從 web 層到模擬 DAO。
但是當注入真正的 DAO 時,我得到了一個 404 錯誤,並且數據庫中沒有發生任何事情。
我將只顯示 DAO 實現和 root-context.xml 因為這是我認為問題的地方。
我的 DAO 實現:
@Repository
public class Presentation_page_dao_hibernate_Impl implements Presentation_page_dao {
private SessionFactory sessionFactory;
@Autowired
public Presentation_page_dao_hibernate_Impl(SessionFactory sessionFactory) {
this.sessionFactory=sessionFactory;
System.out.println("Hi! i'm in ActionDao_HibernateImpl constructor");
}
private Session currentSession() {
return sessionFactory.getCurrentSession();
}
public void create(Presentation_page pp) {
currentSession().beginTransaction();
currentSession().save(pp);
currentSession().getTransaction().commit();
currentSession().close();
}
public Presentation_page read(int pageid) throws PresentationPageNotFoundException {
currentSession().beginTransaction();
Criteria criteria=currentSession().createCriteria(Presentation_page.class);
criteria.add(Restrictions.eq("page_id", pageid));
List<Presentation_page> list_of_pages=criteria.list();
currentSession().getTransaction().commit();
currentSession().close();
for(Presentation_page pp:list_of_pages) {
if (pp.getPage_id()==pageid){
return pp;
}
}
return null;
}
public void update(Presentation_page pp) throws PresentationPageNotFoundException {
currentSession().beginTransaction();
currentSession().update(pp);
currentSession().getTransaction().commit();
currentSession().close();
}
@Override
public void delete(Presentation_page pp) throws PresentationPageNotFoundException {
currentSession().beginTransaction();
currentSession().delete(pp);
currentSession().getTransaction().commit();
currentSession().close();
}
}
這是我的 root-context.xml:
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:context="http://www.springframework.org/schema/context"
xmlns:jee="http://www.springframework.org/schema/jee"
xsi:schemaLocation="http://www.springframework.org/schema/jee http://www.springframework.org/schema/jee/spring-jee-3.1.xsd
http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.0.xsd">
<!-- Root Context: defines shared resources visible to all other web components -->
<!-- For annotations -->
<context:component-scan
base-package="my.topLevel.pack">
</context:component-scan>
<import resource="hibernate2.xml"/>
</beans>
這是我的 hibernate.xml:
<!DOCTYPE hibernate-configuration PUBLIC
"-//Hibernate/Hibernate Configuration DTD 3.0//EN"
"http://www.hibernate.org/dtd/hibernate-configuration-3.0.dtd">
<hibernate-configuration>
<session-factory>
<!-- Database connection settings -->
<property name="connection.driver_class">com.mysql.jdbc.Driver</property>
<property name="connection.url">jdbc:mysql://localhost:3306/spring_presentation</property>
<property name="connection.username">rotemya</property>
<property name="connection.password">*******</property>
<!-- JDBC connection pool (use the built-in) -->
<property name="connection.pool_size">1</property>
<!-- SQL dialect -->
<property name="dialect">org.hibernate.dialect.MySQLDialect</property>
<!-- Enable the second-level cache -->
<property name="cache.provider_class">org.hibernate.cache.internal.NoCacheProvider</property>
<!-- Echo all executed SQL to stdout -->
<property name="show_sql">true</property>
<!-- Drop and re-create the database schema on startup -->
<property name="hbm2ddl.auto">create</property>
<!-- Names the annotated entity class -->
<mapping class="my.topLevel.pack.Domain"/>
</session-factory>
</hibernate-configuration>
我對 pom.xml 有以下依賴項:
<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>my.topLevel</groupId>
<artifactId>pack</artifactId>
<name>SpringSTS_Sample_Project</name>
<packaging>war</packaging>
<version>1.0.0-BUILD-SNAPSHOT</version>
<properties>
<java-version>1.6</java-version>
<org.springframework-version>3.1.1.RELEASE</org.springframework-version>
<org.aspectj-version>1.6.10</org.aspectj-version>
<org.slf4j-version>1.6.6</org.slf4j-version>
</properties>
<dependencies>
<!-- Spring -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context</artifactId>
<version>${org.springframework-version}</version>
<exclusions>
<!-- Exclude Commons Logging in favor of SLF4j -->
<exclusion>
<groupId>commons-logging</groupId>
<artifactId>commons-logging</artifactId>
</exclusion>
</exclusions>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-webmvc</artifactId>
<version>${org.springframework-version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-orm</artifactId>
<version>3.0.3.RELEASE</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-jdbc</artifactId>
<version>3.0.3.RELEASE</version>
</dependency>
<dependency>
<groupId>org.eclipse.persistence</groupId>
<artifactId>javax.persistence</artifactId>
<version>2.0.0</version>
</dependency>
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>5.1.13</version>
</dependency>
</dependencies>
</project>
這是我的休眠 jar 文件:
我收到以下錯誤:
java.lang.NoClassDefFoundError: org/hibernate/criterion/Criterion
有任何想法嗎?
好的問題解決了!
我從 hibernate 庫文件(我創建的)中刪除了所有 jar,並通過 Maven(pom.xml 文件)添加它們。 錯誤消失了..
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