在hibernate spring项目上创建bean时出错

Question

我是spring和hibernate的新手，在这个项目上我使用netbeans v.8.2，我使用库spring 3.2.7和hibernate 4.3.x我应该怎么做来修复这个错误?

eror:在类路径resource [applicationContext.xml]中定义名为'dao'的bean创建错误:在设置bean属性'template'时无法解析对bean 'template'的引用;在类路径资源[applicationContext.xml]中定义名称为'template'的bean时出现错误:在设置bean属性'sessionFactory'时无法解析对bean 'mysessionFactory'的引用;嵌套异常是org.springframework.beans.factory.BeanCreationException:在类路径resource [applicationContext.xml]中定义名为'mysessionFactory'的bean创建错误:初始化bean失败;嵌套异常是java.lang.NoClassDefFoundError: org/hibernate/cache/CacheProvider

这是应用程序上下文。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:p="http://www.springframework.org/schema/p"  
xsi:schemaLocation="http://www.springframework.org/schema/beans  
http://www.springframework.org/schema/beans/spring-beans-3.0.xsd">  

<bean id="dataSource" class="org.springframework.jdbc.datasource.DriverManagerDataSource">  
<property name="driverClassName"  value="com.mysql.jdbc.Driver"></property>  
<property name="url" value="jdbc:mysql://localhost:3306/kampus"></property>  
<property name="username" value="root"></property>  
<property name="password" value=""></property>  
</bean>  

<bean id="mysessionFactory"  
class="org.springframework.orm.hibernate3.LocalSessionFactoryBean">  
<property name="dataSource" ref="dataSource"></property>  

<property name="mappingResources">  
<list>  
<value>Mahasiswa.hbm.xml</value>  
</list>  
</property>  

<property name="hibernateProperties">  
<props>  
<prop key="hibernate.dialect">org.hibernate.dialect.MySQLDialect</prop>  
<prop key="hibernate.hbm2ddl.auto">update</prop>  
<prop key="hibernate.show_sql">true</prop>  

</props>  
</property>  
</bean>  

<bean id="template" class="org.springframework.orm.hibernate3.HibernateTemplate">  
<property name="sessionFactory" ref="mysessionFactory"></property>  
</bean>  

<bean id="dao" class="dao.MahasiswaDao">  
<property name="template" ref="template"></property>  
</bean>  


</beans>  

这是mahasiswa.java (mahasiswa=student in English):

package entity;
public class Mahasiswa  implements java.io.Serializable {

private String npm;
private String nama;
private String jurusan;
private String alamat;
public Mahasiswa() {
}
public Mahasiswa(String npm, String nama, String jurusan, String alamat) {
this.npm = npm;
this.nama = nama;
this.jurusan = jurusan;
this.alamat = alamat;
}
public String getNpm() {
return this.npm;
}
public void setNpm(String npm) {
this.npm = npm;
}
public String getNama() {
return this.nama;
}
public void setNama(String nama) {
this.nama = nama;
}
public String getJurusan() {
return this.jurusan;
}
public void setJurusan(String jurusan) {
this.jurusan = jurusan;
}
public String getAlamat() {
return this.alamat;
}
public void setAlamat(String alamat) {
this.alamat = alamat;
}

}

我是Mahasiswa。刀:

package dao;
import entity.Mahasiswa;
import org.springframework.orm.hibernate3.HibernateTemplate;
public class MahasiswaDao {
HibernateTemplate template;
public void setTemplate(HibernateTemplate template) {  
this.template = template;  
}
public void saveMahasiswa(Mahasiswa m){
template.save(m);
}
}

这是mahasiswa.hbm.xml:

<!DOCTYPE hibernate-mapping PUBLIC "-//Hibernate/Hibernate Mapping DTD 3.0//EN"
"http://www.hibernate.org/dtd/hibernate-mapping-3.0.dtd">
<!-- Generated Sep 30, 2021 6:57:57 AM by Hibernate Tools 4.3.1 -->
<hibernate-mapping>
<class name="entity.Mahasiswa" table="mahasiswa" catalog="kampus" optimistic-lock="version">
<id name="npm" type="string">
<column name="npm" length="13" />
<generator class="assigned" />
</id>
<property name="nama" type="string">
<column name="nama" length="100" not-null="true" />
</property>
<property name="jurusan" type="string">
<column name="jurusan" length="100" not-null="true" />
</property>
<property name="alamat" type="string">
<column name="alamat" length="100" not-null="true" />
</property>
</class>
</hibernate-mapping>

，这是main.java:

public class test06 {
public static void main(String[] args) {
Resource r=new ClassPathResource("applicationContext.xml");  
BeanFactory factory=new XmlBeanFactory(r);  

MahasiswaDao dao=(MahasiswaDao)factory.getBean("dao");  

Mahasiswa m=new Mahasiswa();  
m.setNpm("1");  
m.setNama("test");  
m.setJurusan("");
m.setAlamat("");

dao.saveMahasiswa(m); 
}
}

感谢

Answer 1

您错过了classpath上的org.hibernate.cache.Provider课。

根据java.lang.ClassNotFoundException: org.hibernate.cache.CacheProvider异常而集成spring和hibernate

org.hibernate.cache。的更改中删除了提供程序Hibernate 3到Hibernate 4.

您正在使用Hibernate 4，但是您在applicationContext.xml中使用的Spring中与Hibernate相关的类来自org.springframework.orm.hibernate3包，因此它们需要缺少依赖项。

尝试使用org.springframework.orm.hibernate4包中的HibernateTemplate和LocalSessionFactoryBean。

如果Spring 3.2.7中没有这样的包，请升级到Spring 4。