java - org.hibernate.service.ServiceRegistry 的 classnotfound 错误
问题描述
在这个web项目中,出现java.lang.ClassNotFoundException: org.hibernate.service.ServiceRegistry的错误
搜索后有一个解决方案是在 POM.xml 文件中添加休眠依赖项,但它不是 maven 项目,所以我没有 POM 文件......所以有没有其他方法可以在 web.xml 中添加依赖项或 hibernate.cfg.xml 文件或与此不同的解决方案。
package DAO;
import java.util.ArrayList;
import javax.transaction.Transaction;
import org.hibernate.Session;
import org.hibernate.SessionFactory;
import com.GamesDen.SessionFact;
import Bean.Customer;
public class CustomerOperations implements CustomerDeclarations {
SessionFactory sf = SessionFact.getSessionFact();
Session ss;
Transaction ts;
@Override
public boolean insertCustomer(Customer cr) {
// TODO Auto-generated method stub
ss = sf.openSession();
ss.beginTransaction();
cr.setCustomer_id(101);
ss.save(cr);
ss.getTransaction().commit();
ss.close();
return true;
}
@Override
public boolean deleteCustomer(int id) {
// TODO Auto-generated method stub
return false;
}
@Override
public boolean alterCustomer(int id) {
// TODO Auto-generated method stub
return false;
}
@Override
public ArrayList showAllCustomer() {
// TODO Auto-generated method stub
return null;
}
@Override
public ArrayList searchByUsername(String username) {
// TODO Auto-generated method stub
return null;
}
}
客户运营
package DAO;
import java.util.ArrayList;
import javax.transaction.Transaction;
import org.hibernate.Session;
import org.hibernate.SessionFactory;
import org.hibernate.Session;
import Bean.Customer;
public class CustomerOperations implements
CustomerDeclarations {
SessionFactory sf = SessionFact.getSessionFact();
Session ss;
Transaction ts;
@Override
public boolean insertCustomer(Customer cr) {
// TODO Auto-generated method stub
ss = sf.openSession();
ss.beginTransaction();
cr.setCustomer_id(101);
ss.save(cr);
ss.getTransaction().commit();
ss.close();
return true;
}
@Override
public boolean deleteCustomer(int id) {
// TODO Auto-generated method stub
return false;
}
@Override
public boolean alterCustomer(int id) {
// TODO Auto-generated method stub
return false;
}
@Override
public ArrayList showAllCustomer() {
// TODO Auto-generated method stub
return null;
}
@Override
public ArrayList searchByUsername(String username) {
// TODO Auto-generated method stub
return null;
}
}
package Bean;
import javax.persistence.*;
@Entity
public class Customer {
@Id
@GeneratedValue(strategy = GenerationType.IDENTITY)
private int Customer_id;
@Column(unique = true, nullable = false)
private String username;
@Column(unique = true, nullable = false)
private String first_name;
private String last_name;
private Address address;
@Column(unique = true, nullable = false)
private String emailid;
@Column(unique = true, nullable = false)
private String PASSWORD;
@Override
public String toString() {
return "Customer [Customer_id=" + Customer_id + ",
username = " + username + ", first_name = " + first_name
+ ", last_name=" + last_name + ",
address = "+address+", emailid = " + emailid + ", PASSWORD = " +
PASSWORD + "]";
}
public Customer(int customer_id, String username, String
first_name, String last_name, Address adr, String emailid,
String pASSWORD) {
super();
this.username = username;
this.first_name = first_name;
this.last_name = last_name;
this.address = adr;
this.emailid = emailid;
this.PASSWORD = pASSWORD;
}
public int getCustomer_id() {
return Customer_id;
}
public void setCustomer_id(int customer_id) {
Customer_id = customer_id;
}
public String getUsername() {
return username;
}
public void setUsername(String username) {
this.username = username;
}
public String getFirst_name() {
return first_name;
}
public void setFirst_name(String first_name) {
this.first_name = first_name;
}
public String getLast_name() {
return last_name;
}
public void setLast_name(String last_name) {
this.last_name = last_name;
}
public Address getAddress() {
return address;
}
public void setAddress(Address address) {
this.address = address;
}
public String getEmailid() {
return emailid;
}
public void setEmailid(String emailid) {
this.emailid = emailid;
}
public String getPASSWORD() {
return PASSWORD;
}
public void setPASSWORD(String pASSWORD) {
PASSWORD = pASSWORD;
}
}
对于此类未找到错误是否有任何不同的解决方案,而不是在 pom 文件中添加休眠核心依赖项,因为它不是 maven 项目。
解决方案
不,没有hibernate-core 依赖项(在您的类路径中),您不能使用 hibernate(在任何版本中)。
如果你不使用maven,没问题:
您可以下载完整的“hibernate-orm”发行版(作为来自hibernate (5.4) 发布站点的 .zip 文件):http: //sourceforge.net/projects/hibernate/files/hibernate-orm/5.4.1.Final/hibernate -release-5.4.1.Final.zip/下载
您可以下载和使用所有 maven 工件,而无需实际使用 maven,因为 maven.central(和其他公共 maven 存储库)通过 html 提供公共访问:从 central.maven.org 下载 hibernate-core-5.4.1.Final.jar
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