java.lang.ClassNotFoundException：org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter） [英] java.lang.ClassNotFoundException: org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter)

问题描述

我想使用Hibernate从JSP向MySQL插入数据，但无法获得会话工厂的对象。

我成功创建了Hibernate的util对象，但在获取数据时显示错误。

当我在JSP页面中输入数据并获取DAO层中的数据时。但是在DAO层，我扩展了会话工厂类。但是我无法完成任务。
$ b $（Struts动作类）

  package org.sachin.action; 
 
 import java.util.List; 
 
 import org.sachin.hibernate.AdminCreate; 
 import org.sachin.hibernate.AdminManager; 
 
 import com.opensymphony.xwork2.ActionSupport; 
 
 
公共类Addad扩展ActionSupport {
 
 private AdminCreate admincreate; 
私人列表< AdminCreate> adminList; 
私人长ID; 
 
 AdminManager adminmanager; 
 public Addad（）{
 AdminManager adminmanager = new AdminManager（）; 
} 
 
 public String execute（）{
 return SUCCESS; 
} 
 
 public String add（）{
 AdminManager adm = new AdminManager（）; 
 System.out.println（getadmin（））; 
尝试{
 adm.add（getadmin（））; 
} catch（Exception e）{
 e.printStackTrace（）; 
} 
返回SUCCESS; 
} 
 
 public AdminCreate getadmin（）{
 return admincreate; 
} 
 
公开列表< AdminCreate> getadminList（）{
 return adminList; 
} 
 
 public void setadmin（AdminCreate adminCreate）{
 this.admincreate = adminCreate; 
} 
 
 public void setadminList（List< AdminCreate> adminList）{
 this.adminList = adminList; 
} 
 
 public Long getId（）{
 return id; 
} 
 
 public void setId（Long id）{
 this.id = id; 
 
 
 
 
  Hibernate utility class 
 
 $ 
 $ b 
  package org.sachin.hibernate; 
 
 import org.hibernate.SessionFactory; 
 import org.hibernate.cfg.AnnotationConfiguration; 
 
 public class HibernateUtil {
 
 private static final SessionFactory sessionFactory = buildSessionFactory（）; 
 
 private static SessionFactory buildSessionFactory（）{
 try {
 //从hibernate.cfg.xml创建SessionFactory 
返回新的AnnotationConfiguration（）。configure（）
 .buildSessionFactory（）; 
} catch（Throwable ex）{
 System.err.println（Initial SessionFactory creation failed。+ ex）; 
抛出新的ExceptionInInitializerError（ex）; 
 
 
 
 public static SessionFactory getSessionFactory（）{
 return sessionFactory; 
 
 
 $ / code $ / pre 
 $ b $（DAO类）
 
 
  package org.sachin.hibernate; 
 
 import java.util.List; 
 
 import org.hibernate.HibernateException; 
 import org.hibernate.classic.Session; 
 $ b $ public class AdminManager扩展HibernateUtil {
 public AdminCreate add（AdminCreate admincreate）{
 Session session = HibernateUtil.getSessionFactory（）。getCurrentSession（）; 
 session.beginTransaction（）; 
 session.save（admincreate）; 
 session.getTransaction（）。commit（）; 
返回admincreate; 
} 
 
公开列表< AdminCreate> list（）{
 Session session = HibernateUtil.getSessionFactory（）。getCurrentSession（）; 
 session.beginTransaction（）; 
列表< AdminCreate> admin = null; 
 try {
 admin =（List< AdminCreate>）session.createQuery（from admin）。 
} catch（HibernateException e）{
 e.printStackTrace（）; 
 session.getTransaction（）。rollback（）; 
} 
 session.getTransaction（）。commit（）; 
返回管理员; 
 
 
 $ / code> 
（获取数据）
 
 JSP页面： 
 
 
 <％@ page language =javacontentType =text / html; charset = ISO-8859- 1
 pageEncoding =ISO-8859-1％> 
 <％@ taglib prefix =suri =/ struts-tags％> 
<！DOCTYPE html PUBLIC -  // W3C // DTD HTML 4.01 Transitional // ENhttp://www.w3.org/TR/html4/loose.dtd\"> 
< html> 
< head> 
< meta http-equiv =Content-Typecontent =text / html; charset = ISO-8859-1> 
< link rel =stylesheettype =text / csshref =NewFile.css> 
< title>编辑详情< / title> 
< script type =text / javascriptsrc =/ javascript / confirm.js> 
< / script> 
< / head> 
< body> 
< center>< div style =color：＃FF0000：＃FF0000; border-radius：5px 5px 0px 0px; padding：15px;>< span style =font-family：verdana， arial; color：＃FF0000; font-size：2.00em; font-weight：bold;>编辑详细信息< br>< br> < /跨度>< / DIV>< /中心]，[ 
 
     <！ - < s：password label =确认密码：ID =cpasswordname =cpasswordkey =admincreate.cpassword>< / s：password>  - > ; 
< s：submit value =更改我的详细信息>< / s：submit> 
 
< / s：form> 
 
< / body> 
< / html> 
  
 
 
解决方案
可能struts库在WEB-INF下不存在/ lib。尝试手动复制最小罐子或者配置eclipse通过添加库来自动部署jar ： 
 
 
 项目属性 - > DeploymentAssembly->添加。 
  
 
I want to insert data from JSP to MySQL using Hibernate but am unable to get the object of session factory.


I am successfully creating the object of Hibernate util class, but while fetching the data it shows an error.

While I am entering data in JSP page and getting the data in DAO layer. But in DAO layer I am extending the session factory class. But I am unable to achieve the task.

(Struts action class)    
package org.sachin.action;

import java.util.List;

import org.sachin.hibernate.AdminCreate;
import org.sachin.hibernate.AdminManager;   

import com.opensymphony.xwork2.ActionSupport;


public class Addad extends ActionSupport {

private AdminCreate admincreate;
private List<AdminCreate> adminList;
private Long id;

   AdminManager adminmanager;
   public Addad() {
       AdminManager   adminmanager=new AdminManager();
   }

   public String execute() {
       return SUCCESS;
   }

public String add() {
      AdminManager adm=new AdminManager();
       System.out.println(getadmin());
       try {
           adm.add(getadmin());
       } catch (Exception e) {
           e.printStackTrace();
       }
       return SUCCESS;
   }

   public AdminCreate getadmin() {
       return admincreate;
   }

   public List<AdminCreate> getadminList() {
       return adminList;
   }

   public void setadmin(AdminCreate adminCreate) {
       this.admincreate = adminCreate;
   }

   public void setadminList(List<AdminCreate> adminList) {
       this.adminList = adminList;
   }

   public Long getId() {
       return id;
   }

   public void setId(Long id) {
       this.id = id;
   }
}
(Hibernate utility class)
package org.sachin.hibernate;

import org.hibernate.SessionFactory;
import org.hibernate.cfg.AnnotationConfiguration;

public class HibernateUtil {

    private static final SessionFactory sessionFactory = buildSessionFactory();

    private static SessionFactory buildSessionFactory() {
        try {
            // Create the SessionFactory from hibernate.cfg.xml
            return new AnnotationConfiguration().configure()
                    .buildSessionFactory();
        } catch (Throwable ex) {
            System.err.println("Initial SessionFactory creation failed." + ex);
            throw new ExceptionInInitializerError(ex);
        }
    }

    public static SessionFactory getSessionFactory() {
        return sessionFactory;
    }
}
(DAO class)    
package org.sachin.hibernate;

import java.util.List;

import org.hibernate.HibernateException;
import org.hibernate.classic.Session;

public class AdminManager extends HibernateUtil {
    public  AdminCreate add(AdminCreate admincreate) {
        Session session = HibernateUtil.getSessionFactory().getCurrentSession();
        session.beginTransaction();
        session.save(admincreate);
        session.getTransaction().commit();
        return admincreate;
    }

    public List<AdminCreate> list() {
        Session session = HibernateUtil.getSessionFactory().getCurrentSession();
        session.beginTransaction();
        List<AdminCreate> admin = null;
        try {
            admin = (List<AdminCreate>)session.createQuery("from admin").list();
        } catch (HibernateException e) {
            e.printStackTrace();
            session.getTransaction().rollback();
        }
        session.getTransaction().commit();
        return admin;
    }
}
(Fetching DATA)

JSP page:
<%@ page language="java" contentType="text/html; charset=ISO-8859-1"
    pageEncoding="ISO-8859-1"%>
     <%@ taglib prefix="s" uri="/struts-tags"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
<link rel="stylesheet" type="text/css" href="NewFile.css">
<title>Edit Details</title>
<script type="text/javascript" src="/javascript/confirm.js">
</script>
</head>
<body>
<center><div style="color:#FF0000: #FF0000; border-radius: 5px 5px 0px 0px; padding: 15px;"><span style="font-family: verdana,arial; color: #FF0000; font-size: 2.00em; font-weight:bold;">Edit Details<br><br> </span></div></center>

<s:form action="/tut/admincreate" id="login" onsubmit="return confirm()">
<s:textfield label="UserName:" name="admincreate.username"></s:textfield>
<s:textfield label="Firstname:" name="admincreate.firstname"></s:textfield>
<s:textfield label="LastName:" name="admincreate.lastname"></s:textfield>
<s:password label="Password:" ID="password"  name="admincreate.password"></s:password>
<!--<s:password label="Confirm Password:" ID="cpassword" name="cpassword" key="admincreate.cpassword"></s:password>-->
<s:submit value="Change My Details"></s:submit>

</s:form>

</body>
</html>

解决方案
Probably struts library is not present under the WEB-INF/lib . Try copying minimal jars manually or configure eclipse to autodeploy jars by adding your library as:
Project property->DeploymentAssembly->Add .


                        
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