简单的SSH三大框架整合

项目结构图

首先需要在WEB-INF下创建lib包，导入SSH项目整合jar包

云盘链接：https://pan.baidu.com/s/1MEla6fzTLH3pSDMZvqqv5Q

 提取码：5zka

接下来配置WEB-INF=>web.xml

    
    
        org.springframework.web.context.ContextLoaderListener
    

    
    
        contextConfigLocation
        classpath:applicationContext.xml
    

    
        struts2
        org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter
    

    
        struts2
        
    public String save() {
        userService.addName(names);
        return NONE;
    }

    public String delete(){
        userService.deleteName(names);
        return "index";
    }
}

写到这里启动Tomcat看项目测试项目是否能够正常启动，和能否进入controller层

配置resources=>hibernate.cfg.xml

    
        
        com.mysql.jdbc.Driver
        jdbc:mysql://localhost:3306/m?serverTimezone=UTC&characterEncoding=utf-8
        root
        
        
        org.hibernate.dialect.SQLServer2008Dialect

        
        5

        
        true

        
        true

        
        update

        
        
    

创建com.tang.pojo=>Names.java

package com.tang.pojo;

public class Names {

    private Integer id;
    private String name;
    
}

写完实体类后配置names.hbm.xml

com.dao=>UserDao.java

package com.tang.dao;

import com.tang.pojo.Names;

import java.util.List;

public interface UserDao {

    boolean addName(Names names);

    boolean deleteName(int id);

    boolean updateName(Names names);

    List namesList();
}

com.tang.dao.Impl=>UserDaoImpl.java

package com.tang.dao.Impl;

import com.tang.dao.UserDao;
import com.tang.pojo.Names;
import org.hibernate.*;
import org.hibernate.classic.Session;

import java.util.List;

public class UserDaoImpl implements UserDao {

    private SessionFactory sessionFactory;

    public void setSessionFactory(SessionFactory sessionFactory) {
        this.sessionFactory = sessionFactory;
    }

    @Override
    public boolean addName(Names names) {
        System.out.println("UserDaoImpl=>addName()");
        Session session = sessionFactory.openSession();
        Transaction ts = session.beginTransaction();
        try {
            session.save(names);
            ts.commit();
            return true;
        } catch (Exception e) {
            e.printStackTrace();
            ts.rollback();
            System.out.println(e);
        }
        return false;
    }

    @Override
    public boolean deleteName(int id) {
        System.out.println("UserDaoImpl=>delete()");
        Session session = sessionFactory.openSession();
        Transaction ts = session.beginTransaction();
        try {
            Names names = (Names) session.get(Names.class, id);
            session.delete(names);
            ts.commit();
            return true;
        } catch (Exception e) {
            e.printStackTrace();
            ts.rollback();
            System.out.println(e);
        }
        return false;
    }

    @Override
    public boolean updateName(Names names) {
        return false;
    }

    @Override
    public List namesList() {
        List namesList=null;
        Session session = sessionFactory.openSession();
        try {
            Transaction tx = session.beginTransaction();
            Query query = session.createQuery("from Names");
            namesList = query.list();
            tx.commit();
        } catch (HibernateException e) {
            System.out.println(e);
        }
        return namesList;
    }
}

com.tang.service=>UserService.java

package com.tang.service;

import com.tang.pojo.Names;
import java.util.List;

public interface UserService {

    boolean addName(Names names);

    boolean deleteName(Names names);

    boolean updateName();

    List namesList();
}

com.tang.service.Impl=>UserServiceImpl.java

package com.tang.service.Impl;

import com.tang.dao.UserDao;
import com.tang.pojo.Names;
import com.tang.service.UserService;
import org.springframework.transaction.annotation.Transactional;

import java.util.List;

@Transactional  //作用于类，那么整个类的所有方法度开启事务
public class UserServiceImpl implements UserService {

    private UserDao userDao;

    public void setUserDao(UserDao userDao) {
        this.userDao = userDao;
    }

    @Override
    public boolean addName(Names names) {
        userDao.addName(names);
        return true;
    }

    @Override
    public boolean deleteName(Names names) {
        userDao.deleteName(names.getId());
        return true;
    }

    @Override
    public boolean updateName() {
        return false;
    }

    @Override
    public List namesList() {
        return null;
    }
}

简单的增加页面 web=>index.jsp

<%@ page contentType="text/html;charset=UTF-8" language="java" %>

  
    
  
  
      

        姓名：
          
      
  

简单的删除页面 web=>a.jsp

<%@ page contentType="text/html;charset=UTF-8" language="java" %>


    


    

      
      
    

结论：整合时，敲代码须步步为营，写一步测一步，这样最能节省时间，也能最大程度提高效率，减少出现bug的概率，就算出现了bug，也能轻松找到bug所在的位置。