1.项目功能展示

（1）注册

　　

（2）修改地址与级别信息，点击修改

　　 

（3）再添加一位成员，进行删除

点击第二行的删除

（4）登录模块测试

输入数据库中没有的信息：

输入数据库中存在的信息：

　　

2. Web.xml

　　Spring提供了ContextLoaderListener，该监听器实现了ServletContextListener接口，他在Web应用程序启动时被触发。当他创建时会自动查找WEB-INF/下的applicationContext.xml，所以当只有一个配置文件且文件名为applicationContext.xml时，则只需要在web.xml文件中配置ContextLoaderListener监听器即可.当有多个配置文件需要载入，则应该使用<context-param>元素指定配置文件的文件名，ContextLoaderListener加载时，会查找名为contextConfigLocation的初始化参数。当Web应用程序启动时先读取web.xml文件，然后创建spring容器，之后根据配置文件内容，装配Bean实例。

      
        
       
        ssh
         
             
        
         struts2
              
        
         org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter
          
         
             
        
         struts2
              
        
         /*
          
            
               
        
         org.springframework.web.context.ContextLoaderListener
          
           
             
        
         contextConfigLocation
              
        
         /WEB-INF/applicationContext.xml
          
         
           
        
         index.html
            
        
         index.htm
            
        
         index.jsp
            
        
         default.html
            
        
         default.htm
            
        
         default.jsp
          
       
      

3. 实体类与其映射文件

（1）Member.java

package com.entity;public class Member {    private long id;    private String name;    private String password;    private String address;    private String email;    private int level;    public Member(){}    public Member(String name,String password,String address,String email,int level){        this.name = name;        this.password = password;        this.address = address;        this.email = email;        this.level = level;    }    public long getId() {        return id;    }    public void setId(long id) {        this.id = id;    }    public String getName() {        return name;    }    public void setName(String name) {        this.name = name;    }    public String getPassword() {        return password;    }    public void setPassword(String password) {        this.password = password;    }    public String getAddress() {        return address;    }    public void setAddress(String address) {        this.address = address;    }    public String getEmail() {        return email;    }    public void setEmail(String email) {        this.email = email;    }    public int getLevel() {        return level;    }    public void setLevel(int level) {        this.level = level;    }    }

（2）Member.hbm.xml

4.DAO层

（1）接口MemberDAO.java

package com.dao;import java.util.List;import com.entity.Member;public interface MemberDAO {    public void add(Member member);    public void update(Member member);    public void delete(long id);    public Member findByName(String name,String password);    public Member findById(long id);    public List
      
        findAll();}
      

（2）实现类MemberDAOImpl.java(sessionFactory通过构造方法注入，使其可以操作数据库)

package com.dao;import java.util.List;import com.entity.Member;import org.hibernate.*;import org.springframework.beans.factory.annotation.Autowired;public class MemberDAOImpl implements MemberDAO {        private SessionFactory sessionFactory;        //构造方法注入SessionFactory对象    public MemberDAOImpl(SessionFactory sessionFactory) {        this.sessionFactory=sessionFactory;    }        //使用SessionFactory对象返回Session对象    public Session currentSession(){        return sessionFactory.openSession();    }    @Override    public void add(Member member) {        Session session=null;        try {            session=currentSession();            Transaction tx = session.beginTransaction();            session.save(member);            tx.commit();        } catch (HibernateException e) {            e.printStackTrace();        }finally{            session.close();        }    }    @Override    public void update(Member member) {        Session session=null;        try {            session=currentSession();            Transaction tx = session.beginTransaction();            session.update(member);            tx.commit();        } catch (HibernateException e) {            e.printStackTrace();        }finally{            session.close();        }    }    @Override    public void delete(long id) {        Session session=null;        try {            session=currentSession();            Transaction tx = session.beginTransaction();            Member mb = (Member)session.get(Member.class, id);            session.delete(mb);            tx.commit();        } catch (HibernateException e) {            e.printStackTrace();        }finally{            session.close();        }    }    @Override    public Member findByName(String name, String password) {        Session session=null;        Member result = null;        try {            session=currentSession();            Transaction tx = session.beginTransaction();            String hsql = " from Member m where m.name = :mname and m.password = :mpassword";            Query query = session.createQuery(hsql);            query.setParameter("mname", name);            query.setParameter("mpassword", password);            result = (Member)query.uniqueResult();            tx.commit();        } catch (HibernateException e) {            e.printStackTrace();        }finally{            session.close();        }        return result;    }    @Override    public Member findById(long id) {        Session session=null;        Member result = null;        try {            session=currentSession();            Transaction tx = session.beginTransaction();            String hsql = " from Member m where m.id = :id";            Query query = session.createQuery(hsql);            query.setParameter("id",id);            result = (Member)query.uniqueResult();            tx.commit();        } catch (HibernateException e) {            e.printStackTrace();        }finally{            session.close();        }        return result;    }    @Override    public List
      
        findAll() {        Session session=null;        List
       
         list = null;        try {            session=currentSession();            Transaction tx = session.beginTransaction();            String hsql = " from Member";            Query query = session.createQuery(hsql);            list = query.list();            tx.commit();        } catch (HibernateException e) {            e.printStackTrace();        }finally{            session.close();        }        return list;    }}
       
      

5.业务逻辑层

（1）接口MemberService.java

package com.service;import java.util.List;import com.entity.Member;public interface MemberService {    public void add(Member member);    public void update(Member member);    public void delete(long id);    public Member findByName(String name,String password);    public Member findById(long id);    public List
      
        findAll();}
      

（2）实现类MemberServiceImpl.java(设值注入DAO层组件)

package com.service;import java.util.List;import com.dao.MemberDAO;import com.entity.Member;public class MemberServiceImpl implements MemberService {    private MemberDAO memberDao;    //设值注入DAO对象    public void setMemberDao(MemberDAO memberDao) {        this.memberDao = memberDao;    }    @Override    public void add(Member member) {        if(memberDao.findById(member.getId())==null)            memberDao.add(member);    }    @Override    public void update(Member member) {        if(memberDao.findById(member.getId())!=null)            memberDao.update(member);    }    @Override    public void delete(long id) {        if(memberDao.findById(id)!=null)            memberDao.delete(id);    }    @Override    public Member findByName(String name, String password) {        return memberDao.findByName(name, password);    }    @Override    public Member findById(long id) {        return memberDao.findById(id);    }    @Override    public List
      
        findAll() {        return memberDao.findAll();    }}
      

6. Action类

（1）注册MemberRegisterAction.java（设值注入业务逻辑组件）

package com.action;import com.entity.Member;import com.opensymphony.xwork2.ActionSupport;import com.service.MemberService;public class MemberRegisterAction extends ActionSupport {    private Member member;    private MemberService memberService;    public Member getMember() {        return member;    }    public void setMember(Member member) {        this.member = member;    }    //注入业务逻辑组件    public void setMemberService(MemberService memberService) {        this.memberService = memberService;    }    public String execute(){        memberService.add(member);        return SUCCESS;    }    }

（2）删除MemberDeleteAction.java(设置注入业务逻辑组件，注意传入参数id的相应getter和setter方法)

package com.action;import com.opensymphony.xwork2.ActionSupport;import com.service.MemberService;public class MemberDeleteAction extends ActionSupport {    private MemberService memberService;    public void setMemberService(MemberService memberService) {        this.memberService = memberService;    }        private long id;    public long getId() {        return id;    }    public void setId(long id) {        this.id = id;    }    public String execute(){        memberService.delete(getId());        return SUCCESS;    }}

（3）查询MemberQueryAction.java(用于查看所有会员信息)

package com.action;import java.util.List;import org.apache.struts2.ServletActionContext;import com.entity.Member;import com.opensymphony.xwork2.ActionSupport;import com.service.MemberService;public class MemberQueryAction extends ActionSupport {    private MemberService memberService;    public void setMemberService(MemberService memberService) {        this.memberService = memberService;    }    public String execute(){        List
      
        list = memberService.findAll();        ServletActionContext.getRequest().setAttribute("memberList", list);        return SUCCESS;    }}
      

（4）修改MemberUpdateAction.java(有两个方法，execute（）和showMember（），当需要修改时，showMember（）方法转向update.jsp.并设置好需要修改的对象，修改完成之后，由spring托管的memberUpdateAction组件执行execute方法进行update操作)

package com.action;import com.entity.Member;import com.opensymphony.xwork2.ActionSupport;import com.service.MemberService;public class MemberUpdateAction extends ActionSupport {    private MemberService memberService;    private Member member;    private long id;    public void setMemberService(MemberService memberService) {        this.memberService = memberService;    }    public Member getMember() {        return member;    }    public void setMember(Member member) {        this.member = member;    }    public long getId() {        return id;    }    public void setId(long id) {        this.id = id;    }    public String showMember(){        Member mb = memberService.findById(getId());        setMember(mb);        return SUCCESS;    }    public String execute(){        memberService.update(member);        return SUCCESS;    }}

（5）登录MemberLoginAction.java（将输入的信息与数据库中进行比较）

package com.action;import com.entity.Member;import com.opensymphony.xwork2.ActionSupport;import com.service.MemberService;public class MemberLoginAction extends ActionSupport {    private Member member;    private MemberService memberService;    public Member getMember() {        return member;    }    public void setMember(Member member) {        this.member = member;    }    //注入业务逻辑组件    public void setMemberService(MemberService memberService) {        this.memberService = memberService;    }        public String execute(){        Member mb =memberService.findByName(member.getName(), member.getPassword());        if(mb!=null)            return SUCCESS;        else            return ERROR;    }}

7.struts.xml

　　spring托管将Struts2中的Action的实例化工作交由Spring容器统一管理，同时使Struts2中的Action实例能够访问Spring提供的业务逻辑资源，spring容器依赖注入的优势也可以体现，Struts2提供的spring插件struts2-spring-plugin-2.3.16.3.jar配合<constant name="struts.objectFactory" value="spring">使得Struts2的action由Spring来负责进行实例化.

      
          
               
               
               
                
                    
         
          /memberQuery
                 
                        
                    
         
          /welcome.jsp
                     
         
          /register.jsp
                 
                        
                    
         
          /displayAll.jsp
                 
                        
                    
         
          /memberQuery
                 
                        
                    
         
          /update.jsp
                 
                        
                    
         
          /memberQuery
                 
            
       
      

8.applicationContext.xml

　　spring 框架提供了多种数据源类，可以使用spring提供的DriverManagerDataSource类还可以使用第三方数据源，如C3P0的ComboPooledDataSource数据源类，注意相应的两个jar包c3p0-0.9.2.1.jar mchange-commons-java-0.2.3.4.jar.

　　Hibernate4已经完全实现自己的事物管理，所以spring4不提供HibernateDaoSupport和HibernateTemplete的支持。可以在应用程序的spring上下文中，像配置其他bean那样来配置HibernateSession工厂。如果要使用XML文件定义对象与数据库之间的映射，则需要在spring中配置LocalSessionFactoryBean。hibernateProperties属性配置了Hibernate如何进行操作的细节。"hibernate.current_session_context_class"是为当前Session提供一个策略，Session由org.springframework.orm.hibernate4.SpringSessionContext.currentSession得到。将sessionFactory注入到其他Bean中，如注入到DAO组件中，使其获得SessionFactory的引用后，就可以实现对数据库的访问。

      
          
               
                
                
                
                
                
                
                
            
               
               
                
                    
                         
          
           com/entity/Member.hbm.xml
                      
                 
                
                    
                         
          
           true
                          
          
           update
                          
          
           false
                          
          
                               org.springframework.orm.hibernate4.SpringSessionContext                
                          
          
           org.hibernate.dialect.MySQLDialect
                      
                 
            
                   
           
                
                    
                 
            
                   
           
                
            
                   
           
                
            
               
               
            
               
               
            
               
               
            
               
               
            
       
      

9.jsp

（1）注册register.jsp

<%@ page language="java" contentType="text/html; charset=UTF-8"    pageEncoding="UTF-8"%><%@ taglib prefix="s" uri="/struts-tags" %>
          
              
       
        
        
               
               
               
               
               
               
           
      

（2）所有会员信息displayAll.jsp

<%@ page language="java" contentType="text/html; charset=UTF-8"    pageEncoding="UTF-8"%><%@ taglib prefix="s" uri="/struts-tags" %>
          
会员信息
    
                      
      
      
               
        
                     
会员id
         
会员名
         
密码
         
地址
         
邮箱
         
级别
         
删除
         
修改
                
                    
                             
          
                             
          
                             
          
                             
          
                             
          
                             
          
                                                 
                        
           
            
                                   ">删除                    
                             
                        
           
            
                                   ">修改                    
                        
                       
      
    返回注册页面

（3）修改页面update.jsp

　　注意：不允许修改会员id，当需要将会员id传递给更新会员动作，所以使用隐藏表单域标签来接收显示会员页面传递来的会员id在update.jsp页面提交时再传递给更新会员的动作memberUpdate。

<%@ page language="java" contentType="text/html; charset=UTF-8"    pageEncoding="UTF-8"%><%@ taglib prefix="s" uri="/struts-tags" %>
          
              
       
        
        
                       
               
               
               
               
               
               
           
      

（4）登录login.jsp

<%@ page language="java" contentType="text/html; charset=UTF-8"    pageEncoding="UTF-8"%><%@ taglib prefix="s" uri="/struts-tags" %>
          
              
               
               
           
      

（5）welcome.jsp

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

 

10. END

　　github地址：（https://github.com/byzhaozihan/s2sh_entry-level）

　　本篇案例算是最简单的ssh整合，注入形式也都一目了然，如果对你有帮助，请点赞或关注我，谢谢观看！