SSH2快速整合(最新)

引述
SSH，是最简单的Struts2+Spring3+Hibernate3 数据库使用的是[MySQL。分别列出整合需要的jar 包.

** struts2.5**:

asm-5.1.jar
asm-commons-5.1.jar
asm-tree-5.1.jar
commons-fileupload-1.3.2.jar
commons-io-2.4.jar
commons-lang-2.4.jar
commons-lang3-3.4.jar
commons-logging-1.1.3.jar
freemarker-2.3.23.jar
javassist-3.20.0-GA.jar
json-lib-2.3-jdk15.jar
list.txt
log4j-api-2.7.jar
log4j-core-2.3.jar
ognl-3.1.12.jar
slf4j-api-1.7.12.jar
struts2-convention-plugin-2.5.10.1.jar
struts2-core-2.5.10.1.jar
struts2-json-plugin-2.5.10.1.jar
struts2-spring-plugin-2.5.10.1.jar

---

Hibernate5:

antlr-2.7.7.jar
cdi-api-1.1.jar
classmate-1.3.0.jar
dom4j-1.6.1.jar
el-api-2.2.jar
geronimo-jta_1.1_spec-1.1.1.jar
hibernate-commons-annotations-5.0.1.Final.jar
hibernate-core-5.2.2.Final.jar
hibernate-jpa-2.1-api-1.0.0.Final.jar
jandex-2.0.0.Final.jar
javassist-3.20.0-GA.jar
javax.inject-1.jar
jboss-interceptors-api_1.1_spec-1.0.0.Beta1.jar
jboss-logging-3.3.0.Final.jar
jsr250-api-1.0.jar
list.txt
mysql-connector-java-5.1.7-bin.jar

---

spring 4.3.8

aopalliance.jar
aspectjweaver.jar
commons-logging-1.1.1.jar
list.txt
spring-aop-4.3.8.RELEASE.jar
spring-aspects-4.3.8.RELEASE.jar
spring-beans-4.3.8.RELEASE.jar
spring-context-4.3.8.RELEASE.jar
spring-context-support-4.3.8.RELEASE.jar
spring-core-4.3.8.RELEASE.jar
spring-expression-4.3.8.RELEASE.jar
spring-instrument-4.3.8.RELEASE.jar
spring-instrument-tomcat-4.3.8.RELEASE.jar
spring-jdbc-4.3.8.RELEASE.jar
spring-jms-4.3.8.RELEASE.jar
spring-messaging-4.3.8.RELEASE.jar
spring-orm-4.3.8.RELEASE.jar
spring-oxm-4.3.8.RELEASE.jar
spring-test-4.3.8.RELEASE.jar
spring-tx-4.3.8.RELEASE.jar
spring-web-4.3.8.RELEASE.jar
spring-webmvc-4.3.8.RELEASE.jar
spring-webmvc-portlet-4.3.8.RELEASE.jar
spring-websocket-4.3.8.RELEASE.jar

---

配置web.xml

    SSH2
    
        index.html
        index.htm
        index.jsp
        default.html
        default.htm
        default.jsp
    
    
     
        action2
        org.apache.struts2.dispatcher.filter.StrutsPrepareAndExecuteFilter
    
    
        action2
        /*
    
    
    
        contextConfigLocation
        classpath:ApplicationContext.xml
    
    
    org.springframework.web.context.ContextLoaderListener
    

---

配置struts2.xml

      
      
      
      
      
      
    
    
        
            /index.jsp
        
    
 

---

配置ApplicationContext.xml

    
    
        
        
        
        
    
    
    
    
    
    
    
       
          
        
        
        
          
        
    
    
        
        
        
        
            
                org.hibernate.dialect.MySQL5Dialect
                true
                true
                false
                
                
                update
            
        
        
            
            
                ssh/entity/User.hbm.xml
            
            
    
    
    
        
    
    
    

---

采用最新的SSH配置需要配置log，避免输出警告

• log4j.properties

log4j.rootLogger=WARN, stdout
log4j.appender.stdout=org.apache.log4j.ConsoleAppender
log4j.appender.stdout.layout=org.apache.log4j.PatternLayout
log4j.appender.stdout.layout.ConversionPattern=%d %p [%c] - %m%n

• log4j2.xml

---

在环境搭建完成以后编写测试文件

package test;

import org.hibernate.SessionFactory;
import org.springframework.context.support.ClassPathXmlApplicationContext;

public class testdemo {
    @SuppressWarnings("resource")
    public static void main(String[] args) {
        ClassPathXmlApplicationContext context = new ClassPathXmlApplicationContext("ApplicationContext.xml");
        SessionFactory bean = (SessionFactory) context.getBean("mysessionFactory");
        System.out.println(bean);
    }
}

---

进行项目分层

• 实体User

// default package
// Generated 2017-6-3 22:03:50 by Hibernate Tools 5.2.3.Final
package ssh.entity;
import java.util.Date;

/**
 * User generated by hbm2java
 */
public class User implements java.io.Serializable {

    /**
     * 
     */
    private static final long serialVersionUID = 1L;
    private Integer id;
    private String password;
    private Integer qqnumber;
    private String username;
    private Date time;

    public User() {
    }

    public User(String password, Integer qqnumber, String username, Date time) {
        this.password = password;
        this.qqnumber = qqnumber;
        this.username = username;
        this.time = time;
    }

    @Override
    public String toString() {
        return "User [id=" + id + ", password=" + password + ", qqnumber="
                + qqnumber + ", username=" + username + ", time=" + time + "]";
    }

    public Integer getId() {
        return this.id;
    }

    public void setId(Integer id) {
        this.id = id;
    }

    public String getPassword() {
        return this.password;
    }

    public void setPassword(String password) {
        this.password = password;
    }

    public Integer getQqnumber() {
        return this.qqnumber;
    }

    public void setQqnumber(Integer qqnumber) {
        this.qqnumber = qqnumber;
    }

    public String getUsername() {
        return this.username;
    }

    public void setUsername(String username) {
        this.username = username;
    }

    public Date getTime() {
        return this.time;
    }

    public void setTime(Date time) {
        this.time = time;
    }

}

• 实体映射

• DAO层实现类

package ssh.daoimpl;

import java.util.List;

import org.hibernate.Session;
import org.hibernate.SessionFactory;
import org.springframework.transaction.annotation.Transactional;

import ssh.dao.UserDao;
import ssh.entity.User;

//创建IndexDaoImpl(实现类)实现IndexDao接口
@Transactional
public class UserDaoimpl implements UserDao {

    // 在SSH的设计理念：要使用某个实例，那么就定义声明一个对象，然后
    // 给它添加set方法（用于spring注入进来）
    // 实现不要关注这个实例来自于那里，以及怎么创建，或者它是谁
    private SessionFactory sessionFactory;

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

    @SuppressWarnings("deprecation")
    @Override
    public List getAllUser() {
        // sessionFactory这个实例可以自己按常规的hibernate传统写法创建
        // 也可以交给spring去托管
        /*
         * onfiguration cfg = new Configuration().configure(); sessionFactory =
         * cfg.buildSessionFactory();
         */
        // 获取session
        Session session = sessionFactory.getCurrentSession();
        // 后面当使用JPA的时候，EntityManager 类似于 Session
        List list = session.createQuery("from User").list();
        for (User user : list) {
            System.out.println(user.toString());
        }
        
        return list;
    }

}

• Sevices实现类

package ssh.serviceimpl;

import java.util.List;

import ssh.dao.UserDao;
import ssh.entity.User;
import ssh.service.IndexService;

//创建IndexServiceImpl(实现类)实现IndexService接口
public class IndexServiceImpl implements IndexService {

    // dao实例使用注入方式
    private UserDao dao;

    // 用于注入使用
    public void setDao(UserDao dao) {
        this.dao = dao;
    }
    // 本类应该编写业务逻辑的代码，
    // 但本例没有业务逻辑，就不用写。
    // 访问数据库的代码，不会出现在service这一层
    // 交给dao来操作数据库

    @Override
    public List getAllUser() {
        // 进行其它的业务逻辑操作，比如增加多一个选项，是否过期
        // 本例不需要
        // ....
        List list = dao.getAllUser();
        return list;
    }

}

• Action 实现类 这里采用的spring来管理的action的实例，主要可以进行aop加强操作

package action;

import java.util.List;

import com.opensymphony.xwork2.ActionContext;
import com.opensymphony.xwork2.ActionSupport;

import ssh.entity.User;
import ssh.service.IndexService;

public class registerAction extends ActionSupport{
    //声明service，但不给它创建具体的实现类的实例，
    private IndexService indexService;
     //添加set()方法
    public void setIndexService(IndexService indexService) {
        this.indexService = indexService;
    }

    /**
     * //编写execute()方法
     */
    private static final long serialVersionUID = 1L;

    @Override
    public String execute() throws Exception {
        List list = indexService.getAllUser();
        ActionContext context = ActionContext.getContext();
        context.put("userlist", list);
        return ActionSupport.SUCCESS;
    }
    
    

}

• jsp显示层

<%@ page language="Java" contentType="text/html; charset=UTF-8"
    pageEncoding="UTF-8"%>
<%@ taglib prefix="s"  uri="/struts-tags"%>
<%
    String path = request.getContextPath();
    String basePath = request.getScheme() + "://"
            + request.getServerName() + ":" + request.getServerPort()
            + path + "/";
%>












    
        
    

SSH的搭建到此结束了，在开发中，不能采用spring提供的jdbc的支持，应采用数据库连接池，并且继承 spring 提供相应的 Dao 模版