SSH---整合Struts2&Spring&Hibernate(实例)
一.SSH回顾
Struts2:核心为过滤器+拦截器。过程:Filter--->FilterDispatcher-->ActionMapper-->ActionProxy-->ActionInvocation-->各种拦截器。
Struts2初用无需过于执著细节,我们只需要知道,它就是用来负责处理请求!在原生Servlet、Serviec、Dao中,它负责Servlet的工作!
Spring:核心为IOC+DI+AOP。原理细节复杂,但道理和目的很明确简单!它的功能就是2个:1)方便地创建对象;2)方便加功能!
Hibernate:核心为通过配置各种映射关系,将Dao层操作,从操作数据库表格转换为操作java对象!它就是封装了JDBC操作数据库那一套操作!
作为初学,必须掌握它们的核心。操作问题必须通过多敲代码熟练并体会。
二、整合Struts2&Spring&Hibernate(实例)
本例目的:用SSH完成往数据库插入数据。
过程说明:在本例当中,用Sturts2的Action类处理请求,调用service处理;在dao层,利用Spring做的 Hibernate模板完成数据库操作;而各个类之间的对象创建,利用Spring的IOC和DI完成,简单来说,就是只在类中声名该对象,创建什么的工作,我们只负责配置即可!
结构说明:本例将源码列出,直接从源码体会,部分代码给出注释。
1 环境准备
jar包:过多,略。后期指望Maven完成
数据库:
CREATE TABLE `bbb` (
`id` int(11) NOT NULL AUTO_INCREMENT,
`category` varchar(100) DEFAULT NULL,
PRIMARY KEY (`id`)
)
2 源码
1)持久类对象:bean对象
package gaga.bean; import javax.persistence.*; /**
* @author Vincent
* @Description:
* @create 2018-02-05 20:15
*/
@Entity
@Table(name = "bbb", schema = "spring")
public class BbbEntity {
@Id
@Column(name = "id")
private int id; @Column(name = "category")
private String category; public int getId() {
return id;
} public void setId(int id) {
this.id = id;
} public String getCategory() {
return category;
} public void setCategory(String category) {
this.category = category;
} @Override
public String toString() {
return "BbbEntity{" +
"id=" + id +
", category='" + category + '\'' +
'}';
}
}
2)Action类
package gaga.test; import com.opensymphony.xwork2.ActionSupport;
import gaga.bean.BbbEntity;
import gaga.service.UserService;
import org.springframework.context.annotation.Scope;
import org.springframework.stereotype.Controller; import javax.annotation.Resource; /**
* @author Vincent
* @Description:
* @create 2018-02-05 15:18
*/
@Scope("prototype")
@Controller
public class ActionDemo extends ActionSupport { @Resource(name = "us")
private UserService userService; /**
* 在Dao层保存数据,保存对象遗留到dao层直接创建处理
*
* @return
*/
public String save() {
System.out.println("ActionDemo#save......");
userService.save();
return NONE;
} /**
* 懒加载查询数据,条件遗留在dao层处理
*
* @return
*/
public String loadSave() {
System.out.println("Action#loadSave......");
BbbEntity bbbEntity = userService.loadSave();
System.out.println("loadSave result--->" + bbbEntity);
return NONE;
}
}
3)Service接口
package gaga.service; import gaga.bean.BbbEntity; /**
* @author Vincent
* @Description:
* @create 2018-02-05 16:02
*/
public interface UserService {
void save(); BbbEntity loadSave();
}
4)Service接口实现类
package gaga.service.serviceImpl; import gaga.bean.BbbEntity;
import gaga.dao.UserDao;
import gaga.service.UserService;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional; import javax.annotation.Resource; /**
* @author Vincent
* @Description:
* @create 2018-02-05 16:03
*/
@Transactional
@Service("us")
public class UserServiceImpl implements UserService { @Resource(name = "userDao")
private UserDao userDao; @Override
public void save() {
System.out.println("UserServiceImpl#save....");
userDao.save(); } @Override
public BbbEntity loadSave() {
return userDao.loadSave();
}
}
5)Dao接口
package gaga.dao; import gaga.bean.BbbEntity; /**
* @author Vincent
* @Description:
* @create 2018-02-05 16:06
*/
public interface UserDao {
void save(); BbbEntity loadSave();
}
6)Dao接口实现类
package gaga.dao.UserDaoImpl; import gaga.bean.BbbEntity;
import gaga.dao.UserDao;
import org.springframework.orm.hibernate5.support.HibernateDaoSupport; /**
* @author Vincent
* @Description:
* @create 2018-02-05 16:09
*/ public class UserDaoImpl extends HibernateDaoSupport implements UserDao { @Override
public void save() {
System.out.println("UserDaoImpl#save....."); BbbEntity user = new BbbEntity();
user.setCategory("eeeeee"); getHibernateTemplate().save(user); } @Override
public BbbEntity loadSave() {
System.out.println("UserDaoImpl#loadSave");
BbbEntity load = getHibernateTemplate().load(BbbEntity.class, 60); return load;
}
}
7)jdbc.properties(抽取出来,方便维护)
driverClass=com.mysql.jdbc.Driver
jdbcUrl=jdbc:mysql:///spring
user=root
password=123
8)log4j.properties(日志处理配置)
##\u8BBE\u7F6E\u65E5\u5FD7\u8BB0\u5F55\u5230\u63A7\u5236\u53F0\u7684\u65B9\u5F0F
log4j.appender.s=org.apache.log4j.ConsoleAppender
log4j.appender.s.Target=System.err
log4j.appender.s.layout=org.apache.log4j.PatternLayout
log4j.appender.s.layout.ConversionPattern=%d{yyyy-MM-dd HH:mm:ss,SSS} %5p %c{1}:%L - %m%n ##\u8BBE\u7F6E\u65E5\u5FD7\u8BB0\u5F55\u5230\u6587\u4EF6\u7684\u65B9\u5F0F
log4j.appender.file=org.apache.log4j.FileAppender
log4j.appender.file.File=mylog.log
log4j.appender.file.layout=org.apache.log4j.PatternLayout
log4j.appender.file.layout.ConversionPattern=%d{yyyy-MM-dd HH:mm:ss,SSS} %5p %c{1}:%L - %m%n ##\u65E5\u5FD7\u8F93\u51FA\u7684\u7EA7\u522B\uFF0C\u4EE5\u53CA\u914D\u7F6E\u8BB0\u5F55\u65B9\u6848
log4j.rootLogger=info, s, file
9)applicationContext.xml
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:context="http://www.springframework.org/schema/context"
xmlns:tx="http://www.springframework.org/schema/tx"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx.xsd
http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd "> <context:component-scan base-package="gaga"/> <bean id="userDao" class="gaga.dao.UserDaoImpl.UserDaoImpl">
<property name="sessionFactory" ref="sessionFactory"/>
</bean> <bean id="sessionFactory" class="org.springframework.orm.hibernate5.LocalSessionFactoryBean"> <property name="dataSource" ref="dataSource"/> <property name="hibernateProperties">
<props>
<prop key="hibernate.dialect">org.hibernate.dialect.MySQL5Dialect</prop>
<prop key="hibernate.show_sql">true</prop>
<prop key="hibernate.format_sql">true</prop>
<prop key="hibernate.hbm2ddl.auto">update</prop>
</props>
</property> <!--注解中找映射关系-->
<property name="packagesToScan" value="gaga.bean"/>
</bean> <context:property-placeholder location="classpath:jdbc.properties"/> <bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource">
<property name="driverClass" value="${driverClass}"/>
<property name="jdbcUrl" value="${jdbcUrl}"/>
<property name="user" value="${user}"/>
<property name="password" value="${password}"/>
</bean> <bean id="transactionManager" class="org.springframework.orm.hibernate5.HibernateTransactionManager">
<property name="sessionFactory" ref="sessionFactory"/>
</bean> <tx:annotation-driven transaction-manager="transactionManager"/> </beans>
10)struts.xml
<?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE struts PUBLIC
"-//Apache Software Foundation//DTD Struts Configuration 2.3//EN"
"http://struts.apache.org/dtds/struts-2.3.dtd"> <struts>
<package name="struts2" namespace="/" extends="struts-default">
<action name="user_*" class="actionDemo" method="{1}"></action>
</package>
</struts>
11)web.xml
<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns="http://xmlns.jcp.org/xml/ns/javaee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd"
version="3.1">
<listener>
<!--监听项目启动,即初始化applicationContext配置文件-->
<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:applicationContext.xml</param-value>
</context-param> <!-- 这个过滤器,必须放在struts的过滤器的前面配置:配置处理懒加载问题 -->
<filter>
<filter-name>openSession</filter-name>
<filter-class>org.springframework.orm.hibernate5.support.OpenSessionInViewFilter</filter-class>
</filter> <filter-mapping>
<filter-name>openSession</filter-name>
<url-pattern>*.action</url-pattern>
</filter-mapping> <filter>
<filter-name>Struts2</filter-name>
<filter-class>org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter</filter-class>
</filter>
<filter-mapping>
<filter-name>Struts2</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
</web-app>
3. 运行结果
访问:http://localhost:8080/user_save
访问成功,数据库插入一条数据
访问:http://localhost:8080/user_loadSave.action.loadSave
访问成功,成功过查出id为64的结果:result--->BbbEntity{id=64, category='eeeeee'}
SSH---整合Struts2&Spring&Hibernate(实例)的更多相关文章
- 整合struts2+spring+hibernate
一.准备struts2+spring+hibernate所须要的jar包: 新建web项目并将jar包引入到project项目中. 二.搭建struts2环境 a.在 ...
- Eclipse搭建SSH(Struts2+Spring+Hibernate)框架教程
| 版权声明:本文为博主原创文章,未经博主允许不得转载. 前言 确实,刚创博客,对于这个陌生的东西还是有些许淡然.这是我的第一篇博文,希望能给你们有帮助,这就是我最大的乐趣! 好了下面进入正题: SS ...
- SSH之IDEA2017整合Struts2+Spring+Hibernate
转自:https://blog.csdn.net/sysushui/article/details/68937005
- Eclipse搭建SSH框架(Struts2+Spring+Hibernate)
见识少的我经过一天多的研究才知道,在MyEclipse中搭好的框架的配置文件和jar包是通用的.接下来——亮剑! 工具:Eclipse+Tomcat+Mysql 一.先在Eclipse中配置好Tomc ...
- 用MyEclipse搭建SSH框架(Struts2 Spring Hibernate)
1.new一个web project. 2.右键项目,为项目添加Struts支持. 点击Finish.src目录下多了struts.xml配置文件. 3.使用MyEclipse DataBase Ex ...
- Spring、Struts2+Spring+Hibernate整合步骤
所使用的Jar包: Hibernate: Spring(使用MyEclipse自动导入框架功能) Struts2: 注解包和MySql驱动包: 1.配置Hibernate和Spring: <be ...
- Maven搭建struts2+spring+hibernate环境
Maven搭建struts2+spring+hibernate环境(一) 本文简单的使用STS的自带的maven插件工具搭建ssh(struts2+spring+hibernate)开发环境,图文并茂 ...
- SSH三大框架的搭建整合(struts2+spring+hibernate)(转)
原文地址:http://blog.csdn.net/kyle0349/article/details/51751913 尊重原创,请访问原文地址 SSH说的上是javaweb经典框架,不能说100% ...
- SSH(Struts2+Spring+Hibernate)框架搭建流程<注解的方式创建Bean>
此篇讲的是MyEclipse9工具提供的支持搭建自加包有代码也是相同:用户登录与注册的例子,表字段只有name,password. SSH,xml方式搭建文章链接地址:http://www.cnblo ...
随机推荐
- mount: wrong fs type
# mount -t nfs -o nolock 192.168.1.84:/home/jason/filesys /mnt/nfsmount: wrong fs type, bad option, ...
- HTML5裁剪图片并上传至服务器实现原理讲解
HTML5裁剪图片并上传至服务器实现原理讲解 经常做项目需要本地上传图片裁剪并上传服务器,比如会议头像等功能,但以前实现这类需求都很复杂,往往需要先把图片上传到服务器,然后返回给用户,让用户确定裁 ...
- /etc/profile与/etc/bashrc、交互式与非交互式、login与non-login shell的差别
线上的memcached又挂了.仍然没有得到core文件. 排查原因,同事发现启动memcached的脚本存在可疑问题. 问题一:没有设置memcached工作文件夹,有可能core dump时没有工 ...
- android.view.View
* This class represents the basic building block for user interface components. A View * occupies a ...
- 显示 目录 大小 du
[root@hadoop1 /]# du -BG -d 11G ./boot0G ./dev63G ./homedu: 无法访问"./proc/6689/task/6689/fd/4&qu ...
- ABAP 邮件
function zint_send_email.*"-------------------------------------------------------------------- ...
- Basic Queries (LINQ to XML)
https://docs.microsoft.com/en-us/dotnet/csharp/programming-guide/concepts/linq/basic-queries-linq-to ...
- bacth参数说明 cmd parameter
http://www.robvanderwoude.com/parameters.php Windows NT 4 introduced a set of new features for comma ...
- 调整多个控件的dock的顺序
https://stackoverflow.com/questions/2607508/how-to-control-docking-order-in-winforms Go to View -> ...
- 【HDU 1599】 Find the mincost route
[题目链接] 点击打开链接 [算法] 弗洛伊德求最小环模板 我们知道,在一个环上,一定有一个有且仅有一个编号最大的点,设这个点为k,起点为i,终点为j,那么 mincost = dist[i][j] ...