Struts2.1+Spring3.0+JPA1.0(Hibernate3.3实现)例子

最新推荐文章于 2024-11-03 16:28:06 发布

最新推荐文章于 2024-11-03 16:28:06 发布 · 187 阅读

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#Hibernate #Struts #Spring #Bean #JSP

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本文通过一个实战项目演示了如何整合Struts2、Spring3与Hibernate3等技术，实现了一个包含增删改查功能的简单应用。文章详细介绍了项目的搭建过程、核心代码及配置。

本文代码是传智播客黎活明老师所讲的《Spring2.5视频教程》各种示例的综合，在此把所有框架升级到最新版本整合一下。

所用jar包：

Struts：

struts-2.1.8.1

\lib下除了各种plugin(保留struts2-spring-plugin-2.1.8.1.jar)的所有文件

Spring：

spring-framework-3.0.0.RELEASE

\dist下的所有文件

Hibernate：

hibernate-distribution-3.3.2.GA下的hibernate3.jar

\lib\bytecode\cglib下的cglib-2.2.jar

\lib\optional\ehcache下的ehcache-1.2.3.jar

\lib\required下的所有文件

hibernate-annotations-3.4.0.GA下的hibernate-annotations.jar

\lib下的ejb3-persistence.jar，hibernate-commons-annotations.jar

hibernate-entitymanager-3.4.0.GA下的hibernate-entitymanager.jar

\lib\test下的log4j.jar，slf4j-log4j12.jar

MySQL：mysql-connector-java-5.1.10-bin.jar

JUnit：4

JDK：jdk-6u14-windows-i586.exe

Tomcat：apache-tomcat-6.0.18.zip

项目名：test

Person.java

package com.test.bean;

import java.io.Serializable;

import javax.persistence.Column;
import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.Id;
 
@Entity
public class Person implements Serializable {
	private Integer id;
	private String name;
	
	public Person(){}
	
	public Person(String name){
		this.name = name;
	}
	
	@Id @GeneratedValue
	public Integer getId() {
		return id;
	}

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

	@Column(length=10,nullable=false)
	public String getName() {
		return name;
	}

	public void setName(String name) {
		this.name = name;
	}
	
	@Override
	public int hashCode() {
		final int prime = 31;
		int result = 1;
		result = prime * result + ((id == null) ? 0 : id.hashCode());
		return result;
	}
	
	@Override
	public boolean equals(Object obj) {
		if (this == obj)
			return true;
		if (obj == null)
			return false;
		if (getClass() != obj.getClass())
			return false;
		final Person other = (Person) obj;
		if (id == null) {
			if (other.id != null)
				return false;
		} else if (!id.equals(other.id))
			return false;
		return true;
	}
	
}

PersonService.java

package com.test.service;

import java.util.List;

import com.test.bean.Person;

public interface PersonService {
	
	public void save(Person person);
	
	public void update(Person person);
	
	public void delete(Integer personid);
	
	public Person getPerson(Integer personid);
	
	@SuppressWarnings("unchecked")
	public List<Person> getPersons();
	
}

PersonServiceBean.java

package com.test.service.impl;

import java.util.List;

import javax.persistence.EntityManager;
import javax.persistence.PersistenceContext;

import org.hibernate.exception.SQLGrammarException;
import org.springframework.transaction.annotation.Propagation;
import org.springframework.transaction.annotation.Transactional;

import com.test.bean.Person;
import com.test.service.PersonService;

@Transactional
public class PersonServiceBean implements PersonService {

	@PersistenceContext EntityManager em;

	public void delete(Integer personid) {
		em.remove(em.getReference(Person.class, personid));

	}

	@Transactional(propagation = Propagation.NOT_SUPPORTED, readOnly = true)
	public Person getPerson(Integer personid) {
		return em.find(Person.class, personid);
		
	}

	@Transactional(propagation = Propagation.NOT_SUPPORTED, readOnly = true)
	@SuppressWarnings("unchecked")
	public List<Person> getPersons() throws SQLGrammarException {
		return em.createQuery("select o from Person o").getResultList();
		
	}

	public void save(Person person) {
		em.persist(person);

	}

	public void update(Person person) {
		em.merge(person);

	}

}

PersonAction.java

package com.test.web.action;

import java.util.List;

import javax.annotation.Resource;

import com.test.bean.Person;
import com.test.service.PersonService;

public class PersonAction {
	@Resource PersonService personService;
	private String message;
	private List<Person> persons;
	private Person person;
	
	public Person getPerson() {
		return person;
	}
	public void setPerson(Person person) {
		this.person = person;
	}
	/**
	 * 人员列表显示
	 */
	public String list(){
		this.persons = personService.getPersons();
		return "list";
	}
	/**
	 * 人员添加界面
	 */
	public String addUI(){
		return "add";
	}
	/**
	 * 人员添加
	 */
	public String add(){
		this.personService.save(this.person);
		this.message="添加成功";
		return "message";
	}
	public List<Person> getPersons() {
		return persons;
	}

	public void setPersons(List<Person> persons) {
		this.persons = persons;
	}

	public String getMessage() {
		return message;
	}

	public void setMessage(String message) {
		this.message = message;
	}
	
}

PersonServiceTest.java

package junit.test;

import java.util.List;

import org.junit.BeforeClass;
import org.junit.Test;
import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;

import com.test.bean.Person;
import com.test.service.PersonService;

public class PersonServiceTest {
	private static PersonService personService;

	@BeforeClass
	public static void setUpBeforeClass() throws Exception {
		try {
			ApplicationContext applicationContext = new ClassPathXmlApplicationContext("beans.xml");
			personService = (PersonService) applicationContext.getBean("personService");
		} catch (RuntimeException e) {
			e.printStackTrace();
		}
	}

	@Test
	public void testSave() {
		personService.save(new Person("小张"));
	}

	@Test
	public void testUpdate() {
		Person person = personService.getPerson(1);
		person.setName("小丽");
		personService.update(person);
	}

	@Test
	public void testGetPerson() {
		Person person = personService.getPerson(2);
		System.out.println(person.getName());
		try {
			System.out.println("请关闭数据库");
			Thread.sleep(1000 * 15);
		} catch (InterruptedException e) {
			e.printStackTrace();
		}
		System.out.println("第二次开始获取");
		person = personService.getPerson(2);
		System.out.println(person.getName());
	}

	@Test
	public void testDelete() {
		personService.delete(1);
	}

	@Test
	public void testGetPersons() {
		List<Person> persons = personService.getPersons();
		for (Person person : persons) {
			System.out.println(person.getName());
		}
	}

}

META-INF\persistence.xml

<?xml version="1.0" encoding="UTF-8"?>
<persistence xmlns="http://java.sun.com/xml/ns/persistence" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/persistence http://java.sun.com/xml/ns/persistence/persistence_1_0.xsd" version="1.0">
  <persistence-unit name="test" transaction-type="RESOURCE_LOCAL">
      <properties>
      	<!-- 数据库方言-->
        <property name="hibernate.dialect" value="org.hibernate.dialect.MySQL5Dialect"/>
		<!-- 数据库驱动 -->
        <property name="hibernate.connection.driver_class" value="org.gjt.mm.mysql.Driver"/>
		<!-- 数据库用户名 -->
        <property name="hibernate.connection.username" value="root"/>
		<!-- 数据库密码 -->
        <property name="hibernate.connection.password" value="1234"/>
		<!-- 数据库连接URL -->
        <property name="hibernate.connection.url" value="jdbc:mysql://localhost:3306/test?useUnicode=true&amp;characterEncoding=UTF-8"/>
		<!-- 最大抓取深度 -->
        <property name="hibernate.max_fetch_depth" value="3"/>
		<!-- 更新方式创建库表 -->
        <property name="hibernate.hbm2ddl.auto" value="update"/>
		<!-- 显示SQL -->
		<property name="hibernate.show_sql" value="true"/>
		<!-- 格式SQL -->
		<property name="hibernate.format_sql" value="true"/>
		<!-- 使用二级缓存 -->
		<property name="hibernate.cache.use_second_level_cache" value="true"/>
		<property name="hibernate.cache.use_query_cache" value="false"/>
		<property name="hibernate.cache.provider_class" value="org.hibernate.cache.EhCacheProvider"/>
      </properties>
  </persistence-unit>
</persistence>

src\beans.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:aop="http://www.springframework.org/schema/aop"
       xmlns:tx="http://www.springframework.org/schema/tx"
       xsi:schemaLocation="http://www.springframework.org/schema/beans
           http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
           http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.0.xsd
           http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-3.0.xsd
           http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-3.0.xsd">
	<context:annotation-config/>
	<bean id="entityManagerFactory" class="org.springframework.orm.jpa.LocalEntityManagerFactoryBean">
      <property name="persistenceUnitName" value="test"/>
    </bean>
    <bean id="txManager" class="org.springframework.orm.jpa.JpaTransactionManager">
  	  <property name="entityManagerFactory" ref="entityManagerFactory"/>
   </bean>
 	<tx:annotation-driven transaction-manager="txManager"/>
	<bean id="personService" class="com.test.service.impl.PersonServiceBean"/>
	<bean id="personAction" scope="prototype" class="com.test.web.action.PersonAction" />
</beans>

src\ehcache.xml

<?xml version="1.0" encoding="UTF-8"?>
<!-- 
     defaultCache节点为缺省的缓存策略
     maxElementsInMemory 内存中最大允许存在的对象数量
     eternal 设置缓存中的对象是否永远不过期
     overflowToDisk 把溢出的对象存放到硬盘上
     timeToIdleSeconds 指定缓存对象空闲多长时间就过期,过期的对象会被清除掉
     timeToLiveSeconds 指定缓存对象总的存活时间
     diskPersistent 当jvm结束是是否持久化对象
     diskExpiryThreadIntervalSeconds 指定专门用于清除过期对象的监听线程的轮询时间
 -->
<ehcache>
    <diskStore path="C:\cache"/>
    <defaultCache maxElementsInMemory="1000" eternal="false" overflowToDisk="true"
        timeToIdleSeconds="120"
        timeToLiveSeconds="180"
        diskPersistent="false"
        diskExpiryThreadIntervalSeconds="60"/>
	<cache name="com.test.bean.Person" maxElementsInMemory="100" eternal="false" 
	overflowToDisk="true" timeToIdleSeconds="300" timeToLiveSeconds="600" diskPersistent="false"/>
</ehcache>

src\struts.xml

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE struts PUBLIC
    "-//Apache Software Foundation//DTD Struts Configuration 2.1//EN"
    "http://struts.apache.org/dtds/struts-2.1.dtd">
<struts>
    <!-- 指定Web应用的默认编码集,相当于调用HttpServletRequest的setCharacterEncoding方法 -->
    <constant name="struts.i18n.encoding" value="UTF-8"/>
    <!-- 该属性指定需要Struts 2处理的请求后缀，该属性的默认值是action，即所有匹配*.action的请求都由Struts2处理。
    	如果用户需要指定多个请求后缀，则多个后缀之间以英文逗号（,）隔开。 -->
    <constant name="struts.action.extension" value="do"/>
    <!-- 设置浏览器是否缓存静态内容,默认值为true(生产环境下使用),开发阶段最好关闭 -->
    <constant name="struts.serve.static.browserCache" value="false"/>
    <!-- 当struts的配置文件修改后,系统是否自动重新加载该文件,默认值为false(生产环境下使用),开发阶段最好打开 -->
    <constant name="struts.configuration.xml.reload" value="true"/>
    <!-- 开发模式下使用,这样可以打印出更详细的错误信息 -->
    <constant name="struts.devMode" value="true" />
     <!-- 默认的视图主题 -->
    <constant name="struts.ui.theme" value="simple" />
    <constant name="struts.objectFactory" value="spring" />
    
 	<package name="person" extends="struts-default">
 		<global-results>
 			<result name="message">/page/message.jsp</result>
 		</global-results>
		
		<action name="action_*" class="personAction" method="{1}">
			<result name="list">page/personlist.jsp</result>
			<result name="add">page/addperson.jsp</result>
		</action>
		
    </package>
</struts>

WebContent\page\addperson.jsp

<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
<%@ taglib uri="/struts-tags" prefix="s" %>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
  <head>
   
    <title>人员添加</title>
    
	<meta http-equiv="pragma" content="no-cache">
	<meta http-equiv="cache-control" content="no-cache">
	<meta http-equiv="expires" content="0">    
	<meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
	<meta http-equiv="description" content="This is my page">
	<!--
	<link rel="stylesheet" type="text/css" href="styles.css">
	-->

  </head>
  
  <body>
   	<s:form action="action_add" namespace="/person">
   		名称:<s:textfield name="person.name"/>
   		<input type="submit" value="提交"/>
   	</s:form>
  </body>
</html>

WebContent\page\message.jsp

<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
<%@ taglib uri="/struts-tags" prefix="s" %>

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
  <head>
    <title>My JSP 'message.jsp' starting page</title>
    
	<meta http-equiv="pragma" content="no-cache">
	<meta http-equiv="cache-control" content="no-cache">
	<meta http-equiv="expires" content="0">    
	<meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
	<meta http-equiv="description" content="This is my page">
	<!--
	<link rel="stylesheet" type="text/css" href="styles.css">
	-->

  </head>
  
  <body>
    <s:property value="message"/> <br>
    <a href="../index.jsp">返回</a>
  </body>
</html>

WebContent\page\personlist.jsp

<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
<%@ taglib uri="/struts-tags" prefix="s" %>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
  <head>
   
    <title>人员列表</title>
    
	<meta http-equiv="pragma" content="no-cache">
	<meta http-equiv="cache-control" content="no-cache">
	<meta http-equiv="expires" content="0">    
	<meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
	<meta http-equiv="description" content="This is my page">
	<!--
	<link rel="stylesheet" type="text/css" href="styles.css">
	-->

  </head>
  
  <body>
   <s:iterator value="persons">
   	id=<s:property value="id"/>,name=<s:property value="name"/><br>
   </s:iterator>
   <a href="page/addperson.jsp">添加</a>
  </body>
</html>

WebContent\WEB-INF\web.xml

<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://java.sun.com/xml/ns/javaee" xmlns:web="http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" id="WebApp_ID" version="2.5">
  <display-name>test</display-name>
  
  <context-param>
	   <param-name>contextConfigLocation</param-name>
	   <param-value>classpath:beans.xml</param-value>
	</context-param>
	<!-- 对Spring容器进行实例化 -->
	<listener>
	      <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
	</listener>
	<filter>
		<filter-name>encoding</filter-name>
		<filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class>
		<init-param>
			<param-name>encoding</param-name>
			<param-value>UTF-8</param-value>
		</init-param>
	</filter>
	<filter-mapping>
		<filter-name>encoding</filter-name>
		<url-pattern>/*</url-pattern>
	</filter-mapping>
	<filter>
	        <filter-name>Spring OpenEntityManagerInViewFilter</filter-name>
	        <filter-class>org.springframework.orm.jpa.support.OpenEntityManagerInViewFilter</filter-class>
	 </filter>
	 <filter-mapping>
	        <filter-name>Spring OpenEntityManagerInViewFilter</filter-name>
	        <url-pattern>/*</url-pattern>
	 </filter-mapping>
	 
	 <!-- Struts2 Configuration Begin -->
	<filter>
        <filter-name>struts2</filter-name>
        <filter-class>org.apache.struts2.dispatcher.FilterDispatcher</filter-class>
    </filter>
    <filter-mapping>
        <filter-name>struts2</filter-name>
        <url-pattern>/*</url-pattern>
   </filter-mapping>
	<!-- Struts2 Configuration End -->
	
  <welcome-file-list>
    <welcome-file>index.jsp</welcome-file>
  </welcome-file-list>
</web-app>

WebContent\index.jsp

<% response.sendRedirect("action_list.do"); %>