Struts2+Spring2.5+Hibernate3.3整合开发

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整合

下面给出整合开发时Struts 2、Hibernate、Spring需要的JAR。

struts2-core-2.x.x.jar :Struts 2框架的核心类库
Xwork-core-2.x.x.jar :XWork类库，Struts 2在其上构建
ognl-2.6.x.jar :对象图导航语言（Object Graph Navigation Language），struts2框架通过其读写对象的属性
freemarker-2.3.x.jar :Struts 2的UI标签的模板使用FreeMarker编写
commons-fileupload-1.2.x.jar 文件上传组件，2.1.6版本后需要加入此文件
struts2-spring-plugin-2.x.x.jar ：用于struts2集成Spring的插件

hibernate核心安装包下的(下载路径：http://sourceforge.net/projects/hibernate/files/hibernate3/3.3.1.GA/hibernate-distribution-3.3.1.GA-dist.zip/download)
hibernate3.jar
lib\bytecode\cglib\hibernate-cglib-repack-2.1_3.jar
lib\required\*.jar

hibernate 注解安装包下的(下载路径：http://sourceforge.net/projects/hibernate/files/hibernate-annotations/3.3.1.GA/hibernate-annotations-3.3.1.GA.zip/download)
hibernate-annotations.jar
lib\ejb3-persistence.jar、hibernate-commons-annotations.jar

Hibernate针对JPA的实现包(下载路径：http://sourceforge.net/projects/hibernate/files/hibernate-entitymanager/3.3.1.GA/hibernate-entitymanager-3.3.1.GA.zip/download)
hibernate-entitymanager.jar

Spring安装包下的
dist\spring.jar
lib\c3p0\c3p0-0.9.1.2.jar
lib\aspectj\aspectjweaver.jar、aspectjrt.jar
lib\cglib\cglib-nodep-2.1_3.jar
lib\j2ee\common-annotations.jar
lib\log4j\log4j-1.2.15.jar
lib\jakarta-commons\commons-logging.jar
lib\slf4j\slf4j-log4j12-1.5.0.jar

MYSQL数据库驱动jar

Spring的配置模版：

<?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-2.5.xsd
           http://www.springframework.org/schema/context
           http://www.springframework.org/schema/context/spring-context-2.5.xsd
           http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-2.5.xsd
           http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-2.5.xsd">

</beans>

第一步在Spring中配置数据源：

<bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource"
	destroy-method="close">
	<property name="driverClass" value="org.gjt.mm.mysql.Driver" />
	<property name="jdbcUrl"
		value="jdbc:mysql://localhost:3306/SSH2?useUnicode=true&amp;characterEncoding=UTF-8" />
	<property name="user" value="root" />
	<property name="password" value="mysql" />
	<!--初始化时获取的连接数，取值应在minPoolSize与maxPoolSize之间。Default: 3 -->
	<property name="initialPoolSize" value="1" />
	<!--连接池中保留的最小连接数。 -->
	<property name="minPoolSize" value="1" />
	<!--连接池中保留的最大连接数。Default: 15 -->
	<property name="maxPoolSize" value="300" />
	<!--最大空闲时间,60秒内未使用则连接被丢弃。若为0则永不丢弃。Default: 0 -->
	<property name="maxIdleTime" value="60" />
	<!--当连接池中的连接耗尽的时候c3p0一次同时获取的连接数。Default: 3 -->
	<property name="acquireIncrement" value="5" />
	<!--每60秒检查所有连接池中的空闲连接。Default: 0 -->
	<property name="idleConnectionTestPeriod" value="60" />
</bean>

第二步集成进hibernate ：

<bean id="sessionFactory"
	class="org.springframework.orm.hibernate3.LocalSessionFactoryBean">
	<property name="dataSource" ref="dataSource" />
	<property name="mappingResources">
		<list>
			<value>org/spring/bean/Employee.hbm.xml</value>
		</list>
	</property>
	<property name="hibernateProperties">
		<value>
			hibernate.dialect=org.hibernate.dialect.MySQL5Dialect
			hibernate.hbm2ddl.auto=update
			hibernate.show_sql=false
			hibernate.format_sql=false
		</value>
	</property>
</bean>

第三步使用Spring容器管理事务服务：

<bean id="txManager"
	class="org.springframework.orm.hibernate3.HibernateTransactionManager">
	<property name="sessionFactory" ref="sessionFactory" />
</bean>

<!--使用基于注解方式配置事务 -->
<tx:annotation-driven transaction-manager="txManager" />

整合后的beans.xml配置文件：

<?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-2.5.xsd
           http://www.springframework.org/schema/context
           http://www.springframework.org/schema/context/spring-context-2.5.xsd
           http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-2.5.xsd
           http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-2.5.xsd">

	<!-- 采用自动扫描bean的方式让spring容器管理 -->
	<context:component-scan base-package="org.spring" />

	<bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource"
		destroy-method="close">
		<property name="driverClass" value="org.gjt.mm.mysql.Driver" />
		<property name="jdbcUrl"
			value="jdbc:mysql://localhost:3306/SSH2?useUnicode=true&amp;characterEncoding=UTF-8" />
		<property name="user" value="root" />
		<property name="password" value="mysql" />
		<!--初始化时获取的连接数，取值应在minPoolSize与maxPoolSize之间。Default: 3 -->
		<property name="initialPoolSize" value="1" />
		<!--连接池中保留的最小连接数。 -->
		<property name="minPoolSize" value="1" />
		<!--连接池中保留的最大连接数。Default: 15 -->
		<property name="maxPoolSize" value="300" />
		<!--最大空闲时间,60秒内未使用则连接被丢弃。若为0则永不丢弃。Default: 0 -->
		<property name="maxIdleTime" value="60" />
		<!--当连接池中的连接耗尽的时候c3p0一次同时获取的连接数。Default: 3 -->
		<property name="acquireIncrement" value="5" />
		<!--每60秒检查所有连接池中的空闲连接。Default: 0 -->
		<property name="idleConnectionTestPeriod" value="60" />
	</bean>

	<bean id="sessionFactory"
		class="org.springframework.orm.hibernate3.LocalSessionFactoryBean">
		<property name="dataSource" ref="dataSource" />
		<property name="mappingResources">
			<list>
				<value>org/spring/bean/Employee.hbm.xml</value>
			</list>
		</property>
		<property name="hibernateProperties">
			<value>
				hibernate.dialect=org.hibernate.dialect.MySQL5Dialect
				hibernate.hbm2ddl.auto=update
				hibernate.show_sql=false
				hibernate.format_sql=false
			</value>
		</property>
	</bean>

	<bean id="txManager"
		class="org.springframework.orm.hibernate3.HibernateTransactionManager">
		<property name="sessionFactory" ref="sessionFactory" />
	</bean>

	<!--使用基于注解方式配置事务 -->
	<tx:annotation-driven transaction-manager="txManager" />
</beans>

配置hibernate实体映射文件Employee.hbm.xml：

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE hibernate-mapping PUBLIC
        "-//Hibernate/Hibernate Mapping DTD 3.0//EN"
        "http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd">

<hibernate-mapping package="org.spring.bean">
	<class name="Employee">
		<id name="username" length="20" />
		<property name="password" length="20" not-null="true" />
		<property name="gender" not-null="true" length="5">
			<type name="org.hibernate.type.EnumType">
				<param name="enumClass">org.spring.bean.Gender</param>
				<!-- 12为java.sql.Types.VARCHAR常量值，即保存枚举的字面值到数据库。如果不指定type参数，保存枚举的索引值(从0开始)到数据库 -->
				<param name="type">12</param>
			</type>
		</property>
	</class>
</hibernate-mapping>

实体映射文件Employee.hbm.xml所对应的类

package org.spring.bean;

/**
 * 实体类
 */
public class Employee {
	private String username;
	private String password;
	private Gender gender = Gender.MAN;

	public Employee() {
	}

	public Employee(String username, String password) {
		this.username = username;
		this.password = password;
	}

	public String getUsername() {
		return username;
	}

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

	public String getPassword() {
		return password;
	}

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

	public Gender getGender() {
		return gender;
	}

	public void setGender(Gender gender) {
		this.gender = gender;
	}
}

其中枚举类型Gender类

package org.spring.bean;

/**
 * 性别
 */
public enum Gender {
	MAN, WOMEN;
}

在web容器中使用Listener实例化spring容器和配置struts2

<?xml version="1.0" encoding="UTF-8"?>
<web-app version="2.4" xmlns="http://java.sun.com/xml/ns/j2ee"
	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
	xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee 
	http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd">

	<!-- 指定spring的配置文件，默认从web根目录寻找配置文件，我们可以通过spring提供的classpath:前缀指定从类路径下寻找 -->
	<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>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>

	<welcome-file-list>
		<welcome-file>index.jsp</welcome-file>
	</welcome-file-list>
</web-app>

struts2的配置文件模版struts.xml如下。常量struts.objectFactory=spring明确指出将由Spring负责创建Action实例。

<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE struts PUBLIC
    "-//Apache Software Foundation//DTD Struts Configuration 2.0//EN"
    "http://struts.apache.org/dtds/struts-2.0.dtd">

<struts>
	<!-- 默认的视图主题 -->
	<constant name="struts.ui.theme" value="simple" />

	<constant name="struts.objectFactory" value="spring" />

	<package name="employee" namespace="/employee" extends="struts-default">
		<action name="list" class="employeeAction">
			<result name="list">/WEB-INF/page/employee.jsp</result>
		</action>

		<action name="manage_*" class="employeeManageAction" method="{1}">
			<result name="add">/WEB-INF/page/employeeAdd.jsp</result>
			<result name="message">/WEB-INF/page/message.jsp</result>
		</action>
	</package>
</struts>

为了能从spring容器中寻找到Action bean，要求action配置的class属性值和spring中bean的名称相同。

EmployeeAction：

package org.spring.action;

import javax.annotation.Resource;

import org.spring.service.EmployeeService;
import org.springframework.stereotype.Controller;

import com.opensymphony.xwork2.ActionContext;

@Controller
public class EmployeeAction {
	@Resource
	EmployeeService employeeService;

	public String execute() {
		ActionContext.getContext().put("employees", employeeService.list());
		return "list";
	}
}

EmployeeManageAction

package org.spring.action;

import javax.annotation.Resource;

import org.spring.bean.Employee;
import org.spring.service.EmployeeService;
import org.springframework.context.annotation.Scope;
import org.springframework.stereotype.Controller;

import com.opensymphony.xwork2.ActionContext;

@Controller
@Scope("prototype")
public class EmployeeManageAction {
	@Resource
	EmployeeService employeeService;
	private Employee employee;

	public Employee getEmployee() {
		return employee;
	}

	public void setEmployee(Employee employee) {
		this.employee = employee;
	}

	public String addUI() {
		return "add";
	}

	public String add() {
		employeeService.save(employee);
		ActionContext.getContext().put("message", "保存成功");
		return "message";
	}
}

employee.jsp：

<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
<%@ taglib uri="/struts-tags" prefix="s"%>
<%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c"%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<title>员工列表</title>

<meta http-equiv="pragma" content="no-cache">
<meta http-equiv="cache-control" content="no-cache">
<meta http-equiv="expires" content="0">
</head>

<body>
	ONGL:
	<br />
	<s:iterator value="#request.employees">
		<s:property value="username" /> ,<s:property value="password" />, <s:property
			value="gender" />
		<br />
	</s:iterator>

	<br />

	<a href="<s:url action="manage_addUI" namespace="/employee"/>">员工添加</a>
	<br /> JSTL/EL:
	<br />
	<c:forEach items="${employees}" var="employee">
   	${employee.username}, ${employee.password}, ${employee.gender}<br />
	</c:forEach>
</body>
</html>

employeeAdd.jsp：

<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
<%@ taglib uri="/struts-tags" prefix="s"%>
<%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c"%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
  <head>
    <title>员工添加</title>
    
	<meta http-equiv="pragma" content="no-cache">
	<meta http-equiv="cache-control" content="no-cache">
	<meta http-equiv="expires" content="0"> 
  </head>
  
  <body>
  	<s:form action="manage_add" namespace="/employee" method="post">
  		用户名:<s:textfield name="employee.username"/><br/>
  		密码:<s:textfield name="employee.password"/><br/>
  		性别:<s:radio list="#{'MAN':'男','WOMEN':'女'}" listKey="key" listValue="value" name="employee.gender"/>
  		<input type="submit" value="保存"/>
  	</s:form>
  </body>
</html>

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>结果信息</title>
	<meta http-equiv="pragma" content="no-cache">
	<meta http-equiv="cache-control" content="no-cache">
	<meta http-equiv="expires" content="0">  
  </head>
  
  <body>
   <h1><font color="red"> <s:property value="#request.message"/> </font></h1>
  </body>
</html>

使用spring解决struts2乱码问题。

<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>

使用spring解决hibernate因session关闭导致的延迟加载例外问题。

<filter>
	<filter-name>OpenSessionInViewFilter</filter-name>
	<filter-class>org.springframework.orm.hibernate3.support.OpenSessionInViewFilter</filter-class>
	<init-param>
		<!-- 指定org.springframework.orm.hibernate3.LocalSessionFactoryBean在spring配置文件中的名称,默认值为sessionFactory.如果LocalSessionFactoryBean在spring中的名称不是sessionFactory,该参数一定要指定,否则会出现找不到sessionFactory的例外 -->
		<param-name>sessionFactoryBeanName</param-name>
		<param-value>sessionFactory</param-value>
	</init-param>
</filter>
<filter-mapping>
	<filter-name>OpenSessionInViewFilter</filter-name>
	<url-pattern>/*</url-pattern>
</filter-mapping>

整合后的web.xml配置文件为

<?xml version="1.0" encoding="UTF-8"?>
<web-app version="2.4" xmlns="http://java.sun.com/xml/ns/j2ee"
	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
	xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee 
	http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd">

	<!-- 指定spring的配置文件，默认从web根目录寻找配置文件，我们可以通过spring提供的classpath:前缀指定从类路径下寻找 -->
	<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>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>

	<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>OpenSessionInViewFilter</filter-name>
		<filter-class>org.springframework.orm.hibernate3.support.OpenSessionInViewFilter</filter-class>
		<init-param>
			<!-- 指定org.springframework.orm.hibernate3.LocalSessionFactoryBean在spring配置文件中的名称,默认值为sessionFactory.如果LocalSessionFactoryBean在spring中的名称不是sessionFactory,该参数一定要指定,否则会出现找不到sessionFactory的例外 -->
			<param-name>sessionFactoryBeanName</param-name>
			<param-value>sessionFactory</param-value>
		</init-param>
	</filter>
	<filter-mapping>
		<filter-name>OpenSessionInViewFilter</filter-name>
		<url-pattern>/*</url-pattern>
	</filter-mapping>

	<welcome-file-list>
		<welcome-file>index.jsp</welcome-file>
	</welcome-file-list>
</web-app>

EmployeeService

package org.spring.service;

import java.util.List;

import org.spring.bean.Employee;

public interface EmployeeService {
	public void save(Employee employee);

	public void update(Employee employee);

	public Employee find(String username);

	public void delete(String... usernames);

	public List<Employee> list();
}

EmployeeServiceBean

package org.spring.service.impl;

import java.util.List;

import javax.annotation.Resource;

import org.hibernate.SessionFactory;
import org.spring.bean.Employee;
import org.spring.service.EmployeeService;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Propagation;
import org.springframework.transaction.annotation.Transactional;

@Service
@Transactional
public class EmployeeServiceBean implements EmployeeService {
	@Resource
	SessionFactory factory;

	public void delete(String... usernames) {
		for (String username : usernames) {
			factory.getCurrentSession().delete(
					factory.getCurrentSession().load(Employee.class, username));
		}
	}

	@Transactional(propagation = Propagation.NOT_SUPPORTED)
	public Employee find(String username) {
		return (Employee) factory.getCurrentSession().get(Employee.class,
				username);
	}

	@SuppressWarnings("unchecked")
	@Transactional(propagation = Propagation.NOT_SUPPORTED)
	public List<Employee> list() {
		return factory.getCurrentSession().createQuery("from Employee").list();
	}

	public void save(Employee employee) {
		factory.getCurrentSession().persist(employee);
	}

	public void update(Employee employee) {
		factory.getCurrentSession().merge(employee);
	}

}

业务bean的测试类

package org.spring.junit;

import java.util.List;

import org.junit.BeforeClass;
import org.junit.Test;
import org.spring.bean.Employee;
import org.spring.bean.Gender;
import org.spring.service.EmployeeService;
import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;

public class EmployeeTest {
	private static EmployeeService employeeService;

	@BeforeClass
	public static void setUpBeforeClass() throws Exception {
		try {
			ApplicationContext act = new ClassPathXmlApplicationContext(
					"beans.xml");
			employeeService = (EmployeeService) act
					.getBean("employeeServiceBean");
		} catch (RuntimeException e) {
			e.printStackTrace();
		}
	}

	@Test
	public void save() {
		employeeService.save(new Employee("xxx", "123456"));
	}

	@Test
	public void update() {
		Employee employee = employeeService.find("xxx");
		employee.setGender(Gender.WOMEN);
		employeeService.update(employee);
	}

	@Test
	public void delete() {
		employeeService.delete("xxx");
	}

	@Test
	public void list() {
		List<Employee> ems = employeeService.list();
		for (Employee em : ems)
			System.out.println(em.getUsername());
	}

	@Test
	public void find() {
		Employee em = employeeService.find("xxx");
		System.out.println(em.getPassword());
	}
}

SSH2.rar (21 KB)
下载次数: 5

strutslib.rar (3 MB)
下载次数: 0

springlib.rar (5.1 MB)
下载次数: 0

hibernatelib.rar (5.7 MB)
下载次数: 1

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