Struts2+spring2+hibernate3整合方案
最近闲来无事可做，于是开始学习struts2。Struts2和struts1、webwork2有什么区别我也不说了，网上有很多这方面的资料。以前在项目中从未使用过struts，一直使用spring+hibernate，现在既然学习了Struts，也不能浪费，于是乎开始琢磨着怎么整合这3个框架。整合原理以spring为容器，管理hibernate的DAO和Struts2的Action。
一、准备工作
Struts2.06+spring2.5+hibernate3.2+jdk6.0+myeclipse6.0+tomcat5.5+mysql5.0 以上是整合的原料。下面以一个注册登陆的例子来开始我们的整合过程。
这个例子很简单，下面是它的sql脚本内容:
Create TABLE `user` (
`userid` int(11) NOT NULL AUTO_INCREMENT,
`username` varchar(20) NOT NULL,
`password` varchar(16) NOT NULL,
`email` varchar(30) NOT NULL,
PRIMARY KEY (`userid`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8;
二、开始行动
包结构可以参考下图
图一
图二
图三
1) Struts部分:建立struts.xml和struts.properties
Struts.xml内容如下：
Struts.properties内容如下:
struts.devMode=false
struts.enable.DynamicMethodInvocation=true
struts.i18n.reload=true
struts.ui.theme=simple
struts.locale=zh_CN
struts.i18n.encoding=UTF-8
struts.objectFactory=spring
struts.objectFactory.spring.autoWire=name
struts.serve.static.browserCache=false
struts.url.includeParams=none
2) 建立User.java和User.hbm.xml、jdbc.properties：
User.java内容如下:
/** *//**
*
* @author flustar * @version 1.0
* Creation date: Dec 23, 2007 1:55:28 PM
*/
package com.firstssh.model;
import java.io.Serializable;
public class User implements Serializable {
private int id;
private String username;
private String password;
private String email;
public int getId() {
return id;
}
public void setId(int id) {
this.id = id;
}
public String getUsername() {
return username;
}
public void setUsername(String username) {
https://www.doczj.com/doc/2313915255.html,ername = username;
}
public String getPassword() {
return password;
}
public void setPassword(String password) {
this.password = password;
}
public String getEmail() {
return email;
}
public void setEmail(String email) {
this.email = email;
}
}
User.hbm.xml内容:
"-//Hibernate/Hibernate Mapping DTD 3.0//EN"
"https://www.doczj.com/doc/2313915255.html,/hibernate-mapping-3.0.dtd"> package="com.firstssh.model"> column="username" not-null="true" length="20" /> column="password" not-null="true" length="16" /> column="email" not-null="true" length="30"/> jdbc.properties内容如下: datasource.type=mysql datasource.driverClassName=com.mysql.jdbc.Driver datasource.url=jdbc:mysql://localhost:3306/test?useUnicode=true&characterEnc oding=UTF-8 https://www.doczj.com/doc/2313915255.html,ername=root datasource.password=123456 datasource.maxActive=10 datasource.maxIdle=2 datasource.maxWait=120000 datasource.whenExhaustedAction=1 datasource.validationQuery=select 1 from dual datasource.testOnBorrow=true datasource.testOnReturn=false c3p0.acquireIncrement=3 c3p0.initialPoolSize=3 c3p0.idleConnectionTestPeriod=900 c3p0.minPoolSize=2 c3p0.maxPoolSize=50 c3p0.maxStatements=100 c3p0.numHelperThreads=10 c3p0.maxIdleTime=600 hibernate.dialect=org.hibernate.dialect.MySQLInnoDBDialect #hibernate.dialect=org.hibernate.dialect.MySQLMyISAMDialect hibernate.jdbc.batch_size=25 hibernate.jdbc.fetch_size=50 hibernate.show_sql=true hibernate.connection.release_mode=after_transaction 3) Spirng部分:为了清晰把Spring的配置文件拆分成以下几部分applicationContext-dao.xml、appliationContext-service.xml、 applicationContext-hibernate.xml、action- servlet.xml。 applicationContext-hibernate.xml内容： class="org.springframework.beans.factory.config.PropertyPlaceholderConfigure r"> class="org.springframework.orm.hibernate3.LocalSessionFactoryBean"> ${hibernate.jdbc.fetch_size} ${hibernate.jdbc.batch_size} class="org.springframework.orm.hibernate3.HibernateTransactionManager"> class="org.springframework.transaction.interceptor.TransactionInterceptor"> class="org.springframework.aop.framework.autoproxy.BeanNameAutoProxyCreat or"> applicationContext-dao.xml内容: applicationContext-service.xml内容: action-servlet.xml内容: scope="prototype"> scope="prototype"> 以上几个xml文件的内容暂且不要理会，继续往下看，你就自动明白的，不用我解释。 4）日志部分:log4j.properties 、commons-logging.properties log4j.properties内容: # For JBoss: Avoid to setup Log4J outside $JBOSS_HOME/server/default/deploy/log4j.xml! # For all other servers: Comment out the Log4J listener in web.xml to activate Log4J. log4j.rootLogger=INFO, stdout, logfile log4j.appender.stdout=org.apache.log4j.ConsoleAppender https://www.doczj.com/doc/2313915255.html,yout=org.apache.log4j.PatternLayout https://www.doczj.com/doc/2313915255.html,yout.ConversionPattern=%d %p [%c] - %m%n log4j.appender.logfile=org.apache.log4j.RollingFileAppender log4j.appender.logfile.File=${firstssh.root}/WEB-INF/logs/firstssh.log log4j.appender.logfile.MaxFileSize=512KB # Keep three backup files. log4j.appender.logfile.MaxBackupIndex=3 # Pattern to output: date priority [category] - message https://www.doczj.com/doc/2313915255.html,yout=org.apache.log4j.PatternLayout https://www.doczj.com/doc/2313915255.html,yout.ConversionPattern=%d %p [%c] - %m%n # OpenSymphony Stuff https://www.doczj.com/doc/2313915255.html,.opensymphony=INFO https://www.doczj.com/doc/2313915255.html,.apache.struts2=INFO # Spring Stuff https://www.doczj.com/doc/2313915255.html,.springframework=INFO # Hibernate Stuff https://www.doczj.com/doc/2313915255.html,.hiberante=INFO commons-logging.properties 内容: https://www.doczj.com/doc/2313915255.html,mons.logging.Log=https://www.doczj.com/doc/2313915255.html,mons.logging.impl.Log4JLogge r 5)web.xml xmlns:xsi="https://www.doczj.com/doc/2313915255.html,/2001/XMLSchema-instance" xsi:schemaLocation="https://www.doczj.com/doc/2313915255.html,/xml/ns/j2ee https://www.doczj.com/doc/2313915255.html,/xml/ns/j2ee/web-app_2_4.xsd" version="2.4"> 6)dwr.xml 三、开始编码: 以下是DAO部分的核心代码: IGenericDao.java内容如下: /** *//** * * @author flustar * @version 1.0 * Creation date: Dec 23, 2007 6:19:21 PM */ package https://www.doczj.com/doc/2313915255.html,mon.dao; import java.io.Serializable; import java.util.Collection; import java.util.List; import org.hibernate.LockMode; import org.hibernate.criterion.DetachedCriteria; import org.springframework.dao.DataAccessException; import https://www.doczj.com/doc/2313915255.html,mon.util.PaginationSupport; public interface IGenericDao public void saveOrUpdate(T t); public T load(Serializable ID); public T get(Serializable ID) ; public boolean contains(T t) throws DataAccessException ; public void delete(T t, LockMode lockMode) throws DataAccessException; public void delete(T t) throws DataAccessException; public void deleteAll(Collection public List throws DataAccessException; public List throws DataAccessException; public List public List int maxResults) throws DataAccessException; public List public List Object value) throws DataAccessException ; public List Object[] values) throws DataAccessException; public Object load(Class TClass, Serializable ID, LockMode lockMode) throws DataAccessException; public void load(T t, Serializable ID) throws DataAccessException; public Object load(String TName, Serializable ID, LockMode lockMode) throws DataAccessException; public Object load(String TName, Serializable ID) throws DataAccessException; public void refresh(T t, LockMode lockMode) throws DataAccessException; public void refresh(T t) throws DataAccessException; public Serializable save(T t) throws DataAccessException; public void saveOrUpdate(String TName, T t) throws DataAccessException; public void saveOrUpdateAll(Collection throws DataAccessException; public void update(T t, LockMode lockMode) throws DataAccessException; public void update(T t) throws DataAccessException; public void update(String TName, T t, LockMode lockMode) throws DataAccessException; public void update(String TName, T t) throws DataAccessException; public List public List public PaginationSupport findPageByCriteria( final DetachedCriteria detachedCriteria, final int pageSize, final int startIndex); public PaginationSupport findPageByQuery( final String hsql, final int pageSize,final int startIndex); } GenericDao.java内容如下: /** *//** * * @author flustar * @version 1.0 * Creation date: Dec 23, 2007 11:23:56 PM */ package https://www.doczj.com/doc/2313915255.html,mon.dao; import java.io.Serializable; import https://www.doczj.com/doc/2313915255.html,ng.reflect.ParameterizedType; import java.sql.SQLException; import java.util.Collection; import java.util.List; import https://www.doczj.com/doc/2313915255.html,mons.logging.Log; import https://www.doczj.com/doc/2313915255.html,mons.logging.LogFactory; import org.hibernate.Criteria; import org.hibernate.HibernateException; import org.hibernate.LockMode; import org.hibernate.Query; import org.hibernate.Session; import org.hibernate.criterion.DetachedCriteria; import org.hibernate.criterion.Projections; import org.springframework.dao.DataAccessException; import org.springframework.orm.hibernate3.HibernateCallback; import org.springframework.orm.hibernate3.support.HibernateDaoSupport; import https://www.doczj.com/doc/2313915255.html,mon.util.PaginationSupport; @SuppressWarnings("unchecked") public class GenericDao protected Log logger = LogFactory.getLog(getClass()); protected Class public GenericDao() { } protected Class getEntityClass() { if (entityClass == null) { entityClass = (Class .getGenericSuperclass()).getActualTypeArguments()[0]; logger.debug("T class = " + entityClass.getName()); } return entityClass; } public void saveOrUpdate(T t) { this.getHibernateTemplate().saveOrUpdate(t); } public T load(Serializable ID) { T load = (T) getHibernateTemplate().load(getEntityClass(), ID); return load; } public T get(Serializable ID) { T load = (T) getHibernateTemplate().get(getEntityClass(), ID); return load; } public boolean contains(T t) throws DataAccessException { return getHibernateTemplate().contains(t); } public void delete(T t, LockMode lockMode) throws DataAccessException { getHibernateTemplate().delete(t, lockMode); } public void delete(T t) throws DataAccessException { getHibernateTemplate().delete(t); } public void deleteAll(Collection } public List throws DataAccessException { List value); return find; } public List throws DataAccessException { List values); return find; } public List return (List } public List int maxResults) throws DataAccessException { return getHibernateTemplate().findByExample(exampleEntity, firstResult, maxResults); } public List return getHibernateTemplate().findByExample(exampleEntity); } public List Object value) throws DataAccessException { return getHibernateTemplate().findByNamedParam(queryString, paramName, value); } public List return getHibernateTemplate().findByNamedParam(queryString, paramNames, values); } public Object load(Class TClass, Serializable ID, LockMode lockMode) throws DataAccessException { return getHibernateTemplate().load(TClass, ID, lockMode); } public void load(T t, Serializable ID) throws DataAccessException { getHibernateTemplate().load(t, ID);
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