Spring2.5.3+Hibernate3.2+Struts2.0.11整合
只有Struts2基础（初学Hibernate/Spring第三天就想着整合），有些地方不是很懂，看了网上大部分的例子、blog，百分百的MyEclipse插件，本人不太习惯使用MyEclipse，主要是Eclipse使用的时间比较长，使用MyEclipse6.0.1时（第一次用）比如你要输入.getHibernateTemplate()时，输入点时就有提示，但是当我输入点后面的字母出错时，只能返回到输入点之前才按点“.”可以提示，按ALT+/也不会出现，是不是我不知道快捷键，或是其它的方式，总之我在Eclipse中输入一半错误时按ALT+/可以又出来提示，虽然不是特依赖提示功能，但是用起来还是不爽，毕竟每天都在使用它，哪位要是知道的话烦请告诉一声bulktree@126.com。
仅仅看了两天的官方文档就写了这个整合的新闻发布系统，感觉蛮好的，是个好的开始 come on!
以下是一个新闻发布系统的登录模块：（两天看文档，一夜写成的，不是很完善，仅仅实现基本的增删查改功能，主要是整合练习）
首先配置三个框架，有人说要是使用MyEclipse自动生成会有顺序Spring->Hibernate->Struts,太依赖工具不是本人的习惯，这些是后话。
开发工具Eclipse J2EE Developer Tomcat6.0.13 Mysql 6.0
新建Dynamic Web Project
拷贝工程所需的jar包到WEB-INF/lib下
数据库创建脚本
|
DROPTABLE context;
CREATETABLE context
(
id VARCHAR(32) NOTNULLPRIMARYKEY,
title VARCHAR(100),
times DATETIME,
content VARCHAR(500),
author VARCHAR(50),
click INT,
typeVARCHAR(50)
);
DROPTABLEuser;
CREATETABLEuser
(
uid VARCHAR(50) NOTNULLPRIMARYKEY,
uname VARCHAR(50),
password VARCHAR(50) NOTNULL
);
|
在web.xml中配置Struts2和Spring
|
<filter>
<filter-name>Struts2</filter-name>
<filter-class>
org.apache.struts2.dispatcher.FilterDispatcher
</filter-class>
</filter>
<filter>
<filter-name>encodingFilter</filter-name>
<filter-class>
org.springframework.web.filter.CharacterEncodingFilter
</filter-class>
<init-param>
<param-name>encodingFilter</param-name>
<param-value>UTF-8</param-value>
</init-param>
</filter>
<filter-mapping>
<filter-name>Struts2</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
<listener>
<listener-class>
org.springframework.web.context.ContextLoaderListener
</listener-class>
</listener>
|
项目中我使用的是Tomcat数据源配置如下，如果你不使用Tomcat数据源也可以在下面的配置文件中配置：
|
<Context docBase="news-SSH2"
path="/news-SSH2" reloadable="true" source="org.eclipse.jst.jee.server:news-SSH2">
<Resource auth="Container"
driverClassName="com.mysql.jdbc.Driver" maxActive="100" maxIdle="30"
maxWait="10000" name="jdbc/news" password="1234" type="javax.sql.DataSource"
url="jdbc:mysql://localhost:3306/news?autoReconnect=true"
username="root"/>
</Context>
|
也在在配置applicationContext.xml文件中配置数据源
|
<!-- 定义数据源Bean，使用C3P0数据源实现 -->
<bean id="dataSource"
class="com.mchange.v2.c3p0.ComboPooledDataSource"
destroy-method="close">
<!-- 指定连接数据库的驱动 -->
<property name="driverClass"
value="com.mysql.jdbc.Driver"/>
<!-- 指定连接数据库的URL -->
<property name="jdbcUrl"
value="jdbc:mysql://localhost:3306/news"/>
<!-- 指定连接数据库的用户名 -->
<property name="user"
value="root"/>
<!-- 指定连接数据库的密码 -->
<property name="password"
value="1234"/>
<!-- 指定连接数据库连接池的最大连接数 -->
<property name="maxPoolSize"
value="20"/>
<!-- 指定连接数据库连接池的最小连接数 -->
<property name="minPoolSize"
value="1"/>
<!-- 指定连接数据库连接池的初始化连接数 -->
<property name="initialPoolSize"
value="1"/>
<!-- 指定连接数据库连接池的连接的最大空闲时间 -->
<property name="maxIdleTime"
value="20"/>
</bean>
|
在applicationContext.xml中配置sessionFactory
|
<bean id="dataSource"
class="org.springframework.jndi.JndiObjectFactoryBean">
<property name="jndiName"
value="java:comp/env/jdbc/news"></property>
</bean>
<!-- 管理Hibernate -->
<bean id="sessionFactory"
class="org.springframework.orm.hibernate3.LocalSessionFactoryBean">
<property name="dataSource"
ref="dataSource"></property>
<property name="mappingResources">
<list>
<value>org/bulktree/ssh2/news/vo/User.hbm.xml</value>
<value>org/bulktree/ssh2/news/vo/News.hbm.xml</value>
</list>
</property>
<property name="hibernateProperties">
<value>
hibernate.dialect=org.hibernate.dialect.MySQLDialect
</value>
</property>
</bean>
|
3. 开始编码：
我们必须明确Spring框架的体系结构，新建以下几个包
User.java
|
package org.bulktree.ssh2.news.vo;
publicclass User {
private String uid;
private String uname;
private String password;
public String getUid() {
returnuid;
}
Getter/setter’’’’’’’’’’’
publicvoid setPassword(String password)
{
this.password = password;
}
}
|
在User类同包下即org.bulktree.ssh2.news.vo新建User.hbm.xml文件
|
<?xml version="1.0"?>
<!DOCTYPE hibernate-mapping PUBLIC "-//Hibernate/Hibernate
Mapping DTD 3.0//EN"
"http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd">
<hibernate-mapping package="org.bulktree.ssh2.news.vo">
<class name="User"
table="user">
<id column="uid"
name="uid" type="string">
<generator class="assigned"/>
</id>
<property column="uname"
name="uname" type="string"/>
<property column="password"
name="password" type="string"/>
</class>
</hibernate-mapping>
|
新建UserDao.java接口
|
package
org.bulktree.ssh2.news.dao;
import
java.util.List;
import
org.bulktree.ssh2.news.vo.User;
publicinterface UserDao {
/**
*增加一个用户
*@throwsException
*/
publicvoid addUser(User
user) throws Exception;
/**
*根据uid/password查询User
*@paramuid
*@parampassword
*@return
*@throwsException
*/
public User
queryByUidAndPassword(String uid, String password) throws Exception;
/**
*删除用户
*@paramuid
*@throwsException
*/
publicvoid delete(String
uid) throws Exception;
/**
*查询全部用户
*@returnList
*@throwsException
*/
public
List<User> queryAll() throws Exception;
}
|
UserDaoImpl.java接口实现类
|
package
org.bulktree.ssh2.news.dao.impl;
import
java.util.List;
import
org.bulktree.ssh2.news.dao.UserDao;
import
org.bulktree.ssh2.news.vo.User;
import
org.springframework.orm.hibernate3.support.HibernateDaoSupport;
/**
* 继承HibernateDaoSuppor类实现getHibernateTemplate()
*
* @author bulktree
*
*/
public
class UserDaoImpl extends HibernateDaoSupport implements UserDao {
@Override
public void addUser(User user) throws
Exception {
this.getHibernateTemplate().save(user);
}
@Override
public void delete(String uid) throws
Exception {
// TODO Auto-generated method stub
}
@Override
public List<User> queryAll() throws
Exception {
// TODO Auto-generated method stub
return null;
}
@Override
public User queryByUidAndPassword(String
uid, String password)
throws Exception {
String hql = "FROM User as u WHERE
u.uid=? and u.password=?";
String[] str = new String[] { uid,
password };
List<User> users =
this.getHibernateTemplate().find(hql, str);
if (users != null &&
users.size() >= 1) {
return users.get(0);
} else {
return null;
}
}
}
|
Service层，新建一UserService.java接口
|
package org.bulktree.ssh2.news.service;
publicinterface UserService {
/**
*添加一个用户
*@paramuid
*@paramuname
*@parampassword
*@return新增用户的uid
*@throwsException
*/
public String addUser(String uid,
String uname, String password) throws Exception;
/**
*验证登录
*@paramuid
*@parampassword
*@returnuid
*@throwsException
*/
public String isLogin(String uid,
String password) throws
Exception;
}
|
接口实现类
|
package
org.bulktree.ssh2.news.service.impl;
import
org.bulktree.ssh2.news.dao.UserDao;
import
org.bulktree.ssh2.news.service.UserService;
import
org.bulktree.ssh2.news.vo.User;
/**
* UserService实现类
*
* @author bulktree
*
*/
public
class UserServiceImpl implements UserService {
private UserDao userDao;
public void setUserDao(UserDao userDao) {
this.userDao = userDao;
}
@Override
public String addUser(String uid, String
uname, String password)
throws Exception {
User user = new User();
user.setUid(uid);
user.setUname(uname);
user.setPassword(password);
userDao.addUser(user);
return user.getUid();
}
@Override
public String isLogin(String uid, String
password) throws Exception {
User user =
userDao.queryByUidAndPassword(uid, password);
if(user != null) {
return user.getUname();
} else {
return null;
}
}
}
|
最后我们新建一Action，LoginAction.java
|
package
org.bulktree.ssh2.news.action;
import
java.util.Map;
import
org.bulktree.ssh2.news.service.UserService;
import
org.bulktree.ssh2.news.vo.User;
import
com.opensymphony.xwork2.ActionContext;
import
com.opensymphony.xwork2.ActionSupport;
/**
* 登录Action
* @author bulktree
*
*/
public
class LoginAction extends ActionSupport {
private User user;
private UserService userService;
public User getUser() {
return user;
}
public void setUser(User user) {
this.user = user;
}
public UserService getUserService() {
return userService;
}
public void setUserService(UserService
userService) {
this.userService = userService;
}
@Override
public String execute() throws Exception {
if (isInvalid(user.getUid())) {
this.addFieldError("uid",
"登录ID不能为空");
return INPUT;
}
if (isInvalid(user.getPassword())) {
this.addFieldError("password",
"密码项不能为空");
return INPUT;
}
String uname =
userService.isLogin(user.getUid(), user.getPassword());
if (uname != null) {
Map session =
ActionContext.getContext().getSession();
session.put("uname",
uname);
session.put("uid",
user.getUid());
return SUCCESS;
} else {
this.addFieldError("idorpassword",
"登录ID或密码错误");
return INPUT;
}
}
private boolean isInvalid(String value) {
return (value == null || value.length()
== 0);
}
}
|
下来就是login.jsp页面文件了
|
<center>
<div style="color:
red"><s:fielderror /><s:actionmessage /></div>
<s:form action="login"
method="post">
<s:textfield name="user.uid"
label="UID" tooltip="ENTER
YOUR UID" />
<s:password name="user.password"
label="PASSWORD"
tooltip="ENTER
YOUR PASSWORD" />
<s:submit></s:submit>
</s:form>
<s:a href |