SSH案例--入门级，ssh案例--
1.项目功能展示
（1）注册
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（2）修改地址与级别信息，点击修改
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（3）再添加一位成员，进行删除
点击第二行的删除
（4）登录模块测试
输入数据库中没有的信息：
输入数据库中存在的信息：
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2. Web.xml
Spring提供了ContextLoaderListener，该监听器实现了ServletContextListener接口，他在Web应用程序启动时被触发。当他创建时会自动查找WEB-INF/下的applicationContext.xml，所以当只有一个配置文件且文件名为applicationContext.xml时，则只需要在web.xml文件中配置ContextLoaderListener监听器即可.当有多个配置文件需要载入，则应该使用<context-param>元素指定配置文件的文件名，ContextLoaderListener加载时，会查找名为contextConfigLocation的初始化参数。当Web应用程序启动时先读取web.xml文件，然后创建spring容器，之后根据配置文件内容，装配Bean实例。
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<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://xmlns.jcp.org/xml/ns/javaee" xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd" id="WebApp_ID" version="3.1">
<display-name>ssh
</display-name>
<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>
<listener>
<listener-class>org.springframework.web.context.ContextLoaderListener
</listener-class>
</listener>
<context-param>
<param-name>contextConfigLocation
</param-name>
<param-value>/WEB-INF/applicationContext.xml
</param-value>
</context-param>
<welcome-file-list>
<welcome-file>index.html
</welcome-file>
<welcome-file>index.htm
</welcome-file>
<welcome-file>index.jsp
</welcome-file>
<welcome-file>default.html
</welcome-file>
<welcome-file>default.htm
</welcome-file>
<welcome-file>default.jsp
</welcome-file>
</welcome-file-list>
</web-app>
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3. 实体类与其映射文件
（1）Member.java
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package com.entity;
public class Member {
private long id;
private String name;
private String password;
private String address;
private String email;
private int level;
public Member(){}
public Member(String name,String password,String address,String email,
int level){
this.name =
name;
this.password =
password;
this.address =
address;
this.email =
email;
this.level =
level;
}
public long getId() {
return id;
}
public void setId(
long id) {
this.id =
id;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name =
name;
}
public String getPassword() {
return password;
}
public void setPassword(String password) {
this.password =
password;
}
public String getAddress() {
return address;
}
public void setAddress(String address) {
this.address =
address;
}
public String getEmail() {
return email;
}
public void setEmail(String email) {
this.email =
email;
}
public int getLevel() {
return level;
}
public void setLevel(
int level) {
this.level =
level;
}
}
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（2）Member.hbm.xml
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<?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>
<class name="com.entity.Member" table="MEMBER">
<id name="id" type="long">
<column name="ID" />
<generator class="identity" />
</id>
<property name="name" type="java.lang.String">
<column name="NAME" />
</property>
<property name="password" type="java.lang.String">
<column name="PASSWORD" />
</property>
<property name="address" type="java.lang.String">
<column name="ADDRESS" />
</property>
<property name="email" type="java.lang.String">
<column name="EMAIL" />
</property>
<property name="level" type="int">
<column name="LEVEL" />
</property>
</class>
</hibernate-mapping>
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4.DAO层
（1）接口MemberDAO.java
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package com.dao;
import java.util.List;
import com.entity.Member;
public interface MemberDAO {
public void add(Member member);
public void update(Member member);
public void delete(
long id);
public Member findByName(String name,String password);
public Member findById(
long id);
public List<Member>
findAll();
}
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（2）实现类MemberDAOImpl.java(sessionFactory通过构造方法注入，使其可以操作数据库)
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package com.dao;
import java.util.List;
import com.entity.Member;
import org.hibernate.*
;
import org.springframework.beans.factory.annotation.Autowired;
public class MemberDAOImpl
implements MemberDAO {
private SessionFactory sessionFactory;
//构造方法注入SessionFactory对象
public MemberDAOImpl(SessionFactory sessionFactory) {
this.sessionFactory=
sessionFactory;
}
//使用SessionFactory对象返回Session对象
public Session currentSession(){
return sessionFactory.openSession();
}
@Override
public void add(Member member) {
Session session=
null;
try {
session=
currentSession();
Transaction tx =
session.beginTransaction();
session.save(member);
tx.commit();
} catch (HibernateException e) {
e.printStackTrace();
}finally{
session.close();
}
}
@Override
public void update(Member member) {
Session session=
null;
try {
session=
currentSession();
Transaction tx =
session.beginTransaction();
session.update(member);
tx.commit();
} catch (HibernateException e) {
e.printStackTrace();
}finally{
session.close();
}
}
@Override
public void delete(
long id) {
Session session=
null;
try {
session=
currentSession();
Transaction tx =
session.beginTransaction();
Member mb = (Member)session.get(Member.
class, id);
session.delete(mb);
tx.commit();
} catch (HibernateException e) {
e.printStackTrace();
}finally{
session.close();
}
}
@Override
public Member findByName(String name, String password) {
Session session=
null;
Member result =
null;
try {
session=
currentSession();
Transaction tx =
session.beginTransaction();
String hsql = " from Member m where m.name = :mname and m.password = :mpassword"
;
Query query =
session.createQuery(hsql);
query.setParameter("mname"
, name);
query.setParameter("mpassword"
, password);
result =
(Member)query.uniqueResult();
tx.commit();
} catch (HibernateException e) {
e.printStackTrace();
}finally{
session.close();
}
return result;
}
@Override
public Member findById(
long id) {
Session session=
null;
Member result =
null;
try {
session=
currentSession();
Transaction tx =
session.beginTransaction();
String hsql = " from Member m where m.id = :id"
;
Query query =
session.createQuery(hsql);
query.setParameter("id"
,id);
result =
(Member)query.uniqueResult();
tx.commit();
} catch (HibernateException e) {
e.printStackTrace();
}finally{
session.close();
}
return result;
}
@Override
public List<Member>
findAll() {
Session session=
null;
List<Member> list =
null;
try {
session=
currentSession();
Transaction tx =
session.beginTransaction();
String hsql = " from Member"
;
Query query =
session.createQuery(hsql);
list =
query.list();
tx.commit();
} catch (HibernateException e) {
e.printStackTrace();
}finally{
session.close();
}
return list;
}
}
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5.业务逻辑层
（1）接口MemberService.java
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package com.service;
import java.util.List;
import com.entity.Member;
public interface MemberService {
public void add(Member member);
public void update(Member member);
public void delete(
long id);
public Member findByName(String name,String password);
public Member findById(
long id);
public List<Member>
findAll();
}
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（2）实现类MemberServiceImpl.java(设值注入DAO层组件)
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package com.service;
import java.util.List;
import com.dao.MemberDAO;
import com.entity.Member;
public class MemberServiceImpl
implements MemberService {
private MemberDAO memberDao;
//设值注入DAO对象
public void setMemberDao(MemberDAO memberDao) {
this.memberDao =
memberDao;
}
@Override
public void add(Member member) {
if(memberDao.findById(member.getId())==
null)
memberDao.add(member);
}
@Override
public void update(Member member) {
if(memberDao.findById(member.getId())!=
null)
memberDao.update(member);
}
@Override
public void delete(
long id) {
if(memberDao.findById(id)!=
null)
memberDao.delete(id);
}
@Override
public Member findByName(String name, String password) {
return memberDao.findByName(name, password);
}
@Override
public Member findById(
long id) {
return memberDao.findById(id);
}
@Override
public List<Member>
findAll() {
return memberDao.findAll();
}
}
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6. Action类
（1）注册MemberRegisterAction.java（设值注入业务逻辑组件）
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package com.action;
import com.entity.Member;
import com.opensymphony.xwork2.ActionSupport;
import com.service.MemberService;
public class MemberRegisterAction
extends ActionSupport {
private Member member;
private MemberService memberService;
public Member getMember() {
return member;
}
public void setMember(Member member) {
this.member =
member;
}
//注入业务逻辑组件
public void setMemberService(MemberService memberService) {
this.memberService =
memberService;
}
public String execute(){
memberService.add(member);
return SUCCESS;
}
}
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（2）删除MemberDeleteAction.java(设置注入业务逻辑组件，注意传入参数id的相应getter和setter方法)
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package com.action;
import com.opensymphony.xwork2.ActionSupport;
import com.service.MemberService;
public class MemberDeleteAction
extends ActionSupport {
private MemberService memberService;
public void setMemberService(MemberService memberService) {
this.memberService =
memberService;
}
private long id;
public long getId() {
return id;
}
public void setId(
long id) {
this.id =
id;
}
public String execute(){
memberService.delete(getId());
return SUCCESS;
}
}
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（3）查询MemberQueryAction.java(用于查看所有会员信息)
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package com.action;
import java.util.List;
import org.apache.struts2.ServletActionContext;
import com.entity.Member;
import com.opensymphony.xwork2.ActionSupport;
import com.service.MemberService;
public class MemberQueryAction
extends ActionSupport {
private MemberService memberService;
public void setMemberService(MemberService memberService) {
this.memberService =
memberService;
}
public String execute(){
List<Member> list =
memberService.findAll();
ServletActionContext.getRequest().setAttribute("memberList"
, list);
return SUCCESS;
}
}
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（4）修改MemberUpdateAction.java(有两个方法，execute（）和showMember（），当需要修改时，showMember（）方法转向update.jsp.并设置好需要修改的对象，修改完成之后，由spring托管的memberUpdateAction组件执行execute方法进行update操作)
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package com.action;
import com.entity.Member;
import com.opensymphony.xwork2.ActionSupport;
import com.service.MemberService;
public class MemberUpdateAction
extends ActionSupport {
private MemberService memberService;
private Member member;
private long id;
public void setMemberService(MemberService memberService) {
this.memberService =
memberService;
}
public Member getMember() {
return member;
}
public void setMember(Member member) {
this.member =
member;
}
public long getId() {
return id;
}
public void setId(
long id) {
this.id =
id;
}
public String showMember(){
Member mb =
memberService.findById(getId());
setMember(mb);
return SUCCESS;
}
public String execute(){
memberService.update(member);
return SUCCESS;
}
}
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（5）登录MemberLoginAction.java（将输入的信息与数据库中进行比较）
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package com.action;
import com.entity.Member;
import com.opensymphony.xwork2.ActionSupport;
import com.service.MemberService;
public class MemberLoginAction
extends ActionSupport {
private Member member;
private MemberService memberService;
public Member getMember() {
return member;
}
public void setMember(Member member) {
this.member =
member;
}
//注入业务逻辑组件
public void setMemberService(MemberService memberService) {
this.memberService =
memberService;
}
public String execute(){
Member mb =
memberService.findByName(member.getName(), member.getPassword());
if(mb!=
null)
return SUCCESS;
else
return ERROR;
}
}
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7.struts.xml
spring托管将Struts2中的Action的实例化工作交由Spring容器统一管理，同时使Struts2中的Action实例能够访问Spring提供的业务逻辑资源，spring容器依赖注入的优势也可以体现，Struts2提供的spring插件struts2-spring-plugin-2.3.16.3.jar配合<constant name="struts.objectFactory" value="spring">使得Struts2的action由Spring来负责进行实例化.
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<?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>
<constant name="struts.devMode" value="true" />
<constant name="struts.objectFactory" value="spring"></constant>
<
package name="default" namespace="/"
extends="struts-default">
<!-- class属性值是spring定义的Bean，当执行execute（）返回success时，控制转到另一个动作memberQuery -->
<action name="memberRegister"
class="memberRegisterAction">
<result name="success" type="redirectAction">/memberQuery</result>
</action>
<action name="memberLogin"
class="memberLoginAction">
<result name="success">/welcome.jsp</result>
<result name="error">/register.jsp</result>
</action>
<action name="memberQuery"
class="memberQueryAction">
<result name="success">/displayAll.jsp</result>
</action>
<action name="memberDelete"
class="memberDeleteAction">
<result name="success" type="redirectAction">/memberQuery</result>
</action>
<action name="memberShow"
class="memberUpdateAction" method="showMember">
<result name="success">/update.jsp</result>
</action>
<action name="memberUpdate"
class="memberUpdateAction">
<result name="success" type="redirectAction">/memberQuery</result>
</action>
</
package>
</struts>
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8.applicationContext.xml
spring 框架提供了多种数据源类，可以使用spring提供的DriverManagerDataSource类还可以使用第三方数据源，如C3P0的ComboPooledDataSource数据源类，注意相应的两个jar包c3p0-0.9.2.1.jar mchange-commons-java-0.2.3.4.jar.
Hibernate4已经完全实现自己的事物管理，所以spring4不提供HibernateDaoSupport和HibernateTemplete的支持。可以在应用程序的spring上下文中，像配置其他bean那样来配置HibernateSession工厂。如果要使用XML文件定义对象与数据库之间的映射，则需要在spring中配置LocalSessionFactoryBean。hibernateProperties属性配置了Hibernate如何进行操作的细节。"hibernate.current_session_context_class"是为当前Session提供一个策略，Session由org.springframework.orm.hibernate4.SpringSessionContext.currentSession得到。将sessionFactory注入到其他Bean中，如注入到DAO组件中，使其获得SessionFactory的引用后，就可以实现对数据库的访问。
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<?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"
xsi:schemaLocation="http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans-4.3.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context-4.3.xsd">
<bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource" destroy-method="close">
<property name="driverClass" value="com.mysql.jdbc.Driver"/>
<property name="jdbcUrl" value="jdbc:mysql://localhost:3306/zzh?useUnicode=true&characterEncoding=UTF-8"/>
<property name="user" value="root"/>
<property name="password" value="root"/>
<property name="maxPoolSize" value="40"/>
<property name="minPoolSize" value="1"/>
<property name="initialPoolSize" value="2"/>
<property name="maxIdleTime" value="20"/>
</bean>
<bean id="sessionFactory" class="org.springframework.orm.hibernate4.LocalSessionFactoryBean">
<property name="dataSource" ref="dataSource"/>
<property name="mappingResources">
<list>
<value>com/entity/Member.hbm.xml
</value>
</list>
</property>
<property name="hibernateProperties">
<props>
<prop key="hibernate.show_sql">true
</prop>
<prop key="hibernate.hbm2ddl.auto">update
</prop>
<prop key="hibernate.temp.use_jdbc_metadata_defaults">false
</prop>
<prop key="hibernate.current_session_context_class">
org.springframework.orm.hibernate4.SpringSessionContext
</prop>
<prop key="hibernate.dialect">org.hibernate.dialect.MySQLDialect
</prop>
</props>
</property>
</bean>
<bean id="memberDao" class="com.dao.MemberDAOImpl">
<!-- 构造方法注入会话工厂组件sessionFactory -->
<constructor-arg>
<ref bean="sessionFactory"/>
</constructor-arg>
</bean>
<bean id="memberService" class="com.service.MemberServiceImpl">
<!-- 设值注入DAO组件 -->
<property name="memberDao" ref="memberDao"></property>
</bean>
<bean id="memberRegisterAction" class="com.action.MemberRegisterAction">
<!-- 设值注入业务逻辑组件 -->
<property name="memberService" ref="memberService"></property>
</bean>
<bean id="memberLoginAction" class="com.action.MemberLoginAction">
<property name="memberService" ref="memberService"></property>
</bean>
<bean id="memberQueryAction" class="com.action.MemberQueryAction">
<property name="memberService" ref="memberService"></property>
</bean>
<bean id="memberDeleteAction" class="com.action.MemberDeleteAction">
<property name="memberService" ref="memberService"></property>
</bean>
<bean id="memberUpdateAction" class="com.action.MemberUpdateAction">
<property name="memberService" ref="memberService"></property>
</bean>
</beans>
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9.jsp
（1）注册register.jsp
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<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<%@ taglib prefix="s" uri="/struts-tags" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>会员注册页面</title>
</head>
<body>
<s:form action="memberRegister" method="post">
<h4><s:text name="欢迎注册会员"></s:text></h4>
<s:property value="exception.message"/>
<s:textfield name="member.name" label="会员姓名" tooltip="Enter your name!" required="true"></s:textfield>
<s:password name="member.password" label="会员口令" tooltip="Enter your password!"></s:password>
<s:textfield name="member.address" label="会员地址"></s:textfield>
<s:textfield name="member.email" label="会员邮箱"></s:textfield>
<s:textfield name="member.level" label="会员级别"></s:textfield>
<s:submit value="提交"/>
</s:form>
</body>
</html>
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（2）所有会员信息displayAll.jsp
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<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<%@ taglib prefix="s" uri="/struts-tags" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>显示会员信息</title>
</head>
<body>
<h4>会员信息</h4>
<table border='1'>
<tr>
<td>会员id</td><td>会员名</td><td>密码</td><td>地址</td><td>邮箱</td><td>级别</td><td>删除</td><td>修改</td>
</tr>
<s:iterator value="#request.memberList" id="mb">
<tr>
<td><s:property value="#mb.id"/></td>
<td><s:property value="#mb.name"/></td>
<td><s:property value="#mb.password"/></td>
<td><s:property value="#mb.address"/></td>
<td><s:property value="#mb.email"/></td>
<td><s:property value="#mb.level"/></td>
<td>
<a href="<s:url action="memberDelete"><s:param name="id"><s:property value="#mb.id"/></s:param>
</s:url>">删除</a>
</td>
<td>
<a href="<s:url action="memberShow"><s:param name="id"><s:property value="#mb.id"/></s:param>
</s:url>">修改</a>
</td>
</tr>
</s:iterator>
</table>
<a href="register.jsp">返回注册页面</a>
</body>
</html>
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（3）修改页面update.jsp
注意：不允许修改会员id，当需要将会员id传递给更新会员动作，所以使用隐藏表单域标签来接收显示会员页面传递来的会员id在update.jsp页面提交时再传递给更新会员的动作memberUpdate。
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<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<%@ taglib prefix="s" uri="/struts-tags" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>修改会员信息</title>
</head>
<body>
<s:form action="memberUpdate" method="post">
<h4><s:text name="修改会员信息"></s:text></h4>
<s:actionerror/>
<s:hidden name="member.id" value="%{member.id}"></s:hidden>
<s:textfield name="member.name" label="会员姓名" required="true"></s:textfield>
<s:textfield name="member.password" label="会员口令"></s:textfield>
<s:textfield name="member.address" label="会员地址"></s:textfield>
<s:textfield name="member.email" label="会员邮箱"></s:textfield>
<s:textfield name="member.level" label="会员级别"></s:textfield>
<s:submit value="提交"/>
</s:form>
</body>
</html>
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（4）登录login.jsp
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<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<%@ taglib prefix="s" uri="/struts-tags" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>会员登录</title>
</head>
<body>
<s:form action="memberLogin" method="post">
<s:textfield name="member.name" label="会员姓名"></s:textfield>
<s:password name="member.password" label="会员口令"></s:password>
<s:submit value="提交"></s:submit>
</s:form>
</body>
</html>
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（5）welcome.jsp
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<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>贵宾你好！</title>
</head>
<body>
合法成员
</body>
</html>
View Code
10. END
github地址：（https://github.com/byzhaozihan/s2sh_entry-level）
本篇案例算是最简单的ssh整合，注入形式也都一目了然，如果对你有帮助，请点赞或关注我，谢谢观看！
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