SSH案例--入門級，ssh案例--
1.項目功能展示
（1）注冊
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（2）修改地址與級別信息，點擊修改
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（3）再添加一位成員，進行刪除
點擊第二行的刪除
（4）登錄模塊測試
輸入數據庫中沒有的信息：
輸入數據庫中存在的信息：
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2. Web.xml
Spring提供了ContextLoaderListener，該監聽器實現了ServletContextListener接口，他在Web應用程序啟動時被觸發。當他創建時會自動查找WEB-INF/下的applicationContext.xml，所以當只有一個配置文件且文件名為applicationContext.xml時，則只需要在web.xml文件中配置ContextLoaderListener監聽器即可.當有多個配置文件需要載入，則應該使用<context-param>元素指定配置文件的文件名，ContextLoaderListener加載時，會查找名為contextConfigLocation的初始化參數。當Web應用程序啟動時先讀取web.xml文件，然後創建spring容器，之後根據配置文件內容，裝配Bean實例。
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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. 實體類與其映射文件
（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層
（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）實現類MemberDAOImpl.java(sessionFactory通過構造方法注入，使其可以操作數據庫)
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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;
//構造方法注入SessionFactory對象
public MemberDAOImpl(SessionFactory sessionFactory) {
this.sessionFactory=sessionFactory;
}
//使用SessionFactory對象返回Session對象
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.業務邏輯層
（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）實現類MemberServiceImpl.java(設值注入DAO層組件)
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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;
//設值注入DAO對象
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類
（1）注冊MemberRegisterAction.java（設值注入業務邏輯組件）
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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;
}
//注入業務邏輯組件
public void setMemberService(MemberService memberService) {
this.memberService = memberService;
}
public String execute(){
memberService.add(member);
return SUCCESS;
}
}
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（2）刪除MemberDeleteAction.java(設置注入業務邏輯組件，注意傳入參數id的相應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）查詢MemberQueryAction.java(用於查看所有會員信息)
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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(有兩個方法，execute（）和showMember（），當需要修改時，showMember（）方法轉向update.jsp.並設置好需要修改的對象，修改完成之後，由spring托管的memberUpdateAction組件執行execute方法進行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）登錄MemberLoginAction.java（將輸入的信息與數據庫中進行比較）
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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;
}
//注入業務邏輯組件
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托管將Struts2中的Action的實例化工作交由Spring容器統一管理，同時使Struts2中的Action實例能夠訪問Spring提供的業務邏輯資源，spring容器依賴注入的優勢也可以體現，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來負責進行實例化.
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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屬性值是spring定義的Bean，當執行execute（）返回success時，控制轉到另一個動作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 框架提供了多種數據源類，可以使用spring提供的DriverManagerDataSource類還可以使用第三方數據源，如C3P0的ComboPooledDataSource數據源類，注意相應的兩個jar包c3p0-0.9.2.1.jar mchange-commons-java-0.2.3.4.jar.
Hibernate4已經完全實現自己的事物管理，所以spring4不提供HibernateDaoSupport和HibernateTemplete的支持。可以在應用程序的spring上下文中，像配置其他bean那樣來配置HibernateSession工廠。如果要使用XML文件定義對象與數據庫之間的映射，則需要在spring中配置LocalSessionFactoryBean。hibernateProperties屬性配置了Hibernate如何進行操作的細節。"hibernate.current_session_context_class"是為當前Session提供一個策略，Session由org.springframework.orm.hibernate4.SpringSessionContext.currentSession得到。將sessionFactory注入到其他Bean中，如注入到DAO組件中，使其獲得SessionFactory的引用後，就可以實現對數據庫的訪問。
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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">
<!-- 構造方法注入會話工廠組件sessionFactory -->
<constructor-arg>
<ref bean="sessionFactory"/>
</constructor-arg>
</bean>
<bean id="memberService" class="com.service.MemberServiceImpl">
<!-- 設值注入DAO組件 -->
<property name="memberDao" ref="memberDao"></property>
</bean>
<bean id="memberRegisterAction" class="com.action.MemberRegisterAction">
<!-- 設值注入業務邏輯組件 -->
<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）注冊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>會員注冊頁面</title>
</head>
<body>
<s:form action="memberRegister" method="post">
<h4><s:text name="歡迎注冊會員"></s:text></h4>
<s:property value="exception.message"/>
<s:textfield name="member.name" label="會員姓名" tooltip="Enter your name!" required="true"></s:textfield>
<s:password name="member.password" label="會員口令" tooltip="Enter your password!"></s:password>
<s:textfield name="member.address" label="會員地址"></s:textfield>
<s:textfield name="member.email" label="會員郵箱"></s:textfield>
<s:textfield name="member.level" label="會員級別"></s:textfield>
<s:submit value="提交"/>
</s:form>
</body>
</html>
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（2）所有會員信息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>顯示會員信息</title>
</head>
<body>
<h4>會員信息</h4>
<table border='1'>
<tr>
<td>會員id</td><td>會員名</td><td>密碼</td><td>地址</td><td>郵箱</td><td>級別</td><td>刪除</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>">刪除</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">返回注冊頁面</a>
</body>
</html>
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（3）修改頁面update.jsp
注意：不允許修改會員id，當需要將會員id傳遞給更新會員動作，所以使用隱藏表單域標簽來接收顯示會員頁面傳遞來的會員id在update.jsp頁面提交時再傳遞給更新會員的動作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>修改會員信息</title>
</head>
<body>
<s:form action="memberUpdate" method="post">
<h4><s:text name="修改會員信息"></s:text></h4>
<s:actionerror/>
<s:hidden name="member.id" value="%{member.id}"></s:hidden>
<s:textfield name="member.name" label="會員姓名" required="true"></s:textfield>
<s:textfield name="member.password" label="會員口令"></s:textfield>
<s:textfield name="member.address" label="會員地址"></s:textfield>
<s:textfield name="member.email" label="會員郵箱"></s:textfield>
<s:textfield name="member.level" label="會員級別"></s:textfield>
<s:submit value="提交"/>
</s:form>
</body>
</html>
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（4）登錄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>會員登錄</title>
</head>
<body>
<s:form action="memberLogin" method="post">
<s:textfield name="member.name" label="會員姓名"></s:textfield>
<s:password name="member.password" label="會員口令"></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>貴賓你好！</title>
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10. END
本篇案例算是最簡單的ssh整合，注入形式也都一目了然，如果對你有幫助，請點贊或關注我，謝謝觀看！
