SSH的增删改查

LIN_17970

于 2019-07-28 23:08:02 发布

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分类专栏： hibernate struts spring 文章标签： SSH的增删改查

本文链接：https://blog.youkuaiyun.com/LIN_17970/article/details/97620843

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这篇博客详细介绍了使用SSH框架进行用户登录注册和文章管理的增删改查实现。涵盖了从实体类的设计如User和Article，到对应的XML配置文件，包括Spring和Struts的配置，以及主要的上下文和Hibernate配置。

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User的登陆和注册和树形菜单

实体类

User

public class User extends BaseEntity {
	private static final long serialVersionUID = 1L;

	private String uname;
	private String upwd;
	public String getUname() {
		return uname;
	}
	public void setUname(String uname) {
		this.uname = uname;
	}
	public String getUpwd() {
		return upwd;
	}
	public void setUpwd(String upwd) {
		this.upwd = upwd;
	}
	@Override
	public String toString() {
		return "User [uname=" + uname + ", upwd=" + upwd + "]";
	}
}

User.hbm.xml

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE hibernate-mapping PUBLIC 
    "-//Hibernate/Hibernate Mapping DTD 3.0//EN"
    "http://www.hibernate.org/dtd/hibernate-mapping-3.0.dtd">
<hibernate-mapping>
	<class table="t_vue_user" name="com.user.entity.User">
		<id name="uname" type="java.lang.String" column="uname"></id>	
		<property name="upwd" type="java.lang.String" column="pwd"></property>
	</class>
</hibernate-mapping>

TreeNode

public class TreeNode {
	private Integer nodeId;
	private String nodeName;
	private Integer treeNodeType;
	private Integer position;
	private String url;
	private TreeNode parent;
	private Set<TreeNode> children = new HashSet<TreeNode>();
	private Integer initChildren = 0;
	public Integer getNodeId() {
		return nodeId;
	}
	public void setNodeId(Integer nodeId) {
		this.nodeId = nodeId;
	}
	public String getNodeName() {
		return nodeName;
	}
	public void setNodeName(String nodeName) {
		this.nodeName = nodeName;
	}
	public Integer getTreeNodeType() {
		return treeNodeType;
	}
	public void setTreeNodeType(Integer treeNodeType) {
		this.treeNodeType = treeNodeType;
	}
	public Integer getPosition() {
		return position;
	}
	public void setPosition(Integer position) {
		this.position = position;
	}
	public String getUrl() {
		return url;
	}
	public void setUrl(String url) {
		this.url = url;
	}
	public TreeNode getParent() {
		return parent;
	}
	public void setParent(TreeNode parent) {
		this.parent = parent;
	}
	public Set<TreeNode> getChildren() {
		return children;
	}
	public void setChildren(Set<TreeNode> children) {
		this.children = children;
	}
	public Integer getInitChildren() {
		return initChildren;
	}
	public void setInitChildren(Integer initChildren) {
		this.initChildren = initChildren;
	}
	@Override
	public String toString() {
		return "TreeNode [nodeId=" + nodeId + ", nodeName=" + nodeName + ", treeNodeType=" + treeNodeType
				+ ", position=" + position + ", url=" + url + ", parent=" + parent + ", children=" + children
				+ ", initChildren=" + initChildren + "]";
	}
}

TreeNobe.hbm.xml

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE hibernate-mapping PUBLIC 
    "-//Hibernate/Hibernate Mapping DTD 3.0//EN"
    "http://www.hibernate.org/dtd/hibernate-mapping-3.0.dtd">
<hibernate-mapping>
	<class table="t_vue_tree_node" name="com.node.entity.TreeNode">
		<id name="treenodeid" type="java.lang.Integer" column="tree_node_id">
			<generator class="increment"></generator>
		</id>
		<property name="treenodename" type="java.lang.String" column="tree_node_name"></property>
		<property name="treenodetype" type="java.lang.Integer" column="tree_node_type"></property>
		<property name="parentnodeid" type="java.lang.Integer" column="parent_node_id"></property>
		<property name="url" type="java.lang.String" column="url"></property>
		<property name="position" type="java.lang.Integer" column="position"></property>
		<property name="icon" type="java.lang.String" column="icon"></property>
	</class>
</hibernate-mapping>

Userdao

public class UserDao extends BaseDao {

/**
 * 登录方法
 * @param user
 * @return
 */
public List<User> list(User user){
		
		return this.getHibernateTemplate().execute(new HibernateCallback<List<User>>() {
			//重写方法
			@Override
			public List<User> doInHibernate(Session arg0) throws HibernateException {
				Query query = arg0.createQuery("from User");
				String uname = user.getUname();
				String upwd = user.getUpwd();
				if(StringUtils.isNotBlank(uname)&& StringUtils.isNotBlank(upwd)) {
						 query = arg0.createQuery("from User where uname = :uname and upwd = :upwd ");
						 query.setParameter("uname", uname);
						 query.setParameter("upwd", upwd);
				}
				return query.list();
			}
		});
	}

/**
 * 注册用户方法
 * @param user
 * @return
 */
public int add(User user) {
	Serializable a = this.getHibernateTemplate().save(user);
	int n = 0;
	if(StringUtils.isNotBlank(a+"")) {
		n=1;
	}
	return  n;
}

/**
 * 查看树形菜单
 * @return
 */

public List<TreeNode> listNode(){
	
	return this.getHibernateTemplate().execute(new HibernateCallback<List<TreeNode>>() {
		//重写方法
		@Override
		public List<TreeNode> doInHibernate(Session session) throws HibernateException {
			return session.createQuery("from TreeNode").list();
		}
	});
}

}

UserBiz

public interface UserBiz {
	public List<User> list(User user);//登录
	public int add(User user);//注册
	public List<TreeNode> listNode();
}

UserBizimpl

public class UserBizImpl implements UserBiz {

	private UserDao userdao;
	
	public UserDao getUserdao() {
		return userdao;
	}

	public void setUserdao(UserDao userdao) {
		this.userdao = userdao;
	}

	@Override
	public List<User> list(User user) {
		// TODO Auto-generated method stub
		return userdao.list(user);
	}

	@Override
	public int add(User user) {
		// TODO Auto-generated method stub
		return userdao.add(user);
	}

	@Override
	public List<TreeNode> listNode() {
		// TODO Auto-generated method stub
		return userdao.listNode();
	}
	
}

UserAcrion

public class UserAction extends BaseAction implements ModelDriven<User> {

	private static final long serialVersionUID = 1L;

	private User user =new User();
	
	private UserBiz userBiz;
	
	
	public User getUser() {
		return user;
	}

	public void setUser(User user) {
		this.user = user;
	}
	public UserBiz getUserBiz() {
		return userBiz;
	}

	public void setUserBiz(UserBiz userBiz) {
		this.userBiz = userBiz;
	}

/**
 * 登录
 * @return
 */
	public String dologin() {
		
		List<User> list = userBiz.list(user);
		if(list.size()>0) {
			System.out.println("登录成功");
		}
		else {
			System.out.println("登录失败，用户名或密码错误");
		}
		return null;
	}
/**
 * 注册
 * @return
 */

public String addUser() {
		
		int n = userBiz.add(user);
		if(n>0) {
			System.out.println("注册成功");
		}
		else {
			System.out.println("注册失败");
		}
		
		return null;
	}

/**
 * 菜单
 * @return
 */
public String listNode() {
	List<TreeNode> listNode = userBiz.listNode();
	for (TreeNode treeNode : listNode) {
		System.out.println(treeNode);
	}
	
	return null;
}

	@Override
	public User getModel() {
		// TODO Auto-generated method stub
		return null;
	}

}

配置spring跟struts

Spring-user.xml

<?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:aop="http://www.springframework.org/schema/aop"
	xmlns:context="http://www.springframework.org/schema/context"
	xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
		http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-4.3.xsd
		http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.3.xsd">
	
		<bean id="userDao" class="com.user.dao.UserDao" parent="baseDao" ></bean>
		<bean id="userBiz" class="com.user.biz.UserBizImpl" parent="baseBiz" >
			<property name="userDao" ref="userDao"></property>
		</bean>
		
		<bean id="userAction" class="com.user.web.UserAction" parent="baseAction">
			<property name="userBiz" ref="userBiz"></property>
		</bean>
</beans>

Struts-user.xml

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE struts PUBLIC
	"-//Apache Software Foundation//DTD Struts Configuration 2.5//EN"
	"http://struts.apache.org/dtds/struts-2.5.dtd">
<struts>
	<package name="user" extends="base" namespace="/user">
		<action name="/user_*" class="userAction" method="{1}">
			
		</action>
	</package>
</struts>

Article的增删改查

实体类

Article

/**
 * 文章属性
 * @author 林凡
 *
 */
public class Article extends BaseEntity {
	private static final long serialVersionUID = 1L;
	
	private int id;
	private String title;
	private String body;
	public int getId() {
		return id;
	}
	public void setId(int id) {
		this.id = id;
	}
	public String getTitle() {
		return title;
	}
	public void setTitle(String title) {
		this.title = title;
	}
	public String getBody() {
		return body;
	}
	public void setBody(String body) {
		this.body = body;
	}
	@Override
	public String toString() {
		return "Article [id=" + id + ", title=" + title + ", body=" + body + "]";
	}	
}

Article.hbm.xml

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE hibernate-mapping PUBLIC 
    "-//Hibernate/Hibernate Mapping DTD 3.0//EN"
    "http://www.hibernate.org/dtd/hibernate-mapping-3.0.dtd">
<hibernate-mapping>
	<class table="t_vue_articles" name="com.article.entity.Article">
		<id name="id" type="java.lang.Integer" column="id">
			<generator class="increment"></generator>
		</id>
		
		<property name="title" type="java.lang.String" column="title"></property>
		<property name="body" type="java.lang.String" column="body"></property>
	</class>
</hibernate-mapping>

ArticleDao

public class ArticleDao extends BaseDao {
 
	/**
	 * 查询书籍
	 * @return
	 */
	public List<Article> list(){
		return this.getHibernateTemplate().execute(new HibernateCallback<List<Article>>(){
			@Override
			public List<Articles> doInHibernate(Session session) throws HibernateException {
				
				return session.createQuery("from Article").list();
			}
	
		}
	}
	/**
	 * 增加数据
	 * @param articles
	 * @return
	 */
	public int add(Article article) {
		
		Serializable a = this.getHibernateTemplate().save(article);
		int n = 0;
		System.out.println(a);
		if(StringUtils.isNotBlank(a+"")) {
			n = 1;
		}
		return n;
	}
	

	/**
	 * 修改书籍
	 * @param articles
	 * @return
	 */
	public int edit(Article article) {
		
		this.getHibernateTemplate().update(article);
		
		return 1;
	}
	
	/**
	 * 删除书籍
	 * @param article
	 * @return
	 */
	public int delete(Article article) {
		
		this.getHibernateTemplate().delete(article);
			
		return 1;
	}
}

ArticleBiz

public interface ArticleBiz {
	public List<Article> list();
	public int add(Article article);
	public int edit(Article article);
	public int delete(Article article);
}

ArticleBizImpl

public class ArticleBizImpl implements ArticleBiz {

	private ArticleDao articleDao;
	
	public ArticleDao getArticleDao() {
		return articleDao;
	}

	public void setArticleDao(ArticleDao articleDao) {
		this.articleDao = articleDao;
	}

	@Override
	public List<Article> list() {
		// TODO Auto-generated method stub
		return articleDao.list();
	}

	@Override
	public int add(Article article) {
		// TODO Auto-generated method stub
		return articleDao.add(article);
	}

	@Override
	public int edit(Article article) {
		// TODO Auto-generated method stub
		return articleDao.edit(article);
	}

	@Override
	public int delete(Article article) {
		// TODO Auto-generated method stub
		return articleDao.delete(article);
	}
}

ArticleAction

public class ArticleDao extends BaseDao {
 
	/**
	 * 查询书籍
	 * @return
	 */
	public List<Article> list(){
		return this.getHibernateTemplate().execute(new HibernateCallback<List<Article>>(){
			@Override
			public List<Articles> doInHibernate(Session session) throws HibernateException {
				
				return session.createQuery("from Article").list();
			}
	
		}
	}
	/**
	 * 增加数据
	 * @param articles
	 * @return
	 */
	public int add(Article article) {
		
		Serializable a = this.getHibernateTemplate().save(article);
		int n = 0;
		System.out.println(a);
		if(StringUtils.isNotBlank(a+"")) {
			n = 1;
		}
		return n;
	}
	

	/**
	 * 修改书籍
	 * @param articles
	 * @return
	 */
	public int edit(Article article) {
		
		this.getHibernateTemplate().update(article);
		
		return 1;
	}
	
	/**
	 * 删除书籍
	 * @param article
	 * @return
	 */
	public int delete(Article article) {
		
		this.getHibernateTemplate().delete(article);
			
		return 1;
	}
}

配置spring和struts

spring-article.xml

<?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:aop="http://www.springframework.org/schema/aop"
	xmlns:context="http://www.springframework.org/schema/context"
	xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
		http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-4.3.xsd
		http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.3.xsd">
	
	<bean id="articleDao" class="com.article.dao.ArticleDao" parent="baseDao"></bean>
	<bean id="articleBiz" class="com.article.biz.ArticleBizImpl" parent="baseBiz">
		<property name="articleDao" ref="articleDao"></property>
	</bean>
	<bean id="articleAction" class="com.article.web.ArticleAction" parent="baseAction">
		<property name="articleBiz" ref="articleBiz"></property>
	</bean>
	
</beans>

struts-article.xml

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE struts PUBLIC
	"-//Apache Software Foundation//DTD Struts Configuration 2.5//EN"
	"http://struts.apache.org/dtds/struts-2.5.dtd">
<struts>
	<package name="articles" extends="base" namespace="/articles">
		<action name="/articles_*" class="articlesAction" method="{1}">
			
		</action>
	</package>
</struts>

配置主要文件

spring-context.xml

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
	xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd">

	<import resource="spring-hibernate.xml"/>
	<import resource="spring-book.xml"/>
	<import resource="spring-user.xml"/>
	<import resource="spring-article.xml"/>
</beans>

spring-hibernate.xml


<?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:aop="http://www.springframework.org/schema/aop"
	xmlns:context="http://www.springframework.org/schema/context" xmlns:tx="http://www.springframework.org/schema/tx"
	xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
		http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-4.3.xsd
		http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.3.xsd
		http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-4.3.xsd">

	
	<!-- 2、配置数据库连接池C3P0 -->
	<!-- 注册数据库连接文件db.properties -->
	<context:property-placeholder location="classpath:db.properties" />

	<!-- 配置c3p0连接池 -->
	<bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource">
		<property name="user" value="${db.username}"></property>
		<property name="password" value="${db.password}"></property>
		<property name="driverClass" value="${db.driverClass}"></property>
		<property name="jdbcUrl" value="${db.jdbcUrl}"></property>

		<!--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="${db.initialPoolSize}"></property>
		<!--连接池中保留的最大连接数。Default: 15 -->
		<property name="maxPoolSize" value="${db.maxPoolSize}"></property>
		<!--连接池中保留的最小连接数。 -->
		<property name="minPoolSize" value="${db.minPoolSize}" />
		<!--最大空闲时间,60秒内未使用则连接被丢弃。若为0则永不丢弃。Default: 0 -->
		<property name="maxIdleTime" value="${db.maxIdleTime}" />

		<!--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="${db.acquireIncrement}" />

		<!--JDBC的标准参数，用以控制数据源内加载的PreparedStatements数量。但由于预缓存的statements 属于单个connection而不是整个连接池。 
			所以设置这个参数需要考虑到多方面的因素。如果maxStatements与maxStatementsPerConnection均为0，则缓存被关闭。Default: 
			0 -->
		<property name="maxStatements" value="${db.maxStatements}" />

		<!--每60秒检查所有连接池中的空闲连接。Default: 0 -->
		<property name="idleConnectionTestPeriod" value="${db.idleConnectionTestPeriod}" />

		<!--定义在从数据库获取新连接失败后重复尝试的次数。Default: 30 -->
		<property name="acquireRetryAttempts" value="${db.acquireRetryAttempts}" />

		<!--获取连接失败将会引起所有等待连接池来获取连接的线程抛出异常。但是数据源仍有效 保留，并在下次调用getConnection()的时候继续尝试获取连接。 
			如果设为true，那么在尝试 获取连接失败后该数据源将申明已断开并永久关闭。Default: false -->
		<property name="breakAfterAcquireFailure" value="${db.breakAfterAcquireFailure}" />

		<!--因性能消耗大请只在需要的时候使用它。如果设为true那么在每个connection提交的 时候都将校验其有效性。建议使用idleConnectionTestPeriod 
			或automaticTestTable 等方法来提升连接测试的性能。Default: false -->
		<property name="testConnectionOnCheckout" value="${db.breakAfterAcquireFailure}" />
	</bean>

	<!-- 3、配置sessionfactory相关信息 -->
	<bean id="sessionFactory"
		class="org.springframework.orm.hibernate5.LocalSessionFactoryBean">
		<!-- 数据源 -->
		<property name="dataSource">
			<ref bean="dataSource" />
		</property>
		<!-- hibernate相关属性 -->
		<property name="hibernateProperties">
			<props>
				<prop key="dialect">org.hibernate.dialect.MySQLDialect</prop>
				<!--spring与Hibernate集成无法显示sql语句问题，请见集成后hibernate无法显示sql语句.txt -->
				<prop key="hibernate.show_sql">true</prop>
				<prop key="hibernate.format_sql">true</prop>
			</props>
		</property>
		<!-- 实体映射文件 -->
		<property name="mappingResources">
			<list>
				<value>com/book/entity/Book.hbm.xml</value>
				<value>com/user/entity/User.hbm.xml</value>
				<value>com/article/entity/Article.hbm.xml</value>
			</list>
		</property>
	</bean>

	<!-- 4、配置事务 -->
	<!--声明式事务配置开始 -->
	<!-- 
		静态代理：
			一个代理对象->一个目标对象
			BookProxy(BookBizImpl+myMethodBeforeAdvice)->bookBiz
			OrderProxy(OrderBizImpl+myMethodBeforeAdvice2)->	OrderBiz
		
		动态代理：
			一个代理对象->多个目标对象
	 -->
	
	<!--1) 开启自动代理 -->
	<aop:aspectj-autoproxy />

	<!--2) 事务管理器 -->
	<!--下面定义了增删改查事物规则，意味着只有符合下面命名规则的方法，才会获取到session，以及提交事务  -->
	<bean id="transactionManager"
		class="org.springframework.orm.hibernate5.HibernateTransactionManager">
		<property name="sessionFactory" ref="sessionFactory" />
	</bean>

	<!--3) 定义事务特性 -->
	<!-- 下面定义了增删改查事务规则，以为这只有符合下面命名规则的方法，才会获取到session，以及提交事务 -->
	<tx:advice id="txAdvice" transaction-manager="transactionManager">
		<tx:attributes>
			<tx:method name="add*" propagation="REQUIRED" />
			<tx:method name="save*" propagation="REQUIRED" />
			<tx:method name="insert*" propagation="REQUIRED" />

			<tx:method name="edit*" propagation="REQUIRED" />
			<tx:method name="update*" propagation="REQUIRED" />

			<tx:method name="del*" propagation="REQUIRED" />
			<tx:method name="remove*" propagation="REQUIRED" />

			<tx:method name="load*" propagation="REQUIRED" read-only="true" />
			<tx:method name="list*" propagation="REQUIRED" read-only="true" />
			<tx:method name="select*" propagation="REQUIRED" read-only="true" />
			<tx:method name="query*" propagation="REQUIRED" read-only="true" />

			<tx:method name="do*" propagation="REQUIRED" />
		</tx:attributes>
	</tx:advice>

	<!--4) 定义切入点 -->
	<aop:config>
		<!-- pointcut属性用来定义一个切入点，分成四个部分理解 [* ][*..][*Biz][.*(..)] -->
		<!-- A： 返回类型，*表示返回类型不限 -->
		<!-- B： 包名，*..表示包名不限 -->
		<!-- C： 类或接口名，*Biz表示类或接口必须以Biz结尾 -->
		<!-- D： 方法名和参数，*(..)表示方法名不限，参数类型和个数不限 -->
	<!--配置声明式事务  -->
		<aop:advisor advice-ref="txAdvice" pointcut="execution(* *..*Biz.*(..))" />
		<!-- 为什么一定要切在biz对应的接口上 -->
	</aop:config>
	<!-- 声明式事务配置结束 -->

	<!-- 5、配置HibernateTemplate 相当于session  -->
	<bean class="org.springframework.orm.hibernate5.HibernateTemplate" id="hibernateTemplate">
		<property name="sessionFactory" ref="sessionFactory"></property>
	</bean>
	<!-- 6、分模块开发（只配置base模块） -->
	<bean class="com.base.entity.BaseEntity" abstract="true" id="baseEntity"></bean>
	<bean class="com.base.dao.BaseDao" abstract="true" id="baseDao" >
		<property name="hibernateTemplate" ref="hibernateTemplate"></property>
	</bean>
	<bean class="com.base.biz.BaseBiz" abstract="true" id="baseBiz"></bean>
	<bean class="com.base.web.BaseAction" abstract="true" id="baseAction"></bean> 
</beans>