SSH框架整合2

Posted 2020-11-19 helloworldlx

===========================================web.xml===================================================
<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns="http://xmlns.jcp.org/xml/ns/javaee"
         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_4_0.xsd"
         version="4.0">

    <context-param>
        <param-name>contextConfigLocation</param-name>
        <param-value>classpath*:spring.xml</param-value>
    </context-param>
    <!--配置监听器-->
    <listener>
        <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
    </listener>

    <!--配置OpenSessionInView,需要配置在struts过滤器之前，否则会被过滤掉-->
    <filter>
        <filter-name>openSessionInView</filter-name>
        <filter-class>org.springframework.orm.hibernate5.support.OpenSessionInViewFilter</filter-class>
    </filter>
    <filter-mapping>
        <filter-name>openSessionInView</filter-name>
        <url-pattern>/*</url-pattern>
    </filter-mapping>

    <!-- Struts核心过滤器 -->
    <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>
</web-app>

=================================================spring.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/aop
        http://www.springframework.org/schema/aop/spring-aop.xsd
        http://www.springframework.org/schema/beans
        http://www.springframework.org/schema/beans/spring-beans.xsd
        http://www.springframework.org/schema/tx
        http://www.springframework.org/schema/tx/spring-tx.xsd
        http://www.springframework.org/schema/context
        http://www.springframework.org/schema/context/spring-context.xsd">

    <!--开启注解-->
    <context:annotation-config/>
    <!--告知spring要去哪个包找注解-->
    <context:component-scan base-package="com.ibeifeng.ssh"/>
    <aop:aspectj-autoproxy/>

    <bean name="myDataSource" class="org.apache.commons.dbcp.BasicDataSource" destroy-method="close">
        <!--配置数据库信息-->
        <property name="driverClassName" value="com.mysql.jdbc.Driver"/>
        <property name="url" value="jdbc:mysql://localhost:3306/houserent"/>
        <property name="username" value="root"/>
        <property name="password" value="123456"/>
    </bean>

    <!--配置session信息-->
    <bean id="sessionFactory" class="org.springframework.orm.hibernate5.LocalSessionFactoryBean">
        <property name="dataSource" ref="myDataSource"/>
        <!--由于这里我们使用的是注解的方式得到属性，因此使用packagesToScan,
        若在hibernate中使用hibernate.cfg.xml则在此处就使用mappingResources,
        作用是指定从哪个包中查找注解的model-->
        <property name="packagesToScan">
            <value>com.ssh.model</value>
        </property>
        <!--配置hibernate属性-->
        <property name="hibernateProperties">
            <props>
                <prop key="hibernate.dialect">org.hibernate.dialect.MySQL5Dialect</prop>
                <prop key="hibernate.hbm2ddl.auto">update</prop>
                <prop key="hibernate.show_sql">true</prop>
            </props>
        </property>
    </bean>

    <bean id="txManager" class="org.springframework.orm.hibernate5.HibernateTransactionManager">
        <!--注入sessionFactory-->
        <property name="sessionFactory" ref="sessionFactory"/>
    </bean>

    <!--配置事务增强，以及哪些方法使用什么样的规则-->
    <tx:advice id="txAdvice" transaction-manager="txManager">
        <tx:attributes>
            <!--*号表示所有的方法都加入事务-->
            <tx:method name="*" propagation="REQUIRED"/>
        </tx:attributes>
    </tx:advice>

    <!--spring事务的实现是基于AOP方式-->
    <aop:config>
        <!--定义切入点-->
        <aop:pointcut id="allMethod" expression="execution(* com.ssh.dao.*.*(..))"/>
        <aop:advisor advice-ref="txAdvice" pointcut-ref="allMethod"/>
    </aop:config>
</beans>

============================================struts.xml=================================================

<?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.enable.DynamicMethodInvocation" value="true"/>
    <package name="default" extends="struts-default">

        <!--使用通配符-->
        <action name="*_*" class="{1}Controller" method="{2}">
            <result name="success">{2}.jsp</result>
        </action>
    </package>
</struts>

===================================IBaseDao.java()(BaseDao的接口)=======================================

package com.ssh.dao;

public interface IBaseDao<T> {
    public void add(T t);
    public void update(T t);
    public void delete(int id);
    public T load(int id);
//    public List<T> list();
}

==============================BaseDao.java()(BaseDao实现类)===========================================

package com.ssh.dao;

import org.hibernate.SessionFactory;
import org.springframework.orm.hibernate5.support.HibernateDaoSupport;

import javax.annotation.Resource;
import java.lang.reflect.ParameterizedType;

public class BaseDao<T> extends HibernateDaoSupport implements IBaseDao<T> {
    /*BaseDao继承了HibernateDaoSupport，在HibernateDaoSupport中存在setSessionFactory方法可以直接
    设置SessionFactory，后面就不需要每次都去获取SessionFactory
    * */
    @Resource(name = "sessionFactory")
    private void setSuperSessionFactory(SessionFactory sessionFactory){
        super.setSessionFactory(sessionFactory);
    }

    @Override
    public void add(T t) {
        this.getHibernateTemplate().save(t);
    }

    @Override
    public void update(T t) {
        this.getHibernateTemplate().update(t);
    }

    @Override
    public void delete(int id) {
        this.getHibernateTemplate().delete(id);
    }

    public Class<T> getCla(){
        return (Class<T>)(((ParameterizedType)
                (this.getClass().getGenericSuperclass()))
                .getActualTypeArguments()[0]);
    }

    @Override
    public T load(int id) {
        /*由于在load()方法中需要给一个类作为参数，但现在还不知道具体是哪个类，因此需要
        一个得到类的方法getCla()
         */
        //在这里若使用load()方法需要在web.xml里面配置OpenSessionInView的过滤器,若使用get()则不要
        //return this.getHibernateTemplate().get(getCla(),id);
        return this.getHibernateTemplate().load(getCla(),id);
    }

/*由于在Hibernate5中find()方法以及被取消，所以该段注释掉
    @Override
    public List<T> list() {
        return (List<T>)this.getHibernateTemplate().find("Group");
    }

*/

}

===============================IGroupDao.java()(GroupDao的接口)====================================

package com.ssh.dao;

import com.ssh.model.Group;

public interface IGroupDao extends IBaseDao<Group>{
}

================================GroupDao.java()(GroupDao实现类)========================================

package com.ssh.dao;

import com.ssh.model.Group;
import org.springframework.stereotype.Repository;

@Repository
public class GroupDao extends BaseDao<Group> implements IGroupDao {

}

======================================IEmpDao.java()(EmpDao接口)==========================================

package com.ssh.dao;

import com.ssh.model.Employee;

public interface IEmpDao extends IBaseDao<Employee> {
}

========================================EmpDao.java()(EmpDao实现类)==========================================

package com.ssh.dao;

import com.ssh.model.Employee;

public class EmpDao extends BaseDao<Employee> implements IEmpDao {
}

==================================IGroupService.java()(GroupService接口)=================================

package com.ssh.service;

import com.ssh.model.Group;

public interface IGroupService {
    public void save(Group group);
    public Group load(int id);
    //GroupService需要使用哪些方法只要在接口中添加即可
}

============================GroupService.java()(GroupService实现类)======================================

package com.ssh.service;

import com.ssh.dao.IGroupDao;
import com.ssh.model.Group;
import org.springframework.stereotype.Service;
import javax.annotation.Resource;

@Service
public class GroupService implements IGroupService {
    private IGroupDao groupDao;

    @Resource
    public void setGroupDao(IGroupDao groupDao) {
        this.groupDao = groupDao;
    }

    @Override
    public void save(Group group) {
        groupDao.add(group);
    }

    @Override
    public Group load(int id) {
        return null;
    }
}

=======================GroupController.java()(GroupController实现类)======================================

package com.ssh.controller;

import com.ssh.model.Group;
import com.ssh.service.IGroupService;
import org.springframework.stereotype.Controller;
import javax.annotation.Resource;

@Controller("groupController")
public class GroupController {
    private IGroupService groupService;
    //需要保存哪些类的数据，就在这里定义哪些类来接收数据
    private Group group;

    public Group getGroup() {
        return group;
    }

    public void setGroup(Group group) {
        this.group = group;
    }

    @Resource
    public void setGroupService(IGroupService groupService) {
        this.groupService = groupService;
    }

    public String add(){
        groupService.save(group);
        return "success";
    }
}

===================================Group.java()(Group实现类)==============================================

package com.ssh.model;

import org.hibernate.annotations.GenericGenerator;
import javax.persistence.*;

@Entity
@Table(name="t_group")
public class Group {
    private int id;
    private String name;

    public Group(){}

    public Group(int id, String name) {
        this.id = id;
        this.name = name;
    }

    @Id
    @GenericGenerator(name = "increment",strategy = "increment")
    @GeneratedValue(generator = "increment")
    public int getId() {
        return id;
    }

    public void setId(int id) {
        this.id = id;
    }

    @Column(name="name")
    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

    @Override
    public String toString() {
        return "Group{" +
                "id=" + id +
                ", name=‘" + name + ‘‘‘ +
                ‘}‘;
    }
}

=================================Employee.java()(Employee实现类)==========================================

package com.ssh.model;

import org.hibernate.annotations.GenericGenerator;

import javax.persistence.*;

@Entity
@Table(name = "t_emp")
public class Employee {
    private int id;
    private String name;
    private String salary;

    public Employee(){}

    public Employee(int id, String name, String salary) {
        this.id = id;
        this.name = name;
        this.salary = salary;
    }

    @Id
    @GenericGenerator(name = "increment", strategy = "increment")
    @GeneratedValue(generator = "increment")
    public int getId() {
        return id;
    }

    public void setId(int id) {
        this.id = id;
    }

    @Column(name = "name")
    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

    @Column(name = "salary")
    public String getSalary() {
        return salary;
    }

    public void setSalary(String salary) {
        this.salary = salary;
    }

    @Override
    public String toString() {
        return "Employee{" +
                "id=" + id +
                ", name=‘" + name + ‘‘‘ +
                ", salary=‘" + salary + ‘‘‘ +
                ‘}‘;
    }
}

==================================add.jsp(路径为:/web/group/add.jsp)==========================================

<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head>
    <title>add</title>
</head>
<body>
<form method="post" action="group_add">
    组名：<input type="text" name="group.name">
    <input type="submit" value="保存">
</form>
</body>
</html>