用struts和hibernate结合MVC层实例

时间：2021-12-12 23:25:32

1、倒包hibernate11个包+sturts2 13个包

2、创建web.xml

<?xml version="1.0" encoding="UTF-8"?>

<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://java.sun.com/xml/ns/javaee" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" id="WebApp_ID" version="2.5">

  <display-name>Test27</display-name>

  <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>

  <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>

3、创建struts

<?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>

    <!-- 设置过滤的扩展名 -->

    <constant name="struts.action.extension" value="do,action,,"></constant>

    <!-- 定义包 -->

    <package name="index" extends="struts-default">

    <action name="addUser">

    <result>/WEB-INF/pages/addUser.jsp</result>

    </action>

    <!-- 保存User -->

    <action name="saveUser" class="com.hanqi.action.UserAction" method="saveUser">

    <result name="fail">/WEB-INF/pages/fail.jsp</result>

    <result >/WEB-INF/pages/success.jsp</result>

    </action>

    <!-- 查询用户 -->

    <action name="selectUser" class="com.hanqi.action.UserAction" method="selectUser">

    <result name="fail">/WEB-INF/pages/fail.jsp</result>

    <result >/WEB-INF/pages/selectUser.jsp</result>

    </action>

    <!-- 删除用户 -->

    <action name="deleteUser" class="com.hanqi.action.UserAction" method="deleteUser">

    <result name="fail">/WEB-INF/pages/fail.jsp</result>

    <result type="redirectAction">selectUser</result>

    </action>

    <!-- 修改用户 -->

    <action name="EditUser">

    <result>/WEB-INF/pages/EditUser.jsp</result>

    </action>

    <action name="updateUser" class="com.hanqi.action.UserAction" method="updateUser">

    <result name="fail">/WEB-INF/pages/fail.jsp</result>

    <result type="redirectAction">selectUser</result>

    </action>

    </package>

</struts>

4、创建cfg.xml文件链接数据库

<?xml version="1.0" encoding="UTF-8"?>

<!DOCTYPE hibernate-configuration PUBLIC

        "-//Hibernate/Hibernate Configuration DTD 3.0//EN"

        "http://hibernate.sourceforge.net/hibernate-configuration-3.0.dtd">

<hibernate-configuration>

    <session-factory>

        <property name="hibernate.connection.driver_class">oracle.jdbc.driver.OracleDriver</property>

        <property name="hibernate.connection.password"></property>

        <property name="hibernate.connection.url">jdbc:oracle:thin:@localhost::orcl</property>

        <property name="hibernate.connection.username">test0816</property>

        <property name="hibernate.default_schema">TEST0816</property>

        <property name="hibernate.dialect">org.hibernate.dialect.Oracle10gDialect</property>

         <property name="hibernate.show_sql">true</property>

  <property name="hibernate.format_sql">true</property>

  <!-- 自动建表方式 -->

  <property name="hibernate.hbm2ddl.auto">update</property>

  <!-- 映射文件 -->

  <mapping resource="com/hanqi/entity/T_User.hbm.xml"/>

    </session-factory>

</hibernate-configuration>

5、创建登陆界面

<%@ 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>Insert title here</title>

</head>

<body>

<a href="addUser">添加用户</a>

<br><br>

<a href="selectUser">查询用户列表</a>

</body>

</html>

6、按照MVC思想创建包和类

用struts和hibernate结合MVC层实例

用struts和hibernate结合MVC层实例

6.1创建实体类和对应的映射文件（可用反向工程）

package com.hanqi.entity;

//持久化类

//不要使用final修饰

import java.util.Date;

public class T_User {

    private Integer user_ID;

    private String name;

    private Date birthday;

    private double money;

    private String password;

    public String getPassword() {

        return password;

    }

    public void setPassword(String password) {

        this.password = password;

    }

    public Integer getuser_ID() {

        return user_ID;

    }

    public void setuser_ID(Integer user_ID) {

        this.user_ID = user_ID;

    }

    public String getName() {

        return name;

    }

    public void setName(String name) {

        this.name = name;

    }

    public Date getBirthday() {

        return birthday;

    }

    public void setBirthday(Date birthday) {

        this.birthday = birthday;

    }

    public double getMoney() {

        return money;

    }

    public void setMoney(double money) {

        this.money = money;

    }

    public T_User(Integer user_ID, String name, Date birthday, double money) {

        super();

        this.user_ID = user_ID;

        this.name = name;

        this.birthday = birthday;

        this.money = money;

    }

    public T_User(Integer user_ID, String name) {

        super();

        this.user_ID = user_ID;

        this.name = name;

    }

    //必须提供无参的构造方法

    //需要用到反射

    public T_User() {

        super();

    }

    @Override

    public String toString() {

        return "User [user_ID=" + user_ID + ", name=" + name + ", birthday=" + birthday + ", money=" + money

                + ", password=" + password + "]";

    }

}

对应的映射文件：

<?xml version="1.0"?>

<!DOCTYPE hibernate-mapping PUBLIC "-//Hibernate/Hibernate Mapping DTD 3.0//EN"

"http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd">

<!-- Generated -- :: by Hibernate Tools 3.4..CR1 -->

<hibernate-mapping>

    <class name="com.hanqi.entity.T_User" table="T_USER">

        <id name="user_ID" type="java.lang.Integer">

            <column name="USER_ID" />

            <generator class="native" />

        </id>

        <property name="name" type="java.lang.String">

            <column name="NAME" />

        </property>

        <property name="birthday" type="java.util.Date">

            <column name="BIRTHDAY" />

        </property>

        <property name="money" type="double">

            <column name="MONEY" />

        </property>

        <property name="password" type="java.lang.String">

            <column name="PASSWORD" />

        </property>

    </class>

</hibernate-mapping>

6.2创建action类

package com.hanqi.action;

import java.util.Date;

import java.util.List;

import java.util.Map;

import javax.servlet.http.HttpServletRequest;

import org.apache.struts2.ServletActionContext;

import com.hanqi.entity.T_User;

import com.hanqi.service.UserService;

import com.opensymphony.xwork2.ActionContext;

public class UserAction {

    //域模型方式

    private T_User user;

    private int userid;

    private String name;

    private String password;

    private Date birthday;

    private double money;

    public int getUserid() {

        return userid;

    }

    public void setUserid(int userid) {

        this.userid = userid;

    }

    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 Date getBirthday() {

        return birthday;

    }

    public void setBirthday(Date birthday) {

        this.birthday = birthday;

    }

    public double getMoney() {

        return money;

    }

    public void setMoney(double money) {

        this.money = money;

    }

    public T_User getUser() {

        return user;

    }

    public void setUser(T_User user) {

        this.user = user;

    }

    //处理保存User的方法

    public String saveUser()

    {

        String rtn="fail";

        try{

        //调用Service层（模型层，业务逻辑层）

            T_User u1=new UserService().add(user);

            //使用request转发到下一个页面上去

            ActionContext ac=ActionContext.getContext();

            Map<String, Object>mo=(Map<String, Object>)ac.get("request");

            mo.put("user", u1);

            rtn="success";

        }

        catch(Exception e)

        {

            e.printStackTrace();

        }

        return rtn;

    }

    //查询

    public String selectUser()

    {

        String rtn="fail";

        try{

            //调用查询的方法

            List<T_User> lu=new UserService().getAll();

            //得到原生的request

            HttpServletRequest hsr=ServletActionContext.getRequest();

            hsr.setAttribute("userlist", lu);

            rtn="success";

        }

        catch(Exception e)

        {

            e.printStackTrace();

        }

        return rtn;

    }

    //删除

    public String deleteUser()

    {

        String rtn="fail";

        try{

            //获取userID

            //得到原生的request

            HttpServletRequest hsr=ServletActionContext.getRequest();

            String uid=hsr.getParameter("userID");

            //执行删除

            new UserService().delete(Integer.parseInt(uid));

            rtn="success";

        }

        catch(Exception e)

        {

            e.printStackTrace();

        }

        return rtn;

    }

    //执行修改

    public String updateUser()

    {

        String rtn="fail";

        try{

            T_User user=new T_User();

            user.setuser_ID(userid);

            user.setPassword(password);

            user.setName(name);

            user.setBirthday(birthday);

            user.setMoney(money);

            new UserService().update(user);

            rtn="success";

        }

        catch(Exception e)

        {

            e.printStackTrace();

        }

        return rtn;

    }

}

6.3 创建service层

package com.hanqi.service;

import java.util.List;

import com.hanqi.DAO.UserDAO;

import com.hanqi.entity.T_User;

public class UserService {

    //添加user的方法

    public T_User add(T_User user)

    {

        return new UserDAO().insert(user);

    }

    //全表查询

    public List<T_User> getAll()

    {

        return new UserDAO().getAll();

    }

    //删除

    public void delete(int userID)

    {

        new UserDAO().delete(userID);

    }

    //单条查询

    public T_User getUser(int userID)

    {

        return new UserDAO().getUser(userID);

    }

    //执行修改

    public void update(T_User user)

    {

        new UserDAO().updateUser(user);

    }

}

6.4 创建DAO层

package com.hanqi.DAO;

import java.util.ArrayList;

import java.util.List;

import org.hibernate.Session;

import org.hibernate.SessionFactory;

import org.hibernate.Transaction;

import org.hibernate.boot.registry.StandardServiceRegistryBuilder;

import org.hibernate.cfg.Configuration;

import org.hibernate.service.ServiceRegistry;

import com.hanqi.entity.T_User;

public class UserDAO {

    private Configuration cfg=null;

    private ServiceRegistry sr=null;

    private SessionFactory sf=null;

    private Session se=null;

    private Transaction ts=null;

    public UserDAO()

    {

        cfg=new Configuration().configure();

         sr=new StandardServiceRegistryBuilder()

                .applySettings(cfg.getProperties()).build();

    }

    private void init()

    {

        sf=cfg.buildSessionFactory(sr);

        se=sf.openSession();

        ts=se.beginTransaction();

    }

    private void destory()

    {

        ts.commit();

        se.close();

        sf.close();

    }

    //保存 user

    public T_User insert(T_User user)

    {

        init();

        se.save(user);

        destory();

        return user;

    }

    //查询列表

    public List<T_User> getAll()

    {

        init();

        List<T_User> rtn=new ArrayList<>();

        rtn=se.createQuery("from T_User").list();

        destory();

        return rtn;

    }

    //删除

    public void delete(int userID)

    {

        init();

        //获取对象

        T_User u=(T_User)se.get(T_User.class, userID);

        se.delete(u);

        destory();

    }

    //单条查询

    public T_User getUser(int userID)

    {

        init();

        T_User rtn=null;

        rtn=(T_User)se.get(T_User.class, userID);

        destory();

        return rtn;

    }

    //修改单条查询内容

    public T_User updateUser(T_User user)

    {

        init();

        T_User rtn=null;

        rtn=(T_User)se.get(T_User.class, user.getuser_ID());

        rtn.setuser_ID(user.getuser_ID());

        rtn.setName(user.getName());

        rtn.setPassword(user.getPassword());

        rtn.setBirthday(user.getBirthday());

        rtn.setMoney(user.getMoney());

        destory();

        return rtn;

    }

}

7、跳转页面

7.1添加用户页面

<%@ 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>Insert title here</title>

</head>

<body>

添加用户

<br><br>

<form action="saveUser" method="post">

用户名：<input type="text" name="user.name"/>

<br>

密码：<input type="password" name="user.password"/>

<br>

生日：<input type="text" name="user.birthday"/>

<br>

薪酬：<input type="text" name="user.money"/>

<br>

<input type="submit" value="保存"/>

</form>

</body>

</html>

7.2查询页面

<%@page import="com.hanqi.entity.T_User"%>

<%@page import="java.util.List"%>

<%@ 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>Insert title here</title>

</head>

<body>

<%

List<T_User> lu=(List<T_User>)request.getAttribute("userlist");

for(T_User u:lu)

{

    out.print(u + "【<a href='EditUser?userID="+u.getuser_ID()+"'>修改</a>】【<a href='deleteUser?userID="+u.getuser_ID()+"'>删除</a>】 <br>");

}

%>

</body>

</html>

7.3 修改用户界面

<%@page import="com.hanqi.entity.T_User"%>

<%@page import="com.hanqi.service.UserService"%>

<%@ 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>Insert title here</title>

</head>

<body>

<%

// 接收参数

String userID = request.getParameter("userID");

 T_User us=null;

if (userID == null ||

userID.trim().equals(""))

{

    response.getWriter().print("请正确访问");

}

else

{

     us=new UserService().getUser(Integer.parseInt(userID));

}

%>

编辑银行卡信息<br><br>

<form action="updateUser" method="post">

用户id号：<input type="text" name="userid" value="<%=us.getuser_ID() %>"readonly><br>

用户名：<input type="text" name="name" value="<%=us.getName() %>"/>

<br>

密码：<input type="password" name="password" value="<%=us.getPassword() %>"/>

<br>

生日：<input type="text" name="birthday" value="<%=us.getBirthday() %>"/>

<br>

薪酬：<input type="text" name="money" value="<%=us.getMoney() %>"/>

<br>

<input type="submit" value="提交"/>

</form>

</body>

</html>

7.4 操作失败的跳转页面

<%@ 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>Insert title here</title>

</head>

<body>

操作失败

</body>

</html>

7.5 保存成功的跳转页面

<%@ 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>Insert title here</title>

</head>

<body>

操作成功

User=${user }

</body>

</html>

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