Struts2+Hibernate实现图书管理系统

效果图

部分代码

Books.java

package entity;

import java.util.Date;

public class Books {
    //书籍编号
    private String sid;
    //书名
    private String sname;
    //借书日期
    private Date loandate;
    //书籍剩余数量
    private String total;

    public Books() {

    }

    public Books(String sid, String sname, Date loandate, String total) {
        //super();
        this.sid = sid;
        this.sname = sname;
        this.loandate = loandate;
        this.total = total;
    }

    public String getSid() {
        return sid;
    }

    public void setSid(String sid) {
        this.sid = sid;
    }

    public String getSname() {
        return sname;
    }

    public void setSname(String sname) {
        this.sname = sname;
    }

    public Date getLoandate() {
        return loandate;
    }

    public void setLoandate(Date loandate) {
        this.loandate = loandate;
    }

    public String getTotal() {
        return total;
    }

    public void setTotal(String total) {
        this.total = total;
    }

    @Override
    public String toString() {
        return "Books [sid=" + sid + ", sname=" + sname + ", loandate="
                + loandate + ", total=" + total + "]";
    }

}

Books.hbm.xml

<?xml version="1.0"?>
<!DOCTYPE hibernate-mapping PUBLIC
    "-//Hibernate/Hibernate Mapping DTD 3.0//EN"
    "http://www.hibernate.org/dtd/hibernate-mapping-3.0.dtd">
<hibernate-mapping>
    <class name="entity.Books" table="BOOKS">
        <!-- 主键 -->
        <id name="sid" type="java.lang.String" length="8">
            <!-- 主键生成方式：自动生成 -->
            <generator class="assigned"></generator>
        </id>
        <property name="sname" type="java.lang.String"></property>
        <property name="loandate" type="date"></property>
        <property name="total" type="java.lang.String"></property>
    </class>
</hibernate-mapping>

BooksAction.java

package action;

import java.text.SimpleDateFormat;
import java.util.List;

import service.BooksDAO;
import service.impl.BooksDAOImpl;
import entity.Books;

public class BooksAction extends SuperAction {
    private static final long serialVersionUID = 1L;

    // 查询所有书籍
    public String query() {
        BooksDAO sdao = new BooksDAOImpl();
        List<Books> list = sdao.queryAllBooks();
        // 放进session中
        if (list != null && list.size() > 0) {
            session.setAttribute("books_list", list);// !!!!
        }
        return "query_success";
    }

    // 删除书籍
    public String delete() {
        BooksDAO sdao = new BooksDAOImpl();
        String sid = request.getParameter("sid");
        sdao.deleteBook(sid);// 调用删除方法
        return "delete_success";
    }

    // 添加书籍
    public String add() throws Exception {
        Books s = new Books();
        // 获得学生姓名
        s.setSname(request.getParameter("sname"));
        SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd");
        // 判断管理员输入的日期是否为空
        // 不为空则继续后面的工作，为空则跳转到添加书籍失败界面
        if (request.getParameter("loandate") != "") {
            s.setLoandate(sdf.parse(request.getParameter("loandate")));
            s.setTotal(request.getParameter("total"));
            BooksDAO sdao = new BooksDAOImpl();
            sdao.addBooks(s);
            return "add_success";
        } else {
            return "add_failure";
        }

    }

    // 修改书籍
    public String modify() {
        // 获取学生编号
        String sid = request.getParameter("sid");
        BooksDAO sdao = new BooksDAOImpl();
        Books s = sdao.queryBooksBySid(sid);
        // 保存在会话中
        session.setAttribute("modify_books", s);// !!!!!
        return "modify_success";
    }

    // 保存修改后的书籍资料动作
    public String save() throws Exception {
        Books s = new Books();
        s.setSid(request.getParameter("sid"));
        s.setSname(request.getParameter("sname"));

        SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd");
        // 判断管理员输入的日期是否为空
        // 不为空则继续后面的工作，为空则跳转到添加书籍失败界面
        if (request.getParameter("loandate") != "") {
            s.setLoandate(sdf.parse(request.getParameter("loandate")));
            s.setTotal(request.getParameter("total"));// !!!
            BooksDAO sdao = new BooksDAOImpl();
            sdao.updateBook(s);
            return "save_success";
        } else {
            return "modify";
        }

    }
}
BooksDAO.java
```java
package service;

import java.util.List;

import entity.Books;

/**
 * @ClassName: BooksDAO.java
 * @Description: 书籍业务逻辑接口
 * @version: "1.8.0_131"
 * @author: 寇爽
 * @date: 2017年11月14日 下午8:19:19
 */
public interface BooksDAO {
    //查询所有书籍资料
    public List<Books> queryAllBooks();

    // 根据书籍编号查询书籍资料
    public Books queryBooksBySid(String sid);

    // 添加书籍资料
    public boolean addBooks(Books s);

    // 修改书籍资料
    public boolean updateBook(Books s);

    //删除书籍资料
    public boolean deleteBook(String sid);

}

<div class="se-preview-section-delimiter"></div>

BooksDAOImpl.java

package service.impl;

import java.util.List;
import org.hibernate.Query;
import org.hibernate.Session;
import org.hibernate.Transaction;
import db.MyHibernateSessionFactory;
import entity.Books;
import service.BooksDAO;

/**
 * @ClassName: BooksDAOImpl.java
 * @Description: 书籍业务逻辑接口实现类
 * @version: "1.8.0_131"
 * @author: 寇爽
 * @date: 2017年11月14日 下午8:34:05
 */
public class BooksDAOImpl implements BooksDAO {
    /**
     * 查询所有书籍资料
     */
    @SuppressWarnings("unchecked")
    @Override
    public List<Books> queryAllBooks() {
        Transaction tx = null;
        List<Books> list = null;
        String hql = "";
        try {
            Session session = MyHibernateSessionFactory.getSessionFactory()
                    .getCurrentSession();
            tx = session.beginTransaction();
            hql = "from Books";
            Query query = session.createQuery(hql);
            list = query.list();
            tx.commit();
            return list;
        } catch (Exception ex) {
            ex.printStackTrace();
            tx.commit();
            return list;
        } finally {
            if (tx != null) {
                tx = null;
            }
        }
    }

    /**
     * 根据书籍编号查询书籍资料
     */
    @Override
    public Books queryBooksBySid(String sid) {
        Transaction tx = null;
        Books s = null;
        try {
            Session session = MyHibernateSessionFactory.getSessionFactory()
                    .getCurrentSession();
            tx = session.beginTransaction();
            s = (Books) session.get(Books.class, sid);
            tx.commit();
            return s;
        } catch (Exception ex) {
            ex.printStackTrace();
            tx.commit();
            return s;
        } finally {
            if (tx != null) {
                tx = null;
            }
        }
    }

    /**
     * 添加书籍资料
     */
    @Override
    public boolean addBooks(Books s) {
        // 设置学生学号为getNewSid()生成的学号
        s.setSid(getNewSid());
        Transaction tx = null;
        try {
            Session session = MyHibernateSessionFactory.getSessionFactory()
                    .getCurrentSession();
            tx = session.beginTransaction();
            session.save(s);
            tx.commit();
            return true;
        } catch (Exception ex) {
            ex.printStackTrace();
            tx.commit();
            return false;
        } finally {
            if (tx != null) {
                tx = null;
            }
        }
    }

    /**
     * 修改书籍资料
     */
    @Override
    public boolean updateBook(Books s) {
        // TODO Auto-generated method stub
        Transaction tx = null;
        try {
            Session session = MyHibernateSessionFactory.getSessionFactory()
                    .getCurrentSession();
            tx = session.beginTransaction();
            session.update(s);
            tx.commit();

            return true;
        } catch (Exception ex) {
            ex.printStackTrace();
            tx.commit();
            return false;
        } finally {
            if (tx != null) {
                tx = null;
            }
        }
    }

    /**
     * 删除书籍资料
     */
    @Override
    public boolean deleteBook(String sid) {
        // TODO Auto-generated method stub
        Transaction tx = null;
        String hql = "";
        try {
            Session session = MyHibernateSessionFactory.getSessionFactory()
                    .getCurrentSession();
            tx = session.beginTransaction();
            Books s = (Books) session.get(Books.class, sid);
            session.delete(s);
            tx.commit();
            return true;
        } catch (Exception ex) {
            ex.printStackTrace();
            tx.commit();
            return false;
        } finally {
            if (tx != null) {
                tx = null;
            }
        }
    }

    /**
     * 生成书籍编号的方法
     *
     * @return 书籍号
     */
    private String getNewSid() {
        Transaction tx = null;
        String hql = "";
        String sid = null;
        try {
            Session session = MyHibernateSessionFactory.getSessionFactory()
                    .getCurrentSession();
            tx = session.beginTransaction();
            // 获得当前学生的最大编号
            hql = "select max(sid) from Books";
            Query query = session.createQuery(hql);
            sid = (String) query.uniqueResult();
            if (sid == null || "".equals(sid)) {
                // 给一个默认的最大编号
                sid = "B0000001";
            } else {
                // 取后7位
                String temp = sid.substring(1);
                // 转成数字
                int i = Integer.parseInt(temp);
                i++;
                // 还原成字符串
                temp = String.valueOf(i);
                int len = temp.length();
                // 凑够7位
                for (int j = 0; j < 7 - len; j++) {
                    temp = "0" + temp;
                }
                sid = "B" + temp;
            }
            tx.commit();
            return sid;
        } catch (Exception ex) {
            ex.printStackTrace();
            tx.commit();
            return null;
        } finally {
            if (tx != null) {
                tx = null;
            }
        }
    }

}

<div class="se-preview-section-delimiter"></div>

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>

    <package name="default" namespace="/" extends="struts-default">

    </package>
    <package name="users" namespace="/users" extends="default">
        <action name="*_*" class="action.{1}Action" method="{2}">
            <result name="login_success">/users/Users_login_success.jsp</result>
            <result name="login_failure">/users/Users_login.jsp</result>
            <result name="logout_success">/users/Users_login.jsp</result>
            <result name="input">/users/Users_login.jsp</result>
        </action>
    </package>
    <package name="students" namespace="/students" extends="default">
          <action name="*_*" class="action.{1}Action" method="{2}">
            <result name="query_success">/students/Students_query_success.jsp</result>
            <result name="modify_success">/students/Students_modify.jsp</result>
            <result name="modify">/students/Students_modify.jsp</result>
            <result name="add_success">/students/Students_add_success.jsp</result>
            <result name="add_failure">/students/Students_add_failure.jsp</result>
            <result name="save_success">/students/Students_modify_success.jsp</result>
            <result name="delete_success" type="chain">Students_query</result>
          </action>
    </package>
    <package name="books" namespace="/books" extends="default">
          <action name="*_*" class="action.{1}Action" method="{2}">
            <result name="query_success">/books/Books_query_success.jsp</result>
            <result name="modify_success">/books/Books_modify.jsp</result>
            <result name="modify">/books/Books_modify.jsp</result>
            <result name="add_success">/books/Books_add_success.jsp</result>
            <result name="add_failure">/books/Books_add_failure.jsp</result>
            <result name="save_success">/books/Books_modify_success.jsp</result>
            <result name="delete_success" type="chain">Books_query</result> 

          </action>
    </package>
</struts>

项目源码：

https://github.com/Snailclimb/JavaWebProject/tree/master/immoc_sh （推荐star不要fork，还在继续改动中），后续还会上传SSH,SSM的项目。