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。