Java项目:网上图书馆管理系统(java+jsp+servlert+mysql+ajax)
源码获取：博客首页 "资源" 里下载！
一、项目简述
功能： 区分为管理员用户和普通用户，普通用户：用户登录，个 人信息修改，图书查询，用户借阅，用户归还，管理员用 户：图书馆里，归还管理，借阅信息查询，图书维护，分 类管理，读者管理等等功能。
二、项目运行
环境配置： Jdk1.8 + Tomcat8.5 + mysql + Eclispe (IntelliJ IDEA,Eclispe,MyEclispe,Sts 都支持)
项目技术： JSP + Servlert + html+ css + JavaScript + JQuery + Ajax等等。
读者信息控制层：
/**
* Servlet implementation class updateUserServlet
*/
@WebServlet("/updateUserServlet")
public class updateUserServlet extends HttpServlet {
private static final long serialVersionUID = 1L;
/**
* @see HttpServlet#HttpServlet()
*/
public updateUserServlet() {
super();
// TODO Auto-generated constructor stub
}
/**
* @see HttpServlet#doGet(HttpServletRequest request, HttpServletResponse response)
*/
protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
// TODO Auto-generated method stub
// response.getWriter().append("Served at: ").append(request.getContextPath());
}
/**
* @see HttpServlet#doPost(HttpServletRequest request, HttpServletResponse response)
*/
protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
// TODO Auto-generated method stub
// doGet(request, response);
//修改读者的信息
request.setCharacterEncoding("UTF-8");
response.setContentType("text/html;charset=UTF-8");
String username = request.getParameter("username");
String password = request.getParameter("password");
String name = request.getParameter("name");
String email = request.getParameter("email");
String phone = request.getParameter("phone");
int lend_num = Integer.parseInt(request.getParameter("lend_num"));
int max_num = Integer.parseInt(request.getParameter("max_num"));
int aid = Integer.parseInt(request.getParameter("aid"));
AdminDao userdao = new AdminDao();
userdao.updateUser(aid,username,password,name,email,phone,lend_num,max_num);
response.sendRedirect("/books/admin_user.jsp");
}
}
图书信息控制层：
/**
* Servlet implementation class updateBookServlet
*/
@WebServlet("/updateBookServlet")
public class updateBookServlet extends HttpServlet {
private static final long serialVersionUID = 1L;
/**
* @see HttpServlet#HttpServlet()
*/
public updateBookServlet() {
super();
// TODO Auto-generated constructor stub
}
/**
* @see HttpServlet#doGet(HttpServletRequest request, HttpServletResponse response)
*/
protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
// TODO Auto-generated method stub
// response.getWriter().append("Served at: ").append(request.getContextPath());
}
/**
* @see HttpServlet#doPost(HttpServletRequest request, HttpServletResponse response)
*/
protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
// TODO Auto-generated method stub
// doGet(request, response);
//修改图书信息
request.setCharacterEncoding("UTF-8");
response.setContentType("text/html;charset=UTF-8");
String card = request.getParameter("card");
String name = request.getParameter("name");
String type = request.getParameter("type");
String autho = request.getParameter("autho");
String press = request.getParameter("press");
int num = Integer.parseInt(request.getParameter("num"));
int bid = Integer.parseInt(request.getParameter("updatebid"));
BookDao bookdao = new BookDao();
bookdao.updateBook(bid,card,name,type,autho,press,num);
response.sendRedirect("/books/admin_book.jsp");
}
}
登录信息控制层：
/**
* Servlet implementation class LoginServlet
*/
@WebServlet("/LoginServlet")
public class LoginServlet extends HttpServlet {
private static final long serialVersionUID = 1L;
/**
* @see HttpServlet#HttpServlet()
*/
public LoginServlet() {
super();
// TODO Auto-generated constructor stub
}
/**
* @see HttpServlet#doGet(HttpServletRequest request, HttpServletResponse response)
*/
protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
// TODO Auto-generated method stub
// response.getWriter().append("Served at: ").append(request.getContextPath());
}
/**
* @see HttpServlet#doPost(HttpServletRequest request, HttpServletResponse response)
*/
protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
// TODO Auto-generated method stub
// doGet(request, response);
//登录的判断
PrintWriter out = response.getWriter();
request.setCharacterEncoding("UTF-8");
response.setContentType("text/html;charset=UTF-8");
//获取账号和密码
String username = request.getParameter("username");
String password = request.getParameter("password");
AdminDao userdao = new AdminDao();
//对账号和密码进行判断
boolean result = userdao.Login_verify(username, password);
HttpSession session = request.getSession();
//判断输入正确
if(result){
AdminBean adminbean = new AdminBean();
AdminDao admindao = new AdminDao();
//更加账号和密码查找出读者的信息
adminbean = admindao.getAdminInfo(username,password);
//将aid存入session中
session.setAttribute("aid", ""+adminbean.getAid());
//设置session的失效时间
session.setMaxInactiveInterval(6000);
//根据status的值来判断是管理员，还是读者，status=1为读者
if(adminbean.getStatus()==1){
response.sendRedirect("/books/index2.jsp");
}else{
response.sendRedirect("/books/admin.jsp");
}
}else{
//没有找到对应的账号和密码，返回重新登录
session.setAttribute("state", "密码错误");
response.sendRedirect("/books/login.jsp");
}
}
}
管理员信息控制层：
/**
* Servlet implementation class AdminServlet
*/
@WebServlet("/AdminServlet")
public class AdminServlet extends HttpServlet {
private static final long serialVersionUID = 1L;
/**
* @see HttpServlet#HttpServlet()
*/
public AdminServlet() {
super();
// TODO Auto-generated constructor stub
}
/**
* @see HttpServlet#doGet(HttpServletRequest request, HttpServletResponse response)
*/
protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
// TODO Auto-generated method stub
// response.getWriter().append("Served at: ").append(request.getContextPath());
}
/**
* @see HttpServlet#doPost(HttpServletRequest request, HttpServletResponse response)
*/
protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
// TODO Auto-generated method stub
// doGet(request, response);
PrintWriter out = response.getWriter();
//设置编码类型
request.setCharacterEncoding("UTF-8");
response.setContentType("text/html;charset=UTF-8");
BookDao bookdao = new BookDao();
//这里为了简单，设置了tip，用来区分是修改密码功能，还是修改个人资料的功能，tip=1为修改密码
int tip = Integer.parseInt(request.getParameter("tip"));
//获取发起请求页面的文件名称，这个在对应的jsp里面的表单填写，修改完成后就可以直接返回对应的页面
String url = request.getParameter("url");
HttpSession session = request.getSession();
AdminBean adminbean = new AdminBean();
//获取存到session的aid
String aid = (String) session.getAttribute("aid");
AdminDao admindao = new AdminDao();
//通过aid获取到读者的信息
adminbean = admindao.get_AidInfo2(aid);
//修改密码
if(tip==1){
//获取到输入的旧密码，新密码
String password = request.getParameter("password");
String password2 = request.getParameter("password2");
//获取读者数据表中的密码
String old_password = adminbean.getPassword();
//对旧密码进行比较，如果相同就修改，不相同就直接退出
if(old_password.equals(password)){
admindao.updateUser(adminbean.getAid(), adminbean.getUsername(), password2, adminbean.getName(),
adminbean.getEmail(), adminbean.getPhone(), adminbean.getLend_num(), adminbean.getMax_num());
response.sendRedirect("/books/"+url+".jsp");
}else{
out.write("");
}
}else{
//修改个人资料
//获取输入的信息
String name = request.getParameter("name");
String email = request.getParameter("email");
String phone = request.getParameter("phone");
//修改输入的信息到数据表中
admindao.updateUser(adminbean.getAid(), adminbean.getUsername(), adminbean.getPassword(), name,
email, phone, adminbean.getLend_num(), adminbean.getMax_num());
response.sendRedirect("/books/"+url+".jsp");
}
}
}
源码获取：博客首页 "资源" 里下载！