Java如何实现网上图书馆管理系统

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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。

用户登陆模块代码:

用户登陆模块: @Controllerpublic class LoginController {     private LoginService loginService;      @Autowired    public void setLoginService(LoginService loginService) {        this.loginService = loginService;    }      @RequestMapping(value = {"/", "/login.html"})    public String toLogin(HttpServletRequest request) {        request.getSession().invalidate();        return "index";    }     @RequestMapping("/logout.html")    public String logout(HttpServletRequest request) {        request.getSession().invalidate();        return "redirect:/login.html";    }      //负责处理loginCheck.html请求    //请求参数会根据参数名称默认契约自动绑定到相应方法的入参中    @RequestMapping(value = "/api/loginCheck", method = RequestMethod.POST)    public @ResponseBody    Object loginCheck(HttpServletRequest request) {        long id = Long.parseLong(request.getParameter("id"));        String passwd = request.getParameter("passwd");        boolean isReader = loginService.hasMatchReader(id, passwd);        boolean isAdmin = loginService.hasMatchAdmin(id, passwd);        HashMap res = new HashMap<>();        if (isAdmin) {            Admin admin = new Admin();            admin.setAdminId(id);            admin.setPassword(passwd);            String username = loginService.getAdminUsername(id);            admin.setUsername(username);            request.getSession().setAttribute("admin", admin);            res.put("stateCode", "1");            res.put("msg", "管理员登陆成功！");        } else if (isReader) {            ReaderCard readerCard = loginService.findReaderCardByReaderId(id);            request.getSession().setAttribute("readercard", readerCard);            res.put("stateCode", "2");            res.put("msg", "读者登陆成功！");        } else {            res.put("stateCode", "0");            res.put("msg", "账号或密码错误！");        }        return res;    }     @RequestMapping("/admin_main.html")    public ModelAndView toAdminMain(HttpServletResponse response) {        return new ModelAndView("admin_main");    }     @RequestMapping("/reader_main.html")    public ModelAndView toReaderMain(HttpServletResponse response) {        return new ModelAndView("reader_main");    }     @RequestMapping("/admin_repasswd.html")    public ModelAndView reAdminPasswd() {        return new ModelAndView("admin_repasswd");    }     @RequestMapping("/admin_repasswd_do")    public String reAdminPasswdDo(HttpServletRequest request, String oldPasswd, String newPasswd, String reNewPasswd, RedirectAttributes redirectAttributes) {        Admin admin = (Admin) request.getSession().getAttribute("admin");        long id = admin.getAdminId();        String password = loginService.getAdminPassword(id);        if (password.equals(oldPasswd)) {            if (loginService.adminRePassword(id, newPasswd)) {                redirectAttributes.addFlashAttribute("succ", "密码修改成功！");                return "redirect:/admin_repasswd.html";            } else {                redirectAttributes.addFlashAttribute("error", "密码修改失败！");                return "redirect:/admin_repasswd.html";            }        } else {            redirectAttributes.addFlashAttribute("error", "旧密码错误！");            return "redirect:/admin_repasswd.html";        }    }     @RequestMapping("/reader_repasswd.html")    public ModelAndView reReaderPasswd() {        return new ModelAndView("reader_repasswd");    }     @RequestMapping("/reader_repasswd_do")    public String reReaderPasswdDo(HttpServletRequest request, String oldPasswd, String newPasswd, String reNewPasswd, RedirectAttributes redirectAttributes) {        ReaderCard reader = (ReaderCard) request.getSession().getAttribute("readercard");        long id = reader.getReaderId();        String password = loginService.getReaderPassword(id);        if (password.equals(oldPasswd)) {            if (loginService.readerRePassword(id, newPasswd)) {                redirectAttributes.addFlashAttribute("succ", "密码修改成功！");                return "redirect:/reader_repasswd.html";            } else {                redirectAttributes.addFlashAttribute("error", "密码修改失败！");                return "redirect:/reader_repasswd.html";            }        } else {            redirectAttributes.addFlashAttribute("error", "旧密码错误！");            return "redirect:/reader_repasswd.html";        }    }     //配置404页面    @RequestMapping("*")    public String notFind() {        return "404";    } }

静态资源和拦截器配置代码:

静态资源和拦截器配置: @Configuration@EnableWebMvc@ComponentScan("com.library.controller")public class WebConfig extends WebMvcConfigurerAdapter {     @Bean    public ViewResolver viewResolver() {        InternalResourceViewResolver resolver = new InternalResourceViewResolver();        resolver.setSuffix(".jsp");        return resolver;    }     @Override    public void configureDefaultServletHandling(DefaultServletHandlerConfigurer configurer) {        configurer.enable();    }     @Override    public void addResourceHandlers(ResourceHandlerRegistry registry) {        registry.addResourceHandler("/img/**")                .addResourceLocations("/static/img/");        registry.addResourceHandler("/js/**").addResourceLocations("/static/js/");        registry.addResourceHandler("/css/**").addResourceLocations("/static/css/");    }}

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