Java 实战项目锤炼之网上图书馆管理系统的实现流程

Java 实战项目锤炼之网上图书馆管理系统的实现流程

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:

@Controller

public 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 = loginSehttp://rvice.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";

http:// }

} else {

redirectAttributes.addFlashAttribuyznMlKste("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-配置代码:

静态资源和-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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