基于javaweb和mysql的ssm银行信息管理系统(JavaWeb JSP MySQL Servlet SSM SpringBoot Bootstrap Ajax)

私信源码获取及调试交流

私信源码获取及调试交流

运行环境

Java≥8、MySQL≥5.7、Tomcat≥8

开发工具

eclipse/idea/myeclipse/sts等均可配置运行

技术框架

JavaBean MVC JSP SSM(Spring SpringMVC MyBatis) MySQL CSS JavaScript Bootstrap Ajax

适用

课程设计，大作业，毕业设计，项目练习，学习演示等

功能说明

登录、注册、退出、用户模块、公告模块、员工模块、储户模块的增删改查管理

eclipse/MyEclipse运行：

idea运行：

        request.getSession().setAttribute("list", map.get("list"));

        Integer totalRecord = (Integer) map.get("totalCount");//根据查询条件取出对应的总记录数，用于分页
        String pageNum = request.getParameter("pageNum");//封装分页参数
        com.demo.util.PageBean<Object> pb = new com.demo.util.PageBean(Integer.valueOf(pageNum != null ? pageNum : "1"), totalRecord);
        params.put("startIndex", pb.getStartIndex());
        params.put("pageSize", pb.getPageSize());
        List list = (List) noticeService.list(params).get("list");//根据分页参数startIndex、pageSize查询出来的最终结果list
        pb.setServlet("noticeList");
        pb.setSearchColumn(searchColumn);
        pb.setKeyword(keyword);
        pb.setList(list);
        request.getSession().setAttribute("pageBean", pb);
        request.getSession().setAttribute("list", pb.getList());

        response.sendRedirect("notice_list.jsp");
    }
}

/**
 * 拦截器
 */
public class LoginInterceptor implements HandlerInterceptor {

    //@Override
    public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object o) throws Exception {
        HttpSession session = request.getSession();
        //移除错误提示
        session.removeAttribute("alert_msg");
        //登录拦截
        String uri = request.getRequestURI().substring(request.getRequestURI().lastIndexOf("/"));
        String[] access = new String[]{"login", "logout", "register", ".css", ".js", ".png", ".jpg", "validationCode"};
        for (String action : access) {
            if (uri.toLowerCase().contains(action.toLowerCase())) {
                return true;
            }
        }
        if (session.getAttribute("loginUser") == null) {
            session.setAttribute("alert_msg", "错误：请先登录！");
            response.sendRedirect("login.jsp");

        Emp vo = empService.get(id);
        response.getWriter().println(com.alibaba.fastjson.JSONObject.toJSONString(vo));
    }

    /**
     * 根据条件查询员工的列表并跳转回页面
     *
     * @param response
     * @param request
     * @throws IOException
     */
    @RequestMapping("empList")
    public void list(HttpServletResponse response, HttpServletRequest request) throws IOException {
        this.redirectList(request, response);
    }

    /**
     * 跳转到列表页面
     *
     * @param request
     * @param response
     */
    private void redirectList(HttpServletRequest request, HttpServletResponse response) throws IOException {
        //查询列和关键字
        String searchColumn = request.getParameter("searchColumn");
        String keyword = request.getParameter("keyword");
        Map<String, Object> params = new HashMap();//用来保存控制层传进来的参数(查询条件)
        params.put("searchColumn", searchColumn);//要查询的列
        params.put("keyword", keyword/*keyword != null ? new String(keyword.getBytes("ISO-8859-1"), "UTF-8") : null*/);//查询的关键字
        //User loginUser = (User) request.getSession().getAttribute("loginUser");
        //if (!"管理员".equals(loginUser.getUserType())) {
        //    params.put("createBy", loginUser.getId());
        //}
        Map<String, Object> map = empService.list(params);
        request.getSession().setAttribute("list", map.get("list"));

        Integer totalRecord = (Integer) map.get("totalCount");//根据查询条件取出对应的总记录数，用于分页
        String pageNum = request.getParameter("pageNum");//封装分页参数
        com.demo.util.PageBean<Object> pb = new com.demo.util.PageBean(Integer.valueOf(pageNum != null ? pageNum : "1"), totalRecord);
        params.put("startIndex", pb.getStartIndex());
        params.put("pageSize", pb.getPageSize());
        List list = (List) empService.list(params).get("list");//根据分页参数startIndex、pageSize查询出来的最终结果list
        pb.setServlet("empList");
        pb.setSearchColumn(searchColumn);
        pb.setKeyword(keyword);
        pb.setList(list);
        request.getSession().setAttribute("pageBean", pb);
        request.getSession().setAttribute("list", pb.getList());

        response.sendRedirect("emp_list.jsp");
    }
}

    @Autowired
    private ChuhuService chuhuService;

    /**
     * 增加储户
     *
     * @param response
     * @param request
     * @throws IOException
     */
    @RequestMapping("chuhuAdd")
    public void add(Chuhu vo, HttpServletResponse response, HttpServletRequest request) throws IOException {
        vo.setCreateBy(((com.demo.vo.User) request.getSession().getAttribute("loginUser")).getId());
        //调用Service层的增加（insert）方法
        chuhuService.insert(vo);
        this.redirectList(request, response);
    }

    /**
     * 删除储户
     *
     * @param response
     * @param request
     * @throws IOException
     */
    @RequestMapping("chuhuDelete")
    public void delete(HttpServletResponse response, HttpServletRequest request) throws IOException {
        Serializable id = request.getParameter("id");
        chuhuService.delete(Arrays.asList(id));
        this.redirectList(request, response);
    }

    /**
     * 编辑储户
     *
     * @param response
     * @param request
     * @throws IOException
     */
    @RequestMapping("chuhuEdit")
    public void edit(Chuhu vo, HttpServletResponse response, HttpServletRequest request) throws IOException {
        chuhuService.update(vo);
        this.redirectList(request, response);
    }

    /**
     * 获取储户的详细信息（详情页面与编辑页面要显示该储户的详情）并跳转回页面
     *
     * @param response
     * @param request
     * @throws IOException

     * 根据条件查询用户的列表并跳转回页面
     *
     * @param response
     * @param request
     * @throws IOException
     */
    @RequestMapping("userList")
    public void list(HttpServletResponse response, HttpServletRequest request) throws IOException {
        this.redirectList(request, response);
    }

    /**
     * 跳转到列表页面
     *
     * @param request
     * @param response
     */
    private void redirectList(HttpServletRequest request, HttpServletResponse response) throws IOException {
        //查询列和关键字
        String searchColumn = request.getParameter("searchColumn");
        String keyword = request.getParameter("keyword");
        Map<String, Object> params = new HashMap();//用来保存控制层传进来的参数(查询条件)
        params.put("searchColumn", searchColumn);//要查询的列
        params.put("keyword", keyword/*keyword != null ? new String(keyword.getBytes("ISO-8859-1"), "UTF-8") : null*/);//查询的关键字
        User loginUser = (User) request.getSession().getAttribute("loginUser");
        if (!"管理员".equals(loginUser.getUserType())) {
            params.put("id", loginUser.getId());
        }
        Map<String, Object> map = userService.list(params);
        request.getSession().setAttribute("list", map.get("list"));

        Integer totalRecord = (Integer) map.get("totalCount");//根据查询条件取出对应的总记录数，用于分页
        String pageNum = request.getParameter("pageNum");//封装分页参数
        com.demo.util.PageBean<Object> pb = new com.demo.util.PageBean(Integer.valueOf(pageNum != null ? pageNum : "1"), totalRecord);
        params.put("startIndex", pb.getStartIndex());
        params.put("pageSize", pb.getPageSize());
        List list = (List) userService.list(params).get("list");//根据分页参数startIndex、pageSize查询出来的最终结果list
        pb.setServlet("userList");
        pb.setSearchColumn(searchColumn);
        pb.setKeyword(keyword);
        pb.setList(list);
        request.getSession().setAttribute("pageBean", pb);
        request.getSession().setAttribute("list", pb.getList());

        response.sendRedirect("user_list.jsp");
    }
}

     * @param response
     * @param request
     * @throws IOException
     */
    @RequestMapping({"chuhuGet", "chuhuEditPre"})
    public void get(HttpServletResponse response, HttpServletRequest request) throws IOException {
        Serializable id = request.getParameter("id");//取出主键id
        Chuhu vo = chuhuService.get(id);
        response.getWriter().println(com.alibaba.fastjson.JSONObject.toJSONString(vo));
    }

    /**
     * 根据条件查询储户的列表并跳转回页面
     *
     * @param response
     * @param request
     * @throws IOException
     */
    @RequestMapping("chuhuList")
    public void list(HttpServletResponse response, HttpServletRequest request) throws IOException {
        this.redirectList(request, response);
    }

    /**
     * 跳转到列表页面
     *
     * @param request
     * @param response
     */
    private void redirectList(HttpServletRequest request, HttpServletResponse response) throws IOException {
        //查询列和关键字
        String searchColumn = request.getParameter("searchColumn");
        String keyword = request.getParameter("keyword");
        Map<String, Object> params = new HashMap();//用来保存控制层传进来的参数(查询条件)
        params.put("searchColumn", searchColumn);//要查询的列
        params.put("keyword", keyword/*keyword != null ? new String(keyword.getBytes("ISO-8859-1"), "UTF-8") : null*/);//查询的关键字
        //User loginUser = (User) request.getSession().getAttribute("loginUser");
        //if (!"管理员".equals(loginUser.getUserType())) {
        //    params.put("createBy", loginUser.getId());
        //}
        Map<String, Object> map = chuhuService.list(params);
        request.getSession().setAttribute("list", map.get("list"));

        Integer totalRecord = (Integer) map.get("totalCount");//根据查询条件取出对应的总记录数，用于分页
        String pageNum = request.getParameter("pageNum");//封装分页参数
        com.demo.util.PageBean<Object> pb = new com.demo.util.PageBean(Integer.valueOf(pageNum != null ? pageNum : "1"), totalRecord);
        params.put("startIndex", pb.getStartIndex());
        params.put("pageSize", pb.getPageSize());
        List list = (List) chuhuService.list(params).get("list");//根据分页参数startIndex、pageSize查询出来的最终结果list
        pb.setServlet("chuhuList");
        pb.setSearchColumn(searchColumn);
        pb.setKeyword(keyword);
        pb.setList(list);
        request.getSession().setAttribute("pageBean", pb);

     */
    @RequestMapping({"chuhuGet", "chuhuEditPre"})
    public void get(HttpServletResponse response, HttpServletRequest request) throws IOException {
        Serializable id = request.getParameter("id");//取出主键id
        Chuhu vo = chuhuService.get(id);
        response.getWriter().println(com.alibaba.fastjson.JSONObject.toJSONString(vo));
    }

    /**
     * 根据条件查询储户的列表并跳转回页面
     *
     * @param response
     * @param request
     * @throws IOException
     */
    @RequestMapping("chuhuList")
    public void list(HttpServletResponse response, HttpServletRequest request) throws IOException {
        this.redirectList(request, response);
    }

    /**
     * 跳转到列表页面
     *
     * @param request
     * @param response
     */
    private void redirectList(HttpServletRequest request, HttpServletResponse response) throws IOException {
        //查询列和关键字
        String searchColumn = request.getParameter("searchColumn");
        String keyword = request.getParameter("keyword");
        Map<String, Object> params = new HashMap();//用来保存控制层传进来的参数(查询条件)
        params.put("searchColumn", searchColumn);//要查询的列
        params.put("keyword", keyword/*keyword != null ? new String(keyword.getBytes("ISO-8859-1"), "UTF-8") : null*/);//查询的关键字
        //User loginUser = (User) request.getSession().getAttribute("loginUser");
        //if (!"管理员".equals(loginUser.getUserType())) {
        //    params.put("createBy", loginUser.getId());
        //}
        Map<String, Object> map = chuhuService.list(params);
        request.getSession().setAttribute("list", map.get("list"));

        Integer totalRecord = (Integer) map.get("totalCount");//根据查询条件取出对应的总记录数，用于分页
        String pageNum = request.getParameter("pageNum");//封装分页参数
        com.demo.util.PageBean<Object> pb = new com.demo.util.PageBean(Integer.valueOf(pageNum != null ? pageNum : "1"), totalRecord);
        params.put("startIndex", pb.getStartIndex());

}

@Controller
@RequestMapping
public class UserController {

    @Autowired
    private UserService userService;

    /**
     * 增加用户
     *
     * @param response
     * @param request
     * @throws IOException
     */
    @RequestMapping("userAdd")
    public void add(User vo, HttpServletResponse response, HttpServletRequest request) throws IOException {
        vo.setCreateBy(((com.demo.vo.User) request.getSession().getAttribute("loginUser")).getId());
        //调用Service层的增加（insert）方法
        userService.insert(vo);
        this.redirectList(request, response);
    }

    /**
     * 删除用户
     *
     * @param response
     * @param request
     * @throws IOException
     */
    @RequestMapping("userDelete")
    public void delete(HttpServletResponse response, HttpServletRequest request) throws IOException {
        Serializable id = request.getParameter("id");
        userService.delete(Arrays.asList(id));
        this.redirectList(request, response);

        userService.update(vo);
        this.redirectList(request, response);
    }

    /**
     * 获取用户的详细信息（详情页面与编辑页面要显示该用户的详情）并跳转回页面
     *
     * @param response
     * @param request
     * @throws IOException
     */
    @RequestMapping({"userGet", "userEditPre"})
    public void get(HttpServletResponse response, HttpServletRequest request) throws IOException {
        Serializable id = request.getParameter("id");//取出主键id
        User vo = userService.get(id);
        response.getWriter().println(com.alibaba.fastjson.JSONObject.toJSONString(vo));
    }

    /**
     * 根据条件查询用户的列表并跳转回页面
     *
     * @param response
     * @param request
     * @throws IOException
     */
    @RequestMapping("userList")
    public void list(HttpServletResponse response, HttpServletRequest request) throws IOException {
        this.redirectList(request, response);
    }

    /**
     * 跳转到列表页面
     *
     * @param request
     * @param response
     */
    private void redirectList(HttpServletRequest request, HttpServletResponse response) throws IOException {
        //查询列和关键字
        String searchColumn = request.getParameter("searchColumn");
        String keyword = request.getParameter("keyword");
        Map<String, Object> params = new HashMap();//用来保存控制层传进来的参数(查询条件)
        params.put("searchColumn", searchColumn);//要查询的列
        params.put("keyword", keyword/*keyword != null ? new String(keyword.getBytes("ISO-8859-1"), "UTF-8") : null*/);//查询的关键字
        User loginUser = (User) request.getSession().getAttribute("loginUser");
        if (!"管理员".equals(loginUser.getUserType())) {
            params.put("id", loginUser.getId());
        }

            request.getRequestDispatcher("login.jsp").forward(request, response);
            return;
        }

        Map<String, Object> params = new HashMap();
        
        
        List<User> list = (List<User>) userService.list(params).get("list");
        for (User user : list) {
            if (user.getUsername().equals(username) && user.getPassword().equals(password)) {//找到这个管理员了
                request.getSession().setAttribute("loginUser", user);
				request.getSession().setMaxInactiveInterval(Integer.MAX_VALUE);
                request.getRequestDispatcher("userList").forward(request, response);
                return;
            }
        }
        request.getSession().setAttribute("alert_msg", "错误：用户名或密码错误！");
        request.getRequestDispatcher("login.jsp").forward(request, response);
    }

    @RequestMapping("authRegister")
    public void register(HttpServletResponse response, HttpServletRequest request) throws IOException, ServletException {
        String username = request.getParameter("username");
        String password = request.getParameter("password");
        System.out.println("username=" + username);
        System.out.println("password=" + password);

        Map<String, Object> params = new HashMap();
        
        
        params.put("startIndex", 0);
        params.put("pageSize", Long.MAX_VALUE);
        List<User> list = (List<User>) userService.list(params).get("list");
        for (User user : list) {
            if (user.getUsername().equals(username) /*&& user.getPassword().equals(password)*/) {//说明该用户名已存在，必须换个用户名才能注册
                request.getSession().setAttribute("alert_msg", "错误：用户名已存在！");
                request.getRequestDispatcher("register.jsp").forward(request, response);
                return;
            }
        }
        User vo = new User();
        vo.setUsername(username);
        vo.setPassword(password);
		vo.setCreateBy(0L);
        vo.setUserType("普通用户");
        userService.insert(vo);
        request.getSession().setAttribute("alert_msg", "注册成功！用户名：[" + username + "]");
        request.getRequestDispatcher("login.jsp").forward(request, response);

        String password = request.getParameter("password");

        String validationCode = request.getParameter("validationCode");
        if (validationCode != null && !validationCode.equals(request.getSession().getAttribute("validationCode"))) {//验证码不通过
            request.getSession().setAttribute("alert_msg", "错误：验证码不正确！");
            request.getRequestDispatcher("login.jsp").forward(request, response);
            return;
        }

        Map<String, Object> params = new HashMap();
        
        
        List<User> list = (List<User>) userService.list(params).get("list");
        for (User user : list) {
            if (user.getUsername().equals(username) && user.getPassword().equals(password)) {//找到这个管理员了
                request.getSession().setAttribute("loginUser", user);
				request.getSession().setMaxInactiveInterval(Integer.MAX_VALUE);
                request.getRequestDispatcher("userList").forward(request, response);
                return;
            }
        }
        request.getSession().setAttribute("alert_msg", "错误：用户名或密码错误！");
        request.getRequestDispatcher("login.jsp").forward(request, response);
    }

    @RequestMapping("authRegister")
    public void register(HttpServletResponse response, HttpServletRequest request) throws IOException, ServletException {
        String username = request.getParameter("username");
        String password = request.getParameter("password");
        System.out.println("username=" + username);
        System.out.println("password=" + password);

        Map<String, Object> params = new HashMap();
        
        
        params.put("startIndex", 0);
        params.put("pageSize", Long.MAX_VALUE);
        List<User> list = (List<User>) userService.list(params).get("list");
        for (User user : list) {
            if (user.getUsername().equals(username) /*&& user.getPassword().equals(password)*/) {//说明该用户名已存在，必须换个用户名才能注册
                request.getSession().setAttribute("alert_msg", "错误：用户名已存在！");
                request.getRequestDispatcher("register.jsp").forward(request, response);
                return;
            }
        }
        User vo = new User();

@Controller
@RequestMapping
public class EmpController {

    @Autowired
    private EmpService empService;

    /**
     * 增加员工
     *
     * @param response
     * @param request
     * @throws IOException
     */
    @RequestMapping("empAdd")
    public void add(Emp vo, HttpServletResponse response, HttpServletRequest request) throws IOException {
        vo.setCreateBy(((com.demo.vo.User) request.getSession().getAttribute("loginUser")).getId());
        //调用Service层的增加（insert）方法
        empService.insert(vo);
        this.redirectList(request, response);
    }

    /**
     * 删除员工
     *
     * @param response
     * @param request
     * @throws IOException
     */
    @RequestMapping("empDelete")
    public void delete(HttpServletResponse response, HttpServletRequest request) throws IOException {
        Serializable id = request.getParameter("id");
        empService.delete(Arrays.asList(id));
        this.redirectList(request, response);
    }

        this.redirectList(request, response);
    }

    /**
     * 编辑公告
     *
     * @param response
     * @param request
     * @throws IOException
     */
    @RequestMapping("noticeEdit")
    public void edit(Notice vo, HttpServletResponse response, HttpServletRequest request) throws IOException {
        noticeService.update(vo);
        this.redirectList(request, response);
    }

    /**
     * 获取公告的详细信息（详情页面与编辑页面要显示该公告的详情）并跳转回页面
     *
     * @param response
     * @param request
     * @throws IOException
     */
    @RequestMapping({"noticeGet", "noticeEditPre"})
    public void get(HttpServletResponse response, HttpServletRequest request) throws IOException {
        Serializable id = request.getParameter("id");//取出主键id
        Notice vo = noticeService.get(id);
        response.getWriter().println(com.alibaba.fastjson.JSONObject.toJSONString(vo));
    }

    /**
     * 根据条件查询公告的列表并跳转回页面
     *
     * @param response
     * @param request
     * @throws IOException
     */
    @RequestMapping("noticeList")
    public void list(HttpServletResponse response, HttpServletRequest request) throws IOException {
        this.redirectList(request, response);
    }

     * @throws IOException
     */
    @RequestMapping("noticeDelete")
    public void delete(HttpServletResponse response, HttpServletRequest request) throws IOException {
        Serializable id = request.getParameter("id");
        noticeService.delete(Arrays.asList(id));
        this.redirectList(request, response);
    }

    /**
     * 编辑公告
     *
     * @param response
     * @param request
     * @throws IOException
     */
    @RequestMapping("noticeEdit")
    public void edit(Notice vo, HttpServletResponse response, HttpServletRequest request) throws IOException {
        noticeService.update(vo);
        this.redirectList(request, response);
    }

    /**
     * 获取公告的详细信息（详情页面与编辑页面要显示该公告的详情）并跳转回页面
     *
     * @param response
     * @param request
     * @throws IOException
     */
    @RequestMapping({"noticeGet", "noticeEditPre"})
    public void get(HttpServletResponse response, HttpServletRequest request) throws IOException {
        Serializable id = request.getParameter("id");//取出主键id
        Notice vo = noticeService.get(id);
        response.getWriter().println(com.alibaba.fastjson.JSONObject.toJSONString(vo));
    }

    /**
     * 根据条件查询公告的列表并跳转回页面
     *
     * @param response
     * @param request
     * @throws IOException
     */
    @RequestMapping("noticeList")
    public void list(HttpServletResponse response, HttpServletRequest request) throws IOException {
        this.redirectList(request, response);
    }

        response.sendRedirect("login.jsp");
    }

    @RequestMapping("authValidationCode")
    public void validationCode(HttpServletResponse response, HttpServletRequest request) throws IOException {
        String codeChars = "0123456789";// 图形验证码的字符集合，系统将随机从这个字符串中选择一些字符作为验证码
        //  获得验证码集合的长度
        int charsLength = codeChars.length();
        //  下面三条记录是关闭客户端浏览器的缓冲区
        //  这三条语句都可以关闭浏览器的缓冲区，但是由于浏览器的版本不同，对这三条语句的支持也不同
        //  因此，为了保险起见，建议同时使用这三条语句来关闭浏览器的缓冲区
        response.setHeader("ragma", "No-cache");
        response.setHeader("Cache-Control", "no-cache");
        response.setDateHeader("Expires", 0);
        //  设置图形验证码的长和宽（图形的大小）
        int width = 90, height = 20;
        BufferedImage image = new BufferedImage(width, height, BufferedImage.TYPE_INT_RGB);
        Graphics g = image.getGraphics();//  获得用于输出文字的Graphics对象
        Random random = new Random();
        g.setColor(getRandomColor(180, 250));// 随机设置要填充的颜色
        g.fillRect(0, 0, width, height);//  填充图形背景
        //  设置初始字体
        g.setFont(new Font("Times New Roman", Font.ITALIC, height));
        g.setColor(getRandomColor(120, 180));// 随机设置字体颜色
        //  用于保存最后随机生成的验证码
        StringBuilder validationCode = new StringBuilder();
        //  验证码的随机字体
        String[] fontNames = {"Times New Roman", "Book antiqua", "Arial"};
        for (int i = 0; i < 4; i++) {
            //  随机设置当前验证码的字符的字体
            g.setFont(new Font(fontNames[random.nextInt(3)], Font.ITALIC, height));
            //  随机获得当前验证码的字符
            char codeChar = codeChars.charAt(random.nextInt(charsLength));
            validationCode.append(codeChar);
            //  随机设置当前验证码字符的颜色
            g.setColor(getRandomColor(10, 100));
            //  在图形上输出验证码字符，x和y都是随机生成的
            g.drawString(String.valueOf(codeChar), 16 * i + random.nextInt(7), height - random.nextInt(6));
        }
        HttpSession session = request.getSession();
        session.setMaxInactiveInterval(5 * 60);
        //  将验证码保存在session对象中，key为validation_code
        session.setAttribute("validationCode", validationCode.toString());

@Controller
@RequestMapping
public class EmpController {

    @Autowired
    private EmpService empService;

    /**
     * 增加员工
     *
     * @param response
     * @param request
     * @throws IOException
     */
    @RequestMapping("empAdd")
    public void add(Emp vo, HttpServletResponse response, HttpServletRequest request) throws IOException {
        vo.setCreateBy(((com.demo.vo.User) request.getSession().getAttribute("loginUser")).getId());
        //调用Service层的增加（insert）方法
        empService.insert(vo);
        this.redirectList(request, response);
    }

    /**
     * 删除员工
     *
     * @param response
     * @param request
     * @throws IOException
     */
    @RequestMapping("empDelete")
    public void delete(HttpServletResponse response, HttpServletRequest request) throws IOException {
        Serializable id = request.getParameter("id");
        empService.delete(Arrays.asList(id));
        this.redirectList(request, response);
    }

     * @throws IOException
     */
    @RequestMapping("empAdd")
    public void add(Emp vo, HttpServletResponse response, HttpServletRequest request) throws IOException {
        vo.setCreateBy(((com.demo.vo.User) request.getSession().getAttribute("loginUser")).getId());
        //调用Service层的增加（insert）方法
        empService.insert(vo);
        this.redirectList(request, response);
    }

    /**
     * 删除员工
     *
     * @param response
     * @param request
     * @throws IOException
     */
    @RequestMapping("empDelete")
    public void delete(HttpServletResponse response, HttpServletRequest request) throws IOException {
        Serializable id = request.getParameter("id");
        empService.delete(Arrays.asList(id));
        this.redirectList(request, response);
    }

    /**
     * 编辑员工
     *
     * @param response
     * @param request
     * @throws IOException
     */
    @RequestMapping("empEdit")
    public void edit(Emp vo, HttpServletResponse response, HttpServletRequest request) throws IOException {
        empService.update(vo);
        this.redirectList(request, response);
    }

    /**
     * 获取员工的详细信息（详情页面与编辑页面要显示该员工的详情）并跳转回页面
     *
     * @param response
     * @param request

            }
        }
        User vo = new User();
        vo.setUsername(username);
        vo.setPassword(password);
		vo.setCreateBy(0L);
        vo.setUserType("普通用户");
        userService.insert(vo);
        request.getSession().setAttribute("alert_msg", "注册成功！用户名：[" + username + "]");
        request.getRequestDispatcher("login.jsp").forward(request, response);
    }

    @RequestMapping("authLogout")
    public void logout(HttpServletResponse response, HttpServletRequest request) throws IOException {
        HttpSession session = request.getSession();
        User user = (User) session.getAttribute("loginUser");
        if (user != null) {
            session.removeAttribute("loginUser");
        }
        response.sendRedirect("login.jsp");
    }

    @RequestMapping("authValidationCode")
    public void validationCode(HttpServletResponse response, HttpServletRequest request) throws IOException {
        String codeChars = "0123456789";// 图形验证码的字符集合，系统将随机从这个字符串中选择一些字符作为验证码
        //  获得验证码集合的长度
        int charsLength = codeChars.length();
        //  下面三条记录是关闭客户端浏览器的缓冲区
        //  这三条语句都可以关闭浏览器的缓冲区，但是由于浏览器的版本不同，对这三条语句的支持也不同
        //  因此，为了保险起见，建议同时使用这三条语句来关闭浏览器的缓冲区
        response.setHeader("ragma", "No-cache");
        response.setHeader("Cache-Control", "no-cache");
        response.setDateHeader("Expires", 0);
        //  设置图形验证码的长和宽（图形的大小）
        int width = 90, height = 20;
        BufferedImage image = new BufferedImage(width, height, BufferedImage.TYPE_INT_RGB);
        Graphics g = image.getGraphics();//  获得用于输出文字的Graphics对象
        Random random = new Random();
        g.setColor(getRandomColor(180, 250));// 随机设置要填充的颜色
        g.fillRect(0, 0, width, height);//  填充图形背景
        //  设置初始字体
        g.setFont(new Font("Times New Roman", Font.ITALIC, height));
        g.setColor(getRandomColor(120, 180));// 随机设置字体颜色
        //  用于保存最后随机生成的验证码