基于javaweb和mysql的springboot+mybatis高校科研项目管理系统(JavaWeb JSP MySQL Servlet SSM SpringBoot Bootstrap)

毕业程序员java

354人浏览 · 2025-09-29 22:11:24

毕业程序员java · 2025-09-29 22:11:24 发布

私信源码获取及调试交流

运行环境

Java≥8、MySQL≥5.7

开发工具

eclipse/idea/myeclipse/sts等均可配置运行

技术框架

JavaBean MVC JSP SpringBoot MyBatis MySQL CSS JavaScript Bootstrap

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

eclipse/MyEclipse运行：

idea运行：

        int green = minColor + random.nextInt(maxColor - minColor);
        //  获得蓝色的随机颜色值
        int blue = minColor + random.nextInt(maxColor - minColor);
        return new Color(red, green, blue);
    }
}

@Controller
@RequestMapping
public class RenyuanController {

    @Autowired
    private RenyuanService renyuanService;

    /**
     * 增加科研人员
     *
     * @param response
     * @param request
     * @throws IOException
     */
    @RequestMapping("renyuanAdd")
    public void add(Renyuan 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
        renyuanService.insert(vo);
        this.redirectList(request, response);
    }

    /**

        request.getSession().setAttribute("pageBean", pb);
        request.getSession().setAttribute("list", pb.getList());

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

@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());

        //  获得蓝色的随机颜色值
        int blue = minColor + random.nextInt(maxColor - minColor);
        return new Color(red, green, blue);
    }
}

@Controller
@RequestMapping
public class RenyuanController {

    @Autowired
    private RenyuanService renyuanService;

    /**
     * 增加科研人员
     *
     * @param response
     * @param request
     * @throws IOException
     */
    @RequestMapping("renyuanAdd")
    public void add(Renyuan 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
        renyuanService.insert(vo);
        this.redirectList(request, response);
    }


    /**
     * 编辑科研人员
     *
     * @param response
     * @param request
     * @throws IOException
     */
    @RequestMapping("renyuanEdit")
    public void edit(Renyuan vo, HttpServletResponse response, HttpServletRequest request) throws IOException {
        renyuanService.update(vo);
        this.redirectList(request, response);
    }

    /**
     * 获取科研人员的详细信息（详情页面与编辑页面要显示该科研人员的详情）并跳转回页面
     *
     * @param response
     * @param request
     * @throws IOException
     */
    @RequestMapping({"renyuanGet", "renyuanEditPre"})
    public void get(HttpServletResponse response, HttpServletRequest request) throws IOException {
        Serializable id = request.getParameter("id");//取出主键id
        Renyuan vo = renyuanService.get(id);
        request.getSession().setAttribute("vo", vo);
        String to = request.getRequestURI().toLowerCase().contains("get") ? "info" : "edit";//判断是去详情显示页面还是编辑页面
        response.sendRedirect("renyuan_" + to + ".jsp");
    }

    /**
     * 根据条件查询科研人员的列表并跳转回页面
     *
     * @param response
     * @param request
     * @throws IOException
     */
    @RequestMapping("renyuanList")
    public void list(HttpServletResponse response, HttpServletRequest request) throws IOException {
        this.redirectList(request, response);
    }

    /**


        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) xmService.list(params).get("list");//根据分页参数startIndex、pageSize查询出来的最终结果list
        pb.setServlet("xmList");
        pb.setSearchColumn(searchColumn);
        pb.setKeyword(keyword);
        pb.setList(list);
        request.getSession().setAttribute("pageBean", pb);
        request.getSession().setAttribute("list", pb.getList());

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

@Controller
@RequestMapping
public class NoticeController {

    @Autowired
    private NoticeService noticeService;

    /**
     * 增加公告

        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 = renyuanService.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) renyuanService.list(params).get("list");//根据分页参数startIndex、pageSize查询出来的最终结果list
        pb.setServlet("renyuanList");
        pb.setSearchColumn(searchColumn);
        pb.setKeyword(keyword);
        pb.setList(list);
        request.getSession().setAttribute("pageBean", pb);
        request.getSession().setAttribute("list", pb.getList());

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

        ImageIO.write(image, "JPEG", os);// 以JPEG格式向客户端发送图形验证码
    }

    @RequestMapping("authResetPassword")
    public void resetPassword(HttpServletResponse response, HttpServletRequest request) throws IOException, ServletException {
        String msg;
        User loginUser = (User) request.getSession().getAttribute("loginUser");
        String oldPassword = request.getParameter("oldPassword");
        if (!loginUser.getPassword().equals(oldPassword)) {
            msg = "原密码错误！";
        } else {
            String newPassword = request.getParameter("newPassword");
            loginUser.setPassword(newPassword);
            this.userService.update(loginUser);
            msg = "修改成功！";
        }
        request.getSession().setAttribute("alert_msg", msg);
        request.getRequestDispatcher("reset_password.jsp").forward(request, response);
    }

    // 返回一个随机颜色（Color对象）
    private Color getRandomColor(int minColor, int maxColor) {
        Random random = new Random();
        // 保存minColor最大不会超过255
        if (minColor > 255)
            minColor = 255;
        //  保存minColor最大不会超过255
        if (maxColor > 255)
            maxColor = 255;
        //  获得红色的随机颜色值
        int red = minColor + random.nextInt(maxColor - minColor);
        //  获得绿色的随机颜色值
        int green = minColor + random.nextInt(maxColor - minColor);
        //  获得蓝色的随机颜色值
        int blue = minColor + random.nextInt(maxColor - minColor);
        return new Color(red, green, blue);
    }
}

     *
     * @param response
     * @param request
     * @throws IOException
     */
    @RequestMapping("renyuanAdd")
    public void add(Renyuan 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
        renyuanService.insert(vo);
        this.redirectList(request, response);
    }

    /**
     * 删除科研人员
     *
     * @param response
     * @param request
     * @throws IOException
     */
    @RequestMapping("renyuanDelete")
    public void delete(HttpServletResponse response, HttpServletRequest request) throws IOException {
        Serializable id = request.getParameter("id");
        renyuanService.delete(Arrays.asList(id));
        this.redirectList(request, response);
    }

    /**
     * 编辑科研人员
     *
     * @param response
     * @param request
     * @throws IOException
     */
    @RequestMapping("renyuanEdit")
    public void edit(Renyuan vo, HttpServletResponse response, HttpServletRequest request) throws IOException {
        renyuanService.update(vo);
        this.redirectList(request, response);
    }

    /**
     * 获取科研人员的详细信息（详情页面与编辑页面要显示该科研人员的详情）并跳转回页面
     *
     * @param response
     * @param request
     * @throws IOException
     */
    @RequestMapping({"renyuanGet", "renyuanEditPre"})
    public void get(HttpServletResponse response, HttpServletRequest request) throws IOException {

     */
    @RequestMapping({"xmGet", "xmEditPre"})
    public void get(HttpServletResponse response, HttpServletRequest request) throws IOException {
        Serializable id = request.getParameter("id");//取出主键id
        Xm vo = xmService.get(id);
        request.getSession().setAttribute("vo", vo);
        String to = request.getRequestURI().toLowerCase().contains("get") ? "info" : "edit";//判断是去详情显示页面还是编辑页面
        response.sendRedirect("xm_" + to + ".jsp");
    }

    /**
     * 根据条件查询项目的列表并跳转回页面
     *
     * @param response
     * @param request
     * @throws IOException
     */
    @RequestMapping("xmList")
    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 = xmService.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());

    }

    /**
     * 编辑项目
     *
     * @param response
     * @param request
     * @throws IOException
     */
    @RequestMapping("xmEdit")
    public void edit(Xm vo, HttpServletResponse response, HttpServletRequest request) throws IOException {
        xmService.update(vo);
        this.redirectList(request, response);
    }

    /**
     * 获取项目的详细信息（详情页面与编辑页面要显示该项目的详情）并跳转回页面
     *
     * @param response
     * @param request
     * @throws IOException
     */
    @RequestMapping({"xmGet", "xmEditPre"})
    public void get(HttpServletResponse response, HttpServletRequest request) throws IOException {
        Serializable id = request.getParameter("id");//取出主键id
        Xm vo = xmService.get(id);
        request.getSession().setAttribute("vo", vo);
        String to = request.getRequestURI().toLowerCase().contains("get") ? "info" : "edit";//判断是去详情显示页面还是编辑页面
        response.sendRedirect("xm_" + to + ".jsp");
    }

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

    /**

        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");
    }
}

@Controller
@RequestMapping
public class XmController {

     * @param request
     * @throws IOException
     */
    @RequestMapping("renyuanEdit")
    public void edit(Renyuan vo, HttpServletResponse response, HttpServletRequest request) throws IOException {
        renyuanService.update(vo);
        this.redirectList(request, response);
    }

    /**
     * 获取科研人员的详细信息（详情页面与编辑页面要显示该科研人员的详情）并跳转回页面
     *
     * @param response
     * @param request
     * @throws IOException
     */
    @RequestMapping({"renyuanGet", "renyuanEditPre"})
    public void get(HttpServletResponse response, HttpServletRequest request) throws IOException {
        Serializable id = request.getParameter("id");//取出主键id
        Renyuan vo = renyuanService.get(id);
        request.getSession().setAttribute("vo", vo);
        String to = request.getRequestURI().toLowerCase().contains("get") ? "info" : "edit";//判断是去详情显示页面还是编辑页面
        response.sendRedirect("renyuan_" + to + ".jsp");
    }

    /**
     * 根据条件查询科研人员的列表并跳转回页面
     *
     * @param response
     * @param request
     * @throws IOException
     */
    @RequestMapping("renyuanList")
    public void list(HttpServletResponse response, HttpServletRequest request) throws IOException {
        this.redirectList(request, response);
    }

    /**
     * 跳转到列表页面
     *
     * @param request

        Serializable id = request.getParameter("id");//取出主键id
        Renyuan vo = renyuanService.get(id);
        request.getSession().setAttribute("vo", vo);
        String to = request.getRequestURI().toLowerCase().contains("get") ? "info" : "edit";//判断是去详情显示页面还是编辑页面
        response.sendRedirect("renyuan_" + to + ".jsp");
    }

    /**
     * 根据条件查询科研人员的列表并跳转回页面
     *
     * @param response
     * @param request
     * @throws IOException
     */
    @RequestMapping("renyuanList")
    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 = renyuanService.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) renyuanService.list(params).get("list");//根据分页参数startIndex、pageSize查询出来的最终结果list
        pb.setServlet("renyuanList");
        pb.setSearchColumn(searchColumn);
        pb.setKeyword(keyword);
        pb.setList(list);
        request.getSession().setAttribute("pageBean", pb);
        request.getSession().setAttribute("list", pb.getList());

     * @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
        Map<String, Object> map = noticeService.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) 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");
    }
}

@Configuration

public class CustomWebMvcConfigurer implements WebMvcConfigurer {
    @Override
    public void addInterceptors(InterceptorRegistry registry) {
        registry.addInterceptor(new LoginInterceptor()).addPathPatterns("/*");
    }

    public class LoginInterceptor implements HandlerInterceptor {
        public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object o) throws Exception {
            request.setCharacterEncoding("utf-8");

        //  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());
        g.dispose();//  关闭Graphics对象
        OutputStream os = response.getOutputStream();
        ImageIO.write(image, "JPEG", os);// 以JPEG格式向客户端发送图形验证码
    }

    @RequestMapping("authResetPassword")
    public void resetPassword(HttpServletResponse response, HttpServletRequest request) throws IOException, ServletException {
        String msg;
        User loginUser = (User) request.getSession().getAttribute("loginUser");
        String oldPassword = request.getParameter("oldPassword");
        if (!loginUser.getPassword().equals(oldPassword)) {
            msg = "原密码错误！";
        } else {
            String newPassword = request.getParameter("newPassword");
            loginUser.setPassword(newPassword);
            this.userService.update(loginUser);

     *
     * @param response
     * @param request
     * @throws IOException
     */
    @RequestMapping("renyuanList")
    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 = renyuanService.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) renyuanService.list(params).get("list");//根据分页参数startIndex、pageSize查询出来的最终结果list
        pb.setServlet("renyuanList");
        pb.setSearchColumn(searchColumn);
        pb.setKeyword(keyword);
        pb.setList(list);
        request.getSession().setAttribute("pageBean", pb);
        request.getSession().setAttribute("list", pb.getList());

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

        //  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());
        g.dispose();//  关闭Graphics对象
        OutputStream os = response.getOutputStream();
        ImageIO.write(image, "JPEG", os);// 以JPEG格式向客户端发送图形验证码
    }

    @RequestMapping("authResetPassword")
    public void resetPassword(HttpServletResponse response, HttpServletRequest request) throws IOException, ServletException {
        String msg;
        User loginUser = (User) request.getSession().getAttribute("loginUser");
        String oldPassword = request.getParameter("oldPassword");
        if (!loginUser.getPassword().equals(oldPassword)) {
            msg = "原密码错误！";
        } else {
            String newPassword = request.getParameter("newPassword");
            loginUser.setPassword(newPassword);
            this.userService.update(loginUser);
            msg = "修改成功！";
        }
        request.getSession().setAttribute("alert_msg", msg);

        response.sendRedirect("xm_" + to + ".jsp");
    }

    /**
     * 根据条件查询项目的列表并跳转回页面
     *
     * @param response
     * @param request
     * @throws IOException
     */
    @RequestMapping("xmList")
    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 = xmService.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) xmService.list(params).get("list");//根据分页参数startIndex、pageSize查询出来的最终结果list
        pb.setServlet("xmList");
        pb.setSearchColumn(searchColumn);
        pb.setKeyword(keyword);
        pb.setList(list);
        request.getSession().setAttribute("pageBean", pb);
        request.getSession().setAttribute("list", pb.getList());

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

请添加图片描述

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