基于javaweb+mysql的ssm宠物领养信息管理系统(JavaWeb JSP MySQL Servlet SSM SpringBoot Layui Ajax)

基于javaweb+mysql的ssm宠物领养信息管理系统(JavaWeb JSP MySQL Servlet SSM SpringBoot Layui Ajax)

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 Layui 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、领养模块、宠物模块的增删改查管理

eclipse/MyEclipse运行：

idea运行：

     * 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);//查询的关键字
        response.getWriter().println(com.alibaba.fastjson.JSONObject.toJSONString(linyangService.list(params).get("list")));
    }
}
package com.demo.controller;

@Controller
@RequestMapping
public class NoticeController {

    @Autowired
    private NoticeService noticeService;

    /**
     * 增加公告
     *
     * @param response
     * @param request
     * @throws IOException
     */

    /**
     * 编辑宠物
     *
     * @param response
     * @param request
     * @throws IOException
     */
    @RequestMapping("petEdit")
    public void edit(Pet vo, HttpServletResponse response, HttpServletRequest request) throws IOException {
        petService.update(vo);
        this.redirectList(request, response);
    }

    /**
     * 获取宠物的详细信息（详情页面与编辑页面要显示该宠物的详情）并跳转回页面
     *
     * @param response
     * @param request
     * @throws IOException
     */
    @RequestMapping({"petGet", "petEditPre"})
    public void get(HttpServletResponse response, HttpServletRequest request) throws IOException {
        Serializable id = request.getParameter("id");//取出主键id
        Pet vo = petService.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("pet_" + to + ".jsp");
    }

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

    /**
     * 跳转到列表页面
     *

        }
        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.setUserType("普通用户");//需要设置一个默认值
        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();

@Controller
@RequestMapping
public class LinyangController {

    @Autowired
    private LinyangService linyangService;

    /**
     * 增加领养
     *
     * @param response
     * @param request
     * @throws IOException
     */
    @RequestMapping("linyangAdd")
    public void add(Linyang vo, HttpServletResponse response, HttpServletRequest request) throws IOException {
        //调用Service层的增加（insert）方法
        linyangService.insert(vo);
        this.redirectList(request, response);
    }

    /**
     * 删除领养
     *
     * @param response
     * @param request
     * @throws IOException
     */
    @RequestMapping("linyangDelete")
    public void delete(HttpServletResponse response, HttpServletRequest request) throws IOException {
        Serializable id = request.getParameter("id");
        linyangService.delete(Arrays.asList(id));
        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);
        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("user_" + to + ".jsp");
    }

    /**
     * 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);//查询的关键字
        response.getWriter().println(com.alibaba.fastjson.JSONObject.toJSONString(userService.list(params).get("list")));
    }
}
package com.demo.controller;

@Controller
@RequestMapping
public class NoticeController {

    @Autowired
    private NoticeService noticeService;

    /**
     * 增加公告
     *
     * @param response
     * @param request
     * @throws IOException
     */
    @RequestMapping("noticeAdd")
    public void add(Notice vo, HttpServletResponse response, HttpServletRequest request) throws IOException {
        //调用Service层的增加（insert）方法
        noticeService.insert(vo);
        this.redirectList(request, response);
    }

    /**
     * 删除公告
     *
     * @param response
     * @param request

        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.setUserType("普通用户");//需要设置一个默认值
        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
        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++) {

package com.demo.controller;

@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 {
        //调用Service层的增加（insert）方法
        userService.insert(vo);
        this.redirectList(request, response);
    }

    /**

    public void add(Notice vo, HttpServletResponse response, HttpServletRequest request) throws IOException {
        //调用Service层的增加（insert）方法
        noticeService.insert(vo);
        this.redirectList(request, response);
    }

    /**
     * 删除公告
     *
     * @param response
     * @param request
     * @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);
        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("notice_" + to + ".jsp");

@Controller
@RequestMapping
public class LinyangController {

    @Autowired
    private LinyangService linyangService;

    /**
     * 增加领养
     *
     * @param response
     * @param request
     * @throws IOException
     */
    @RequestMapping("linyangAdd")
    public void add(Linyang vo, HttpServletResponse response, HttpServletRequest request) throws IOException {
        //调用Service层的增加（insert）方法
        linyangService.insert(vo);
        this.redirectList(request, response);
    }

    /**
     * 删除领养
     *
     * @param response
     * @param request
     * @throws IOException
     */
    @RequestMapping("linyangDelete")
    public void delete(HttpServletResponse response, HttpServletRequest request) throws IOException {
        Serializable id = request.getParameter("id");
        linyangService.delete(Arrays.asList(id));
        this.redirectList(request, response);
    }

    /**
     * 编辑领养

            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);
    }
}
package com.demo.controller;

@Controller
@RequestMapping
public class LinyangController {

    @Autowired
    private LinyangService linyangService;

    /**
     * 增加领养
     *

@Controller
@RequestMapping
public class PetController {

    @Autowired
    private PetService petService;

    /**
     * 增加宠物
     *
     * @param response
     * @param request
     * @throws IOException
     */
    @RequestMapping("petAdd")
    public void add(Pet vo, HttpServletResponse response, HttpServletRequest request) throws IOException {
        //调用Service层的增加（insert）方法
        petService.insert(vo);
        this.redirectList(request, response);
    }

    /**
     * 删除宠物
     *
     * @param response
     * @param request
     * @throws IOException
     */
    @RequestMapping("petDelete")
    public void delete(HttpServletResponse response, HttpServletRequest request) throws IOException {
        Serializable id = request.getParameter("id");
        petService.delete(Arrays.asList(id));
        this.redirectList(request, response);
    }

    /**
     * 编辑宠物

        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.setUserType("普通用户");//需要设置一个默认值
        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）

            //  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);
        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);
    }
}
package com.demo.controller;

    @RequestMapping("linyangEdit")
    public void edit(Linyang vo, HttpServletResponse response, HttpServletRequest request) throws IOException {
        linyangService.update(vo);
        this.redirectList(request, response);
    }

    /**
     * 获取领养的详细信息（详情页面与编辑页面要显示该领养的详情）并跳转回页面
     *
     * @param response
     * @param request
     * @throws IOException
     */
    @RequestMapping({"linyangGet", "linyangEditPre"})
    public void get(HttpServletResponse response, HttpServletRequest request) throws IOException {
        Serializable id = request.getParameter("id");//取出主键id
        Linyang vo = linyangService.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("linyang_" + to + ".jsp");
    }

    /**
     * 根据条件查询领养的列表并跳转回页面
     *
     * @param response
     * @param request
     * @throws IOException
     */
    @RequestMapping("linyangList")
    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");

@Controller
@RequestMapping
public class PetController {

    @Autowired
    private PetService petService;

    /**
     * 增加宠物
     *
     * @param response
     * @param request
     * @throws IOException
     */
    @RequestMapping("petAdd")
    public void add(Pet vo, HttpServletResponse response, HttpServletRequest request) throws IOException {
        //调用Service层的增加（insert）方法
        petService.insert(vo);
        this.redirectList(request, response);
    }

    /**
     * 删除宠物
     *
     * @param response
     * @param request
     * @throws IOException
     */
    @RequestMapping("petDelete")
    public void delete(HttpServletResponse response, HttpServletRequest request) throws IOException {
        Serializable id = request.getParameter("id");
        petService.delete(Arrays.asList(id));
        this.redirectList(request, response);
    }

    /**
     * 编辑宠物
     *
     * @param response
     * @param request
     * @throws IOException
     */
    @RequestMapping("petEdit")
    public void edit(Pet vo, HttpServletResponse response, HttpServletRequest request) throws IOException {
        petService.update(vo);
        this.redirectList(request, response);
    }

    /**
     * 获取宠物的详细信息（详情页面与编辑页面要显示该宠物的详情）并跳转回页面

    /**
     * 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);//查询的关键字
        response.getWriter().println(com.alibaba.fastjson.JSONObject.toJSONString(userService.list(params).get("list")));
    }
}
package com.demo.controller;

@Controller
@RequestMapping
public class PetController {

    @Autowired
    private PetService petService;

    /**
     * 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);
    }

    /**
     * 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);//查询的关键字
        response.getWriter().println(com.alibaba.fastjson.JSONObject.toJSONString(noticeService.list(params).get("list")));
    }
}
package com.demo.controller;

@Controller
@RequestMapping
public class UserController {

    @Autowired
    private UserService userService;

    @Autowired
    private LinyangService linyangService;

    /**
     * 增加领养
     *
     * @param response
     * @param request
     * @throws IOException
     */
    @RequestMapping("linyangAdd")
    public void add(Linyang vo, HttpServletResponse response, HttpServletRequest request) throws IOException {
        //调用Service层的增加（insert）方法
        linyangService.insert(vo);
        this.redirectList(request, response);
    }

    /**
     * 删除领养
     *
     * @param response
     * @param request
     * @throws IOException
     */
    @RequestMapping("linyangDelete")
    public void delete(HttpServletResponse response, HttpServletRequest request) throws IOException {
        Serializable id = request.getParameter("id");
        linyangService.delete(Arrays.asList(id));
        this.redirectList(request, response);
    }

    /**
     * 编辑领养
     *
     * @param response
     * @param request
     * @throws IOException
     */
    @RequestMapping("linyangEdit")
    public void edit(Linyang vo, HttpServletResponse response, HttpServletRequest request) throws IOException {
        linyangService.update(vo);
        this.redirectList(request, response);
    }

    /**
     * 获取领养的详细信息（详情页面与编辑页面要显示该领养的详情）并跳转回页面
     *

        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.setUserType("普通用户");//需要设置一个默认值
        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

@Controller
@RequestMapping
public class NoticeController {

    @Autowired
    private NoticeService noticeService;

    /**
     * 增加公告
     *
     * @param response
     * @param request
     * @throws IOException
     */
    @RequestMapping("noticeAdd")
    public void add(Notice vo, HttpServletResponse response, HttpServletRequest request) throws IOException {
        //调用Service层的增加（insert）方法
        noticeService.insert(vo);
        this.redirectList(request, response);
    }

    /**
     * 删除公告
     *
     * @param response
     * @param request
     * @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

        this.redirectList(request, response);
    }

    /**
     * 删除领养
     *
     * @param response
     * @param request
     * @throws IOException
     */
    @RequestMapping("linyangDelete")
    public void delete(HttpServletResponse response, HttpServletRequest request) throws IOException {
        Serializable id = request.getParameter("id");
        linyangService.delete(Arrays.asList(id));
        this.redirectList(request, response);
    }

    /**
     * 编辑领养
     *
     * @param response
     * @param request
     * @throws IOException
     */
    @RequestMapping("linyangEdit")
    public void edit(Linyang vo, HttpServletResponse response, HttpServletRequest request) throws IOException {
        linyangService.update(vo);
        this.redirectList(request, response);
    }

    /**
     * 获取领养的详细信息（详情页面与编辑页面要显示该领养的详情）并跳转回页面
     *
     * @param response
     * @param request
     * @throws IOException
     */
    @RequestMapping({"linyangGet", "linyangEditPre"})
    public void get(HttpServletResponse response, HttpServletRequest request) throws IOException {
        Serializable id = request.getParameter("id");//取出主键id
        Linyang vo = linyangService.get(id);

        
        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.setUserType("普通用户");//需要设置一个默认值
        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));

@Controller
@RequestMapping
public class LinyangController {

    @Autowired
    private LinyangService linyangService;

    /**
     * 增加领养
     *
     * @param response
     * @param request
     * @throws IOException
     */
    @RequestMapping("linyangAdd")
    public void add(Linyang vo, HttpServletResponse response, HttpServletRequest request) throws IOException {
        //调用Service层的增加（insert）方法
        linyangService.insert(vo);
        this.redirectList(request, response);
    }

    /**
     * 删除领养
     *
     * @param response
     * @param request
     * @throws IOException
     */
    @RequestMapping("linyangDelete")
    public void delete(HttpServletResponse response, HttpServletRequest request) throws IOException {
        Serializable id = request.getParameter("id");
        linyangService.delete(Arrays.asList(id));
        this.redirectList(request, response);
    }

    /**
     * 编辑领养
     *
     * @param response
     * @param request
     * @throws IOException
     */
    @RequestMapping("linyangEdit")
    public void edit(Linyang vo, HttpServletResponse response, HttpServletRequest request) throws IOException {
        linyangService.update(vo);
        this.redirectList(request, response);
    }

@Controller
@RequestMapping
public class LinyangController {

    @Autowired
    private LinyangService linyangService;

    /**
     * 增加领养
     *
     * @param response
     * @param request
     * @throws IOException
     */
    @RequestMapping("linyangAdd")
    public void add(Linyang vo, HttpServletResponse response, HttpServletRequest request) throws IOException {
        //调用Service层的增加（insert）方法
        linyangService.insert(vo);
        this.redirectList(request, response);
    }

    /**
     * 删除领养
     *
     * @param response
     * @param request
     * @throws IOException
     */
    @RequestMapping("linyangDelete")
    public void delete(HttpServletResponse response, HttpServletRequest request) throws IOException {
        Serializable id = request.getParameter("id");
        linyangService.delete(Arrays.asList(id));
        this.redirectList(request, response);
    }

    /**
     * 编辑领养
     *

    /**
     * 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);//查询的关键字
        response.getWriter().println(com.alibaba.fastjson.JSONObject.toJSONString(userService.list(params).get("list")));
    }
}
package com.demo.controller;

@Controller
@RequestMapping
public class PetController {

    @Autowired
    private PetService petService;

    /**