小说网站|基于Springboot+Vue实现在线小说阅读网站

package com.spring.controller;
import com.spring.util.DESUtil;
import java.awt.*;
import java.awt.image.BufferedImage;
import java.io.IOException;
import java.io.OutputStream;
import java.util.Random;
import javax.imageio.ImageIO;
import javax.servlet.ServletOutputStream;
import javax.servlet.http.HttpSession;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
/**
 * 验证码控制器
 */
@Controller
public class CaptchaController extends BaseController {
    /**
     * 输出验证码图片,并记录session “random” 里等待登录时写入
     */
    @RequestMapping("/captcha")
    public String Index() {
        // 把验证码字符串写入session 中，保存待下次验证时使用
        String sRand = createRandomString(4);
        try {
            // 输出渲染好的内容到前端浏览器
            if (isAjax()) {
                String result = null;
                do {
                    try {
                        result = DESUtil.encrypt("CaptchControllerPassword", sRand);
                    } catch (Exception e) {
                        result = null;
                    }
                    if (result != null) {
                        if (!sRand.equals(DESUtil.decrypt("CaptchControllerPassword", result))) {
                            result = null; // 解不出来所以出错
                        }
                    }
                } while (result == null);
                assign("url", "/randtocaptch?captchToken=" + urlencode(result));
                assign("token", result);
                return json();
            } else {
                //byte[] img = xxx;
                response.setContentType("image/jpeg"); // 定义输出类型为 图片
                response.setHeader("Pragma", "No-cache"); // 设置为无缓存
                response.setHeader("Cache-Control", "no-cache"); // 设置为无缓存
                response.setDateHeader("Expires", 0); // 设置缓存时间为0秒后过期
                request.getSession().setAttribute("random", sRand);
                ServletOutputStream stream = response.getOutputStream();
                createCaptch(sRand, stream);
                stream.flush();
                stream.close();
            }
        } catch (Exception e) {
            e.printStackTrace();
        }
        return "success";
    }
    /**
     * url 编码，中文要进行编码输出
     * @param str
     * @return
     */
    public static String urlencode(Object str) {
        try {
            return java.net.URLEncoder.encode(String.valueOf(str), "UTF-8");
        } catch (Exception e) {
            e.printStackTrace();
        }
        return str.toString();
    }
    /**
     * 使用上面的加密字符串生成验证码
     * @return
     */
    @RequestMapping("/randtocaptch")
    public String getCaptch() throws IOException {
        String captchToken = request.getParameter("captchToken");
        String sRand = DESUtil.decrypt("CaptchControllerPassword", captchToken);
        HttpSession session = request.getSession();
        {
            //byte[] img = xxx;
            response.setContentType("image/jpeg"); // 定义输出类型为 图片
            response.setHeader("Pragma", "No-cache"); // 设置为无缓存
            response.setHeader("Cache-Control", "no-cache"); // 设置为无缓存
            response.setDateHeader("Expires", 0); // 设置缓存时间为0秒后过期
            ServletOutputStream stream = response.getOutputStream();
            createCaptch(sRand, stream);
            stream.flush();
            stream.close();
        }
        return "success";
    }
    private String createRandomString(int len) {
        // 生成随机数类
        Random random = new Random();
        String result = "";
        for (int i = 0; i < len; i++) {
            String rand = String.valueOf(random.nextInt(10));
            result += rand;
        }
        return result;
    }
    private void createCaptch(String randomstr, OutputStream stream) {
        int width = 60, height = 20; // 定义图片宽为 60  高度为 20
        // 创建图片缓冲区
        BufferedImage image = new BufferedImage(width, height, BufferedImage.TYPE_INT_RGB);
        // 获取渲染画板
        Graphics g = image.getGraphics();
        // 生成随机数类
        Random random = new Random();
        // 设置颜色
        g.setColor(getRandColor(200, 250));
        // 绘制矩形
        g.fillRect(0, 0, width, height);
        // 设置字体信息
        g.setFont(new Font("Times New Roman", Font.PLAIN, 18));
        // 设置颜色信息
        g.setColor(getRandColor(160, 200));
        // 写入干扰线
        for (int i = 0; i < 155; i++) {
            int x = random.nextInt(width);
            int y = random.nextInt(height);
            int xl = random.nextInt(12);
            int yl = random.nextInt(12);
            g.drawLine(x, y, x + xl, y + yl);
        }
        // 写入验证码字符串
        for (int i = 0; i < randomstr.length(); i++) {
            String rand = randomstr.substring(i, i + 1); //String.valueOf(random.nextInt(10));
            g.setColor(new Color(20 + random.nextInt(110), 20 + random.nextInt(110), 20 + random.nextInt(110)));
            g.drawString(rand, 13 * i + 6, 16);
        }
        g.dispose(); // 释放画板
        try {
            // 输出渲染好的内容到前端浏览器
            ImageIO.write(image, "JPEG", stream);
            stream.flush();
            stream.close();
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
    /**
     * 获取随机颜色
     * @param fc
     * @param bc
     * @return
     */
    protected Color getRandColor(int fc, int bc) {
        Random random = new Random();
        if (fc > 255) fc = 255;
        if (bc > 255) bc = 255;
        int r = fc + random.nextInt(bc - fc);
        int g = fc + random.nextInt(bc - fc);
        int b = fc + random.nextInt(bc - fc);
        return new Color(r, g, b);
    }
}

package com.spring.controller;
import com.jntoo.db.*;
import com.jntoo.db.utils.*;
import com.spring.dao.*;
import com.spring.entity.*;
import com.spring.service.*;
import com.spring.util.*;
import com.spring.util.Info;
import java.util.*;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import tk.mybatis.mapper.entity.Example;
/**
 * 点赞 */
@Controller
public class DianzanController extends BaseController {
    @Autowired
    private DianzanMapper dao;
    @Autowired
    private DianzanService service;
    @Autowired
    private PinglunService serviceRead;
    /**
     *  后台列表页
     *
     */
    @RequestMapping("/dianzan_list")
    public String list() {
        // 检测是否有登录，没登录则跳转到登录页面
        if (!checkLogin()) {
            return showError("尚未登录", "./login.do");
        }
        String order = Request.get("order", "id"); // 获取前台提交的URL参数 order  如果没有则设置为id
        String sort = Request.get("sort", "desc"); // 获取前台提交的URL参数 sort  如果没有则设置为desc
        int pagesize = Request.getInt("pagesize", 12); // 获取前台一页多少行数据
        Example example = new Example(Dianzan.class); //  创建一个扩展搜索类
        Example.Criteria criteria = example.createCriteria(); // 创建一个扩展搜索条件类
        String where = " 1=1 "; // 创建初始条件为：1=1
        where += getWhere(); // 从方法中获取url 上的参数，并写成 sql条件语句
        criteria.andCondition(where); // 将条件写进上面的扩展条件类中
        if (sort.equals("desc")) { // 判断前台提交的sort 参数是否等于  desc倒序  是则使用倒序，否则使用正序
            example.orderBy(order).desc(); // 把sql 语句设置成倒序
        } else {
            example.orderBy(order).asc(); // 把 sql 设置成正序
        }
        int page = request.getParameter("page") == null ? 1 : Integer.valueOf(request.getParameter("page")); // 获取前台提交的URL参数 page  如果没有则设置为1
        page = Math.max(1, page); // 取两个数的最大值，防止page 小于1
        List<Dianzan> list = service.selectPageExample(example, page, pagesize); // 获取当前页的行数
        // 将列表写给界面使用
        assign("totalCount", request.getAttribute("totalCount"));
        assign("list", list);
        assign("orderby", order); // 把当前排序结果写进前台
        assign("sort", sort); // 把当前排序结果写进前台
        return json(); // 将数据写给前端
    }
    public String getWhere() {
        _var = new LinkedHashMap(); // 重置数据
        String where = " ";
        // 判断URL 参数pinglunid是否大于0
        if (Request.getInt("pinglunid") > 0) {
            // 大于0 则写入条件
            where += " AND pinglunid='" + Request.getInt("pinglunid") + "' ";
        }
        // 以下也是一样的操作，判断是否符合条件，符合则写入sql 语句
        if (!Request.get("dianzanren").equals("")) {
            where += " AND dianzanren LIKE '%" + Request.get("dianzanren") + "%' ";
        }
        return where;
    }
    /**
     * 评论人列表
     */
    @RequestMapping("/dianzan_list_pinglunren")
    public String listpinglunren() {
        // 检测是否有登录，没登录则跳转到登录页面
        if (!checkLogin()) {
            return showError("尚未登录", "./login.do");
        }
        String order = Request.get("order", "id"); // 获取前台提交的URL参数 order  如果没有则设置为id
        String sort = Request.get("sort", "desc"); // 获取前台提交的URL参数 sort  如果没有则设置为desc
        int pagesize = Request.getInt("pagesize", 12); // 获取前台一页多少行数据
        Example example = new Example(Dianzan.class); //  创建一个扩展搜索类
        Example.Criteria criteria = example.createCriteria(); // 创建一个扩展搜索条件类
        // 初始化一个条件，条件为：评论人=当前登录用户
        String where = " pinglunren='" + request.getSession().getAttribute("username") + "' ";
        where += getWhere();
        criteria.andCondition(where); // 将条件写入
        if (sort.equals("desc")) { // 注释同list
            example.orderBy(order).desc(); // 注释同list
        } else {
            example.orderBy(order).asc(); // 注释同list
        }
        int page = request.getParameter("page") == null ? 1 : Integer.valueOf(request.getParameter("page")); // 注释同list
        page = Math.max(1, page); // 注释同list
        List<Dianzan> list = service.selectPageExample(example, page, pagesize);
        assign("totalCount", request.getAttribute("totalCount"));
        assign("list", list);
        assign("orderby", order);
        assign("sort", sort);
        return json(); // 将数据写给前端
    }
    /**
     * 点赞人列表
     */
    @RequestMapping("/dianzan_list_dianzanren")
    public String listdianzanren() {
        // 检测是否有登录，没登录则跳转到登录页面
        if (!checkLogin()) {
            return showError("尚未登录", "./login.do");
        }
        String order = Request.get("order", "id"); // 获取前台提交的URL参数 order  如果没有则设置为id
        String sort = Request.get("sort", "desc"); // 获取前台提交的URL参数 sort  如果没有则设置为desc
        int pagesize = Request.getInt("pagesize", 12); // 获取前台一页多少行数据
        Example example = new Example(Dianzan.class); //  创建一个扩展搜索类
        Example.Criteria criteria = example.createCriteria(); // 创建一个扩展搜索条件类
        // 初始化一个条件，条件为：点赞人=当前登录用户
        String where = " dianzanren='" + request.getSession().getAttribute("username") + "' ";
        where += getWhere();
        criteria.andCondition(where); // 将条件写入
        if (sort.equals("desc")) { // 注释同list
            example.orderBy(order).desc(); // 注释同list
        } else {
            example.orderBy(order).asc(); // 注释同list
        }
        int page = request.getParameter("page") == null ? 1 : Integer.valueOf(request.getParameter("page")); // 注释同list
        page = Math.max(1, page); // 注释同list
        List<Dianzan> list = service.selectPageExample(example, page, pagesize);
        assign("totalCount", request.getAttribute("totalCount"));
        assign("list", list);
        assign("orderby", order);
        assign("sort", sort);
        return json(); // 将数据写给前端
    }
    @RequestMapping("/dianzan_add")
    public String add() {
        _var = new LinkedHashMap(); // 重置数据
        int id = Request.getInt("id"); // 根据id 获取 评论模块中的数据
        Pinglun readMap = serviceRead.find(id);
        // 将数据行写入给前台jsp页面
        assign("readMap", readMap);
        return json(); // 将数据写给前端
    }
    @RequestMapping("/dianzan_updt")
    public String updt() {
        _var = new LinkedHashMap(); // 重置数据
        int id = Request.getInt("id");
        // 获取行数据，并赋值给前台jsp页面
        Dianzan mmm = service.find(id);
        assign("mmm", mmm);
        assign("updtself", 0);
        return json(); // 将数据写给前端
    }
    /**
     * 添加内容
     * @return
     */
    @RequestMapping("/dianzaninsert")
    public String insert() {
        _var = new LinkedHashMap(); // 重置数据
        String tmp = "";
        Dianzan post = new Dianzan(); // 创建实体类
        // 设置前台提交上来的数据到实体类中
        post.setPinglunid(Request.getInt("pinglunid"));
        post.setBiao(Request.get("biao"));
        post.setBiaoid(Request.getInt("biaoid"));
        post.setBiaoti(Request.get("biaoti"));
        post.setPingfen(Request.get("pingfen"));
        post.setPinglunneirong(Request.get("pinglunneirong"));
        post.setPinglunren(Request.get("pinglunren"));
        post.setDianzanren(Request.get("dianzanren"));
        post.setPinglunid(Request.getInt("pinglunid"));
        Dianzan dz = DB.name(Dianzan.class).where("pinglunid" , post.getPinglunid()).where("dianzanren" , post.getDianzanren()).find();
        if(dz!= null){
            DB.name(Dianzan.class).delete(dz.getId());
            return jsonResult(-1);
        }
        service.insert(post); // 插入数据
        int charuid = post.getId().intValue();
        Query.execute("update pinglun set dianzanshu=dianzanshu+1 where id='" + request.getParameter("pinglunid") + "'");
        if (isAjax()) {
            return jsonResult(post);
        }
        return showSuccess("保存成功", Request.get("referer").equals("") ? request.getHeader("referer") : Request.get("referer"));
    }
    /**
     * 更新内容
     * @return
     */
    @RequestMapping("/dianzanupdate")
    public String update() {
        _var = new LinkedHashMap(); // 重置数据
        // 创建实体类
        Dianzan post = new Dianzan();
        // 将前台表单数据填充到实体类
        if (!Request.get("pinglunid").equals("")) post.setPinglunid(Request.getInt("pinglunid"));
        if (!Request.get("biao").equals("")) post.setBiao(Request.get("biao"));
        if (!Request.get("biaoid").equals("")) post.setBiaoid(Request.getInt("biaoid"));
        if (!Request.get("biaoti").equals("")) post.setBiaoti(Request.get("biaoti"));
        if (!Request.get("pingfen").equals("")) post.setPingfen(Request.get("pingfen"));
        if (!Request.get("pinglunneirong").equals("")) post.setPinglunneirong(Request.get("pinglunneirong"));
        if (!Request.get("pinglunren").equals("")) post.setPinglunren(Request.get("pinglunren"));
        if (!Request.get("dianzanren").equals("")) post.setDianzanren(Request.get("dianzanren"));
        post.setId(Request.getInt("id"));
        service.update(post); // 更新数据
        int charuid = post.getId().intValue();
        if (isAjax()) {
            return jsonResult(post);
        }
        return showSuccess("保存成功", Request.get("referer")); // 弹出保存成功，并跳转到前台提交的 referer 页面
    }
    /**
     *  删除
     */
    @RequestMapping("/dianzan_delete")
    public String delete() {
        _var = new LinkedHashMap(); // 重置数据
        if (!checkLogin()) {
            return showError("尚未登录");
        }
        int id = Request.getInt("id"); // 根据id 删除某行数据
        Map map = Query.make("dianzan").find(id);
        service.delete(id); // 根据id 删除某行数据
        Query.execute("update pinglun set dianzanshu=dianzanshu-1 where id='" + map.get("pinglunid") + "'");
        return showSuccess("删除成功", request.getHeader("referer")); //弹出删除成功，并跳回上一页
    }
}