JavaWeb项目开发案例精粹-第4章博客网站系统-004Service层

1.

 package com.sanqing.service;

 import java.util.List;

 import com.sanqing.fenye.Page;
 import com.sanqing.fenye.Result;
 import com.sanqing.po.Article;

 public interface ArticleService {
     //进行文章的保存
     public void addArticle(Article article);

     //取出用户所有的文章
     public List<Article> showUserAllArticle(String username);

     //分页显示用户文章
     public Result showUserArticleByPage(String username,Page page);

     //分页显示全部文章
     public Result showArticleByPage(Page page);

     //显示文章
     public Article showArticle(int id);

     //获得评论数
     public int getCritiqueCount(int AId);
 }

2.

 package com.sanqing.service;

 import java.util.List;

 import com.sanqing.dao.ArticleDAO;
 import com.sanqing.dao.CritiqueDAO;
 import com.sanqing.fenye.Page;
 import com.sanqing.fenye.PageUtil;
 import com.sanqing.fenye.Result;
 import com.sanqing.po.Article;

 public class ArticleServiceImpl implements ArticleService {
     private ArticleDAO articleDAO;
     private CritiqueDAO critiqueDAO;

     public CritiqueDAO getCritiqueDAO() {
         return critiqueDAO;
     }

     public void setCritiqueDAO(CritiqueDAO critiqueDAO) {
         this.critiqueDAO = critiqueDAO;
     }

     public ArticleDAO getArticleDAO() {
         return articleDAO;
     }

     public void setArticleDAO(ArticleDAO articleDAO) {
         this.articleDAO = articleDAO;
     }

     public void addArticle(Article article) {
         articleDAO.add(article);
     }

     public List<Article> showUserAllArticle(String username) {
         System.out.println(articleDAO.queryUserAllCount(username));
         return articleDAO.queryUserAll(username);
     }

     public Result showUserArticleByPage(String username, Page page) {
         page = PageUtil.createPage(page,articleDAO.queryUserAllCount(username));
         List<Article> all = articleDAO.queryByPage(username, page);
         Result result = new Result();
         result.setPage(page);
         result.setList(all);
         return result;
     }

     public Result showArticleByPage(Page page) {
         page = PageUtil.createPage(page,articleDAO.queryAllCount());
         List<Article> all = articleDAO.queryAllByPage(page);
         Result result = new Result();
         result.setPage(page);
         result.setList(all);
         return result;
     }

     public Article showArticle(int id) {
         return articleDAO.queryById(id);
     }

     public int getCritiqueCount(int AId) {
         return critiqueDAO.queryCritiqueCount(AId);
     }

 }

3.

 package com.sanqing.service;

 import com.sanqing.po.BlogInfo;

 public interface BlogInfoService {
     //设置博客个性化内容
     public void setBlogInfo(BlogInfo blogInfo);

     //获得博客个性化内容
     public BlogInfo getBlogInfo(String name);
 }

4.

 package com.sanqing.service;

 import com.sanqing.dao.BlogInfoDAO;
 import com.sanqing.po.BlogInfo;

 public class BlogInfoServiceImpl implements BlogInfoService {
     private BlogInfoDAO blogInfoDAO;

     public BlogInfo getBlogInfo(String username) {
         return blogInfoDAO.get(username);
     }

     public BlogInfoDAO getBlogInfoDAO() {
         return blogInfoDAO;
     }

     public void setBlogInfoDAO(BlogInfoDAO blogInfoDAO) {
         this.blogInfoDAO = blogInfoDAO;
     }

     public void setBlogInfo(BlogInfo blogInfo) {
         //通过调用DAO组件来完成
         blogInfoDAO.save(blogInfo);
     }

 }

5.

 package com.sanqing.service;

 import com.sanqing.fenye.Page;
 import com.sanqing.fenye.Result;
 import com.sanqing.po.Critique;

 public interface CritiqueService {
     //添加评论
     public void addCritique(Critique critique);

     //分页显示评论
     public Result showCritiqueByPage(int AId,Page page);

     //获得指定文章的评论数
     public int getCritiqueCount(int AId);
 }

6.

 package com.sanqing.service;

 import java.util.List;

 import com.sanqing.dao.CritiqueDAO;
 import com.sanqing.fenye.Page;
 import com.sanqing.fenye.PageUtil;
 import com.sanqing.fenye.Result;
 import com.sanqing.po.Article;
 import com.sanqing.po.Critique;

 public class CritiqueServiceImpl implements CritiqueService {
     private CritiqueDAO critiqueDAO;

     public CritiqueDAO getCritiqueDAO() {
         return critiqueDAO;
     }

     public void setCritiqueDAO(CritiqueDAO critiqueDAO) {
         this.critiqueDAO = critiqueDAO;
     }

     public void addCritique(Critique critique) {
         critiqueDAO.addCritique(critique);
     }

     public Result showCritiqueByPage(int AId, Page page) {
         page = PageUtil.createPage(page,critiqueDAO.queryCritiqueCount(AId));
         List<Critique> all = critiqueDAO.queryByPage(AId, page);
         Result result = new Result();
         result.setPage(page);
         result.setList(all);
         return result;
     }

     public int getCritiqueCount(int AId) {
         return critiqueDAO.queryCritiqueCount(AId);
     }
 }

7.

 package com.sanqing.service;

 import java.util.Date;

 public interface DianjiliangService {
     //ÅжÏÊÇ·ñµã»÷¹ý
     public boolean isVistor(int AId,String IP,Date time);
 }

8.

 package com.sanqing.service;

 import java.util.Date;

 import com.sanqing.dao.DianjiliangDAO;
 import com.sanqing.po.Dianjiliang;

 public class DianjiliangServiceImpl  implements DianjiliangService{
     private DianjiliangDAO dianjiliangDAO;

     public DianjiliangDAO getDianjiliangDAO() {
         return dianjiliangDAO;
     }

     public void setDianjiliangDAO(DianjiliangDAO dianjiliangDAO) {
         this.dianjiliangDAO = dianjiliangDAO;
     }

     public boolean isVistor(int AId, String IP, Date time) {
         if(dianjiliangDAO.queryByAId(AId, IP, time).size() != 0) {
             System.out.println("该IP今天点击过了");
             //表示用户已经点击过了。
             return true;
         } else {
             System.out.println("该IP今天没有点击过");
             //表示用户没有点击过
             Dianjiliang djl = new Dianjiliang();
             djl.setAId(AId);
             djl.setIp(IP);
             djl.setTime(time);
             //保存记录
             dianjiliangDAO.addJilu(djl);
             return false;
         }
     }

 }

9.

 package com.sanqing.service;

 import com.sanqing.po.User;

 public interface UserService {
     //用户注册
     public boolean registerUser(User user);

     //用户登陆
     public boolean loginUser(User user);
 }

10.

 package com.sanqing.service;

 import com.sanqing.dao.UserDAO;
 import com.sanqing.po.User;

 public class UserServiceImpl implements UserService {
     private UserDAO userDAO;

     public boolean registerUser(User user) {
         //判断用户是否存在
         if(userDAO.queryByID(user.getUsername()) != null) {
             return false;
         }else {
             userDAO.add(user);
             return true;
         }
     }

     public UserDAO getUserDAO() {
         return userDAO;
     }

     public void setUserDAO(UserDAO userDAO) {
         this.userDAO = userDAO;
     }

     public boolean loginUser(User user) {
         //判断用户是否存在
         if(userDAO.queryByID(user.getUsername()) == null) {
             return false;
         } else {
             User queryUser = userDAO.queryByID(user.getUsername());
             if(queryUser.getPassword().equals(user.getPassword())) {
                 return true;
             } else {
                 return false;
             }
         }
     }

 }

11.