Java毕业设计MVC:基于SSM实现计算机硬件评测交流平台(二)

简介: Java毕业设计MVC:基于SSM实现计算机硬件评测交流平台

Java毕业设计MVC:基于SSM实现计算机硬件评测交流平台(一)https://developer.aliyun.com/article/1423250


四,核心代码展示

package com.liuyanzhao.ssm.blog.controller.admin;
import com.liuyanzhao.ssm.blog.entity.Article;
import com.liuyanzhao.ssm.blog.entity.Comment;
import com.liuyanzhao.ssm.blog.entity.User;
import com.liuyanzhao.ssm.blog.service.ArticleService;
import com.liuyanzhao.ssm.blog.service.CommentService;
import com.liuyanzhao.ssm.blog.service.UserService;
import org.json.JSONObject;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.ResponseBody;
import javax.servlet.http.Cookie;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;
import java.util.Date;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import static com.liuyanzhao.ssm.blog.util.MyUtils.getIpAddr;
/**
 * @author znz
 */
@Controller
public class AdminController {
    @Autowired
    private UserService userService;
    @Autowired
    private ArticleService articleService;
    @Autowired
    private CommentService commentService;
    /**
     * 后台首页
     *
     * @return
     */
    @RequestMapping("/admin")
    public String index(Model model)  {
        //文章列表
        List<Article> articleList = articleService.listRecentArticle(5);
        model.addAttribute("articleList",articleList);
        //评论列表
        List<Comment> commentList = commentService.listRecentComment(5);
        model.addAttribute("commentList",commentList);
        return "Admin/index";
    }
    /**
     * 登录页面显示
     *
     * @return
     */
    @RequestMapping("/login")
    public String loginPage() {
        return "Admin/login";
    }
    /**
     * 登录验证
     *
     * @param request
     * @param response
     * @return
     */
    @RequestMapping(value = "/loginVerify",method = RequestMethod.POST)
    @ResponseBody
    public String loginVerify(HttpServletRequest request, HttpServletResponse response)  {
        Map<String, Object> map = new HashMap<String, Object>();
        String username = request.getParameter("username");
        String password = request.getParameter("password");
        String rememberme = request.getParameter("rememberme");
        User user = userService.getUserByNameOrEmail(username);
        if(user==null) {
            map.put("code",0);
            map.put("msg","用户名无效!");
        } else if(!user.getUserPass().equals(password)) {
            map.put("code",0);
            map.put("msg","密码错误!");
        } else {
            //登录成功
            map.put("code",1);
            map.put("msg","");
            //添加session
            request.getSession().setAttribute("user", user);
            //添加cookie
            if(rememberme!=null) {
                //创建两个Cookie对象
                Cookie nameCookie = new Cookie("username", username);
                //设置Cookie的有效期为3天
                nameCookie.setMaxAge(60 * 60 * 24 * 3);
                Cookie pwdCookie = new Cookie("password", password);
                pwdCookie.setMaxAge(60 * 60 * 24 * 3);
                response.addCookie(nameCookie);
                response.addCookie(pwdCookie);
            }
            user.setUserLastLoginTime(new Date());
            user.setUserLastLoginIp(getIpAddr(request));
            userService.updateUser(user);
        }
        String result = new JSONObject(map).toString();
        return result;
    }
    /**
     * 退出登录
     *
     * @param session
     * @return
     */
    @RequestMapping(value = "/admin/logout")
    public String logout(HttpSession session)  {
        session.removeAttribute("user");
        session.invalidate();
        return "redirect:/login";
    }
}
package com.znz.ssm.blog.controller.admin;
import cn.hutool.http.HtmlUtil;
import com.github.pagehelper.PageInfo;
import com.znz.ssm.blog.dto.ArticleParam;
import com.znz.ssm.blog.entity.Article;
import com.znz.ssm.blog.service.ArticleService;
import com.znz.ssm.blog.service.CategoryService;
import com.znz.ssm.blog.service.TagService;
import com.znz.ssm.blog.entity.Category;
import com.znz.ssm.blog.entity.Tag;
import com.znz.ssm.blog.entity.User;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.servlet.ModelAndView;
import javax.servlet.http.HttpSession;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
/**
 * @author znz
 */
@Controller
@RequestMapping("/admin/article")
public class BackArticleController {
    @Autowired
    private ArticleService articleService;
    @Autowired
    private TagService tagService;
    @Autowired
    private CategoryService categoryService;
    /**
     * 后台文章列表显示
     *
     * @return modelAndView
     */
    @RequestMapping(value = "")
    public String index(@RequestParam(required = false, defaultValue = "1") Integer pageIndex,
                        @RequestParam(required = false, defaultValue = "10") Integer pageSize,
                        @RequestParam(required = false) String status, Model model) {
        HashMap<String, Object> criteria = new HashMap<>(1);
        if (status == null) {
            model.addAttribute("pageUrlPrefix", "/admin/article?pageIndex");
        } else {
            criteria.put("status", status);
            model.addAttribute("pageUrlPrefix", "/admin/article?status=" + status + "&pageIndex");
        }
        PageInfo<Article> articlePageInfo = articleService.pageArticle(pageIndex, pageSize, criteria);
        model.addAttribute("pageInfo", articlePageInfo);
        return "Admin/Article/index";
    }
    /**
     * 后台添加文章页面显示
     *
     * @return
     */
    @RequestMapping(value = "/insert")
    public String insertArticleView(Model model) {
        List<Category> categoryList = categoryService.listCategory();
        List<Tag> tagList = tagService.listTag();
        model.addAttribute("categoryList", categoryList);
        model.addAttribute("tagList", tagList);
        return "Admin/Article/insert";
    }
    /**
     * 后台添加文章提交操作
     *
     * @param articleParam
     * @return
     */
    @RequestMapping(value = "/insertSubmit", method = RequestMethod.POST)
    public String insertArticleSubmit(HttpSession session, ArticleParam articleParam) {
        Article article = new Article();
        //用户ID
        User user = (User) session.getAttribute("user");
        if (user != null) {
            article.setArticleUserId(user.getUserId());
        }
        article.setArticleTitle(articleParam.getArticleTitle());
        //文章摘要
        int summaryLength = 150;
        String summaryText = HtmlUtil.cleanHtmlTag(articleParam.getArticleContent());
        if (summaryText.length() > summaryLength) {
            String summary = summaryText.substring(0, summaryLength);
            article.setArticleSummary(summary);
        } else {
            article.setArticleSummary(summaryText);
        }
        article.setArticleContent(articleParam.getArticleContent());
        article.setArticleStatus(articleParam.getArticleStatus());
        //填充分类
        List<Category> categoryList = new ArrayList<>();
        if (articleParam.getArticleChildCategoryId() != null) {
            categoryList.add(new Category(articleParam.getArticleParentCategoryId()));
        }
        if (articleParam.getArticleChildCategoryId() != null) {
            categoryList.add(new Category(articleParam.getArticleChildCategoryId()));
        }
        article.setCategoryList(categoryList);
        //填充标签
        List<Tag> tagList = new ArrayList<>();
        if (articleParam.getArticleTagIds() != null) {
            for (int i = 0; i < articleParam.getArticleTagIds().size(); i++) {
                Tag tag = new Tag(articleParam.getArticleTagIds().get(i));
                tagList.add(tag);
            }
        }
        article.setTagList(tagList);
        articleService.insertArticle(article);
        return "redirect:/admin/article";
    }
    /**
     * 删除文章
     *
     * @param id 文章ID
     */
    @RequestMapping(value = "/delete/{id}")
    public void deleteArticle(@PathVariable("id") Integer id) {
        articleService.deleteArticle(id);
    }
    /**
     * 编辑文章页面显示
     *
     * @param id
     * @return
     */
    @RequestMapping(value = "/edit/{id}")
    public ModelAndView editArticleView(@PathVariable("id") Integer id) {
        ModelAndView modelAndView = new ModelAndView();
        Article article = articleService.getArticleByStatusAndId(null, id);
        modelAndView.addObject("article", article);
        List<Category> categoryList = categoryService.listCategory();
        modelAndView.addObject("categoryList", categoryList);
        List<Tag> tagList = tagService.listTag();
        modelAndView.addObject("tagList", tagList);
        modelAndView.setViewName("Admin/Article/edit");
        return modelAndView;
    }
    /**
     * 编辑文章提交
     *
     * @param articleParam
     * @return
     */
    @RequestMapping(value = "/editSubmit", method = RequestMethod.POST)
    public String editArticleSubmit(ArticleParam articleParam) {
        Article article = new Article();
        article.setArticleId(articleParam.getArticleId());
        article.setArticleTitle(articleParam.getArticleTitle());
        article.setArticleContent(articleParam.getArticleContent());
        article.setArticleStatus(articleParam.getArticleStatus());
        //文章摘要
        int summaryLength = 150;
        String summaryText = HtmlUtil.cleanHtmlTag(article.getArticleContent());
        if (summaryText.length() > summaryLength) {
            String summary = summaryText.substring(0, summaryLength);
            article.setArticleSummary(summary);
        } else {
            article.setArticleSummary(summaryText);
        }
        //填充分类
        List<Category> categoryList = new ArrayList<>();
        if (articleParam.getArticleChildCategoryId() != null) {
            categoryList.add(new Category(articleParam.getArticleParentCategoryId()));
        }
        if (articleParam.getArticleChildCategoryId() != null) {
            categoryList.add(new Category(articleParam.getArticleChildCategoryId()));
        }
        article.setCategoryList(categoryList);
        //填充标签
        List<Tag> tagList = new ArrayList<>();
        if (articleParam.getArticleTagIds() != null) {
            for (int i = 0; i < articleParam.getArticleTagIds().size(); i++) {
                Tag tag = new Tag(articleParam.getArticleTagIds().get(i));
                tagList.add(tag);
            }
        }
        article.setTagList(tagList);
        articleService.updateArticleDetail(article);
        return "redirect:/admin/article";
    }
}
package com.znz.ssm.blog.controller.admin;
import com.znz.ssm.blog.entity.Category;
import com.znz.ssm.blog.service.ArticleService;
import com.znz.ssm.blog.service.CategoryService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.servlet.ModelAndView;
import java.util.List;
/**
 * @author znz
 */
@Controller
@RequestMapping("/admin/category")
public class BackCategoryController {
    @Autowired
    private ArticleService articleService;
    @Autowired
    private CategoryService categoryService;
    /**
     * 后台分类列表显示
     *
     * @return
     */
    @RequestMapping(value = "")
    public ModelAndView categoryList()  {
        ModelAndView modelandview = new ModelAndView();
        List<Category> categoryList = categoryService.listCategoryWithCount();
        modelandview.addObject("categoryList",categoryList);
        modelandview.setViewName("Admin/Category/index");
        return modelandview;
    }
    /**
     * 后台添加分类提交
     *
     * @param category
     * @return
     */
    @RequestMapping(value = "/insertSubmit",method = RequestMethod.POST)
    public String insertCategorySubmit(Category category)  {
        categoryService.insertCategory(category);
        return "redirect:/admin/category";
    }
    /**
     * 删除分类
     *
     * @param id
     * @return
     */
    @RequestMapping(value = "/delete/{id}")
    public String deleteCategory(@PathVariable("id") Integer id)  {
        //禁止删除有文章的分类
        int count = articleService.countArticleByCategoryId(id);
        if (count == 0) {
            categoryService.deleteCategory(id);
        }
        return "redirect:/admin/category";
    }
    /**
     * 编辑分类页面显示
     *
     * @param id
     * @return
     */
    @RequestMapping(value = "/edit/{id}")
    public ModelAndView editCategoryView(@PathVariable("id") Integer id)  {
        ModelAndView modelAndView = new ModelAndView();
        Category category =  categoryService.getCategoryById(id);
        modelAndView.addObject("category",category);
        List<Category> categoryList = categoryService.listCategoryWithCount();
        modelAndView.addObject("categoryList",categoryList);
        modelAndView.setViewName("Admin/Category/edit");
        return modelAndView;
    }
    /**
     * 编辑分类提交
     *
     * @param category 分类
     * @return 重定向
     */
    @RequestMapping(value = "/editSubmit",method = RequestMethod.POST)
    public String editCategorySubmit(Category category)  {
        categoryService.updateCategory(category);
        return "redirect:/admin/category";
    }
}

五,项目总结

目前在移互联网的冲击下,传统的互联网在线沟通的方式似乎已经处于消亡的边缘,替而代之的是现在火爆的即时聊天,在线视频等等工具。而这种通过语音和视频进行聊天沟通的方式虽然简洁方便,但更适合于个体间的一对一交流,虽然相寻找共同的社群群体来讲,如果想就某一主题进行持续性讨论,并自主发表自己的意见,传统的社区交流论坛形式仍然是不可或缺的。

在最早的时候,论坛社区仅是起到公布一些股市以及公司即时信息的作用,但随着时代的发展,现在的它,内容已经达到了无所不含的程度,上到国家大事、专业领域,下到日常生活,衣食住行,各式各样的交流论坛让人目不暇接,其适用范围的广泛使其成为了当今交流社区的核心。由静态到动态的发展让社区论坛[4]更好的实现了用户之间的交流。

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