Java 实战项目锤炼之朴素风格个人博客系统的实现流程

/**
 * 博客信息
 */
@Controller
public class MyblogController {
    //    public static String theme = "default";
    public static String theme = "amaze";
    @Resource
    private BlogService blogService;
    @Resource
    private TagService tagService;
    @Resource
    private CommentService commentService;
    @Resource
    private ConfigService configService;
    @Resource
    private CategoryService categoryService;
 
    /**
     * 首页
     *
     * @param request http请求
     * @return java.lang.String
     */
    @GetMapping({"/", "/index", "index.html"})
    public String index(HttpServletRequest request) {
        return this.page(request, 1);
    }
 
    /**
     * 首页（带页码）
     *
     * @param request http请求
     * @param pageNum 页码
     * @return java.lang.String
     */
    @GetMapping({"/page/{pageNum}"})
    public String page(HttpServletRequest request, @PathVariable("pageNum") int pageNum) {
        PageResult blogPageResult = blogService.getBlogsForIndexPage(pageNum);
        if (blogPageResult == null) {
            return "error/error_404";
        }
        request.setAttribute("blogPageResult", blogPageResult);
        request.setAttribute("newBlogs", blogService.getBlogListForIndexPage(1));
        request.setAttribute("hotBlogs", blogService.getBlogListForIndexPage(0));
        request.setAttribute("hotTags", tagService.getBlogTagCountForIndex());
        request.setAttribute("pageName", "首页");
        request.setAttribute("configurations", configService.getAllConfigs());
        return "blog/" + theme + "/index";
    }
 
    /**
     * Categories页面(包括分类数据和标签数据)
     *
     * @param request http请求
     * @return java.lang.String
     */
    @GetMapping({"/categories"})
    public String categories(HttpServletRequest request) {
        request.setAttribute("hotTags", tagService.getBlogTagCountForIndex());
        request.setAttribute("categories", categoryService.getAllCategories());
        request.setAttribute("pageName", "分类页面");
        request.setAttribute("configurations", configService.getAllConfigs());
        return "blog/" + theme + "/category";
    }
 
    /**
     * 详情页
     *
     * @param request     http请求
     * @param blogId      博客id
     * @param commentPage 评论页
     * @return java.lang.String
     */
    @GetMapping({"/blog/{blogId}", "/article/{blogId}"})
    public String detail(HttpServletRequest request, @PathVariable("blogId") Long blogId, @RequestParam(value = "commentPage", required = false, defaultValue = "1") Integer commentPage) {
        BlogDetailVO blogDetailVO = blogService.getBlogDetail(blogId);
        if (blogDetailVO != null) {
            request.setAttribute("blogDetailVO", blogDetailVO);
            request.setAttribute("commentPageResult", commentService.getCommentPageByBlogIdAndPageNum(blogId, commentPage));
        }
        request.setAttribute("pageName", "详情");
        request.setAttribute("configurations", configService.getAllConfigs());
        return "blog/" + theme + "/detail";
    }
 
    /**
     * 标签列表页
     *
     * @param request http请求
     * @param tagName 标签名称
     * @return java.lang.String
     */
    @GetMapping({"/tag/{tagName}"})
    public String tag(HttpServletRequest request, @PathVariable("tagName") String tagName) {
        return tag(request, tagName, 1);
    }
 
    /**
     * 标签列表页（带页码）
     *
     * @param request http请求
     * @param tagName 标签名称
     * @param page    页码
     * @return java.lang.String
     */
    @GetMapping({"/tag/{tagName}/{page}"})
    public String tag(HttpServletRequest request, @PathVariable("tagName") String tagName, @PathVariable("page") Integer page) {
        PageResult blogPageResult = blogService.getBlogsPageByTag(tagName, page);
        request.setAttribute("blogPageResult", blogPageResult);
        request.setAttribute("pageName", "标签");
        request.setAttribute("pageUrl", "tag");
        request.setAttribute("keyword", tagName);
        request.setAttribute("newBlogs", blogService.getBlogListForIndexPage(1));
        request.setAttribute("hotBlogs", blogService.getBlogListForIndexPage(0));
        request.setAttribute("hotTags", tagService.getBlogTagCountForIndex());
        request.setAttribute("configurations", configService.getAllConfigs());
        return "blog/" + theme + "/list";
    }
 
    /**
     * 分类列表页
     *
     * @param request      http请求
     * @param categoryName 类别名称
     * @return java.lang.String
     */
    @GetMapping({"/category/{categoryName}"})
    public String category(HttpServletRequest request, @PathVariable("categoryName") String categoryName) {
        return category(request, categoryName, 1);
    }
 
    /**
     * 分类列表页（带页码）
     *
     * @param request      http请求
     * @param categoryName 类别名称
     * @param page         页码
     * @return java.lang.String
     */
    @GetMapping({"/category/{categoryName}/{page}"})
    public String category(HttpServletRequest request, @PathVariable("categoryName") String categoryName, @PathVariable("page") Integer page) {
        PageResult blogPageResult = blogService.getBlogsPageByCategory(categoryName, page);
        request.setAttribute("blogPageResult", blogPageResult);
        request.setAttribute("pageName", "分类");
        request.setAttribute("pageUrl", "category");
        request.setAttribute("keyword", categoryName);
        request.setAttribute("newBlogs", blogService.getBlogListForIndexPage(1));
        request.setAttribute("hotBlogs", blogService.getBlogListForIndexPage(0));
        request.setAttribute("hotTags", tagService.getBlogTagCountForIndex());
        request.setAttribute("configurations", configService.getAllConfigs());
        return "blog/" + theme + "/list";
    }
 
    /**
     * 搜索列表页
     *
     * @param request http请求
     * @param keyword 关键词
     * @return java.lang.String
     */
    @GetMapping({"/search/{keyword}"})
    public String search(HttpServletRequest request, @PathVariable("keyword") String keyword) {
        return search(request, keyword, 1);
    }
 
    /**
     * 搜索列表页（带页码）
     *
     * @param request http请求
     * @param keyword 关键词
     * @param page    页码
     * @return java.lang.String
     */
    @GetMapping({"/search/{keyword}/{page}"})
    public String search(HttpServletRequest request, @PathVariable("keyword") String keyword, @PathVariable("page") Integer page) {
        PageResult blogPageResult = blogService.getBlogsPageBySearch(keyword, page);
        request.setAttribute("blogPageResult", blogPageResult);
        request.setAttribute("pageName", "搜索");
        request.setAttribute("pageUrl", "search");
        request.setAttribute("keyword", keyword);
        request.setAttribute("newBlogs", blogService.getBlogListForIndexPage(1));
        request.setAttribute("hotBlogs", blogService.getBlogListForIndexPage(0));
        request.setAttribute("hotTags", tagService.getBlogTagCountForIndex());
        request.setAttribute("configurations", configService.getAllConfigs());
        return "blog/" + theme + "/list";
    }
 
 
    /**
     * 评论留言
     *
     * @param request     http请求
     * @param session     session
     * @param blogId      博客id
     * @param verifyCode  验证码
     * @param commentator 评论者昵称
     * @param email       邮箱
     * @param websiteUrl  留言者的网站
     * @param commentBody 评论内容
     * @return com.hbu.myblog.util.Result
     */
    @PostMapping(value = "/blog/comment")
    @ResponseBody
    public Result comment(HttpServletRequest request, HttpSession session,
                          @RequestParam Long blogId, @RequestParam String verifyCode,
                          @RequestParam String commentator, @RequestParam String email,
                          @RequestParam String websiteUrl, @RequestParam String commentBody) {
        if (StringUtils.isEmpty(verifyCode)) {
            return ResultGenerator.genFailResult("验证码不能为空");
        }
        String kaptchaCode = session.getAttribute("verifyCode") + "";
        if (StringUtils.isEmpty(kaptchaCode)) {
            return ResultGenerator.genFailResult("非法请求");
        }
        if (!verifyCode.equals(kaptchaCode)) {
            return ResultGenerator.genFailResult("验证码错误");
        }
        String ref = request.getHeader("Referer");
        if (StringUtils.isEmpty(ref)) {
            return ResultGenerator.genFailResult("非法请求");
        }
        if (null == blogId || blogId < 0) {
            return ResultGenerator.genFailResult("非法请求");
        }
        if (StringUtils.isEmpty(commentator)) {
            return ResultGenerator.genFailResult("请输入称呼");
        }
        if (StringUtils.isEmpty(email)) {
            return ResultGenerator.genFailResult("请输入邮箱地址");
        }
        if (!PatternUtil.isEmail(email)) {
            return ResultGenerator.genFailResult("请输入正确的邮箱地址");
        }
        if (StringUtils.isEmpty(commentBody)) {
            return ResultGenerator.genFailResult("请输入评论内容");
        }
        if (commentBody.trim().length() > 200) {
            return ResultGenerator.genFailResult("评论内容过长");
        }
        BlogComment comment = new BlogComment();
        comment.setBlogId(blogId);
        comment.setCommentator(MyBlogUtils.cleanString(commentator));
        comment.setEmail(email);
        if (PatternUtil.isURL(websiteUrl)) {
            comment.setWebsiteUrl(websiteUrl);
        }
        comment.setCommentBody(MyBlogUtils.cleanString(commentBody));
        return ResultGenerator.genSuccessResult(commentService.addComment(comment));
    }
}