如何使用Java实现个人博客系统

这篇文章将为大家详细讲解有关如何使用Java实现个人博客系统，小编觉得挺实用的，因此分享给大家做个参考，希望大家阅读完这篇文章后可以有所收获。

运行环境： jdk8+Tomcat8.5+mysql5.7+IntelliJ idea+Maven

项目技术： SpringBoot+mybatis+redis+Vue+element ui

博客管理控制层：

  @Controllerpublic 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;         @GetMapping({"/", "/index", "index.html"})    public String index(httpservletRequest request) {        return this.page(request, 1);    }         @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";    }         @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";    }         @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";    }         @GetMapping({"/tag/{tagName}"})    public String tag(HttpServletRequest request, @PathVariable("tagName") String tagName) {        return tag(request, tagName, 1);    }         @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";    }         @GetMapping({"/category/{categoryName}"})    public String category(HttpServletRequest request, @PathVariable("categoryName") String categoryName) {        return category(request, categoryName, 1);    }         @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";    }         @GetMapping({"/search/{keyword}"})    public String search(HttpServletRequest request, @PathVariable("keyword") String keyword) {        return search(request, keyword, 1);    }         @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";    }          @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));    }}

管理员控制层：

 @Controller@RequestMapping("/admin")public class CategoryController {     @Resource    private CategoryService categoryService;         @GetMapping("/categories")    public String categoryPage(HttpServletRequest request) {        request.setAttribute("path", "categories");        return "admin/category";    }         @RequestMapping(value = "/categories/list", method = RequestMethod.GET)    @ResponseBody    public Result list(@RequestParam Map<String, Object> params) {        if (StringUtils.isEmpty(params.get("page")) || StringUtils.isEmpty(params.get("limit"))) {            return ResultGenerator.genFailResult("参数异常！");        }        PageQueryUtil pageUtil = new PageQueryUtil(params);        return ResultGenerator.genSuccessResult(categoryService.getBlogCategoryPage(pageUtil));    }         @RequestMapping(value = "/categories/save", method = RequestMethod.POST)    @ResponseBody    public Result save(@RequestParam("categoryName") String categoryName,                       @RequestParam("categoryIcon") String categoryIcon) {        if (StringUtils.isEmpty(categoryName)) {            return ResultGenerator.genFailResult("请输入分类名称！");        }        if (StringUtils.isEmpty(categoryIcon)) {            return ResultGenerator.genFailResult("请选择分类图标！");        }        if (categoryService.saveCategory(categoryName, categoryIcon)) {            return ResultGenerator.genSuccessResult();        } else {            return ResultGenerator.genFailResult("分类名称重复");        }    }          @RequestMapping(value = "/categories/update", method = RequestMethod.POST)    @ResponseBody    public Result update(@RequestParam("categoryId") Integer categoryId,                         @RequestParam("categoryName") String categoryName,                         @RequestParam("categoryIcon") String categoryIcon) {        if (StringUtils.isEmpty(categoryName)) {            return ResultGenerator.genFailResult("请输入分类名称！");        }        if (StringUtils.isEmpty(categoryIcon)) {            return ResultGenerator.genFailResult("请选择分类图标！");        }        if (categoryService.updateCategory(categoryId, categoryName, categoryIcon)) {            return ResultGenerator.genSuccessResult();        } else {            return ResultGenerator.genFailResult("分类名称重复");        }    }          @RequestMapping(value = "/categories/delete", method = RequestMethod.POST)    @ResponseBody    public Result delete(@RequestBody Integer[] ids) {        if (ids.length < 1) {            return ResultGenerator.genFailResult("参数异常！");        }        if (categoryService.deleteBatch(ids)) {            return ResultGenerator.genSuccessResult();        } else {            return ResultGenerator.genFailResult("删除失败");        }    } }

处理管理员界面请求:

 @Controller@RequestMapping("/admin")public class AdminController {     @Resource    private AdminUserService adminUserService;    @Resource    private BlogService blogService;    @Resource    private CategoryService categoryService;    @Resource    private TagService tagService;    @Resource    private CommentService commentService;          @GetMapping({"/login"})    public String login() {        return "admin/login";    }         @GetMapping({"", "/", "/index", "/index.html"})    public String index(HttpServletRequest request) {        request.setAttribute("path", "index");        request.setAttribute("categoryCount", categoryService.getTotalCategories());        request.setAttribute("blogCount", blogService.getTotalBlogs());        request.setAttribute("tagCount", tagService.getTotalTags());        request.setAttribute("commentCount", commentService.getTotalComments());        return "admin/index";    }         @PostMapping(value = "/login")    public String login(@RequestParam("userName") String userName,                        @RequestParam("password") String password,                        @RequestParam("verifyCode") String verifyCode,                        HttpSession session) {        if (StringUtils.isEmpty(verifyCode)) {            session.setAttribute("errORMsg", "验证码不能为空");            return "admin/login";        }        if (StringUtils.isEmpty(userName) || StringUtils.isEmpty(password)) {            session.setAttribute("errorMsg", "用户名或密码不能为空");            return "admin/login";        }        String kaptchaCode = session.getAttribute("verifyCode") + "";        if (StringUtils.isEmpty(kaptchaCode) || !verifyCode.equals(kaptchaCode)) {            session.setAttribute("errorMsg", "验证码错误");            return "admin/login";        }        AdminUser adminUser = adminUserService.login(userName, password);        if (adminUser != null) {            session.setAttribute("loginUser", adminUser.getNickName());            session.setAttribute("loginUserId", adminUser.getAdminUserId());            //session过期时间设置为7200秒 即两小时            //session.setMaxInactiveInterval(60 * 60 * 2);            return "redirect:/admin/index";        } else {            session.setAttribute("errorMsg", "登陆失败");            return "admin/login";        }    }         @GetMapping("/profile")    public String profile(HttpServletRequest request) {        Integer loginUserId = (int) request.getSession().getAttribute("loginUserId");        AdminUser adminUser = adminUserService.getUserDetailById(loginUserId);        if (adminUser == null) {            return "admin/login";        }        request.setAttribute("path", "profile");        request.setAttribute("loginUserName", adminUser.getLoginUserName());        request.setAttribute("nickName", adminUser.getNickName());        return "admin/profile";    }         @PostMapping("/profile/password")    @ResponseBody    public String passwordUpdate(HttpServletRequest request, @RequestParam("originalPassword") String originalPassword,                                 @RequestParam("newPassword") String newPassword) {        if (StringUtils.isEmpty(originalPassword) || StringUtils.isEmpty(newPassword)) {            return "参数不能为空";        }        Integer loginUserId = (int) request.getSession().getAttribute("loginUserId");        if (adminUserService.updatePassword(loginUserId, originalPassword, newPassword)) {            //修改成功后清空session中的数据，前端控制跳转至登录页            request.getSession().removeAttribute("loginUserId");            request.getSession().removeAttribute("loginUser");            request.getSession().removeAttribute("errorMsg");            return "success";        } else {            return "修改失败";        }    }         @PostMapping("/profile/name")    @ResponseBody    public String nameUpdate(HttpServletRequest request, @RequestParam("loginUserName") String loginUserName,                             @RequestParam("nickName") String nickName) {        if (StringUtils.isEmpty(loginUserName) || StringUtils.isEmpty(nickName)) {            return "参数不能为空";        }        Integer loginUserId = (int) request.getSession().getAttribute("loginUserId");        if (adminUserService.updateName(loginUserId, loginUserName, nickName)) {            return "success";        } else {            return "修改失败";        }    }         @GetMapping("/logout")    public String logout(HttpServletRequest request) {        request.getSession().removeAttribute("loginUserId");        request.getSession().removeAttribute("loginUser");        request.getSession().removeAttribute("errorMsg");        return "admin/login";    }}

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