Java项目:清新论坛系统(java+SSM+mysql+maven+tomcat)

一、项目简述

功能：本系统分用户前台和管理员后台。 用户前台主要功能有： 用户注册 用户登录 浏览帖子 回复帖子 修改个人资料 管理员后台的功能有： 管理论坛版块 用户管理 回复管理；

二、项目运行

环境配置： Jdk1.8 + Tomcat8.5 + mysql + Eclispe (IntelliJ IDEA,Eclispe,MyEclispe,Sts 都支持)

项目技术： JSP +Spring + SpringMVC + MyBatis + html+ css + JavaScript + JQuery + Ajax + layui+ maven等等。

处理管理员界面请求：

 

/**
 * 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;


    /**
     * 处理登录请求
     *
     * @return java.lang.String
     */
    @GetMapping({"/login"})
    public String login() {
        return "admin/login";
    }

    /**
     * 主页
     *
     * @param request http请求
     * @return java.lang.String
     */
    @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";
    }

    /**
     * 登录界面
     *
     * @param userName   用户名
     * @param password   密码
     * @param verifyCode 验证码
     * @param session    session
     * @return java.lang.String
     */
    @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";
        }
    }

    /**
     * 修改个人信息
     *
     * @param request http请求
     * @return java.lang.String
     */
    @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";
    }

    /**
     * 修改密码
     *
     * @param request          http请求
     * @param originalPassword 原始密码
     * @param newPassword      新密码
     * @return java.lang.String
     */
    @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";
        }
    }

    /**
     * 修改登录名，昵称
     *
     * @param request       http请求
     * @param loginUserName 登录名
     * @param nickName      昵称
     * @return java.lang.String
     */
    @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";
        }
    }

    /**
     * 管理员退出
     *
     * @param request http请求
     * @return java.lang.String
     */
    @GetMapping("/logout")
    public String logout(HttpServletRequest request) {
        request.getSession().removeAttribute("loginUserId");
        request.getSession().removeAttribute("loginUser");
        request.getSession().removeAttribute("errorMsg");
        return "admin/login";
    }
}

博客控制层：

/**
 * 博客控制层
 */
@Controller
@RequestMapping("/admin")
public class BlogController {

    @Resource
    private BlogService blogService;
    @Resource
    private CategoryService categoryService;

    /**
     * 博客列表
     *
     * @param params 参数
     * @return com.hbu.myblog.util.Result
     */
    @GetMapping("/blogs/list")
    @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(blogService.getBlogsPage(pageUtil));
    }


    /**
     * @param request http请求
     * @return java.lang.String
     */
    @GetMapping("/blogs")
    public String list(HttpServletRequest request) {
        request.setAttribute("path", "blogs");
        return "admin/blog";
    }

    /**
     * @param request http请求
     * @return java.lang.String
     */
    @GetMapping("/blogs/edit")
    public String edit(HttpServletRequest request) {
        request.setAttribute("path", "edit");
        request.setAttribute("categories", categoryService.getAllCategories());
        return "admin/edit";
    }

    /**
     * @param request http请求
     * @param blogId  博客id
     * @return java.lang.String
     */
    @GetMapping("/blogs/edit/{blogId}")
    public String edit(HttpServletRequest request, @PathVariable("blogId") Long blogId) {
        request.setAttribute("path", "edit");
        Blog blog = blogService.getBlogById(blogId);
        if (blog == null) {
            return "error/error_400";
        }
        request.setAttribute("blog", blog);
        request.setAttribute("categories", categoryService.getAllCategories());
        return "admin/edit";
    }

    /**
     * 添加文章
     *
     * @param blogTitle      文章标题
     * @param blogSummary    摘要
     * @param blogCategoryId 类别
     * @param blogTags       标签
     * @param blogContent    内容
     * @param blogStatus     草稿，发布
     * @param enableComment  可否评论
     * @return com.hbu.myblog.util.Result
     */
    @PostMapping("/blogs/save")
    @ResponseBody
    public Result save(@RequestParam("blogTitle") String blogTitle,
                       @RequestParam(name = "blogSummary", required = false) String blogSummary,
                       @RequestParam("blogCategoryId") Integer blogCategoryId,
                       @RequestParam("blogTags") String blogTags,
                       @RequestParam("blogContent") String blogContent,
                       @RequestParam("blogStatus") Byte blogStatus,
                       @RequestParam("enableComment") Byte enableComment) {
        if (StringUtils.isEmpty(blogTitle)) {
            return ResultGenerator.genFailResult("请输入文章标题");
        }
        if (blogTitle.trim().length() > 150) {
            return ResultGenerator.genFailResult("标题过长");
        }
        if (StringUtils.isEmpty(blogTags)) {
            return ResultGenerator.genFailResult("请输入文章标签");
        }
        if (blogTags.trim().length() > 150) {
            return ResultGenerator.genFailResult("标签过长");
        }
        if (blogSummary.trim().length() > 375) {
            return ResultGenerator.genFailResult("摘要过长");
        }
        if (StringUtils.isEmpty(blogContent)) {
            return ResultGenerator.genFailResult("请输入文章内容");
        }
        if (blogTags.trim().length() > 100000) {
            return ResultGenerator.genFailResult("文章内容过长");
        }
        Blog blog = new Blog();
        blog.setBlogTitle(blogTitle);
        blog.setBlogSummary(blogSummary);
        blog.setBlogCategoryId(blogCategoryId);
        blog.setBlogTags(blogTags);
        blog.setBlogContent(blogContent);
        blog.setBlogStatus(blogStatus);
        blog.setEnableComment(enableComment);
        String saveBlogResult = blogService.saveBlog(blog);
        if ("success".equals(saveBlogResult)) {
            return ResultGenerator.genSuccessResult("添加成功");
        } else {
            return ResultGenerator.genFailResult(saveBlogResult);
        }
    }

    /**
     * 修改文章
     *
     * @param blogId         文章ID
     * @param blogTitle      文章标题
     * @param blogSummary    摘要
     * @param blogCategoryId 类别
     * @param blogTags       标签
     * @param blogContent    内容
     * @param blogStatus     草稿，发布
     * @param enableComment  可否评论
     * @return com.hbu.myblog.util.Result
     */
    @PostMapping("/blogs/update")
    @ResponseBody
    public Result update(@RequestParam("blogId") Long blogId,
                         @RequestParam("blogTitle") String blogTitle,
                         @RequestParam(name = "blogSummary", required = false) String blogSummary,
                         @RequestParam("blogCategoryId") Integer blogCategoryId,
                         @RequestParam("blogTags") String blogTags,
                         @RequestParam("blogContent") String blogContent,
                         @RequestParam("blogStatus") Byte blogStatus,
                         @RequestParam("enableComment") Byte enableComment) {
        if (StringUtils.isEmpty(blogTitle)) {
            return ResultGenerator.genFailResult("请输入文章标题");
        }
        if (blogTitle.trim().length() > 150) {
            return ResultGenerator.genFailResult("标题过长");
        }
        if (StringUtils.isEmpty(blogTags)) {
            return ResultGenerator.genFailResult("请输入文章标签");
        }
        if (blogTags.trim().length() > 150) {
            return ResultGenerator.genFailResult("标签过长");
        }
        if (blogSummary.trim().length() > 375) {
            return ResultGenerator.genFailResult("摘要过长");
        }
        if (StringUtils.isEmpty(blogContent)) {
            return ResultGenerator.genFailResult("请输入文章内容");
        }
        if (blogTags.trim().length() > 100000) {
            return ResultGenerator.genFailResult("文章内容过长");
        }
        Blog blog = new Blog();
        blog.setBlogId(blogId);
        blog.setBlogTitle(blogTitle);
        blog.setBlogSummary(blogSummary);
        blog.setBlogCategoryId(blogCategoryId);
        blog.setBlogTags(blogTags);
        blog.setBlogContent(blogContent);
        blog.setBlogStatus(blogStatus);
        blog.setEnableComment(enableComment);
        String updateBlogResult = blogService.updateBlog(blog);
        if ("success".equals(updateBlogResult)) {
            return ResultGenerator.genSuccessResult("修改成功");
        } else {
            return ResultGenerator.genFailResult(updateBlogResult);
        }
    }


    /**
     * 根据id的之删除文章
     *
     * @param ids 要删除文章id列表
     * @return com.hbu.myblog.util.Result
     */
    @PostMapping("/blogs/delete")
    @ResponseBody
    public Result delete(@RequestBody Integer[] ids) {
        if (ids.length < 1) {
            return ResultGenerator.genFailResult("参数异常！");
        }
        if (blogService.deleteBatch(ids)) {
            return ResultGenerator.genSuccessResult();
        } else {
            return ResultGenerator.genFailResult("删除失败");
        }
    }

}

错误异常控制层：

/**
 * 错误异常控制层
 */
@Controller
public class ErrorPageController implements ErrorController {

    private static ErrorPageController errorPageController;

    @Autowired
    private ErrorAttributes errorAttributes;

    private final static String ERROR_PATH = "/error";

    public ErrorPageController(ErrorAttributes errorAttributes) {
        this.errorAttributes = errorAttributes;
    }

    public ErrorPageController() {
        if (errorPageController == null) {
            errorPageController = new ErrorPageController(errorAttributes);
        }
    }

    /**
     * @param request
     * @return org.springframework.web.servlet.ModelAndView
     */
    @RequestMapping(value = ERROR_PATH, produces = "text/html")
    public ModelAndView errorHtml(HttpServletRequest request) {
        HttpStatus status = getStatus(request);
        if (HttpStatus.BAD_REQUEST == status) {
            return new ModelAndView("error/error_400");
        } else if (HttpStatus.NOT_FOUND == status) {
            return new ModelAndView("error/error_404");
        } else {
            return new ModelAndView("error/error_5xx");
        }
    }

    /**
     * @param request
     */
    @RequestMapping(value = ERROR_PATH)
    @ResponseBody
    public ResponseEntity<Map<String, Object>> error(HttpServletRequest request) {
        Map<String, Object> body = getErrorAttributes(request, getTraceParameter(request));
        HttpStatus status = getStatus(request);
        return new ResponseEntity<Map<String, Object>>(body, status);
    }

    @Override
    public String getErrorPath() {
        return ERROR_PATH;
    }


    /**
     * @param request
     * @return boolean
     */
    private boolean getTraceParameter(HttpServletRequest request) {
        String parameter = request.getParameter("trace");
        if (parameter == null) {
            return false;
        }
        return !"false".equals(parameter.toLowerCase());
    }

    /**
     * @param request
     * @param includeStackTrace
     */
    protected Map<String, Object> getErrorAttributes(HttpServletRequest request, boolean includeStackTrace) {
        WebRequest webRequest = new ServletWebRequest(request);
        return this.errorAttributes.getErrorAttributes(webRequest, includeStackTrace);
    }

    /**
     * @param request
     * @return org.springframework.http.HttpStatus
     */
    private HttpStatus getStatus(HttpServletRequest request) {
        Integer statusCode = (Integer) request
                .getAttribute("javax.servlet.error.status_code");
        if (statusCode != null) {
            try {
                return HttpStatus.valueOf(statusCode);
            } catch (Exception ex) {
            }
        }
        return HttpStatus.INTERNAL_SERVER_ERROR;
    }
}