Spring Boot项目学习13之帖子评论模块

package top.picacho.bbs.controller.rest; import org.springframework.stereotype.Controller; import org.springframework.util.CollectionUtils; import org.springframework.util.StringUtils; import org.springframework.web.bind.annotation.*; import top.picacho.bbs.common.Constants; import top.picacho.bbs.common.ServiceResultEnum; import top.picacho.bbs.entity.BBSPost; import top.picacho.bbs.entity.BBSPostCategory; import top.picacho.bbs.entity.BBSUser; import top.picacho.bbs.service.BBSPostCategoryService; import top.picacho.bbs.service.BBSPostCommentService; import top.picacho.bbs.service.BBSPostService; import top.picacho.bbs.service.BBSUserService; import top.picacho.bbs.util.PageResult; import top.picacho.bbs.util.Result; import top.picacho.bbs.util.ResultGenerator; import javax.annotation.Resource; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpSession; import java.util.Date; import java.util.List; @Controller public class BBSPostController { @Resource private BBSPostCategoryService bbsPostCategoryService; @Resource private BBSPostService bbsPostService; @Resource private BBSUserService bbsUserService; @Resource private BBSPostCommentService bbsPostCommentService; /** * 跳转至发帖页面 * @param request * @return */ @GetMapping("/addPostPage") public String addPostPage(HttpServletRequest request) { List<BBSPostCategory> bbsPostCategories = bbsPostCategoryService.getBBSPostCategories(); if (CollectionUtils.isEmpty(bbsPostCategories)) { return "error/error_404"; } //将分类数据封装到request域中 request.setAttribute("bbsPostCategories", bbsPostCategories); return "jie/add"; } /** * 添加一条帖子数据 */ @PostMapping("/addPost") @ResponseBody public Result addPost(@RequestParam("postTitle") String postTitle, @RequestParam("postCategoryId") Integer postCategoryId, @RequestParam("postContent") String postContent, @RequestParam("verifyCode") String verifyCode, HttpSession httpSession) { if (!StringUtils.hasLength(postTitle)) { return ResultGenerator.genFailResult("postTitle参数错误"); } if (null == postCategoryId || postCategoryId < 0) { return ResultGenerator.genFailResult("postCategoryId参数错误"); } BBSPostCategory bbsPostCategory = bbsPostCategoryService.selectById(postCategoryId); if (null == bbsPostCategory) { return ResultGenerator.genFailResult("postCategoryId参数错误"); } if (!StringUtils.hasLength(postContent)) { return ResultGenerator.genFailResult("postContent参数错误"); } if (postTitle.trim().length() > 32) { return ResultGenerator.genFailResult("标题过长"); } if (postContent.trim().length() > 100000) { return ResultGenerator.genFailResult("内容过长"); } String kaptchaCode = httpSession.getAttribute(Constants.VERIFY_CODE_KEY) + ""; if (!StringUtils.hasLength(kaptchaCode) || !verifyCode.equals(kaptchaCode)) { return ResultGenerator.genFailResult(ServiceResultEnum.LOGIN_VERIFY_CODE_ERROR.getResult()); } BBSUser bbsUser = (BBSUser) httpSession.getAttribute(Constants.USER_SESSION_KEY); BBSPost bbsPost = new BBSPost(); bbsPost.setPublishUserId(bbsUser.getUserId()); bbsPost.setPostTitle(postTitle); bbsPost.setPostContent(postContent); bbsPost.setPostCategoryId(postCategoryId); bbsPost.setPostCategoryName(bbsPostCategory.getCategoryName()); if (bbsPostService.savePost(bbsPost) > 0) { httpSession.removeAttribute(Constants.VERIFY_CODE_KEY);//清空session中的验证码信息 return ResultGenerator.genSuccessResult(); } else { return ResultGenerator.genFailResult("请求失败，请检查参数及账号是否有操作权限"); } } /** * 跳转帖子详情页 * @param request * @param postId * @param commentPage * @return */ @GetMapping("detail/{postId}") public String postDetail(HttpServletRequest request, @PathVariable(value = "postId") Long postId, @RequestParam(value = "commentPage", required = false, defaultValue = "1") Integer commentPage) { List<BBSPostCategory> bbsPostCategories = bbsPostCategoryService.getBBSPostCategories(); if (CollectionUtils.isEmpty(bbsPostCategories)) { return "error/error_404"; } //将分类数据封装到request域中 request.setAttribute("bbsPostCategories", bbsPostCategories); // 帖子内容 BBSPost bbsPost = bbsPostService.getBBSPostForDetail(postId); if (bbsPost == null) { return "error/error_404"; } request.setAttribute("bbsPost", bbsPost); // 发帖用户信息 BBSUser bbsUser = bbsUserService.getUserById(bbsPost.getPublishUserId()); if (bbsUser == null) { return "error/error_404"; } request.setAttribute("bbsUser", bbsUser); // todo 是否收藏了本贴 // 本周热议的帖子 request.setAttribute("hotTopicBBSPostList", bbsPostService.getHotTopicBBSPostList()); // todo 评论数据 PageResult commentsPage = bbsPostCommentService.getCommentsByPostId(postId, commentPage); request.setAttribute("commentsPage", commentsPage); return "jie/detail"; } /** * 跳转至编辑页 * @param request * @param postId * @return */ @GetMapping("editPostPage/{postId}") public String editPostPage(HttpServletRequest request, @PathVariable(value = "postId") Long postId) { BBSUser bbsUser = (BBSUser) request.getSession().getAttribute(Constants.USER_SESSION_KEY); List<BBSPostCategory> bbsPostCategories = bbsPostCategoryService.getBBSPostCategories(); if (CollectionUtils.isEmpty(bbsPostCategories)) { return "error/error_404"; } //将分类数据封装到request域中 request.setAttribute("bbsPostCategories", bbsPostCategories); if (null == postId || postId < 0) { return "error/error_404"; } BBSPost bbsPost = bbsPostService.getBBSPostById(postId); if (bbsPost == null) { return "error/error_404"; } if (!bbsUser.getUserId().equals(bbsPost.getPublishUserId())) { request.setAttribute("message", "非本人发帖，无权限修改"); return "error/error"; } request.setAttribute("bbsPost", bbsPost); request.setAttribute("postId", postId); return "jie/edit"; } /** * 修改帖子 * @param postId * @param postTitle * @param postCategoryId * @param postContent * @param verifyCode * @param httpSession * @return */ @PostMapping("/editPost") @ResponseBody public Result editPost(@RequestParam("postId") Long postId, @RequestParam("postTitle") String postTitle, @RequestParam("postCategoryId") Integer postCategoryId, @RequestParam("postContent") String postContent, @RequestParam("verifyCode") String verifyCode, HttpSession httpSession) { BBSUser bbsUser = (BBSUser) httpSession.getAttribute(Constants.USER_SESSION_KEY); if (null == postId || postId < 0) { return ResultGenerator.genFailResult("postId参数错误"); } BBSPost temp = bbsPostService.getBBSPostById(postId); if (temp == null) { return ResultGenerator.genFailResult("po