(2).后端页面
package com.jsxs.kumquat.controller; import com.alibaba.fastjson.JSONObject; import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper; import com.jsxs.kumquat.pojo.CkqnBlog; import com.jsxs.kumquat.pojo.CkqnUser; import com.jsxs.kumquat.service.CkqnBlogService; import com.jsxs.kumquat.utils.FileUtils; import org.springframework.stereotype.Controller; import org.springframework.ui.Model; import org.springframework.web.bind.annotation.*; import org.springframework.web.multipart.MultipartFile; import org.springframework.web.servlet.ModelAndView; import javax.annotation.Resource; import javax.servlet.http.HttpSession; import java.util.UUID; /** * <p> * 前端控制器 * </p> * * @author 吉士先生 * @since 2023-04-09 */ @Controller @RequestMapping("/article") public class CkqnBlogController { @Resource CkqnBlogService ckqnBlogService; @Resource HttpSession session; // 文章上传 @RequestMapping("/publish") public String publishArticle(CkqnBlog article) { CkqnUser user = (CkqnUser) session.getAttribute("loginUser"); // 1.作者信息 article.setAuthorId(user.getUid()); article.setAuthorName(user.getUsername()); article.setAuthorAvatar(user.getAvatar()); // 2.博客ID String replace = UUID.randomUUID().toString().replace("-", ""); article.setBid(replace); if (article.getTitle() == null) { System.out.println("标题为空?????????"); } boolean res = ckqnBlogService.save(article); if (res) { return "tipSuccess"; } return "tipFalse"; } // 文件上传 @RequestMapping("/image/upload") @ResponseBody public JSONObject imageUpload(@RequestParam("editormd-image-file") MultipartFile image) { JSONObject jsonObject = new JSONObject(); if (image != null) { String path = FileUtils.uploadFile(image); // 回调给 editor System.out.println(path); jsonObject.put("url", path); jsonObject.put("success", 1); jsonObject.put("message", "upload success!"); return jsonObject; } jsonObject.put("success", 0); jsonObject.put("message", "upload error!"); return jsonObject; } // 1.一篇详细文章 @RequestMapping("/get/{id}") public ModelAndView getArticleById(@PathVariable(name = "id") int id) { ModelAndView modelAndView = new ModelAndView(); CkqnBlog article = ckqnBlogService.getById(id); modelAndView.setViewName("WriteCenter/article"); if (article == null) { modelAndView.addObject("article", new CkqnBlog()); } modelAndView.addObject("article", article); return modelAndView; } // 开始修改 @RequestMapping("/update/editor/{authorId}/{bid}") public String updateArticleByUser(@PathVariable("authorId") String authorId, @PathVariable("bid") String bid, Model model) { // CkqnUser user = (CkqnUser)session.getAttribute("loginUser"); QueryWrapper<CkqnBlog> wrapper = new QueryWrapper<>(); // 查询uid CkqnBlog blog = ckqnBlogService.getOne(wrapper.eq("bid", bid)); System.out.println(authorId + " " + bid); // 2.查询作者 if (!blog.getAuthorId().equals(authorId)) { System.out.println("对不起,你在非法编辑"); // 直接注销账号 return "redirect:/index.html"; } // 3. 存放文章 model.addAttribute("blog", blog); // 4.没有重定向 return "WriteCenter/update"; } }
4.Aax 密码验证
需要引入js- 一个都不能变，注意路径
<link rel="stylesheet" th:href="@{/editor.md/css/examples/style.css}" /> <link rel="stylesheet" th:href="@{/editor.md/css/editormd.css}" /> <link rel="shortcut icon" href="https://pandao.github.io/editor.md/favicon.ico" type="image/x-icon" /> <script th:src="@{/Jquery/jquery-3.6.1.js}"></script> <script th:src="@{/editor.md/examples/js/jquery.min.js}"></script> <script th:src="@{/editor.md/lib/marked.min.js}"></script> <script th:src="@{/editor.md/lib/prettify.min.js}"></script> <script th:src="@{/editor.md/lib/raphael.min.js}"></script> <script th:src="@{/editor.md/lib/underscore.min.js}"></script> <script th:src="@{/editor.md/lib/sequence-diagram.min.js}"></script> <script th:src="@{/editor.md/lib/flowchart.min.js}"></script> <script th:src="@{/editor.md/lib/jquery.flowchart.min.js}"></script> <script th:src="@{/editor.md/editormd.js}"></script>
文章主题部分
<div id="test-editormd"> <textarea style="display:none;" th:text="${article.content}"></textarea> </div>
JS
<script type="text/javascript"> var testEditor; $(function () { testEditor = editormd.markdownToHTML("test-editormd", { width: "90%", height: 700, path: "/editor.md/lib/", preview: true, watch: true, editor: false, }) }) ! function (e, t, a) { function r() { for (var e = 0; e < s.length; e++) s[e].alpha <= 0 ? (t.body.removeChild(s[e].el), s.splice(e, 1)) : (s[ e].y--, s[e].scale += .004, s[e].alpha -= .013, s[e].el.style.cssText = "left:" + s[e].x + "px;top:" + s[e].y + "px;opacity:" + s[e].alpha + ";transform:scale(" + s[e].scale + "," + s[e] .scale + ") rotate(45deg);background:" + s[e].color + ";z-index:99999"); requestAnimationFrame(r) } function n() { var t = "function" == typeof e.onclick && e.onclick; e.onclick = function (e) { t && t(), o(e) } } function o(e) { var a = t.createElement("div"); a.className = "heart", s.push({ el: a, x: e.clientX - 5, y: e.clientY - 5, scale: 1, alpha: 1, color: c() }), t.body.appendChild(a) } function i(e) { var a = t.createElement("style"); a.type = "text/css"; try { a.appendChild(t.createTextNode(e)) } catch (t) { a.styleSheet.cssText = e } t.getElementsByTagName("head")[0].appendChild(a) } function c() { return "rgb(" + ~~(255 * Math.random()) + "," + ~~(255 * Math.random()) + "," + ~~(255 * Math .random()) + ")" } var s = []; e.requestAnimationFrame = e.requestAnimationFrame || e.webkitRequestAnimationFrame || e .mozRequestAnimationFrame || e.oRequestAnimationFrame || e.msRequestAnimationFrame || function (e) { setTimeout(e, 1e3 / 60) }, i( ".heart{width: 10px;height: 10px;position: fixed;background: #f00;transform: rotate(45deg);-webkit-transform: rotate(45deg);-moz-transform: rotate(45deg);}.heart:after,.heart:before{content: '';width: inherit;height: inherit;background: inherit;border-radius: 50%;-webkit-border-radius: 50%;-moz-border-radius: 50%;position: fixed;}.heart:after{top: -5px;}.heart:before{left: -5px;}" ), n(), r() }(window, document); </script>
全体文章
package com.jsxs.kumquat.controller; import org.springframework.web.bind.annotation.RequestMapping; import org.springframework.web.bind.annotation.RestController; /** * @Author Jsxs * @Date 2023/4/10 17:07 * @PackageName:com.jsxs.kumquat.controller * @ClassName: AjaxController * @Description: TODO * @Version 1.0 */ @RestController public class AjaxController { @RequestMapping("/a3") public String a3(String name,String pwd){ String msg=""; System.out.println(name); System.out.println(pwd); if (name!=null){ if ("吉士先生".equals(name)){ msg="OK"; }else { msg="Error"; } } if (pwd!=null){ if ("121788".equals(pwd)){ msg="OK"; }else { msg="Error"; } } return msg; } }
以上可以实现异步登入判断
(三)、知识点新发现
1. template包中创建包静态资源路径一样.
2. SpringBoot自定义400、500错误。只需要在template包下创建error包即可。
3. 加入我们要使用mybatis-plus那么条件构造其实际上就是对SQL的拼接操作。构造器的泛型是: 实体类
//1. 通过账户UserUid进行查找用户 @RequestMapping("/code") public String SelectByUserUid(){ // 1.定义条件构造器-> 这里的泛型是实体类 QueryWrapper<CkqnUser> wrapper = new QueryWrapper<>(); wrapper.eq("uid","root"); CkqnUser one = ckqnUserService.getOne(wrapper.eq("uid", "root")); return ""+one; }
4.我们在验证登入操作的时候，只需要根据username进行判断即可，因为这样可以减少对数据库的一次访问
//1. 通过账户UserUid进行查找用户 -> 可以减少对数据库的访问频次(可以减少对密码的查询) @PostMapping("/code") public String SelectByUserUid() throws Exception { // 1.定义条件构造器-> 这里的泛型是实体类 QueryWrapper<CkqnUser> wrapper = new QueryWrapper<>(); // 2.添加条件: 是否相等 wrapper.eq("uid","root"); // 3.执行查找数据的操作 CkqnUser ckqnUser = ckqnUserService.getOne(wrapper.eq("uid", "root")); // 4.optional检测是否为空 Optional<CkqnUser> optional = Optional.ofNullable(ckqnUser); // 5.假如为空直接抛出异常 optional.orElseThrow(()->new Exception("非常抱歉出现了空指针异常!!")); // 6.查看密码 String password = ckqnUser.getPassword(); CkqnUser ckqnUser1 = ckqnUserService.getOne(wrapper.eq("password", password)); if (ckqnUser1.equals(ckqnUser)){ return "index"; }else { return "login"; }
(四)、金橘社区前端设计
金橘社区
1. 渐变动态背景CSS .
<style> body { margin: 0; padding: 0; height: 100vh; display: flex; justify-content: center; align-items: center; background: linear-gradient(135deg, #34ac40, #2c8ae8, #dc47cd, #e7e373); background-size: 500%; animation: bgAnimation 6s linear infinite; } h1 { color: white; letter-spacing: 5px; } @keyframes bgAnimation { 0% { background-position: 0% 50%; } 50% { background-position: 100% 50%; } 100% { background-position: 0% 50%; } } </style>
2. sleep() 休眠的工具类
function sleep(numberMillis) { var now = new Date(); var exitTime = now.getTime() + numberMillis; while (true) { now = new Date(); if (now.getTime() > exitTime) return true; } }
3. 利用JS页面的跳转,我们一定要用异步跳转
// 这里一定要异步对其进行跳转页面 setTimeout(()=>{ document.location.href="two.html" },600)
