1、数据库设计
article:文章表

| 字段 | | 备注 || ------- | -------- | ------- || id | int | 文章的唯一ID || author | varchar | 作者 || title | varchar | 标题 || content | longtext | 文章的内容 |
见表SQL:

CREATE TABLE article (
id int(10) NOT NULL AUTO_INCREMENT COMMENT ‘int文章的唯一ID’,
author varchar(50) NOT NULL COMMENT ‘作者’,
title varchar(100) NOT NULL COMMENT ‘标题’,
content longtext NOT NULL COMMENT ‘文章的内容’,
 PRIMARY KEY (id)
 ) ENGINE=InnoDB DEFAULT CHARSET=utf8


2、基础项目搭建
2.1、建一个SpringBoot项目配置

spring:
 datasource:
 username: root
 password: 123456
 #?serverTimezone=UTC解决时区的报错
 url: jdbc:mysql://localhost:3306/springboot?serverTimezone=UTC&useUnicode=true&characterEncoding=utf-8
 driver-class-name: com.mysql.cj.jdbc.Driver


 src/main/java

 **/*.xml

 true




2.2、实体类:

//文章类
 @Data
 @NoArgsConstructor
 @AllArgsConstructor
 public class Article implements Serializable {
 private int id; //文章的唯一ID
 private String author; //作者名
 private String title; //标题
 private String content; //文章的内容
 }
 2.3、mapper接口:@Mapper
 @Repository
 public interface ArticleMapper {
 //查询所有的文章
 List 
  queryArticles(); 
 
 //新增一个文章 
 
 int addArticle(Article article); 
 
 //根据文章id查询文章 
 
 Article getArticleById(int id); 
 
 //根据文章id删除文章 
 
 int deleteArticleById(int id); 
 
 } 
 <?xml version="1.0" encoding="UTF-8"?> select * from article select * from article where id = #{id} insert into article (author,title,content) values (#{author},#{title},#{content}); delete from article where id = #{id} 既然已经提供了 myBatis 的映射配置文件,自然要告诉 spring boot 这些文件的位置** 
mybatis:
 mapper-locations: classpath:com/kuang/mapper/*.xml
 type-aliases-package: com.kuang.pojo


编写一个Controller测试下,是否ok;

3、文章编辑整合(重点)
3.1、导入 editor.md 资源 ,删除多余文件

3.2、编辑文章页面 editor.html、需要引入 jQuery;


秦疆'Blog

标题:



作者:




3.3、编写Controller,进行跳转,以及保存文章

@Controller
 @RequestMapping("/article")
 public class ArticleController {
 @GetMapping("/toEditor")
 public String toEditor(){
 return “editor”;
 }
 @PostMapping("/addArticle")
 public String addArticle(Article article){
 articleMapper.addArticle(article);
 return “editor”;
 }
 }


图片上传问题
1、前端js中添加配置

//图片上传
 imageUpload : true,
 imageFormats : [“jpg”, “jpeg”, “gif”, “png”, “bmp”, “webp”],
 imageUploadURL : “/article/file/upload”, // //这个是上传图片时的访问地址
 2、后端请求,接收保存这个图片, 需要导入 FastJson 的依赖
//博客图片上传问题
 @RequestMapping("/file/upload")
 @ResponseBody
 public JSONObject fileUpload(@RequestParam(value = “editormd-image-file”, required = true) MultipartFile file, HttpServletRequest request) throws IOException {
 //上传路径保存设置
 //获得SpringBoot当前项目的路径:System.getProperty(“user.dir”)
 String path = System.getProperty(“user.dir”)+"/upload/";
 //按照月份进行分类:
 Calendar instance = Calendar.getInstance();
 String month = (instance.get(Calendar.MONTH) + 1)+“月”;
 path = path+month;
 File realPath = new File(path);
 if (!realPath.exists()){
 realPath.mkdir();
 }
 //上传文件地址
 System.out.println(“上传文件保存地址:”+realPath);
 //解决文件名字问题:我们使用uuid;
 String filename = “ks-”+UUID.randomUUID().toString().replaceAll("-", “”);
 //通过CommonsMultipartFile的方法直接写文件(注意这个时候)
 file.transferTo(new File(realPath +"/"+ filename));
 //给editormd进行回调
 JSONObject res = new JSONObject();
 res.put(“url”,"/upload/"+month+"/"+ filename);
 res.put(“success”, 1);
 res.put(“message”, “upload success!”);
 return res;
 }
 3、解决文件回显显示的问题,设置虚拟目录映射!在我们自己拓展的MvcConfig中进行配置即可!@Configuration
 public class MyMvcConfig implements WebMvcConfigurer {
 // 文件保存在真实目录/upload/下,
 // 访问的时候使用虚路径/upload,比如文件名为1.png,就直接/upload/1.png就ok了。
 @Override
 public void addResourceHandlers(ResourceHandlerRegistry registry) {
 registry.addResourceHandler("/upload/**")
 .addResourceLocations(“file:”+System.getProperty(“user.dir”)+"/upload/");
 }
 }
 表情包问题
 自己手动下载,emoji 表情包,放到图片路径下:修改editormd.js文件
// Emoji graphics files url path
 editormd.emoji = {
 path : “…/editormd/plugins/emoji-dialog/emoji/”,
 ext : “.png”
 };
 4、文章展示
 4.1、Controller 中增加方法@GetMapping("/{id}")
 public String show(@PathVariable(“id”) int id,Model model){
 Article article = articleMapper.getArticleById(id);
 model.addAttribute(“article”,article);
 return “article”;
 }


4.2、编写页面 article.html


作者:


5、可能会出现的问题 上传图片,未找到上传数据

public class BinaryUploader {

public static final State save(HttpServletRequest request,
							   Map<String, Object> conf) {

	if (!ServletFileUpload.isMultipartContent(request)) {
		return new BaseState(false, AppInfo.NOT_MULTIPART_CONTENT);
	}


	try {
		//将request 转化成 MultipartHttpServletRequest
		MultipartHttpServletRequest multipartRequest = (MultipartHttpServletRequest) request;
		MultipartFile multipartFile = multipartRequest.getFile(conf.get("fieldName").toString());
		if(multipartFile==null){
			return new BaseState(false, AppInfo.NOTFOUND_UPLOAD_DATA);
		}

		String savePath = (String) conf.get("savePath");
		String originFileName = multipartFile.getOriginalFilename();
		String suffix = FileType.getSuffixByFilename(originFileName);

		originFileName = originFileName.substring(0,
				originFileName.length() - suffix.length());
		savePath = savePath + suffix;

		long maxSize = ((Long) conf.get("maxSize")).longValue();

		if (!validType(suffix, (String[]) conf.get("allowFiles"))) {
			return new BaseState(false, AppInfo.NOT_ALLOW_FILE_TYPE);
		}

		savePath = PathFormat.parse(savePath, originFileName);

		//此处为springboot中自定义 资源上传的硬盘路径,可以根据自己需求再controller中读取自定义配置设置
		String uploadPath = "";
		if(request.getAttribute("uploadPath")!=null){
			uploadPath = (String)request.getAttribute("uploadPath");
		}

		String physicalPath = uploadPath + savePath;

		InputStream is = multipartFile.getInputStream();
		State storageState = StorageManager.saveFileByInputStream(is,
				physicalPath, maxSize);
		is.close();

		if (storageState.isSuccess()) {
			storageState.putInfo("url",  PathFormat.format(savePath));
			storageState.putInfo("type", suffix);
			storageState.putInfo("original", originFileName + suffix);
		}

		return storageState;
	} catch (IOException e) {
	}
	return new BaseState(false, AppInfo.IO_ERROR);
}

private static boolean validType(String type, String[] allowTypes) {
	List<String> list = Arrays.asList(allowTypes);

	return list.contains(type);
}

}
重新编译后打包,我们再来测试一下;

6、测试
重启项目,浏览器地址栏输入http://localhost:8080/,访问进行测试!大功告成!