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Vue3 使用v-md-editor如何动态上传图片了

前端代码：

|  | <v-md-editor  |
|  | :autofocus="true" |
|  | v-model="blog.content" |
|  | height="510px" |
|  | placeholder="请输入内容" |
|  | left-toolbar="undo redo clear | h bold italic strikethrough quote | ul ol table hr | image | save " |
|  | :disabled-menus="[]" |
|  |  @upload-image="handleUploadImage" |
|  |  > |
|  | v-md-editor> |

按我以上配置后，你把图片插入或者从本地拖入，就可以激发upload-image绑定的函数，我这的名称为：handleUploadImage

先看看这个图片编辑时的图片吧

大致流程图

在setup看看这个函数（这是我写好的）

files：表示你拖入的图片文件，可以是多个，也可以是一个

insertImage：url就表示你需要回显的地址；desc就是名称；markdown语法：![desc](url)

|  | function handleUploadImage(event,insertImage,files){ |
|  | for(let i in files){ |
|  | const formData = new FormData(); |
|  |  formData.append('file', files[i]); |
|  |  proxy.$axios.post(`${proxy.PATH}/uploadImg`,formData).then( |
|  | response => { |
|  | insertImage({ |
|  | url:response.data, |
|  | desc: 'DESC', |
|  |  }) |
|  |  }, |
|  | error => { |
|  | console.log('请求失败了',error.message) |
|  |  } |
|  |  ) |
|  |  } |
|  | } |

有没有人和我一样去看过这个file长什么样子

可以看到我上面发送了一个请求到后端，标签带上了这个文件；就是下面这段代码

|  |  proxy.$axios.post(`${proxy.PATH}/uploadImg`,formData).then( |
|  | response => { |
|  | insertImage({ |
|  | url:response.data, |
|  | desc: 'DESC', |
|  |  }) |
|  |  }, |
|  | error => { |
|  | console.log('请求失败了',error.message) |
|  |  } |
|  |  ) |

后端的代码：

请求的位置

|  | package com.mhy.blog.controller; |
|  | import com.mhy.blog.utils.ConstUtils; |
|  | import com.mhy.blog.utils.FileUtils; |
|  | import org.springframework.web.bind.annotation.PostMapping; |
|  | import org.springframework.web.bind.annotation.RequestParam; |
|  | import org.springframework.web.bind.annotation.RestController; |
|  | import org.springframework.web.multipart.MultipartFile; |
|  | import java.util.Objects; |
|  |  |
|  | @RestController |
|  | public class FileController { |
|  | @PostMapping("/uploadImg") |
|  | public String img(@RequestParam(value = "file") MultipartFile file){ |
|  | try{ |
|  | return FileUtils.uploadImg(file, |
|  |  ConstUtils.SAVE\_IMG\_PATH, |
|  |  Objects.requireNonNull(file.getOriginalFilename()), |
|  |  ConstUtils.REQUEST\_IMG\_PATH); |
|  |  }catch (Exception e){ |
|  |  e.printStackTrace(); |
|  | return ConstUtils.IMG\_UPLOAD\_FAILURE; |
|  |  } |
|  |  } |
|  | } |
|  |  |

注意里面有我定制的一些常量：

|  | public static String SAVE\_IMG\_PATH = "D:\\JAVAIDEA\\Blog\\java\\blog\\src\\main\\resources\\public\\img\\"; |
|  |  |
|  | public static String REQUEST\_IMG\_PATH = "http://localhost:8888/blog/img/"; |
|  | public static String IMG\_UPLOAD\_FAILURE = "图片上传失败"; |

看看这个工具方法：FileUtils.uploadImg

|  | package com.mhy.blog.utils; |
|  |  |
|  | import org.springframework.web.multipart.MultipartFile; |
|  |  |
|  | import java.io.File; |
|  | import java.util.Random; |
|  | import java.util.UUID; |
|  |  |
|  |  |
|  | public class FileUtils { |
|  |  |
|  | public static String uploadImg(MultipartFile file, String path1, String name, String path2){ |
|  | // 通过uuid产生一个图片名字 |
|  | String uuid = UUID.randomUUID().toString().trim().replaceAll("-",""); |
|  | String imgName = uuid + name; |
|  | // 这是我随机选择了一文件夹 这里只是我个人爱好 |
|  | String code = Integer.toString(new Random().nextInt(5) + 1); |
|  | // 拼接路径 |
|  | String imgPath = path1 + "img" + code + "\\"; |
|  | String requestPath = path2 + "img" + code + "/"; |
|  |  |
|  | try { |
|  | // 上传操作 |
|  | File imgFile = new File(imgPath, imgName); |
|  |  file.transferTo(imgFile); |
|  |  } catch (Exception e) { |
|  |  e.printStackTrace(); |
|  |  } |
|  | // 返回图片的路就 |
|  | return requestPath + imgName; |
|  |  } |
|  | } |

后端图片的位置

测试：

顺便附带上我的main.js吧

|  | // markdown 的引入 |
|  | import VueMarkdownEditor from '@kangc/v-md-editor' |
|  | import '@kangc/v-md-editor/lib/style/base-editor.css' |
|  | import VMdpreview from '@kangc/v-md-editor/lib/preview' |
|  | import vuepressTheme from '@kangc/v-md-editor/lib/theme/vuepress.js' |
|  | import '@kangc/v-md-editor/lib/theme/style/vuepress.css' |
|  |  |
|  | // github主题 |
|  | import githubTheme from '@kangc/v-md-editor/lib/theme/github.js' |
|  | import '@kangc/v-md-editor/lib/theme/style/github.css' |
|  | // 引入 highlight核心代码 |
|  | import hljs from 'highlight.js/lib/core' |
|  | // 引入代码高亮 |
|  | import json from 'highlight.js/lib/languages/json' |
|  | import java from 'highlight.js/lib/languages/java' |
|  | import javascript from 'highlight.js/lib/languages/javascript' |
|  | import c from 'highlight.js/lib/languages/c' |
|  | import cpp from 'highlight.js/lib/languages/cpp' |
|  | import armasm from 'highlight.js/lib/languages/armasm' |
|  | // 按需引入 代码高亮 |
|  | hljs.registerLanguage('json',json) |
|  | hljs.registerLanguage('java',java) |
|  | hljs.registerLanguage('javascript',javascript) |
|  | hljs.registerLanguage('c',c) |
|  | hljs.registerLanguage('cpp',cpp) |
|  | hljs.registerLanguage('armasm',armasm) |
|  |  |
|  | // 配置 |
|  | VMdpreview.use(vuepressTheme) |
|  | VueMarkdownEditor.use(githubTheme,{ |
|  | Hljs: hljs, |
|  | extend(md){ |
|  | // 扩展插件 |
|  |  } |
|  | }) |
|  |  |
|  | const app = createApp(App) |
|  | app.use(VueMarkdownEditor) |
|  | app.use(VMdpreview) |
|  | app.mount('#app') |

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