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')