最近没事刚好联系下vue+springboot前段后分离的项目、用上了图片上传功能、记录一下。
前端待提交的表单部分代码
<el-form-item label="封面图片">
<el-upload v-model="dataForm.title"
class="avatar-uploader"
:limit="1"
list-type="picture-card"
:on-preview="handlePictureCardPreview"
multiple
:http-request="uploadFile"
:on-remove="handleRemove"
:on-change='changeUpload'
:file-list="images">
<i class="el-icon-plus"></i>
</el-upload>
</el-form-item>el-upload里面的元素解释：
- on-preview:点击文件列表中已上传的文件时的事件
- on-remove:删除文件时候调用的方法
- on-change:文件状态改变时的事件，添加文件、上传成功和上传失败时都会被调用
- file-list:上传的文件列表或者默认回显的数据展示渲染
retrun和data
return {
images: [{name: 'food.jpg', url: '/file/upload/202211/12/0u5cbpnmbnw.jpg'}],
imageUrl: '',
fileList: [], // 文件上传数据（多文件合一）
dialogImageUrl: '',
dialogVisible: false,
options: [],
content: '',
editorOption: {},
visible: false,
dataForm: {
id: 0,
title: '',
content: '',
bz: ''
},
tempKey: -666666 // 临时key, 用于解决tree半选中状态项不能传给后台接口问题. # 待优化
}预览图片和上传图片以及删除图片
changeUpload: function(file, fileList) {//预览图片
this.fileList = fileList;
},
uploadFile(file){
},
handleRemove(file, fileList) {
},
handlePictureCardPreview(file) {
this.dialogImageUrl = file.url;
this.dialogVisible = true;
}, 这里我是用fomrData对象进行提交的、因为只需要上传一张单张封面图片、还有添加其他的一些表单内容进去
// 表单提交
dataFormSubmit () {
const form = new FormData()// FormData 对象
form.append('file', this.fileList);
form.append('title', this.dataForm.title);
form.append('content', this.$refs.text.value);
this.$refs['dataForm'].validate((valid) => {
if (valid) {
this.$http({
url: this.$http.adornUrl(`/sys/inform/${!this.dataForm.id ? 'save' : 'update'}`),
method: 'post',
data: form
}).then(({data}) => {
if (data && data.code === 0) {
this.$message({
message: '操作成功',
type: 'success',
duration: 1500,
onClose: () => {
this.visible = false
this.$emit('refreshDataList')
}
})
} else {
this.$message.error(data.msg)
}
})
}
})
}后台的话通过HttpServletRequest request--WebUtils
.getNativeRequest(request, MultipartHttpServletRequest.class)来获取文件请求并解析文件到服务器或本地
@RequestMapping(value = "sys/file/save", method = {RequestMethod.POST, RequestMethod.GET})
@Transactional
public R save(HttpServletRequest request) {
String classify = request.getParameter("classify");
MultipartHttpServletRequest multipartRequest = WebUtils
.getNativeRequest(request, MultipartHttpServletRequest.class);
String fileName = "";
if (multipartRequest != null) {
Iterator<String> names = multipartRequest.getFileNames();
while (names.hasNext()) {
List<MultipartFile> files = multipartRequest.getFiles(names.next());
if (files != null && files.size() > 0) {
for (MultipartFile file : files) {
fileName = file.getOriginalFilename();
String SUFFIX = FileUtil.getFileExt(fileName);
File uFile = new File();
uFile.setFileName(fileName);
uFile.setClassify(classify);
uFile.setCreateTime(new Date());
uFile.setFileType(SUFFIX);
String uuid = FileUtil.uuid();
try {
uFile.setPath(uploadFile(uuid,file) +uuid+"."+SUFFIX);
} catch (IOException e) {
e.printStackTrace();
}
fileService.save(uFile);
}
}
}
}
return R.ok();
}上传文件到本地的静态方法
public static String uploadFile(String uuid, MultipartFile file) throws IllegalStateException, IOException {
String defaultUrl = MyFileConfig.getFilePath();
String Directory = java.io.File.separator ;
String realUrl = defaultUrl + Directory;
java.io.File realFile = new java.io.File(realUrl);
if (!realFile.exists() && !realFile.isDirectory()) {
realFile.mkdirs();
}
String fullFile = realUrl + uuid + "."+FileUtil.getFileExt(file.getOriginalFilename());
file.transferTo(new java.io. File(fullFile));
String relativePlanUrl = Directory;
return relativePlanUrl.replaceAll("\\", "/");
}到此这篇关于Vue+Element+Springboot图片上传的实现示例的文章就介绍到这了,更多相关Vue+Element+Springboot图片上传内容请搜索编程网以前的文章或继续浏览下面的相关文章希望大家以后多多支持编程网！
