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SpringMVC vue实现文件上传
- 后台
- 前端
异步上传(后端springmvc加前端vue)
后台
代码语言:javascript复制采用springmvc,实现获取到相对路径和绝对路径存储为json传到前端作为新增到数据库里的数据
//文件上传
@PostMapping(value = "/upLoading")
@ResponseBody
public Result<HashMap<String,String>> upLoading(MultipartFile file,HttpServletRequest request){
System.out.println("进入文件上传");
//定义要返回的绝对路径和相对路径
String absolutePath=null;
String relativePath=null;
Result<HashMap<String,String>> result = new Result<HashMap<String,String>>();
//获得服务器所在路径
String path = request.getSession().getServletContext().getRealPath("/") file.getOriginalFilename();
//获得上传文件的文件名
String fileName=file.getOriginalFilename();
System.out.println(fileName);
//xxxxx.xxx
//UUID.randomUUID()
//UUID:随机生成一段字符串,16-18位由字母加数字拼接而成,保证10年不重复
fileName = UUID.randomUUID() fileName.substring(fileName.lastIndexOf("."));
System.out.println(fileName);
//设置绝对路径和文件存储路劲
absolutePath = "D:\ideaProjects\SSMApp\src\main\web\statics\uploadfiles\" fileName;
//设置相对文件路径
relativePath="statics\uploadfiles\" fileName;
System.out.println(path);
HashMap<String ,String> map=new HashMap<String, String>();
map.put("absolutePath",absolutePath);
map.put("relativePath",relativePath);
//保存文件
try {
file.transferTo(new File(absolutePath));
result.setResult(map);
result.setMessage("文件上传成功");
}catch (Exception exce){
result.setMessage("文件上传失败:" exce.getMessage());
result.setSuccess(false);
System.out.println(exce.getMessage());
}
return result;
}
前端
代码语言:javascript复制部分前端(重要实现前端部分)
<div class="item form-group"><!--for="name"-->
<label class="control-label col-md-3 col-sm-3 col-xs-12" >LOGO图片 <span class="required">*</span>
</label>
<div class="col-md-6 col-sm-6 col-xs-12"><!--type="file" -->
<input type="file" @change="upLoading($event)" v-model="params.file" class="form-control col-md-7 col-xs-12" name="logoPicPath" required="file" id="logoPicPath" accept="jpg,jpeg,png"/>
<span style="display: none" v-model="params.logoPicPath">
<span style="display: none" v-model="params.logoLocPath">
<span class="add-file-right-more">支持扩展名:jpg,jpeg,png</span>
${fileUploadError }
</div>
</div>
代码语言:javascript复制<script> new Vue({
params:{
logoPicPath:"", //相对路径 logoLocPath:"" //绝对路径 } }), methods:{
//文件上传 upLoading(even){
this.params.file=even.target.files[0]; console.log(this.params.file.name) console.log("进入文件上传") var forms = new FormData() forms.append("file",this.params.file,this.params.file.name); var configs = {
headers: {
"Content-Type": "multipart/form-data" } }; console.log(this.params.file); axios.post("/dev/upLoading",forms ,configs).then(res=>{
console.log(res) this.params.logoPicPath=res.data.result.relativePath; this.params.logoLocPath=res.data.result.absolutePath; //绝对 console.log(res) }) } } </script>
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