layui 图片上传+表单提交+ Spring MVC

Layui 的上传是最常用的, 不可或缺, 记录一下代码, 以后复制都能用!!

1.前端HTML:

修改头像

    

        
        
点击上传图片，或将图片拖拽到此处
    


    

        
        

    

2.前端js:

3.页面展示:

4.后台SpringMVC 接受:
/**

• 个人信息上传
• @return {Result}

*/
@RequestMapping(value = "/upload/headImg", method = {RequestMethod.POST})
@ResponseBody
public Object headImg(@RequestParam(value="file",required=false) MultipartFile file, HttpServletRequest request, HttpServletResponse response) throws Exception {

if (SecurityUtils.getSubject().isAuthenticated() == false) {
    return "redirect:/backEnd/login";
}
String prefix="";
String dateStr="";
//保存上传
 OutputStream out = null;
InputStream fileInput=null;
try{
    if(file!=null){
        String originalName = file.getOriginalFilename();
        prefix=originalName.substring(originalName.lastIndexOf(".")+1);
         dateStr = format.format(new Date());
        String filepath = request.getServletContext().getRealPath("/static") + uploadDir + dateStr + "." + prefix;
        filepath = filepath.replace("\\", "/");
        File files=new File(filepath);
        //打印查看上传路径
        System.out.println(filepath);
        if(!files.getParentFile().exists()){
            files.getParentFile().mkdirs();
        }
        file.transferTo(files);
    }
}catch (Exception e){
}finally{
    try {
        if(out!=null){
            out.close();
        }
        if(fileInput!=null){
            fileInput.close();
        }
    } catch (IOException e) {
    }
}
Map map2=new HashMap<>();
Map map=new HashMap<>();
map.put("code",0);
map.put("msg","");
map.put("data",map2);
map2.put("src","../../../static"+uploadDir + dateStr + "." + prefix);
return map;

}

5.关于表单请求, 正常使用layui的表单上传就可以了.. 这里就不写了, 太简单了, 我其它博客有写,请去翻阅,嗯 ,就这样.......