SpringMVC上传图片代码实例

 
 
 
 
 
 
修改头像
 
 
   上传头像图片 
 
（仅限上传单张10M以下png、jpg图片）

 
 

 $("#btn_upload").click(function(){ $("#InputFile").trigger("click"); openUploads("InputFile"); }); function openUploads(id){ $("#"+id).unbind().change(function(){ var formdata = new FormData(); formdata.append('file',$("#"+id)[0].files[0]); //获取图片信息 //console.log($("#"+id)[0].files[0]); $.ajax({ type: 'POST', url: "http://localhost:8078/lifeTrackDB/UploadUserAvatars", data:formdata, cache:false, dataType: 'json', processData:false, contentType:false, success : function (result) { console.log(result); if (result.status) { //$('#'+id).attr('src','images/UserAvatars/'+result.message); alert(result.message); } else { $.alert(result.message,''); } } }); }); }

 @RequestMapping(value="/UploadUserAvatars") @ResponseBody public void UploadUserAvatars(HttpServletRequest request,HttpServletResponse response, @RequestParam(value = "file") List files) throws Exception{ String path=System.getProperty("user.dir"); if (null != files || 0 != files.size()) { for(MultipartFile file:files) { //System.err.println("文件名：" + file.getOriginalFilename() + "---contentType：" + file.getContentType()); file.transferTo(new File(path+"/UserAvatars/"+file.getOriginalFilename())); response.getWriter().write("{\"status\": true, \"code\": \"200\",\"message\":\"上传成功\"}"); } }else { //response.getWriter().write("handleCallback({\"status\": false, \"code\": \"200\",\"message\":\"上传失败\"})"); response.getWriter().write("{\"status\": false, \"code\": \"200\",\"message\":\"上传失败\"}"); } }