html页面（表单采用bootStrap）
js部分:
//更换头像时把上传的图片post方式到控制器 <script type="text/javascript"> function upload() { var files = $('input[name="fileField"]').prop('files');//获取到文件列表 if (files.length == 0) { alert('请选择文件'); return; } else { var reader = new FileReader();//新建一个FileReader reader.readAsText(files[0], "UTF-8");//读取文件 reader.onload = function (evt) { //读取完文件之后会回来这里 var fileString = evt.target.result; //post方式上传图片到控制器 var date = {"file": fileString}; $.post("editProfile", date).success(function (result) { alert("ok"); }); } } } </script>
表单部分
<div class="col-xs-12 col-sm-4 text-center"> <ul class="list-group"> <li class="list-group-item text-left"> <span class="entypo-user"></span> 个人资料 </li> <li class="list-group-item text-center"> <img src="${user.avatar}" alt="" <!-- ${user.avatar}为头像url地址 --> class="img-circle img-responsive img-profile"> </li> <li class="list-group-item text-right" style="text-align: center"> <div id="drag-and-drop-zone" class="uploader"> <form action="" method="post" enctype="multipart/form-data"> <span class="btn btn-success btn-file"> 更换头像 <span class="glyphicon glyphicon-picture" aria-hidden="true"></span> <input type="file" name="fileField" class="file" id="fileField" size="28" onchange="upload()"/> </span> </form> </div> </li> </ul> </div>
控制器部分:
@RequestMapping("editProfile") public ModelAndView editProfile(HttpServletRequest request,@CurrentUser User usaer){ String file=request.getParameter("file"); ModelAndView mv=new ModelAndView(); return mv; }