前台代码
<div class="modal" id="avatar-modal" aria-hidden="true" aria-labelledby="avatar-modal-label" role="dialog" tabindex="-1"> <div class="modal-dialog modal-lg"> <div class="modal-content"> <form class="avatar-form" action="/upload/savePic" enctype="multipart/form-data" method="post"> <div class="modal-header"> <button class="close" data-dismiss="modal" type="button">×</button> <h4 class="modal-title" id="avatar-modal-label">更换头像</h4> </div> <div class="modal-body"> <div class="avatar-body"> <div class="avatar-upload"> <input class="avatar-src" name="avatar_src" type="hidden"> <input class="avatar-data" name="avatar_data"id="avatar_data" type="hidden"> <label for="avatarInput">图片上传</label> <input class="avatar-input" id="avatarInput" name="avatar_file" type="file"> </div> <div class="row"> <div class="col-md-9"> <div class="avatar-wrapper"></div> </div> <div class="col-md-3"> <div class="avatar-preview preview-lg"></div> <div class="avatar-preview preview-md"></div> <div class="avatar-preview preview-sm"></div> </div> </div> <div class="row avatar-btns"> <div class="col-md-9"> <div class="btn-group"> <button class="btn" data-method="rotate" data-option="-90" type="button" title="向左旋转90度"><i class="fa fa-undo"></i> 向左旋转</button> </div> <div class="btn-group"> <button class="btn" data-method="rotate" data-option="90" type="button" title="向右旋转90度"><i class="fa fa-repeat"></i> 向右旋转</button> </div> </div> <div class="col-md-3"> <input type="button" class="btn btn-success btn-block " value="保存修改" onclick="savePic()" /> </div> </div> </div> </div> </form> </div> </div> </div><div class="modal" id="avatar-modal" ari