关于JS将图片回显问题，将byte[]转化为流，信息填入input框内

  <script>

        var For_photo = []
        var normal_data = new Object();
        var Userinfo = JSON.parse(sessionStorage.getItem('Userinformation'));
        for (var prop in Userinfo) {
            //$("[name='" + prop + "']").val(ForeignTeachers[prop]);//遍历了整个数据
            if (prop == "PHOTO") {
                //eval("For_photo." + prop + "='" + ForeignTeachers[prop] + "'");
                //For_photo.push(ForeignTeachers[prop])
                var str = arrayBufferToBase64(Userinfo[prop]);
                $("#" + prop).attr("src", 'data:image/png;base64,' + str);
            }
            else {
                //normal_data.push(ForeignTeachers[prop]);
                eval("normal_data." + prop + "='" + Userinfo[prop] + "'");
                $("[name='" + prop + "']").val(Userinfo[prop]);//遍历了整个数据
            }
        }

        //将byte[]转化为流
        function arrayBufferToBase64(buffer) {
            var binary = '';
            var bytes = new Uint8Array(buffer);
            var len = bytes.byteLength;
            for (var i = 0; i < len; i++) {
                binary += String.fromCharCode(bytes[i]);
            }
            return window.btoa(binary);
            return binary;
        }
        </script>

 关于C#后端传过来的byte[]，然后js转化流，然后显示图片.

   <div class="col-md-12" id="uploadForm">
                        <div class="form-group  col-md-6 " style="text-align:center">
                            <label class="col-sm-2 control-label">资料照片</label>
                            <div class="col-sm-6 fileinput fileinput-new" data-provides="fileinput" id="exampleInputUpload">
                                <div class="fileinput-new thumbnail" style=" 200px;height: auto;max-height:150px;">
                                    <img id='PHOTO' style=" 100%;height: auto;max-height: 140px;" src="~/Content/css/extra-images/noimage.png" alt="" />
                                </div>
                                <div class="fileinput-preview fileinput-exists thumbnail" style="max- 200px; max-height: 150px;"></div>
                                <div>
                                    <span class="btn btn-primary btn-file">
                                        <span class="fileinput-new">上传</span>
                                        <span class="fileinput-exists">更改</span>
                                        <input type="file" name="PHOTO" id="user_photo" accept="image/gif,image/jpeg,image/x-png" />
                                    </span>
                                    <a href="javascript:;" class="btn btn-warning fileinput-exists" data-dismiss="fileinput">Remove</a>
                                </div>
                            </div>
                        </div>

                    </div>