返回String imageData到我的JSP上的图像

Question

我得到了一个imageData值，

data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAASwAAACWCAYAAABkW7XSAAACB0lEQVR4nO3UMQ0AMAzAsPKHUpIbhX1TJB/   +c2V29wAUzO8AgFeGBWQYFpBhWECGYQEZhgVkGBaQYVhAhmEBGYYFZBgWkGFYQIZhARmGBWQYFpBhWECGYQEZhgVkGBaQYVhAhmEBGYYFZBgWkGFYQIZhARmGBWQYFpBhWECGYQEZhgVkGBaQYVhAhmEBGYYFZBgWkGFYQIZhARmGBWQYFpBhWECGYQEZhgVkGBaQYVhAhmEBGYYFZBgWkGFYQIZhARmGBWQYFpBhWECGYQEZhgVkGBaQYVhAhmEBGYYFZBgWkGFYQIZhARmGBWQYFpBhWECGYQEZhgVkGBaQYVhAhmEBGYYFZBgWkGFYQIZhARmGBWQYFpBhWECGYQEZhgVkGBaQYVhAhmEBGYYFZBgWkGFYQIZhARmGBWQYFpBhWECGYQEZhgVkGBaQYVhAhmEBGYYFZBgWkGFYQIZhARmGBWQYFpBhWECGYQEZhgVkGBaQYVhAhmEBGYYFZBgWkGFYQIZhARmGBWQYFpBhWECGYQEZhgVkGBaQYVhAhmEBGYYFZBgWkGFYQIZhARmGBWQYFpBhWECGYQEZhgVkGBaQYVhAhmEBGYYFZBgWkGFYQIZhARmGBWQYFpBhWECGYQEZhgVkGBaQYVhAhmEBGYYFZBgWkGFYQIZhARmGBWQYFpBhWECGYQEZF7C8Z2zone7OAAAAAElFTkSuQmCC

我们如何将图像的String值获取为Image并在HttpServletResponse响应中进行设置，并在jsp上获取它，例如...

   <div>
      <img src="${pageContext.request.contextPath}/user/profilepic.jsp" 
    width="200" height="200">
   </div> 

和控制器

@RequestMapping(value ="/profilepic", method = RequestMethod.GET)
public void profilePIC(HttpServletResponse response) throws Exception {
    response.setContentType("image/png");
             String imageData = //get image String value
             OutputStream outputStream = response.getOutputStream();

    //here i wan to return image on my jsp !!
    }

我想在jsp上显示该图像。但是如何？谢谢。