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java - 将字符串 imageData 返回到我的 jsp 上的图像

问题描述

我得到一个 imageData 值，例如，

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

我们如何将此图像字符串值获取到 Image 并将其设置在 HttpServletResponse 响应中并在 jsp 上获取它...

   <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 上显示我的那个图像。但如何？谢谢..

标签： javaspringspring-mvcjsp

解决方案

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