javaweb图片的显示

@RequestMapping(value="showImg")

@ResponseBody

public void ShowImg(HttpServletRequest request,HttpServletResponse response) throws IOException{

//String imgFile = request.getParameter("imgFile"); //文件名

// String path= UrlUtil.getValue("goodsImg");//这里是存放图片的文件夹地址

String path = ConfigUtil.getValue("file_upload_url");

String imgFile = "无标题.png";

FileInputStream fileIs=null;

try {

fileIs = new FileInputStream(path+"/"+imgFile);

} catch (Exception e) {

Logger.error(this.getClass(), e);

return;

}

int i=fileIs.available(); //得到文件大小

byte data[]=new byte[i];

fileIs.read(data); //读数据

response.setContentType("image.png"); //设置返回的文件类型

OutputStream outStream=response.getOutputStream(); //得到向客户端输出二进制数据的对象

outStream.write(data); //输出数据

outStream.flush();

outStream.close();

fileIs.close();

}

var src = address + "/basevalue/showImg";

$("#logo").attr("src",src);