java IO流读取图片供前台显示代码分享

java;">/**    * IO流读取图片 by:long    * @return    */@RequestMapping(value = "/IoReadImage/{imgName}", method = RequestMethod.GET)   public String IoReadImage(@PathVariable String imgName,HttpServletRequest request,HttpServletResponse response) throws IOException {	ServletOutputStream out = null;	FileInputStream ips = null;	try {		//获取图片存放路径 		String imgPath = Constans.FOLDER_IMAGE + imgName;		ips = new FileInputStream(new File(imgPath));		response.setContentType("multipart/form-data");		out = response.getOutputStream();		//读取文件流 		int len = 0;		byte[] buffer = new byte[1024 * 10];		while ((len = ips.read(buffer)) != -1){			out.write(buffer,0,len);		}		out.flush();	}	catch (Exception e){		e.printStackTrace();	}	finally {		out.close();		ips.close();	}	return null;}

<span style="white-space:pre;"> </span><div style="float: left;">      <#--${model.userDatil.photo} 为数据库存放的文件名称-->      <img src="${ctx}/userInfo/IoReadImage/${model.userDatil.photo}" id="npcImg" width="125" height="148"/>      <input type="hidden" id="photo" name="photo"/>     </div> 

var npcName = $('#npcImg').data('val'); var img = document.getElementById("npcImg"); img.src = '/userInfo/IoReadImage/'+npcName; 

$('#npcImg').attr('src','/userInfo/IoReadImage/'+npcName);