<img>标签，显示服务器图片

<img>标签，利用io流从服务器向浏览器写入图片

前提：

   D:/DevelopmentTool/apache-tomcat-8.5.14/webapps/pic/服务器该文件夹下存放了名字为001.jpg

   的图片

HTML页面：

   
<img style="width: 550px" 
  src="project/manager/picture?name=001.png&time=${currentTime}">
 说明：
   project/manager是服务器controller的地址
@Controller@RequestMapping("project/manager/")

   picture是controller里面往外写图片的方法的地址
@RequestMapping("picture")
  time=${currentTime}是为了对付浏览器缓存，
  ${currentTime}是从服务器上传过来的当前系统时间的值

服务器controller写法：
@Controller@RequestMapping("project/manager/")public class ProjectManagerController extends BaseController {     @RequestMapping("picture")    public void upload( HttpServletResponse response,String name) {        OutputStream os = null;        FileInputStream fis = null;        try {            os = response.getOutputStream();             fis = new FileInputStream("D:/DevelopmentTool/apache-tomcat-8.5.14/webapps/pic/"+name);            byte[] buffer = new byte[1024];            while(fis.read(buffer) != -1) {                os.write(buffer);            }        }catch (Exception e){        }        finally {            if(ValidateUtil.objectIsNotNull(os)){                try {                    os.flush();                    os.close();                    fis.close();                }catch (Exception e){                }            }        }    }
}