我正在尝试使用渐进式图像在网站上加载。我是初学者，不知道如何获得渐进式图像！
基本上我们可以使用java将普通上传的图像转换为渐进式图像吗？如果是，请提供一些想法或任何参考。主要目标是渲染大图像。
谢谢
这是我的 servlet 的外观
包 com.throttle.images；
import java.io.BufferedInputStream;
import java.io.BufferedOutputStream;
import java.io.FileInputStream;
import java.io.IOException;
import javax.servlet.ServletException;
import javax.servlet.ServletOutputStream;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
/**
* Servlet implementation class ImagingServlet
*/
public class ImagingServlet extends HttpServlet{
private static final long serialVersionUID = 1L;
/**
* @see HttpServlet#HttpServlet()
*/
public ImagingServlet() {
super();
// TODO Auto-generated constructor stub
}
/**
* @see HttpServlet#doGet(HttpServletRequest request, HttpServletResponse response)
*/
protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
response.setContentType("image/jpg");
ServletOutputStream out;
out = response.getOutputStream();
String name = request.getParameter("name");
FileInputStream fin = new FileInputStream("system file path"+name);
System.out.println(name);
BufferedInputStream bin = new BufferedInputStream(fin);
BufferedOutputStream bout = new BufferedOutputStream(out);
int ch =0; ;
while((ch=bin.read())!=-1)
{
bout.write(ch);
bout.flush();
//out.flush();
//delay();
//response.flushBuffer();
}
}
/**
* @see HttpServlet#doPost(HttpServletRequest request, HttpServletResponse response)
*/
protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
// TODO Auto-generated method stub
}
void delay(){
for(int i=0;i<1000;i++){
for(int j=0;j<1000;j++){
;;
}
}
}
}