import java.io.File;import java.io.FileInputStream;import java.io.IOException;import java.io.InputStream;import java.io.OutputStream;import javax.servlet.ServletException;import javax.servlet.http.HttpServlet;import javax.servlet.http.HttpServletRequest;import javax.servlet.http.HttpServletResponse;//图片压缩public class Demo2 extends HttpServlet { ???public void doGet(HttpServletRequest request, HttpServletResponse response) ???????????throws ServletException, IOException { ???????//通知浏览器打开一副图片 ???????response.setHeader("content-type", "image/jpeg"); ???????InputStream is = new FileInputStream(new File("D:/TOOL/MyEclipseSpace/day04/WebRoot/images/cc.jpg")); ???????OutputStream os = response.getOutputStream(); ???????byte[] buf = new byte[1024]; ???????int len = 0; ???????while((len = is.read(buf)) > 0) ???????{ ???????????os.write(buf,0,len); ???????} ???????is.close(); ???????os.close(); ???}}HTTP请求头图片打开
原文地址：http://blog.51cto.com/357712148/2104337