import java.io.ByteArrayOutputStream;import java.io.IOException;import java.io.PrintWriter;import java.util.zip.GZIPOutputStream;import javax.servlet.ServletException;import javax.servlet.http.HttpServlet;import javax.servlet.http.HttpServletRequest;import javax.servlet.http.HttpServletResponse;//压缩public class Dmo1 extends HttpServlet {    public void doGet(HttpServletRequest request, HttpServletResponse response)            throws ServletException, IOException {        String data = "bbbbbbbbbbbaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa";        System.out.println("压缩前" + data.length());        // 以下代码完成将String类型压缩到byte[]中        ByteArrayOutputStream bout = new ByteArrayOutputStream();        GZIPOutputStream gout = new GZIPOutputStream(bout);        gout.write(data.getBytes());        gout.flush();        gout.close();        // 取出压缩后的数据        byte[] buf = bout.toByteArray();        System.out.println("压缩后" + buf.length);        // 将压缩后的数据输出到浏览器        response.setHeader("content-encoding", "gzip");        response.setHeader("content-length", buf.length + "");        // 服务端以字节方式输出        response.getOutputStream().write(buf);    }}

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