Servlet压缩(gzip)测试

package com.gyarmy.demo4;

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;

public class ZipServlet extends HttpServlet {

	/**
	 * The doGet method of the servlet. <br>
	 *
	 * This method is called when a form has its tag value method equals to get.
	 * 
	 * @param request
	 *            the request send by the client to the server
	 * @param response
	 *            the response send by the server to the client
	 * @throws ServletException
	 *             if an error occurred
	 * @throws IOException
	 *             if an error occurred
	 */
	public void doGet(HttpServletRequest request, HttpServletResponse response)
			throws ServletException, IOException {

		// gzip压缩测试
		String myData = "www.gyarmy.com";
		byte[] bytes = myData.getBytes();
		System.out.println("压缩前:"+bytes.length);
		
		//压缩并输出
		ByteArrayOutputStream bArray = new ByteArrayOutputStream();
		GZIPOutputStream gos = new GZIPOutputStream(bArray);
		gos.write(bytes);
		gos.close(); //写入到输出流
		
		byte[] b = bArray.toByteArray();
		
		//浏览器设置
		response.setHeader("Content-Encoding", "gzip");
		response.setContentLength(b.length);
		//输出
		response.getOutputStream().write(b);
		
		System.out.println("压缩后:"+b.length);
		
		
	}

	/**
	 * The doPost method of the servlet. <br>
	 *
	 * This method is called when a form has its tag value method equals to
	 * post.
	 * 
	 * @param request
	 *            the request send by the client to the server
	 * @param response
	 *            the response send by the server to the client
	 * @throws ServletException
	 *             if an error occurred
	 * @throws IOException
	 *             if an error occurred
	 */
	public void doPost(HttpServletRequest request, HttpServletResponse response)
			throws ServletException, IOException {
		doGet(request, response);
	}

}