设置tomcat启用gzip压缩的具体操作方法

 <Connector port="80" protocol="HTTP/1.1" 
    connectionTimeout="20000" 
    redirectPort="8443" executor="tomcatThreadPool" URIEncoding="utf-8" 
       compression="on" 
       compressionMinSize="50" noCompressionUserAgents="gozilla, traviata" 
       compressableMimeType="text/html,text/xml,text/javascript,text/css,text/plain" />

 @Test
  public void testGzip() {
    HttpClient httpClient = new HttpClient();
    GetMethod getMethod = new GetMethod("http://localhost/admin.jsp");
    try {
      getMethod.addRequestHeader("accept-encoding", "gzip,deflate");
      getMethod.addRequestHeader("user-agent","Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.0; Alexa Toolbar; Maxthon 2.0)");
      int result = httpClient.executeMethod(getMethod);
      if (result == 200) {
        System.out.println(getMethod.getResponseContentLength());
        String html = getMethod.getResponseBodyAsString();
        System.out.println(html);
        System.out.println(html.getBytes().length);
      }
    } catch (HttpException e) {
      e.printStackTrace();
    } catch (IOException e) {
      e.printStackTrace();
    } finally {
      getMethod.releaseConnection();
    }
  }