/** use httpclient to get the data */
  public static ByteBuffer getDataFromURI(String uri) throws IOException {

    GetMethod get = new GetMethod(uri);

    try {
      new HttpClient().executeMethod(get);
      return new ByteBuffer(get.getResponseBodyAsStream());
    } finally {
      get.releaseConnection();
    }
  }
Esempio n. 2
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 /** 根据模版及参数产生静态页面 */
 public boolean createHtmlPage(String url, String htmlFileName) {
   boolean status = false;
   int statusCode = 0;
   try {
     // 创建一个HttpClient实例充当模拟浏览器
     httpClient = new HttpClient();
     // 设置httpclient读取内容时使用的字符集
     httpClient.getParams().setParameter(HttpMethodParams.HTTP_CONTENT_CHARSET, "gbk");
     // 创建GET方法的实例
     getMethod = new GetMethod(url);
     // 使用系统提供的默认的恢复策略,在发生异常时候将自动重试3次
     getMethod
         .getParams()
         .setParameter(HttpMethodParams.RETRY_HANDLER, new DefaultHttpMethodRetryHandler());
     // 设置Get方法提交参数时使用的字符集,以支持中文参数的正常传递
     getMethod.addRequestHeader("Content-Type", "text/html;charset=gbk");
     // 执行Get方法并取得返回状态码,200表示正常,其它代码为异常
     statusCode = httpClient.executeMethod(getMethod);
     if (statusCode != 200) {
       logger.fatal("静态页面引擎在解析" + url + "产生静态页面" + htmlFileName + "时出错!");
     } else {
       // 读取解析结果
       sb = new StringBuffer();
       in = getMethod.getResponseBodyAsStream();
       br = new BufferedReader(new InputStreamReader(in));
       while ((line = br.readLine()) != null) {
         sb.append(line + "\n");
       }
       if (br != null) br.close();
       page = sb.toString();
       // 将页面中的相对路径替换成绝对路径,以确保页面资源正常访问
       page = formatPage(page);
       // 将解析结果写入指定的静态HTML文件中,实现静态HTML生成
       writeHtml(htmlFileName, page);
       status = true;
     }
   } catch (Exception ex) {
     logger.fatal("静态页面引擎在解析" + url + "产生静态页面" + htmlFileName + "时出错:" + ex.getMessage());
   } finally {
     // 释放http连接
     getMethod.releaseConnection();
   }
   return status;
 }